bluuebunny/crossref_metadata_2025 huggingface dataset:
Deux systèmes d’évaluation du statut de conservation des espèces en France : complémentarité ou redondance ? Cas de la Liste rouge et du rapport sur l’état de conservation pour la directive Habitats-faune-flore
Authors: Puissauve Renaud , Gigot Guillaume , Touroult Julien
Published: November 2022

Two systems to assess species conservation status in France : complementarity or redundancy ? The case of the Red List and of the Habitats Directive report on species conservation status.— The Red List of threatened species initiative and Member State reporting under the European "Nature" Directives both provide regular assessments of species conservation status at a national level. Focusing on Habitats Directive species within metropolitan France, this study investigates complementarity and redundancy of both assessment systems. In terms of concepts and classification, the two approaches cover both ends of the conservation status “gradient” (from extinction to favourable conservation status). The national Red List is an alert and monitoring system which measures the risk of extinction for each species within a given taxonomic group. The Habitats Directive assessment measures the gap between current status and “favourable status” for 312 species and subspecies. Despite their different spatial scales (administrative vs biogeographical boundaries), the two assessment systems are broadly similar in terms of methods, organization, data and experts involved. For example, for the studied groups, half of the 140 experts mobilized for the national Red List initiative also contributed to the latest assessment of Habitats Directive species in France. Our study compares the conservation status of over 140 taxa assessed by both methods. The results show a strong consistency between the two systems (63 % of cases), especially for extreme status categories. However, our analysis also highlights conceptual and methodological differences, mainly regarding the definition of thresholds and the concept of favourable reference values. Given limited data and restricted human resources, we suggest several ways to promote their convergence. For example, the mutual comparison of assessments results during the validation phase could provide useful information about inconsistencies ; moreover, the two assessments processes could be synchronized in order to gather expert advice and data more efficiently.
Impact du feu sur la stratégie de régénération d’espèces végétales forestières méditerranéennes
Authors: Ouadah Nadia , Kadik Leila , Bendjedda Nadjiba , Kaabeche Mohamed
Published: November 2022

Impact of fire on the regeneration strategy of Mediterranean forest plant species.

The present study was carried out in the Chrea National Park (Algeria). The main objectives were : understanding forest fire risks, appreciation of the ecological dynamics of the park’s forest ecosystems and evaluation of their resistance to frequent fires. Two species groups, characteristic of the Mediterranean ecosystems and representative of the two main post-fire regeneration strategies : the resprouting strategy, designated by R+ (Quercus suber and Calycotome spinosa) and the non-resprouting strategy, designated by R-(Genista tricuspidata, Cistus salviifolius, Pinus halepensis and Cedrus atlantica), were analysed in two different sites (burned and not burned). The following elements (C, N, P, Ca, Mg, K and Na), present in the soil and the studied plant leaves, were measured and compared with one way-ANOVA analysis. Results showed that the two species groups (R+ vs R-) adopted a different behaviour in respect to fire effect. In the R+ group, four of the seven considered elements (N, K, P and Na) showed significant differences between the two sites. In the R-group, a single element (P) showed a significant difference. These results suggest that the species nutrition behaviour in the post-fire succession process aims to an optimal utilization of soil nutrients, and the vegetation recovery in the early years after fire has an important ecological role in the mobilization of nutrients and their storage in the biomass.
Bee community and associated flora in lowland rain forest and mangrove in southern Brazil
Authors: Dubet da Silva Mouga Denise Monique , Warkentin Manuel
Published: November 2022

Le peuplement d’abeilles et la flore associée en forêt pluviale de plaine et en mangrove dans le sud du Brésil.

Ce travail propose une première caractérisation de la biodiversité de l’apifaune (groupe des apiformes) et de la flore dans une zone protégée du sud du Brésil. Notamment, nous avons observé les interactions entre abeilles et fleurs dans les deux biotopes de la zone, la plaine côtière et la mangrove. Pour cela nous avons échantillonné les abeilles par des captures au filet entomologique et des piégeages dans des coupelles colorées. Nous avons dénombré 60 espèces d’abeilles appartenant aux familles Apidae, Megachilidae et Halictidae. La courbe de raréfaction des espèces d''abeilles s ´ est maintenue en hausse et les estimateurs de richesse montrent 84 et 104 espèces potentielles. Les familles Colletidae et Andrenidae n’ont pas été rencontrées. Des espèces d’abeilles cleptoparasites ont été collectées : Leiopodus lacertinus (Protepeolini), Sphecodes sp. (Halictini) et Coelioxys sp. (Megachilini). Des nids de Trigona braueri, Tetragonisca angustula, Oxytrigona tataíra, Plebeia saiqui (Meliponini), Euglossa iopoecila (Euglossini) et Melitoma segmentaria (Emphorini) ont été trouvés dans les arbres. Une espèce d’abeille de distribution restreinte, Euglossa anodorhynchi (Euglossini) et une nouvelle occurrence, Paroxystoglossa brachycera (Augochlorini), ont été recensées. L’apifaune est très similaire (coefficient de similarité) à celles déjà notées pour d’autres plaines côtières de la région. Les abeilles ont visité 49 espèces de plantes de 28 familles, spécialement Asteraceae, Convolvulaceae et Anacardiaceae. Des interactions d’abeilles ont été vérifiées avec des espèces botaniques de mangrove : Avicennia schaueriana Stapf & Leechm. ex Moldenke (Acanthaceae), Laguncularia racemosa (L.) CFGaertn. (Combretaceae) et Talipariti pernambucense Arruda (Bovini) (Malvaceae).
Approche morphologique, phytocoenotique et fonctionnelle des bryolithes de la basse vallée de l’Isère (de Saint-Marcellin à Romans), France
Authors: Hugonnot Vincent
Published: November 2022

Morphological, phytocoenotic and functional approach of bryoliths in the lower valley of the Isère River (from Saint-Marcellin to Romans), France.

The flora and vegetation of bryoliths located in the main river channel were studied in the vicinity of four dams (Beauvoir, Saint-Hilaire, Pizançon and La Vanelle) in the Isère lower valley. Palustriella commutata is the more frequent species. Other species are locally frequent, as e. g. Eucladium verticillatum, Hymenostylium recurvirostrum, Bryum pseudotriquetrum. From a floristic perspective, bryoliths of the Isère lower valley are typical of temperate Europe. The communities are complex and structured by a small number of bryophyte species that mostly respond to water availability. This type of vegetation is referred to a European priority habitat named «7220 Sources pétrifiantes avec formation de tuf (Cratoneurion)». From a morphological point of view, two main types of bryoliths systems coexist : cascades and dams. The bryoliths of the Isère lower valley, like others from southern France, are characterized by multiple-equilibria, which make them sensitive ecosystems : hydrochemical equilibrium linked to water quality ; biological equilibrium due to encrusting bryophytes occurrence and growth ; hydrological equilibrium due to type of water input. Water supply accounts for floristic, bryocoenotic and functional richness. All carbonate precipitation processes rely heavily on water supply abundance and quality. Studied bryoliths, as they are disconnected from the general hydrological functioning, are strictly dependant of the Molassic aquifers they are fed by. Hence bryoliths of Isère lower valley are oligotrophic systems within an overall eutrophic valley. All bryoliths are threatened by strong anthropic pressure. Trampling, forestry, but mostly water extraction, are worrying threats. Many bryoliths were exploited for building stone in the past. Today, Holocene bryoliths are settled over ancient travertine systems which have a great paleogeographical value.
Biological parameters and parasite loads of eel populations (Anguilla anguilla L.) inhabiting two water bodies in coastal Algeria
Authors: Djouahra Chafika , Arab Abdeslem
Published: November 2022

Paramètres biologiques et charges parasitaires de populations d’Anguille (Anguilla anguilla L.) habitant deux systèmes aquatiques de la côte algérienne.

L’évolution spatio-temporelle des paramètres biologiques (Lt, GSI, HSI, kc) des anguilles européennes, peuplant deux hydrosystèmes différents du littoral algérien, montre qu’il n’y a aucune différence significative de ces paramètres entre deux sous-populations d’anguille du lac Tonga, l’une parasitée (PT) et l’autre non parasitée (NPT) par le Nématode Anguillicoloides crassus ; mais nous notons une différence significative entre ces deux sous-populations d’anguilles du lac Tonga et la sous-population d’anguilles non parasitée (NPT) du port de Bou Haroun, sauf pour le poids total (Wt). Les valeurs les plus élevées du coefficient de condition (kc) sont observées chez les anguilles du lac Tonga. Le nombre élevé de parasites (NP ≥ 10) par vessie natatoire influence négativement tous les paramètres biologiques. Dans les deux stations, les conditions vitales des anguilles sont minimales en été et au printemps. L’analyse en composantes principales (PCA) distingue deux groupes d’anguilles. Le premier groupe réunit les individus du lac Tonga autour des indices parasitaires et de l’oxygène dissous. Le deuxième groupe réunit les anguilles du port de Bou Haroun autour des paramètres de pollution. Nous notons aussi que le parasite n’a pas été signalé au port de Bou Haroun du fait qu’il ne se développe probablement pas dans un tel milieu. Ce nématode ainsi que l’anguille préfèrent les milieux non pollués et à faible salinité, tel le lac Tonga.
Étude phytogéographique des massifs forestiers de Kéfrida, un secteur méconnu de la zone importante pour les plantes des Babors (Nord-Est algérien)
Authors: Bouchibane Mebarek , Véla Errol , Bougaham Abdelazize Franck , Zemouri Mourad , Mazouz Azzedine , Sahnoune Mohamed
Published: November 2022

Afin d’apporter une meilleure connaissance sur la flore de Petite Kabylie (Béjaïa, Algérie), dans l’objectif de conservation du patrimoine naturel, une étude phytogéographique a été menée sur la végétation forestière dans deux massifs montagneux peu étudiés du secteur de Kéfrida, mitoyen de la ZIP (zone importante pour les plantes) des Babors. L’inventaire floristique réalisé au niveau des groupements forestiers de Chêne zéen (Quercus canariensis Willd.), de Chêne afarès (Q. afares Pomel) et des pelouses de montagne a permis de comptabiliser 332 espèces de plantes vasculaires. En plus des 205 (62 %) espèces méditerranéennes qu’il abrite, le site est remarquable par la présence de 37 (11 %) endémiques ou sub-endémiques algériennes et surtout 79 (23 %) espèces de l’ensemble holarctique non méditerranéen. L’analyse du spectre biologique brut montre une dominance significative des hémicryptophytes (48 %) sur les autres formes de vie (7,2 – 22,5 %). Cette zone constitue un refuge actuel exceptionnel pour une flore d’origine non méditerranéenne et/ ou endémique, dans un contexte de réchauffement climatique. On note la présence de quatorze espèces déterminantes pour le secteur de Kéfrida étudié, dont huit en commun avec la ZIP des Babors et celle d’Akfadou et quatre en commun avec les ZIPs de Djurdjura et des monts de la Medjerda. La zone étudiée présente aussi un nombre appréciable de plantes importantes pour l’Algérie. Cette présence d’espèces déterminantes et/ ou importantes pour le pays permet de classer le secteur de Kéfrida comme une extension de la ZIP des Babors.
User de pesticides pour contrôler les espèces invasives : les facettes d’un paradoxe éthique
Authors: Tassin Jacques
Published: November 2022

Use of pesticides in invasive species control : facets of an ethical paradox.

The control of invasive species impacting environment or human health sometimes involves the use of lethal chemicals. Yet, while the interest of pesticides in invasive species control is undeniable, their impact should not be overlooked. From year to year the use of rodenticides with a low selectivity (e. g. brodicafoum or 1080), of persistent insecticides such as neonicotinoids and of systemic herbicides (e. g. glyphosate) actually concerns more and more large areas. The literature provides many examples of negative side effects on biodiversity or human health that should be more transparently reported. Risk assessment of pesticide use remains incomplete for invasive species, and the risk-benefit approach that would impose is still lacking. This use of pesticides involves an ethical paradox since it is part of an approach which aims to protect wildlife, and since in the context of public health policy, it sometimes puts people to new health risks. In general, the effectiveness of pesticides in the control of invasive species also remains poorly evaluated. It seems imperative to put the citizen at the heart of decision-making or at least to advocate greater transparency regarding all the expected benefits and risks. Similarly, ethics gap aroused from the use of pesticides is to evaluate. It is not justifiable that the issue of animal rights is so much departed from vertebrate control programs. Imposed suffering to these animals is a reality and it is not for scientists to decide alone what in our relations with the animal, is acceptable or not. The field of invasive species should not be an exception in global discussions conducted on pesticides. However, the representation that invasive species escape to nature as we think it should be, contributes to validate the use of resources normally prohibited in natural areas. We must continue to wonder about the basis for these breaches of environmental protection and environmental ethics. They correspond to a rejection of values that are not so shared by our communities.
Echium modestum Ball, Plantago benisnassenii Romo, Peris et Stübing, Teucrium doumerguei Sennen : nouveaux taxons pour la flore d’Algérie (Massif des Traras)
Authors: Zohra Hannane Fatima , Hadjadj Aoul Seghir , Véla Errol
Published: November 2022

Echium modestum Ball, Plantago benisnassenii Romo, Peris & Stübing, Teucrium doumerguei Sennen : new taxa for the Algerian flora (Traras Mountains).

With the purpose of studying dry grassland plant groups in northwestern Algeria, we were led to sample and collect plant material. The identification and comparison with the current resources allowed us to add three taxa Echium modestum Ball, Plantago benisnassenii Romo, Peris & Stubing and Teucrium doumerguei Sennen to the Algerian flora. Two of these species, up to now endemic of Beni Snassen, eastern Morocco, are reported for the first time in the Traras Mountains. E. modestum is more widespread in Morocco than the other two. Their distributions, taxonomic and chorological statuses are discussed with an overview on the ecology of the localities where they were reported.
High densities of the french coastal endemic bluethroat (Cyanecula svecica namnetum) revealed in intertidal reed beds and conservation perspectives towards sea level rise
Authors: Musseau Raphaël , Beslic Sonia
Published: November 2022

Our study deals with density estimation in intertidal reed beds of the Gironde estuary (France) of the French endemic subspecies of Bluethroat breeding along the Atlantic coast (Cyanecula svecica namnetum).

We analysed count point data collected during the beginning of the breeding period, with information gathered from 94 stations distributed over 100 hectares. Analysis of data integrating bird detection probability as a function of the detection distance (distance sampling) allowed us to estimate an average density of 20.5 ± 3.7 males for 10 hectares (14.4 – 29.5 within the 95 % CI). Up to now, no equivalent densities have been documented for this endemic taxa which is of conservation concern given its relatively high degree of specialization in terms of ecological resources exploited and its limited range and numbers. Despite their singularity given the limited size of the study area, our results confirm the particular importance of coastal marshes for C. s. namnetum. In view of strong alterations of coastal habitats due to the rise in sea level already observed in the breeding grounds of C. s. namnetum, our results highlight the interest in developing conservation strategies for habitats exploited by the taxa, integrating the potential key roles of back littoral areas in order to compensate losses of habitats due to the ongoing and forthcoming effects of global changes.
Écologie saisonnière d’une espèce du genre Monophadnus (Hymenoptera : Tenthredinidae) sur Helleborus spp. et tentative de lutte biologique
Authors: Malacari Lucas , Pétremand Gaël , Cochard Bastien , Lefort François , Rochefort Sophie
Published: November 2022

Depuis plusieurs années, un insecte du genre Monophadnus (Hymenoptera, Tenthredinidae : Blennocampinae) cause de sérieux dégâts aux collections de plantes du genre Helleborus des Conservatoire et Jardin Botaniques de Genève (CJB). Cette étude avait pour objectif de mieux connaître l’écologie saisonnière de cette espèce grâce à la mise en place d'élevages et à des observations in situ. Des essais de lutte biologique ont été également menés avec des champignons entomopathogènes des espèces Beauveria bassiana et Isaria farinosa, ainsi qu’avec un insecticide biologique, l’azadirachtine, extrait d’Azadirachta indica (NeemAzal ® T/ S). Seuls le NeemAzal ® T/ S à la concentration de 0,5 % et Isaria farinosa à 107 spores/ ml ont permis de réduire significativement la population de cette espèce de Monophadnus provoquant des mortalités de 40 à 50 % plus élevées que dans le procédé témoin.
Habitats larvaires et sensibilité des vecteurs du paludisme aux insecticides dans des localités (semi-urbaine et rurale) de la région du littoral camerounais : données préliminaires
Authors: Ntonga Akono Patrick , Mbida Mbida Arthur , Awono Ambene Parfait , Youmbi Enga Lyonnais , Abdel Kayoum Yomon , Kekeunou Sévilor
Published: November 2022

Larval habitats and susceptibility of malaria vectors to insecticides in semi-urban and rural localities of the Coast-Cameroon region : preliminary data.

Choosing an appropriate strategy for mosquito control in an eco-climatic facies requires knowledge of vector ecology, including the spatial distribution and productivity of larval habitats and their level of susceptibility to insecticides. This study maps, characterizes the mosquito breeding sites and evaluates the susceptibility to insecticides of malaria vectors to Banya II and Bodiman, two semi-urban and rural areas of the coastal region of Cameroon. The field surveys were conducted in May 2015. The mosquito breeding sites were geo-referenced. For each breeding site, larvae were collected then reared and physico-chemical parameters measured in situ. The susceptibility of vectors to dichlorodiphenyltrichloroethane (DDT), deltamethrin and permethrin was evaluated on the anopheline obtained from larva rearing. A variety of breeding sites has been identified in the study sites (ponds, rivers, ditches, tires, plastic wrap, water storage containers, abandoned containers, papaya holes, bamboo holes). However, Anopheles gambiae s. l, the most abundant species in Banya II was more common in the pools, while Culex poicilipes, the most abundant species in Bodiman was mainly collected in abandoned containers. The two categories of breeding sites had respectively electrical conductivity of 167.5 [16.9-305] and 170.43 [11.6-461] μs/cm, salinity of 90.5 [23.5-157] and 94.63[15-240] g/l and total dissolved solids of 119.6 [20.6-215] and 123.3 [7.8-354] ppm. Insecticides tests revealed mortality rates below 85 % for the Banya II Strain of A. gambiae s. l. and over 98 % for the Bodiman strain of A. nili. These informations should be taken into account for a better orientation of control strategies in order to control effectively the vectors in the study localities.
Biodiversity and abundance of gelatinous zooplankton along the Algerian coast
Authors: Khames Ghollame Ellah Yacine , Hafferssas Aziz
Published: November 2022

Biodiversité et abondance du zooplancton gélatineux le long de la côte algérienne.

La distribution du zooplancton gélatineux (Siphonophorae, Salpidae, Doliolidae, Appendicularia, Chaetognatha et Mollusca) a été étudiée durant les quatre saisons sur un ensemble de stations le long de la côte algérienne. Sur 56 espèces reconnues, la diversité a été plus grande au printemps et l’abondance a été plus importante au printemps et en été. La composition taxinomique a varié selon les saisons : les assemblages printaniers ont été plus diversifiés, comprenant essentiellement des espèces de Thaliacea ; les assemblages d’été ont été dominés par Doliolum nationalis et Flaccisagitta enflata ; les assemblages d’automne ont été caractérisés par les deux espèces gélatineuses les plus abondantes et les plus fréquentes (F. enflata et Oikopleura longicauda) ; et les assemblages d’hiver ont été caractérisés par des espèces carnivores.
Perturbations de la reproduction chez Zosterisessor ophiocephalus (Pisces, Gobiidae) dans une lagune méditerranéenne polluée (Bizerte, Tunisie)
Authors: Louiz Ibtissem , Ben Attia Mossadok , Kalthoum Ben Hassine Oum
Published: November 2022

Reproductive disorders in Zosterisessor ophiocephalus (Pisces, Gobiidae) in a polluted lagoon (Bizerta, Tunisia).

Gonad histopathology data are increasingly being used as indicators of reproductive disorders since they provide a definite biological end-point of historical exposure to endocrine disruptors. Here, a comparative study of some reproduction biological aspects, such as gonad histology, gonadosomatic index (GSI), hepatosomatic index (HSI) and condition index (CI) of mature Grass Goby (Zosterisessor ophiocephalus), was carried out in Bizerta lagoon where chemical contamination is proven and in a reference station free of this type of contamination. For this purpose, female and male gobies were collected during the breeding season (April 2006) in three stations in Bizerta lagoon (Menzel-Abderrahemen, Menzel-Bourguiba and Menzel-Jemil), differently impacted by contaminants, including PAHs, PCBs, DDT, organotins and heavy metals, and in the seaward entrance of Ghar el Melh lagoon (reference station). In both sexes, we detected the presence of an overall weaker GSI in Bizerta lagoon than in control fish. These GSI alterations were accompanied by most pathological changes. In females, a higher incidence of oocyte lesions (atretic oocytes and cytoplasmic retraction) was found in stations located near agricultural activity zones. Histologic observation of the testes revealed, as well, abnormalities in Bizerta lagoon fish such as germ cells syncytia, vacuolated germ cells and increase of gaps in the interstitium between lobules. These abnormalities were detected with a high prevalence in stations influenced by industrial and/ or urban activities. This study provides insights on the effects of various environmental stressors on Z. ophiocephalus reproductive health. Nevertheless, much research is needed to understand the cause of observed changes and their long-term effect on fish reproductive health, on population fitness and on this species survival in Bizerta lagoon.
Secondary succession and root biomass changes in madagascar dry deciduous forest (Mikea forest)
Authors: Randriambanona Herizo , Razanaka Samuel , Randriamalala R.J. , Grouzis Michel
Published: November 2022

Succession secondaire et changements de la biomasse racinaire en forêt décidue sèche à Madagascar (forêt Mikéa).

La structure et la distribution de la biomasse racinaire ont été caractérisées le long d’une chronoséquence de forêt secondaire (jachères âgées de 2, 6, 12 et 30 ans) et deux écosystèmes de référence (une forêt mature et une savane boisée) afin de décrire le processus de régénération de la forêt dense sèche dans le sud-ouest de Madagascar. La distribution de la biomasse racinaire en fonction de la profondeur s’ajuste bien à une fonction puissance de type B = aDb (B : biomasse racinaire en mg. dm-3 et D : profondeur en cm). Les racines sont plus profondes dans les forêts matures et les jachères jeunes mais elles sont plus superficielles dans les vieilles jachères et la savane boisée où les sols sont plus compacts. La biomasse racinaire augmente avec l’âge de la jachère jusqu’à la douzième année et une diminution a été enregistrée dans la jachère de 30 ans. La biomasse racinaire était de 3,58 t. ha-1 dans la jachère de 2 ans, 4,96 t. ha-1 dans la jachère de 6 ans et 10,00 t. ha-1 dans la jachère de 12 ans. Les valeurs de la biomasse racinaire des jachères et de la savane boisée (7,00 t. ha-1) sont largement inférieures à celles de la forêt mature (18,5 t. ha-1). Ainsi, le coût écologique de la déforestation dans la zone d’étude correspond une perte de 16,9 t. ha-1 de biomasse racinaire après 30 ans d’abandon.
La végétation dunaire du littoral de Jijel (Algérie) : proposition d’une nouvelle Zone Importante pour les Plantes
Authors: Khennouf Hanane , Chefrour Azzedine , Corcket Emmanuel , Alard Didier , Véla Errol
Published: November 2022

Les dunes littorales de Jijel se situent entre deux Zones Importantes pour les Plantes (ZIP ) et enclavent un site Ramsar. Cet écosystème fragile et très convoité par le public héberge des groupements caractéristiques et des plantes de grande valeur patrimoniale. Trois sites ont été sélectionnés pour l’étude de la végétation selon la méthode du relevé phytosociologique. L’analyse floristique a permis de dresser une liste de 235 espèces végétales et de décrire les groupements végétaux présents sur les dunes. L’analyse biogéographique permet d’évaluer à 68,3 % l’originalité méditerranéenne de la flore, et à seulement 2,5 % l’endémisme. Les dunes de Jijel présentent une grande richesse floristique et abritent plusieurs espèces répondant aux critères de classification de ZIP. Certaines plantes sont inédites pour la région de Jijel, et plusieurs autres nécessitent une révision de leur distribution et leur abondance.
Conservation d’une population de Mouflon à manchettes (Ammotragus lervia Pallas, 1777) (Mammalia, Bovidae) dans un espace clos : cas de la réserve d’Amassine dans le Haut-Atlas (Parc National du Toubkal, Maroc)
Authors: Ramzi Hassan , Qarro Mohamed , Zine Al Abidine Abdennabi , Abrioui Amine
Published: November 2022

Conservation in fenced area of a population of Barbary sheep (Ammotragus lervia Pallas, 1977) (Mammalia, Bovidae) : the case of Amassine reserve in High Atlas (Toubkal National Park, Morocco).

The Amassine reserve, located in the Toubkal National Park (Central High Atlas) and intended for the conservation of the Barbary sheep (Ammotragus lervia), shows signs of imbalance between the population size and the carrying capacity of the environment. The objective of this study is to assess this imbalance according the population size, through the diagnosis of the state of the vegetation and the analysis of their interactions. Since the introduction of 10 individuals in a fenced area of 150 ha in 1999, the animal population has increased to 85 individuals in 2006 with a density of 56.67 Barbary sheep / 100 ha but decreased to 24 in 2015 (16 individuals / 100 ha). The increase in number was accompanied by herbivory pressure over time. An overall global damage rate on vegetation was estimated at 10.98 % in 2015. In addition, the installation of the reserve is poorly tolerated by the human local populations because of its location within their activity space. The present state of the Amassine reserve undermines the objective of conservation and rehabilitation of the animal. The conservation of this animal would have required prior consultation with the local population, a permanent bioecological monitoring and the adoption of a management approach of the reserve allowing a sustainable balance between the animal and the resources of the environment.
Évaluation d’une méthode de suivi à long terme du gecko Euleptes europaea sur l’île du Grand Rouveau (archipel des Embiez, Var, France)
Authors: Cheylan Marc , Rivière Vincent , Cheylan Aurélien
Published: November 2022

Evaluation of a long-term method to monitor the gecko Euleptes europaea on Grand Rouveau Island (Embiez Archipelago, Var, France)

Population surveys are a prerequisite for evaluating the demographic trends of species. Moreover, they are indispensable for assessing conservation measures implemented to protect threatened species. Accurate surveys require robust methods that can be easily reproduced over time. The aim of this study conducted on Grand Rouveau Island was to test the applicability of a long-term monitoring method to a threatened cryptic and nocturnal species : the European leaf-toed gecko Euleptes europaea. The method consisted of constructing artificial refuges attractive to the species to simplify monitoring of the population. To this end, two types of shelters were tested : one type was constructed from honeycomb brick and the other from curved ceramic roof tiles covered with piles of stones. The results showed that the system consisting of three superimposed tiles was particularly suitable for the desired objectives. It is simple to construct, easy to monitor and little affected by temporal, meteorological or observer bias. The shelters of this type placed in May 2014 were rapidly colonized by the species on a long-term basis, as indicated during the first four years of monitoring. This method could allow future studies to better define the ecological requirements of this species and to assess the success of the ecological engineering actions carried out on the island, which include the elimination of the invasive exotic ice plant

Carpobrotus edulis and the black rat Rattus rattus.
Odonata of the Mazafran hydrosystem : distribution and community structure
Authors: Sellam-Bouattoura Nassima , Attou Fouzia , Arab Abdeslem , Samraoui Boudjéma
Published: November 2022

Les Odonates de l’hydrosystème du Mazafran : distribution et structure de communauté.

L’un des objectifs de notre étude est d’acquérir une meilleure connaissance sur les Odonates du réseau hydrographique du Mazafran, situé au centre-nord de l’Algérie. Cette région, jusqu’à présent inexplorée du point de vue odonatologique, se caractérise par un climat méditerranéen subhumide avec une période sèche qui s’étale sur six mois environ, de mai à la fin d’octobre. La prospection de 19 stations réparties dans le réseau hydrographique du Mazafran, sur une durée de 24 mois consécutifs (d’avril 2013 à mars 2015) nous a permis de recenser 948 Odonates adultes appartenant à 15 espèces. Calopteryx haemorrhoidalis (33,1 %) et Platycnemis subdilatata (20,5 %) sont les plus abondantes et les plus fréquentes d’entre elles. Les résultats révèlent la présence d’Ischnura pumilio, qui, actuellement, n’est plus connu en Algérie que de la Numidie (nord-est du pays) et est rare au Maghreb. Les caractéristiques physicochimiques et climatiques des oueds qui composent le réseau hydrographique du Mazafran, ainsi que l’irrégularité des écoulements qui conduisent, notamment, à l’augmentation de la température des eaux en été, ont un impact considérable sur les stations localisées en basse altitude. Combiné aux rejets d’eaux usées urbaines, aux effluents industriels, à la destruction des lits, aux pompages anarchiques de l’eau à des fins agricoles et à la réduction du couvert végétal dont les Odonates sont fortement dépendants, la destruction des habitats, par l’altération de ses composantes (biotiques et abiotiques) s’avère certaine.
Contribution à la gestion durable du bassin versant du Wouri par une étude de la répartition de sa faune culicidienne (Littoral-Cameroun)
Authors: Mbida Mbida Arthur , Ntonga Akono Patrick , Awono Ambene Parfait , Simo Wopo Hermann , Talipouo Abdou , Tchoffo Fobasso Romeo , Dongmo Alain , Lehman Gustave , Mimpfoundi Remy
Published: November 2022

Une étude comparative entre la diversité et la productivité culicidiennes du fleuve Wouri et celles de sa rive a été menée pour évaluer la possibilité de préserver le cours d’eau d’un "larviciding" qui affecterait les ressources halieutiques lors des campagnes anti-larvaires. Les stations d’étude sur le fleuve Wouri et les gîtes larvaires de sa rive ont été cartographiés, leur productivité culicidienne ainsi que leurs paramètres physico-chimiques mesurés. Les moustiques échantillonnés ont été identifiés morphologiquement et ceux du complexe Anopheles gambiae par la biologie moléculaire. Huit types de gîtes larvaires ont été répertoriés sur la rive avec une fréquence plus élevée des gîtes artificiels dont la productivité culicidienne était significativement plus élevée que celle des gîtes naturels. Les communautés culicidiennes du fleuve Wouri et de sa rive présentaient une similarité spécifique. Cependant 93 % de l’ensemble des moustiques échantillonnés et 94 % des vecteurs du paludisme identifiés provenaient de la rive. La préservation du fleuve Wouri pourrait être envisagée lors des campagnes de "larviciding" compte tenu de sa productivité culicidienne, de son importance écologique et socio-économique.
Comparaison de l’habitat estival de quatre cétacés teuthophages préférentiels en Méditerranée nord-occidentale
Authors: Gannier Alexandre
Published: November 2022

Comparison of the summer habitat of four preferential teuthophagous cetaceans in north-western Mediterranean Sea.

More than 50 squid species inhabit the Mediterranean Sea and four of the common cetacean species are preferential squid eaters. This suggests that teuthophagous cetaceans might be in competition for food and suitable habitats. Descriptive and multivariate analyses were carried out from long term dedicated survey data (1988-2012) in the north-western Mediterranean, including the northern Tyrrhenian Sea. A total of 298 on-effort sightings were obtained between 1988 and 2012, including 202 on effective effort : 157 observations of Sperm whale, 39 of Cuvier's beaked whale, 49 of Long-finned pilot whale and 53 of Risso's dolphin. Five environmental variables (depth, slope, distance-to-200m-isobath (D200), monthly chlorophyll concentration and SST) were defined for every 3x3 km cell in the western basin, as well as summer sighting rates using Pennington estimators for each individual species. Based on Kruskal-Wallis test, the observed habitats were not homogeneous for all species, excepted for SST : preferred depth was significantly distinct for each species. D200 was also distinct, with the exception of the pair Cuvier's beaked whale/ pilot whale. Based on a discriminant analysis (stepwise ascending mode), four variables contributed significantly (Wilk''s lambda = 0.49) to habitat description of the four species, the most important of them being the depth. Discriminant function was highly efficient to classify Cuvier's beaked whale and pilot whale habitats (respectively 84.6 % and 83.7 % success rate), but sperm whale was poorly discriminated from other species (29.6 % correct prediction). Cuvier's beaked whale and pilot whale habitats were well separated, when those of sperm whale and Risso''s dolphin largely overlapped. From available results from different regions worldwide, it seems that Risso's dolphins and pilot whales are rarely abundant together in a given area, which raises the question of a possible competition between these teuthophagous delphinids. Based on published literature, these findings are correlated with known diet preferences, even if sperm whale preys are still poorly documented in the Mediterranean.
Robust Biplot Analysis of Natural Disasters in Indonesia from 2019 To 2021
Authors: Venelia Hilda , Nisa Khoirin , Wibowo Rizki Agung , Muda Mona Arif
Published: November 2022

Indonesia is one of the most natural disaster-prone countries in the world, frequently exposed to a range of hazards. Currently, Indonesia has 34 provinces and natural disasters that occur in each province are different, therefore it is necessary to analyze the mapping of natural disasters that often occur in each province to provide scientific analysis for risk management of the natural disasters. One of the quick steps in describing data that can be used is biplot analysis, as biplot analysis can describe a lot of data then summarized it into the form of a two-dimensional graph. The aim of this research is to map 34 provinces in Indonesia based on the incidence of natural disasters from 2019 to 2021 using robust biplot analysis. Based on the result, robust biplot analysis can explain 87,9% of the information on natural disasters in every province in Indonesia. Lampung, Bengkulu, Bangka Belitung, Special Region of Yogyakarta, North Sulawesi, West Sulawesi, Southeast Sulawesi, Gorontalo, East Nusa Tenggara, Bali, Maluku, West Maluku, Papua, and West Papua are provinces that have similar natural disaster characteristics. Flood, tornado and forest and land fires are natural disasters that often occur in Indonesia. The provinces that have the highest risk of flood, landslide, and tornado were West Java, Central Java, and East Java. Then, the provinces with the highest risk of forest and land fires were Aceh and South Kalimantan.
Mobility-Covid-19 Impact Quadrant : Quantitative Approach to Analyze Community Responses to Covid-19 Pandemic
Authors: Bustaman Usman
Published: November 2022

There are two premises regarding the relationship between mobility and COVID-19, namely: (1) mobility affects the spread of COVID-19, or (2) the spread of COVID-19 affects mobility. This paper further explores both premises to analyze community responses to COVID-19 pandemic using Google Mobility Index (mobility) and the COVID-19 Spread Risk Index (risk) of Indonesia. Cross-correlogram of both indices is examined to determine optimum values called Risk Detection Time (Rdt). A scatter plot of Rdt and its correlation coefficient resulted Mobility-COVID-19 Impact Quadrant which maps the community responses into four zones based on quadrant ‘conscious–competence’ framework. The results confirmed both premises: (1) risk can be triggered by mobility in the previous few days, or (2) mobility can represent the community responses to risk information in the previous few days. Regarding the mobility restriction implemented in Indonesia, the analysis shows that the community responses leaped from Learning zone in PSBB period (15/03/2020 to 31/05/2020) to the Recovery zone in the New Normal and PPKM period (01/06/2020 to 02/07/2021). However, the policy was late responded so that the recovery target did not go as expected and brought the community into Fear and Uncertainty zone in the Emergency PPKM period (starting from 03/07/2021).
Classification of Village Development Index at Regency/Municipality Level Using Bayesian Network Approach with K-Means Discretization
Authors: Utami Nasiya Alifah , Wijayanto Arie Wahyu
Published: November 2022

Village development has been one of the most important targets of government policies in Indonesia in order to fully optimize its potential. Under Law 06 Year 2014 on Villages, local governments from regency/municipality level to village level are required to understand their respective village potentials in order to increase the village potentials in their regions. In this paper, we build and analyze the Bayesian network methods to classify the village development index at regency/municipality and gain a better understanding of the causal relationships between independent variables of the village potential status. Using a web scraping method of information retrieval, data are collected from the Ministry of Village, Development of Disadvantaged Regions, and Transmigration (Kemendesa) website, and Village Development Evaluation (Indeks Pembangunan Desa—IPD) of Statistics Indonesia (BPS) publication in 2018 data. Further, we combine the discretization using the K-Means clustering method to handle the continuous nature of retrieved data. An extensive comparison of different learning structures of the Bayesian Network is performed, which includes the learning structure of Naive Bayes, Maximum Spanning Tree with weighted Spearman correlation coefficient, Hill Climbing search, and Tabu Search during the construction of Bayesian networks. For fairness evaluation, all constructed models are built using 80% data as a training set and the remaining 20% as a testing set. The results show that Bayesian network approach can be applied in village development index status classification where the construction using maximum spanning tree with K-Means data discretization gain the best performance of 90.69% accuracy.
Adoption of Agriculture Mechanization on Paddy Farmers in Indonesia: Demographic Determinants, Internet Access Influence, and The Impact of Adoption on The Yield
Authors: Kadir Kadir , Prasetyo O. R.
Published: November 2022

This study aims to identify the demographic determinants of the agriculture mechanization adoption on paddy farmers in Indonesia and the impact of internet use by farmers on the probability of being adopters. Besides, it also analyses the difference in the average paddy yield cultivated by adopters and non-adopters to determine the adoption impact on agricultural productivity. We found that farmers' level of education and age significantly impacts the probability of being adopters. However, the magnitude of the age impact tends to be diminishing with the increase in age. The probability of being adopters is affected significantly by gender, region, and the farm scale. Male farmers tend to be more likely of being adopters than their female counterparts. Farmers in Java have a slightly higher probability of being adopters than farmers outside Java. Adopting agriculture mechanization also has a positive association with the farm scale, where the larger the farm scale, the more likely the farmers are to be adopters. Our study also found that internet use positively and significantly impacts the farmers' probability of being adopters. Moreover, our study also confirmed a strong indication that the mechanization adoption affects the paddy yield positively indicated by the higher paddy yield average of adopters than non-adopters. Therefore, boosting the adoption of mechanization must be done, for instance, by attracting young people with high education to get involved in agriculture and up-scaling the implementation of tools and agricultural machinery assistance facilitated by the government.
ANALISIS PERBANDINGAN PERFORMA METODE ENSEMBLE DALAM MENANGANI IMBALANCED MULTI-CLASS CLASSIFICATION
Authors: Meidianingsih Qorry , Meganingtyas Devi Eka Wardani
Published: November 2022

Penelitian ini fokus pada membandingkan kinerja beberapa metode ensemble dalam mengatasi imbalanced multi-class classification dimana metode dekomposisi one-versus-one (OVO) diterapkan sehingga metode klasifikasi Support Vector Machine yang standar dapat digunakan. Data penelitian merupakan hasil bangkitan software R yang dirancang berdasarkan level persentase kelas minoritas, yaitu menjadi kategori extreme, moderate, dan mild. Selain itu, dirancang pula kombinasi jumlah kelas mayoritas dan minoritas yang mungkin terjadi sehingga terdapat sembilan jenis data simulasi. Hasil penelitian menunjukkan bahwa secara umum rata-rata ketepatan klasifikasi paling rendah diperoleh ketika data simulasi bersifat moderate dengan sebaran gugus data terbagi menjadi 2 kelas mayoritas dan 1 kelas minoritas. Metode safe-level SMOTEBagging memberikan performa yang paling baik bagi semua jenis data simulasi, terutama ketika gugus data bersifat ekstrim, yaitu ditunjukkan dengan nilai rata-rata akurasi yang diperoleh sebesar 98.60 persen. Kinerja metode klasifikasi SVM cukup baik dimana nilai rata-rata tingkat akurasi setiap kelas berkisar antara 67.80-98.60 persen.
Analisis Bibliometrik pada Penerapan Artificial Intelligence di Smart Manufacturing
Authors: Daniaty Diah , Firmansyah Benny , Ardiansyah Aan , Efendi Toni
Published: November 2022

Dengan kemajuan teknologi yang pesat di era revolusi industri 4.0, sistem manufaktur bertransformasi dan bergeser menuju ke era digitalisasi pabrik. Studi ini menyelidiki bagaimana penerapan artificial intelligence (AI) pada smart manufacturing dibahas dalam literatur akademis saat ini. Berdasarkan teknik bibliometrik, 399 publikasi diambil dari database Scopus dari 2013 hingga 2022 dan dianalisis untuk mengidentifikasi pola perubahan penelitian AI, sumber jurnal yang paling produktif, negara yang paling banyak dikutip, studi yang paling berpengaruh, dan kata kunci yang paling relevan. Topik-topik terbaru terkait penerapan AI pada smart manufacturing juga diidentifikasi. Program VOSViewer dan Biblioshiny digunakan untuk melakukan analisis bibliometrik. Penelitian AI juga berfokus pada peran teknologi lain seperti internet of things (IoT), cloud computing, big data, edge computing, blockchain, dan digital twin dalam mendukung kegiatan manufaktur, seperti meningkatkan otomatisasi, melakukan analisis prediktif, dan mengukur performa. Studi ini menjelaskan pandangan akademisi dan praktisi tentang apa yang telah diteliti dan mengidentifikasi kemungkinan peluang untuk studi masa depan.
Analisis Spasial Upah Minimum Kabupaten/Kota di Provinsi Jawa Tengah Tahun 2017-2021 dengan Model SAR-RE
Authors: Japany Adham Malay , Firnanda Annisa
Published: November 2022

Sebagai balas jasa tenaga kerja, imbalan yang diberikan biasanya dalam bentuk upah atau gaji. Dalam menjaga kestabilan upah, dibentuklah upah minimum. Kemiripan Upah Minimum Kabupaten/Kota (UMK) di Provinsi Jawa Tengah tidak terlepas dari efek spasial. Sehingga, penelitian ini bertujuan untuk mengidentifikasi pengaruh spasial dan mengetahui variabel-variabel yang memengaruhi UMK di Provinsi Jawa Tengah. Data yang digunakan dalam penelitian ini berupa data sekunder dari website BPS Provinsi Jawa Tengah dengan unit observasi sebanyak 35 kabupaten/kota tahun 2017-2021. Model terbaik yang digunakan adalah Spatial Autoregressive Random Effect (SAR-RE). Hasil pengujian menunjukkan bahwa terdapat tiga variabel yang signifikan, yaitu variabel PDRB ADHK dan IPM berpengaruh positif, serta variabel pengeluaran per kapita yang berpengaruh negatif. Selain itu, UMK di suatu wilayah juga berpengaruh positif dan signifikan terhadap UMK di sekitarnya, sedangkan TPAK tidak berpengaruh terhadap UMK di Provinsi Jawa Tengah tahun 2017-2021.