bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of hydrology on free‐living and particle‐associated microorganisms in a river floodplain system (Danube, Austria)
Authors: LUEF BIRGIT , ASPETSBERGER FANNI , HEIN THOMAS , HUBER FLORIAN , PEDUZZI PETER 
Published: April 2007

Summary1. A floodplain segment of the Danube River downstream of Vienna was studied during the hydrologically most dynamic phase (spring–summer) to evaluate the significance of connection between the main channel and the floodplain segment for particle abundance and quality as well as for bacterial and viral parameters, both free‐living and attached to particles.2. Hydrological connectivity between the main channel and its floodplain segment (expressed as water age) influenced particle abundance and quality. Polysaccharide‐containing particles [Alcian positive‐stained particles (ASP)] and protein‐containing particles [Coomassie positive‐stained particles (CSP)] each contributed a substantial fraction to total suspended solids and were both positively related to water age. ASP were about twice as abundant as CSP.3. Water age influenced bacterial and viral abundance and the bacterioplankton productivity in the surrounding water. Free‐living bacterial abundance and their bacterial secondary production (BSP) increased continuously with water age, best described by a linear regression. Water age also significantly impacted BSP and per cell BSP of bacteria attached to particles. The abundance of attached bacteria and viruses was not influenced by water age.4. Bacteria and viruses on particles were influenced by particle quality. Their abundance on particles was closely related to particle size. Particle‐attached bacteria accounted on average for 30.34% (± 3.09) of the total bacterial abundance. A variable and occasionally significant proportion of viruses, between 0.43% and 35.06%, were associated with particulate material.5. Bacteria attached to particles were significantly more productive than their free‐living counterparts. Their per‐cell activity was on average 8.6 times higher than that of the free‐living fraction.6. Hydrological connectivity between the Danube River and its floodplain is crucial not only for the exchange of water, sediment and nutrients, but also for microbiota, thus influencing microbial life, distribution and activity.
Ground‐penetrating radar as a tool to detect rock heterogeneities (channels, cemented layers and fractures) in the Luxembourg Sandstone Formation (Grand‐Duchy of Luxembourg)
Authors: VAN DEN BRIL KOEN , GREGOIRE COLETTE , SWENNEN RUDY , LAMBOT SEBASTIEN 
Published: April 2007

AbstractA combined study of radar profiles and thin section analysis supported by modelling of synthetic radar traces reveals that ground‐penetrating radar (GPR) reflections generated in diagenetically altered sandstones cannot always be interpreted unequivocally. This is illustrated in the Luxembourg Sandstone Formation, which has been altered diagenetically by selective carbonate cementation and fracturing. Cemented lenses and concretions developed along the bedding planes, especially at places with high primary carbonate content. Cementation resulted in the alternation of cemented carbonate‐rich sandy layers (thickness 30–50 cm and variable length) and uncemented carbonate‐poor sandstone layers. The ability of GPR to detect the geometry of these lenses and vertical fractures with centimetre apertures has been tested at several antenna frequencies (100, 200, 250 and 500 MHz). Relative dielectric permittivity calculations were carried out to assess variations of this electric property within the cemented and uncemented layers as a function of porosity, calcite and water content in the pores. Two‐dimensional full waveform modelling was also carried out to study the effect of conductivity in the sandstones and the effect of interlayer clay seams. At the penetration depth of the radar (7 m with 250 MHz), cemented lenses and concretions could only be detected with GPR when the porosity contrast was sufficiently high, which is not always the case. This conclusion is supported by the modelling. The data also proved the ability of radar to detect large open vertical fractures along which sandstones are weathered. The study has implications for investigations which will use GPR to detect three‐dimensional distribution of diagenetic pore filling precipitates as well as secondary porosity development along fractures.
Female crickets trade offspring viability for fecundity
Authors: SIMMONS L. W. , GARCÍA‐GONZÁLEZ F. 
Published: April 2007

AbstractA growing number of studies are suggesting that females can improve the viability of their embryos by mating with multiple males. However, the reason why females should have low rates of embryo viability is puzzling. Here we conduct a quantitative genetic study of maternal effects on embryo viability in the field cricket Teleogryllus oceanicus. After controlling for female body size, we find significant additive genetic variance for ovary weight, a measure of fecundity, and egg hatching success, a measure of embryo viability. Moreover, we show a genetic trade‐off between these traits that is predicted from life‐history theory. High rates of embryo mortality in this highly fecund species might therefore be explained by selection favouring an optimum balance between fecundity and embryo viability that maximizes maternal fitness. Paternal effects on female fecundity and embryo viability are often seen as benefits driving the evolution of polyandrous behaviour. However, we raise the alternative possibility that paternal effects might shift females from their naturally selected optimum, and present some support for the notion that sexual conflict over a female's optimal fecundity and embryo viability might generate antagonistic coevolution between the sexes.
The relative role of male vs. female mate choice in maintaining assortative pairing among discrete colour morphs
Authors: PRYKE S. R. , GRIFFITH S. C. 
Published: April 2007

AbstractMate choice has important evolutionary consequences because it influences assortative mating and the level of genetic variation maintained within populations. In species with genetically determined polymorphisms, nonrandom mate choice may affect the evolutionary stability and maintenance (or loss) of alternative phenotypes. We examined the mating pattern in the colour polymorphic Gouldian finch (Erythrura gouldiae), and the role of mate choice, both female and male, in maintaining the three discrete head colours (black, red and yellow). In both large captive and wild populations, Gouldian finches paired assortatively with respect to head colour. In mate choice trials, females showed a strong preference for mates with the most elaborate sexually dimorphic traits (i.e. more chromatic UV/blue plumage and longer pin‐tail feathers), but did not discriminate assortatively. Unexpectedly, however, males were particularly choosy, associating and pairing only with females of their own morph‐type. Although female mate choice is generally invoked as the major selective force maintaining conspicuous male colouration in sexually dichromatic species, and is typically thought to drive nonrandom mating, these findings suggest that mutual mate choice and male mate choice in particular, are an important yet neglected component of selection.
THE ANAL FIELD IN THE WING VENATION OF EMPIDIDAE AND RELATED FAMILIES
Authors: Hardy G. H. 
Published: April 2007

AbstractTraceable lines of vein reduction in the anal field of Empididae are discussed in relation to a hypothetical primitive venation from data gathered from Australian genera. Empid‐Platypezid relationships, Asymphyloptera Collin (Clinocerinae), and the Lonchopteridae are considered also.
LECTOTYPE SELECTION FOR THREE OF ERICHSON'S SPECIES OF AUSTRALIAN LYGAEIDAE (HEMIPTERA: HETEROPTERA)
Authors: Woodward T. E. 
Published: April 2007

AbstractLectotypes of Erichson's Pachymerus lacertosus, P. torquatus, and P. nigroaeneus have been selected and illustrated, and measurements and other taxonomic features given for them and other members of the syntypic series.
THE SYSTEMATIC POSITION OF THE IPSVICIIDAE (UPPER TRIASSIC HEMIPTERA) AND SOME NEW UPPER PERMIAN AND MIDDLE TRIASSIC HEMIPTERA FROM AUSTRALIA (INSECTA)
Authors: Evans J. W. 
Published: April 2007

AbstractThe Ipsviciidae are a family of Hemiptera, which, up to the present, have been recorded only from Upper Triassic strata in Queensland. The venation of their tegmina is anomalous and has proved difficult to interpret. Consequently, their relationships with other groups of Hemiptera have been uncertain. In a recent publication, China has suggested that the Ipsviciidae are related to an extant family of primitive Homoptera, the Peloridiidae (China 1962). This suggestion is examined, but not accepted. Instead, evidence is given to show that, more probably, the Ipsviciidae belonged to the superfamily Cercopoidea. The affinities of the family Stenoviciidae are discussed and some new Hemiptera of unusual interest described from Australian Upper Permian and Middle Triassic strata.
MORPHOLOGY OF THE MALE GENITALIA OF FIVE QUEENSLAND SCUTELLERINAE (HEMIPTERA: PENTATOMIDAE)
Authors: McDonald F. J. D. 
Published: April 2007

AbstractThe male genitalia of Lampromicra femorata (Walker), L. regia (Bergroth), L. aerea (Distant), Calliscyta australis Distant and Calliphara cruenta Stål are described. L. femorata has an identical type of genitalia to that of L. senator (Walker) and is probably a colour variety of the latter. Features are listed common to all species of Lampromicra so far examined. Calliphara cruenta in common with other species referred to this genus belongs to the Sphaerocoraria. A revised key for male Scutellerinae is given.
THE PROBLEMS OF BITING MIDGES (DIPTERA: CERATOPOGONIDAE) IN QUEENSLAND
Authors: REYE ERIC J. 
Published: April 2007

AbstractQueensland's geographical position gives a midge fauna active in all seasons, containing numerous species suspected or known to feed on birds and mammals. Taxonomy is incomplete but allows a start on the problems midges present both as pests of man, retarding settlement and tourist industry, and as vectors of disease, especially their potential as vectors of the blue‐tongue virus in sheep and of African horsesickness. More knowledge of midge taxonomy and biology is needed to solve these problems. Known Queensland species of Culicoides, Lasiohelea, Leptoconops and Styloconops are listed.
A NEW GENUS AND SPECIES OF AUSTRALIAN TACHINIDAE (DIPTERA) PARASITIC ON THE SAWFLY ZENARGE TURNERI ROHWER (HYMENOPTERA: ARGIDAE)
Authors: CROSSKEY R. W. 
Published: April 2007

Abstract Zenargomyia moorei, a new genus and species of Tachinidae, parasitic upon the sawfly Zenarge turneri Rohwer in Australia, is described. The uncertain systematic position of the new genus is discussed and notes are given on the affinities of the Australian tachinid genus Froggattimyia Townsend, to which the new genus is possibly related.
NEW GENERA AND SPECIES OF QUEENSLAND ARADIDAE (HEMIPTERA: HETEROPTERA)
Authors: KORMILEV N. A. 
Published: April 2007

AbstractThe new genera Paracarventus and Aellocoris and the new species P. woodwardi, A. undulatus, A. breviceps, Woodwardiessa australiensis and Drakiessa tertia are described and their affinities discussed. Additional locality records are noted for Euricoris australicus Usinger and Matsuda and Drakiessa hackeri (Drake).
SOME LEAF‐MINING AGROMYZIDAE (DIPTERA) FROM QUEENSLAND
Authors: Kleinschmidt R. P. 
Published: April 2007

AbstractSome aspects of the occurrence, biology and host relationships of fifteen native and introduced species of Agromyza, Ophiomyia, Melanagromyza, Phytobia, Cerodontha, Liriomyza, Haplomyza, Pseudonapomyza and Phytomyza are discussed.
A REVISION OF THE GENUS ELEPHASTOMUS MACLEAY (COLEOPTERA: GEOTRUPIDAE)
Authors: Carne P. B. 
Published: April 2007

AbstractThe genus Elephastomus Macleay is revised, and the biology and distribution of its species discussed briefly. E. kirbyi Westw. is regarded as a subspecies of E. proboscideus (Schreib.) but, as Westwood's name is preoccupied, is given the new name E. proboscideus kirbyanus. Two new species are described: E. gellarus from northern New South Wales and Queensland, and E. meraldus from New South Wales and Victoria; the former species is commonly misidentified as E. kirbyi Westw. The validity of E. terraereginae (Blackb.) is confirmed. Plesioallotypes of E. p. kirbyanus and E. terraereginae are designated.
THE IDENTITY AND DISTRIBUTION OF SPECIES OF PSEUDALETIA (LEPIDOPTERA: NOCTUIDAE) IN AUSTRALIA
Authors: Common I. F. B. 
Published: April 2007

AbstractThe distribution in Australia of the two armyworms Pseudaletia convecta (Walk.), of which P. australis Franclemont is shown to be a synonym, and P. separata (Walk.) has been determined. The genitalia of both sexes are figured and the characters used for distinguishing the two species are discussed.
ON THE IDENTITY OF LYGAEUS MUTILATUS ERICHSON (HEMIPTERA: LYGAEIDAE)
Authors: Gross G. F. 
Published: April 2007

Abstract Brachylygaeus gen. n. is described and the type species Lygaeus mutilatus Erichson redescribed. The species is shown to be pterygo‐dimorphic and its known distribution is extended from Tasmania to alpine regions in New South Wales and A.C.T.
STUDIES ON FEMALE GENITALIA OF QUEENSLAND PHASMIDA
Authors: Heather N. W. 
Published: April 2007

AbstractThe female genitalia of eight Queensland species of Phasmidae (Phasmida) from three subfamilies are described. Species dealt with are Didymuria violescens (Leach), Podacanthus viridiroseus Gray, Extatosoma tiaratum Macleay, Tropidoderus decipiens Rainbow, Ctenomorphodes tessulatus (Gray), Acrophylla titan (Macleay), Eurycnema goliath Gray and Pachymorpha squalida (Gray).
A LARVAL HABITAT OF THE BITING MIDGE CULICOIDES BREVITARSIS KIEFFER (DIPTERA: CERATOPOGONIDAE)
Authors: Cannon L. R. G. , Reye Eric J. 
Published: April 2007

AbstractThe finding of immature stages of Culicoides brevitarsis Kieffer in cow dung in south‐east Queensland is described. The implications of such a habitat are that this may be a cosmopolitan species, hence that its status and relationships need clarification; that its potential as a vector of disease is increased thereby; and that it poses control problems in range management but should facilitate laboratory investigation of the species.
THE ALLEGED OBLIGATE ECTOPARASITISM OF MYOTYPHLUS JANSONI (MATTHEWS) (COLEOPTERA: STAPHYLINIDAE)
Authors: Hamilton‐Smith E. , Adams D. J. H. 
Published: April 2007

Abstract Myotyphlus jansoni (Matthews), previously considered an obligate ectoparasite of Rattus spp., is reported from bat guano in caves at Warrnambool, Victoria and Jenolan, New South Wales. This finding suggests that the genus Myotyphlus (Fauvel), assigned by Seevers to the tribe Amblyopinini, may need to be replaced in the Quediini.
A NEW GENUS OF CHINAMYERSIINAE (HETEROPTERA: ARADIDAE) FROM AUSTRALIA, WITH NOTES ON ITS RELATIONSHIPS AND MALE GENITALIA
Authors: Monteith G. B. 
Published: April 2007

Abstract Kumaressa scutellata gen. et sp. n. is described and figured, this being the first record of the Chinamyersiinae from Australia. The affinities of Kumaressa with other genera in the subfamily are discussed and comments are made on the homologies of processes of the pygophore wall in Aradidae.
THE INFLUENCE OF FOOD ON LONGEVITY AND OVIPOSITION IN RHYSSA PERSUASORIA (L.) (HYMENOPTERA: ICHNEUMONIDAE)
Authors: Hocking Helen 
Published: April 2007

ABSTRACTA study was made of the effect of carbohydrate food on the longevity and oviposition of Rhyssa persuasoria (L.). The adult life span was 9 days without food and approximately 45–55 days on a carbohydrate diet. When females were starved, searching and egg‐laying activity were reduced. Aphid honeydew was found to be as effective as honey solution in promoting longevity and oviposition. Some aspects of the availability of honeydew in Australian pine plantations and its importance in the establishment of rhyssines are discussed.
EVALUATING NEW PROSPECTS IN PEST CONTROL
Authors: Geier P. W. , Hillman T. J. , Wilson A. G. L. 
Published: April 2007

ABSTRACTAdvances in biology are contributing increasingly to the progress of insect pest control. The trend is characterized, in particular, by the systematic quest for procedures which involve smaller inputs of chemical and physical energy by man to achieve stated objectives in practical control. The recognition, selection, and exploitation of biological circumstances susceptible of procuring means to influence optimally the demography of noxious organisms calls for an ecologically‐based approach to pest problems, of the kind outlined and discussed here. Simple models are derived to illustrate the method in concept and application.
AUTOGENY IN CULICOIDES WARINGI LEE AND REYE AND CULICOIDES MACKERRASI LEE AND REYE (DIPTERA: CERATOPOGONIDAE) FROM AUSTRALIA WITH NOTES ON BREEDING PLACES AND BEHAVIOUR
Authors: Dyce A. L. , Murray M. D. 
Published: April 2007

ABSTRACT Culicoides waringi is autogenous for the first batch of eggs and it is probable that the species has completely lost the necessity to feed on blood. Larvae were hatched from eggs deposited by laboratory reared females caged with males and with access only to carbohydrate foods. C. mackerrasi is known to attack man and the development of follicles to Stage V by unfed, unmated females shows the species can be autogenous for the first egg mass.Notes on the field biology, the behaviour and the distribution of both species are included. The advantages of autogeny for survival of the two species are discussed.
REASSESSMENT OF THE AFFINITIES OF THE GRASSHOPPER TRIGONIZA SULCATA TEPPER, FROM AN EXAMINATION OF THE HOLOTYPE (ORTHOPTERA: ACRIDOIDEA)
Authors: Key K. H. L. 
Published: April 2007

ABSTRACTExamination of the holotype shows that the grasshopper Trigoniza sulcata Tepper is not a member of the pyrgomorphid genus Monistria Stål, but belongs with a group of genera including Raniliella Sjöst. and Phanerocerus Sauss. currently referred to the acridid subfamily Catantopinae. However, the generic name Trigoniza, as a result of designation of T. maculata Tepper as its type species, is confirmed as a junior synonym of Monistria.
THE STATUS OF INSECTICIDE RESISTANCE IN POPULATIONS OF CULEX PIPIENS FATIGANS WIEDEMANN (DIPTERA: CULICIDAE) FROM QUEENSLAND
Authors: Hooper G. H. S. 
Published: April 2007

ABSTRACTThe susceptibility of five strains of Culex pipiens fatigans from Queensland was investigated and evidence of resistance to DDT, dieldrin and lindane was obtained. All strains were susceptible to organophosphorus insecticides. Toxicological data for the WHO Standardized Inbred Strain is presented.
A POSSIBLE ROLE FOR ALIESTERASE ENZYMES IN INSECTS
Authors: Wan T. K. , Hooper G. H. S. 
Published: April 2007

AbstractThe level of aliesterase enzymes in Musca domestica L. was found to be higher in females than males, higher in mated flies of both sexes than in unmated flies and to show a cyclic activity with age in mated flies. Tri‐o‐cresyl phosphate inhibited the aliesterase by approximately 68 per cent. for eight days at a dosage of 90 μg/fly. Increasing dosages of this phosphate did not further inhibit the enzyme nor further reduce the batch of eggs (approximately 40 per cent. reduction) but did progressively increase the pre‐ovipositional period. A possible role for aliesterase enzyme in oögenesis is discussed.
HYDROGEN CYANIDE IN THE DEFENSIVE SECRETIONS OF LARVAL PAROPSINI (COLEOPTERA: CHRYSOMELIDAE)
Authors: Moore B. P. 
Published: April 2007

AbstractHydrogen cyanide, benzaldehyde and glucose have been identified as components of the larval defensive secretion in three species of leaf beetles, belonging to the genera Paropsis and Chrysophtharta. These substances, which at some stage may have been combined in the form of a glycoside, are apparently synthesized by the insects, rather than derived directly from the food plant.
ON THE RELATIONSHIPS OF THE CALOPSOCIDAE (PSOCOPTERA)
Authors: Smithers C. N. 
Published: April 2007

AbstractThis paper describes Calopsocus guttatus sp. n. from Queensland and discusses the systematic position of the family, the conclusion being that the Calopsocidae are closely related to the Pseudocaeciliidae and not to the Caeciliidae as indicated in the currently accepted classification. The genus Calopsocus Hagen has been known from three species; the fourth, C. guttatus, is the first from Australia.
THE TYPE MATERIAL OF AIOLOPUS TAMULUS (F.) (ORTHOPTERA: ACRIDIDAE)
Authors: Key K. H. L. 
Published: April 2007

AbstractA lectotype is designated for the grasshopper Gryllus tamulus F., currently referred to the genus Aiolopus. Although this species has long been held to occur in Australia, all Australian specimens differ from the lectotype (from eastern India) in certain features whose significance has yet to be assessed.
NOTES ON THE BIOLOGY OF SOME AUSTRALIAN STICK INSECTS (PHASMATODEA)
Authors: Bedford G. O. 
Published: April 2007

iSpecimens of the Phasmatodea, Eurycnema goliath (Gray), Podacanthus typhon Gray and Tropidoderus childrenii (Gray), were reared in the insectary and observations on longevity and fecundity were made. Facultative thelytokous parthenogenesis may exist in the last two species.
7. RECORDS OF THE GENUS EOTETRANYCHUS (ACARINA: TETRANYCHIDAE)
Authors: Davis J. J. 
Published: April 2007

AbstractA key is given to the five species of Eotetranychus from Queensland, E. hudsoni Miller, E. lomandrae Davis, E. pronus Davis, E. pseudomori Davis, and E. queenslandicus Manson. Locality records and host plants of these species are listed.
A NEW MALAYAN SPECIES OF THE ANT GENUS EPITRITUS. AND A RELATED NEW GENUS FROM SINGAPORE (HYMENOPTERA: FORMICIDAE)
Authors: Taylor R. W. 
Published: April 2007

Abstract Epitritus murphyi sp. n. (Rantau Panjang, West Malaysia) and Dysedrognathus extemenus gen. et sp. n. (Bukit Timah, Singapore) are described and figured. Their relationships within the myrmicine ant tribe Dacetini are discussed.
OBSERVATIONS ON THE NESTS AND BEHAVIOUR OF SOME EURYGLOSSINE BEES (HYMENOPTERA: COLLETIDAE)
Authors: Houston Terry F. 
Published: April 2007

AbstractNests of Euryglossa (Euryglossa) sp., Euryglossula chalcosoma (Cockerell), Brachyhesma perlutea (Cockerell), Xanthesma sp., Xanthesma furcifera (Cockerell), Euryglossina (Eury‐glossina) hypochroma Cockerell, Euryglossina (Turnerella) pulchra Exley, Pachyprosopis haematostoma Cockerell and Pachyprosopis indicans Cockerell are described for the first time. Euryglossina (Turnerella) pulchra appears to be parasitised by a species of Gasteruption (Hymenoptera: Gasteruptiidae) and Euryglossula chalcosoma and Xanthesma furcifera by species of Hyptiogaster (Hymenoptera: Gasteruptiidae).Males of Euryglossa (Euhesma) sp. and Euryglossa (Callohesma) sp. were found sleeping on low vegetation. Males of Euryglossina (Euryglossina) hypochroma spent nights and cool periods within the nests.
A REMARKABLE CASE OF ALARY DIMORPHISM IN THE ARADIDAE (HEMIPTERA) WITH A GENERIC SYNONYMY AND A NEW SPECIES
Authors: Monteith G. B. 
Published: April 2007

AbstractThe genus Zeugocoris Usinger & Matsuda is sunk as a junior synonym of Caecicoris Kormilev since the respective type species, Z. microcerus (Walker) and C. oviventris Kormilev, are found to be dimorphic forms of the one species. The morphological changes associated with wing reduction in the micropterous morph are described and the taxonomic and biological implications of this dimorphism are discussed. Additional distributional and biological data for C. microcerus are presented and C. latus sp. n. is described from New Britain.
THE IDENTITY OF DORYLOZELUS MJOBERGI FOREL (HYMENOPTERA: FORMICIDAE)
Authors: Taylor Robert W. 
Published: April 2007

Abstract Dorylozelus Forel, 1915, is synonymized under Leptogenys Roger, 1861. Dorylozelus mjobergi, the type and only known species, is renamed Leptogenys tricosa, due to the secondary homonymy of mjobergi by assignment to Leptogenys. The unique holotype is described and illustrated.