bluuebunny/crossref_metadata_2025_split huggingface dataset:
Decomposition Analysis of Finnish Material Flows: 1960–1996
Authors: Hoffrén Jukka , Luukkanen Jyrki , Kaivo‐oja Jari 
Published: July 2002

SummaryTo the extent that environmental impacts are the consequence of the magnitude of total material input into production in an economy, they can be lessened by reducing the use of materials—by concentrating on what has been called qualitative growth. This article presents a summary of Finnish resource use over the period 1960–1996 as a means of evaluating the trends in material use and providing a basis for assessments of sustainability. It adapts the technique of decomposition analysis developed in the field of energy studies to distinguish the effects of changes in aggregate economic activity (“activity effect”), composition of industrial activity (“structural effect”) and materials intensity of use (“intensity effect”) on a sectoral basis.pAccording to the analysis presented here, materials consumption in Finland has grown substantially between 1960 and 1996 in the electricity, gas and water supply, pulp and paper production, civil engineering, and mining and quarrying sectors. In the same period, the ratio of GDP/mass of material mobilized has improved by 175 percent. Economic growth has caused the largest increases in materials use in the building of infrastructures; for example roads, waterways, means of supplying electricity, gas, and water, and in the production of paper and paper products. The least growth took place in the transport, basic metals production, and mining and quarrying sectors.
Energy Efficiency and Structural Change in the Netherlands, 1980–1995
Authors: Farla Jacco C. M. , Blok Kornelis 
Published: July 2002

SummaryInternational agreement has been reached to reduce greenhouse gas emissions worldwide. One important way of decoupling CO2 emissions from economic growth is by introducing technical measures to improve energy efficiency. In this article, we assess the influence of developments in energy efficiency and economic structure on the total primary energy consumption in the Netherlands over the period 1980– 1995. We find a distinct decoupling of the economic growth and energy consumption of 1.5% per year in the 15‐year analysis period. We measure (technical) changes in energy efficiency by changes in the energy consumption per physical unit of production or activity. The aggregate rate of (technical) energy‐efficiency improvement was 1.4% per year over the period 1980–1995. The use of physical production indicators makes it possible to measure energy‐efficiency developments without detailed surveys at a very low level of aggregation. When we look at economic structural changes over this period, we find that (i) no substantial shift took place at the level of the economic sectors that we distinguish; (ii) the most energy intensive subsectors grew much faster than the total economy; and (iii) at the subsector level, on average, a sizable decoupling of physical production and value added occurred. We conclude that structural changes, that is, changes in the composition of the economy, did not lead to a net decrease in the energy intensity of the Netherlands over the period 1980–1995.
Pet Attachment and Dissociation
Authors: Brown Sue-Ellen , Katcher Aaron 
Published: July 2002

AbstractThis study replicated the co-existence of dissociation and pet attachment in 113 female veterinary technician students based on a bivariate correlation analysis and chi-square analysis of their responses to the 28-question Dissociative Experiences Scale and an eight-question "pet" attachment questionnaire.The study replicated the positive correlation between pet attachment and dissociation first reported by Brown & Katcher (1997). Also replicated was the finding that significantly more with the highest pet attachment had clinical levels of dissociation than did those with lower attachment. Results compared to a meta-analytic study found their level of dissociation to be higher than participants in non-animalrelated categories.This study suggests that dissociation may characterize one subset of people highly attached to pets and discusses implications for companion animal research and individuals in animal-related careers.
BETWEEN POPULATIONS OF REED WARBLERS IN DEFENCES AGAINST BROOD PARASITISM
Authors: Lindholm Anna , Thomas Robert 
Published: July 2002

AbstractTwo potential defences against brood parasitism by the cuckoo Cuculus canorus were compared experimentally between British populations of reed warblers Acrocephalus scirpaceus that are parasitised at different rates. (1) Rates of rejection of model cuckoo eggs were lower at two unparasitised populations which did not have resident cuckoos, than at a rarely parasitised population which had cuckoos nearby, and at a regularly parasitised population. (2) Reed warblers from an unparasitised population showed a slightly weaker response to taxidermic mounts of cuckoos and, unlike a parasitised population, did not differentiate between mounts of a cuckoo, sparrowhawk Accipiter nisus and jay Garrulus glandarius . Differences in exposure to real predators may explain the differences in responses to mounted predators between populations, as specific aggressive responses to predators are likely to have been learned. Although evidence from dispersal and population turnover data suggests that there is likely to be gene flow between reed warbler populations in Britain, the hypothesis that the population differences reflect genotypic differences could not be ruled out. An alternative explanation of phenotypic plasticity in defences could also explain the population differences. Phenotypic plasticity in defences would be favoured in environments where the risk of parasitism fluctuates, if those defences are costly to unparasitised reed warblers.
THE ROLE OF FAMILIARITY IN THE DEVELOPMENT OF SOCIAL RECOGNITION BY LAMBS
Authors: Porter Richard , Désiré Lara , Bon Richard , Orgeur Pierre 
Published: July 2002

Abstract
A series of experiments investigated the role of association and familiarity in the development of social recognition among lambs. In each experiment, lambs were tested successively with 2 different social partners. When separated from their mothers, lambs that were paired with a partner with which they had been housed for 17 or 5 days emitted fewer distress bleats than they did during tests with an unfamiliar lamb. However, this effect was only evident when the test with the unfamiliar partner preceded the test with the familiar partner. When lambs were first tested with an unfamiliar partner treated with the same artificial odorant that had previously been associated with members of their own group, they bleated more than they did during a second test with a partner whose odor was novel. This effect was not observed when the familiar- and novel-odor partners were encountered in the reverse order. Bleating frequencies by lambs paired with their twin did not differ reliably from those of lambs paired with a familiar non-twin. Nonetheless, there was a signficant correlation between the number of bleats by twins that were tested together. Overall, the results indicate that lambs become familiar with and recognize individuals (twins and non-twins) as a result of direct association. Lambs also discriminate between novel scents and artificial odorants associated with their familiar agemates, but such odors neither mask nor substitute effectively for lambs' individually recognizable phenotypes. Bleating frequency increases with the novelty of the social partner and of the test situation, and is therefore markedly affected by repeated testing.
SPERMATOPHORE SIZE AND MULTIPLE MATING: EFFECTS ON REPRODUCTIVE SUCCESS AND POST-MATING BEHAVIOUR IN THE INDIAN MEAL MOTH
Authors: Ryne Camilla , Zhu Jun-Wei , Van Dongen Stefan , Löfstedt Christer 
Published: July 2002

Abstract
Ensuring fatherhood is an important issue in polygamous species. In many lepidopteran species, the male inserts a large package (spermatophore) consisting of sperm, accessory gland fluids and nutrients into the female's bursa copulatrix during copulation. In most species it has been shown that a large male donation causes females either to stop calling, or to prolong the time until re-mating, hereby ensuring fatherhood. We investigated the changes in size of the donation in multiple mating and how the size affected the female post mating behaviour in the Indian meal moth, Plodia interpunctella. In concordance with other previous studies, we found that a male inserted a significantly larger donation during the first mating compared to following mating occasions. The larger donation was not coupled with larval output since it did not decline during mating occasions. Some males were able to mate at least eight times and male fitness, counted as larval output, showed no association with sequence of mating number. Even though females received larger donations during the first mating, there was no effect on female post mating behaviour in terms of pheromone production and calling behaviour. The weight of the mated female's bursa copulatrix decreased linearly over the first eight days after mating, suggesting that females absorb material other than sperm. We discuss the female advantage of receiving a large donation and why males invest more energy into the first mating while female post-mating behaviour is not affected.
OPTIMAL TERRITORY SIZE IN THE CONVICT CICHLID
Authors: Praw Jason , Grant James W.A. 
Published: July 2002

Abstract
Models of optimal territory size are usually tested only by demonstrating that territory size is inversely related to food abundance or intruder number. The most fundamental predictions of the models, however, have rarely been tested: i.e. the fitness of the defender is a function of territory size and the optimal territory is one of intermediate size. We tested these predictions by measuring the growth rate of large convict cichlids (Archocentrus nigrofasciatus, formerly Cichlasoma nigrofasciatum) while defending food patches against smaller intruders over a 10-day period. Food patches differed in area by more than two orders of magnitude. We manipulated food abundance so that it increased with patch size in a decelerating way. As assumed, the realized benefits of defence (weight of food eaten by the defender) and the costs of defence (chase rate and chase radius) both increased in a decelerating way with increasing patch area. As predicted, the growth rate of the defender first increased and then decreased with increasing patch size. The initial increase in defender growth rate with increasing patch size was related to an increase in food eaten, but the decrease in growth rate for fish defending the largest patches was related to the costs of defence. Fish defending large patches had a low growth efficiency, apparently because of the social stress caused by intruders in their territories. Taken together, these results support the assumptions and predictions of optimal territory size models.
SOCIAL BONDS AND GENETIC TIES: KINSHIP, ASSOCIATION AND AFFILIATION IN A COMMUNITY OF BONOBOS (PAN PANISCUS)
Authors: Hohmann  , Gerloff  , Tautz  , Fruth  
Published: July 2002

Abstract
Studies of captive populations of bonobos suggest that females are more gregarious than males. This seems to contradict assumed sex-differences in kinship deriving from a species-typical dispersal pattern of female exogamy and male philopatry. Here we present data on spatial associations and affiliative relations among members of one wild community (Eyengo) for which genetic relationships were identified by analysing mitochondrial and nuclear DNA. Our data from Lomako confirm the existence of spatial associations among resident females. In addition, they reveal strong social bonds between males and females. While most female-female associations did not last longer than one field season, long-term associations occurred predominantly between mixed-sex dyads and involved both close kin and unrelated individuals. Differences in social grooming appeared to be related to patterns of spatial association rather than to kinship. It is suggested that under natural conditions social organisation of bonobos is characterised by strong inter-sexual bonds. Males may benefit from bonding with females by increased reproductive success via rank acquisition. For females benefits may derive from inclusive fitness and reduced food competition. Preliminary evidence suggests that females also may benefit from protection by resident males against male intruders.
Redescription of Diplogasteroides nasuensis Takaki, 1941 and D. magnus Völk, 1950 (Nematoda: Diplogastrina) associated with Scarabaeidae (Coleoptera)
Authors: Sudhaus Walter , Kiontke Karin , Manegold Albrecht 
Published: July 2002

AbstractA detailed morphological description is presented of Diplogasteroides nasuensis Takaki, 1941 and D. magnus Völk, 1950, using light and scanning electron microscopy. Neoaplectana melolonthae Weiser, 1958 and Diplogasteroides (Rhabdontolaimus) berwigi Rühm, 1959 are synonymised with D. nasuensis. This gonochoristic species is distinguished from the hermaphroditic D. magnus by the dorsal metastomal decoration which consists of bristle-like protrusions instead of a more or less uniform tooth. The spermatocytes in D. nasuensis are twice as big as those in hermaphrodites of D. magnus. Dauer juveniles of D. nasuensis are considerably bigger than those of D. magnus. Dauer juveniles of both species are present on wood cockchafer (Melolontha hippocastani) larvae and adults but, on adult beetles, D. nasuensis dauer juveniles enter the genital pouch, whereas those of D. magnus are found under the hind coxae. In Germany, D. nasuensis is found only on M. hippocastani. D. magnus dauer juveniles are also found on a variety of other Scarabaeidae. Further small differences distinguish the two species. The genus Diplogasteroides is proposed to be taken in a broad sense. Several genera names are synonymised with Diplogasteroides.
Increase in 14C-carbon translocation to the soil microbial biomass when five species of plant-parasitic nematodes infect roots of white clover
Authors: Yeates Gregor W. , Saggar Surinder , Hedley Carolyn B. , Mercer Chris F. 
Published: July 2002

Abstract
Clonal white clover growing in pots was inoculated with Heterodera trifolii,
Meloidogyne hapla, Meloidogyne trifoliophila, Pratylenchus sp., or Xiphinema
diversicaudatum, pulse-labelled with 14C and after 15 days the distribution
of 14C in compartments of the soil: plant: nematode system determined.
Nematode inoculation had no effect on shoot, root and soil microbial
biomasses, but the nematode treatments significantly affected the
distribution of 14C in these compartments. The greatest translocation of 14C
to the soil was in pots with X. diversicaudatum, M. hapla or M.
trifoliophila. The percentage of 14C in the microbial biomass varied
significantly, being highest with X. diversicaudatum and Pratylenchus sp.,
and lowest in control pots. Nematodes of all species from the soil
consistently had lower specific activity than those from roots. It has now
been demonstrated for a range of nematodes and soils that nematode infection
increases translocation of photosynthate to soil microbial biomass. As the
soil microbial biomass plays a critical role in the availability of plant
nutrients it appears that low infections of plant-parasitic nematodes may
lead to greater availability of plant nutrients. Anstieg der Verlagerung von
14C-Kohlenstoff in die mikrobielle Biomasse, wenn funf Arten
pflanzenschadigender Nematoden Wurzeln von Weissklee befallen - In Topfen
gehaltene Weisskleeklone wurden mit Heterodera trifolii, Meloidogyne hapla,
Meloidogyne trifoliophila, Pratylenchus sp. oder Xiphinema diversicaudatum
infiziert. Die Nematoden waren mit 14C markiert, und nach 15 Tagen wurde die
Verteilung des 14C in Abschnitten des Systems Boden: Pflanze: Nematode
bestimmt. Nematodenbefall hatte zwar keine Wirkung auf die Biomassen von
Spross, Wurzel und Mikroben, doch beeinflusste die Behandlung mit Nematoden
signifikant die Verteilung von 14C in diesen Abschnitten. Die grosste
Verlagerung von 14C in den Boden fand in den Topfen mit X. diversicaudatum,
M. hapla oder M. trifoliophila statt. Der Anteil von 14C in der mikrobiellen
Biomasse variierte stark. Er war am hochsten in Topfen mit X.
diversicaudatum und Pratylenchus sp. und am gerigsten in den Kontrolltopfen.
Bei allen Arten hatten die Nematoden aus dem Boden durchweg eine geringere
spezifische Aktivitat als die aus den Wurzeln. Es wurde jetzt fur eine Reihe
von Nematoden und Boden gezeigt, dass Nematodenbefall die Verlagerung von
Photosyntheseprodukten in die mikrobielle Biomasse des Bodens steigert. Da
die mikrobielle Biomasse im Boden eine kritische Rolle bei der Verfugbarkeit
von Pflanzennahrstoffen spielt, scheint es, dass geringer Befall durch
pflanzenschadigende Nematoden zu einer grosseren Verfugbarkeit von
Pflanzennahrstoffen fuhren kann.
Paratylenchinae: postembryonic developmental stages of Paratylenchus straeleni (De Coninck, 1931) and P. steineri Golden, 1961 (Nematoda: Tylenchulidae)
Authors: Brzeski Michal , Hanel Ladislav 
Published: July 2002

AbstractPostembryonic developmental stages of naturally occurring populations of Paratylenchus straeleni and P. steineri were studied. In the former species all juveniles had a well developed stylet and pharynx, while the body of the 4th stage juveniles contained numerous dark granules and this is considered the resting stage. In P. steineri the stylet and pharynx were well developed in the 2nd and 3rd stage juvenile, but the 3rd stage juvenile had numerous granules in the body suggesting it is the resting stage. Fourth stage juveniles had no stylets and the pharynx is much reduced. Because some moulting females have the stylet cone of the juveniles being shed together with the juvenile cuticle, it is concluded that the 4th stage is short-lasting. The length of the body, pharynx, tail and genital primordium as well as the index b increases in successive developmental stages. Indices a, c, c' were almost constant in all juvenile stages. The resting juvenile stage characterises species and it should be included in species descriptions for better characterisation of Paratylenchus species. Paratylenchinae: stades de developpement de Paratylenchus straeleni (De Coninck, 1931) et P. steineri Golden, 1961 (Nematoda: Tylenchulidae) - Ont ete etudies les stades de developpement post-embryonnaire de populations sauvages de Paratylenchus straeleni et de P. steineri. Chez la premiere espece tous les juveniles ont un stylet et un pharynx bien developpes alors que le corps des juveniles de 4eme stade contient de nombreux granules fonces; ce stade a donc ete considere comme le stade de quiescence. Chez P. steineri, le stylet et le pharynx sont bien developpes chez le second et troisieme stades juveniles, mais ce dernier montre de nombreux granules a l'interieur du corps, suggerant qu'il constitue le stade de quiescence. Les juveniles de 4eme stade sont depourvus de stylet et le pharynx est tres reduit. Du fait que chez les femelles en train de muer le cone du stylet des juveniles est rejete avec la cuticule des juveniles, il a ete conclu que le 4eme stade n'a qu'une courte duree de vie. Les longueurs du corps, du pharynx, de la queue et du primordium genital de meme que l'index b augmentent en passant d'un stade a l'autre. Les indices a, c et c' sont generalement constants chez tous les stades juveniles. Le stade quiescent des juveniles est caracteristique de l'espece et devrait etre inclus dans les descriptions d'especes pour une meilleure caracterisation specifique des Paratylenchus.
First report of Bursaphelenchus xylophilus in Portugal and in Europe
Authors: Mota Manuel M. , Braasch Helen , Bravo Maria Antonia , Penas Ana Catarina , Burgermeister Wolfgang , Metge Kai , Sousa Edmundo 
Published: July 2002

AbstractA survey of aphelenchid nematodes (Nematoda: Aphelenchida) associated with maritime pine, Pinus pinaster, was conducted in Portugal in 1996 and 1999. A Bursaphelenchus species has been identified for the first time in the Iberian Peninsula. B. xylophilus is reported for the first time in Europe. It was found in very high numbers - up to 38 000 per 10 g of pine wood - inside a few declining trees infested with curculionid, cerambycid and scolytid beetles. Morphological observations, including shape of spicules, bursa, vulva, female tail end and stylet as well as morphometrics, were in accordance with the species description. Species-specific DNA fragment patterns were obtained using ITS-RFLP analysis, with five different restriction enzymes. The importance and implications of this finding are discussed. Premiere signalisation de Bursaphelenchus xylophilus au Portugal, at en Europe - Une enquete sur les nematodes Aphelenchides (Nematoda: Aphelenchida) associes au pin maritime (Pinus pinaster) a ete realisee au Portugal de 1996 a 1999. Une espece de Bursaphelenchus a ete identifiee pour la premiere fois dans la Peninsule Iberique. B. xylophilus est signale pour la premiere fois en Europe. Il a ete trouve en tres grand nombre - jusqu'a 38 000 individus pour 10 g de bois de pin - dans des arbres deperissants infestes par des Coleopteres Curculionides, Cerambycides et Scolytides. Les observations concernant la morphologie - en particulier la forme des spicules, la bourse, la vulve, l'extremite de la queue de la femelle et le stylet - de meme que les donnees morphometriques correspondent a la description de l'espece. Des sequences de fragments d'ADN specifique de l'espece ont ete obtenus par analyse ITS-RFLP a l'aide de cinq enzymes de restriction. L'importance et les implications de cette decouverte sont discutees.
Kaolinite-to-dickite reaction in sandstone reservoirs
Authors: Beaufort D. , Cassagnabere A. , Petit S. , Lanson B. , Berger G. , Lacharpagne J. C. , Johansen H. 
Published: July 2002

AbstractThe SEM, XRD, FFIR and DTA analyses of different size-fractions of clay material from sandstone reservoirs which have experienced a large range of burial conditions have been used to examine the different steps of the depth-related kaolinite-dickite reaction. Dickite progressively replaced kaolinite within a range of burial depths estimated between about 2500 m and 5000 m. The kaolinite-to-dickite reaction proceeds by gradual structural changes concomitant to crystal coarsening and change from booklet to blocky morphology. The crystallization of dickite proceeds by two distinct paths: (1) Accretion of new material from either dissolution of smaller unstable kaolinite crystals and/or detrital minerals (chiefly feldspars), on early-formed coarser metastable kaolinite crystals which exert extended morphological control on the growing crystals. (2) Neoformation of ordered dickite which will continue to grow by a dissolution-crystallization process. The kaolinite-todickite reaction is kinetically controlled and anomalies in the kaolinite/dickite ratio observed in certain sandstone reservoirs may be used to assess the timing of invasion by hydrocarbons.
Carbonatite lapilli-bearing tuff and a dolomite carbonatite bomb from Murumuli crater, Katwe volcanic field, Uganda
Authors: Stoppa F. , Woolley A. R. , Lloyd F. E. , Eby N. 
Published: July 2002

AbstractA group of carbonate-rich tuffs are described from the Murumuli crater, Katwe-Kikorongo volcanic field, SW Uganda which contain abundant carbonatite pelletal lapilli, together with melilitite lapilli and a range of xenocrysts and lithic fragments including clinopyroxenites considered to be of mantle origin. The carbonatite lapilli consist essentially of Sr-bearing calcite and Mg-calcite which form quench-textured laths. The lapilli contain microphenocrysts of Ti-magnetite, perovskite, apatite, clinopyroxene, sanidine and altered prisms of melilite. A 7 cm long dolomite carbonatite bomb is described which displays a form typically assumed by lava clots erupted in a molten state. Chemical analyses of a tuff, the bomb and a range of minerals are presented. Carbonatite clearly played an important role in the Katwe-Kikorongo magmatism and it is suggested that carbonatite magma evolved from carbonate-bearing melilitite.