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This page shows you the most recent publications within this specialty of the MedWorm directory. This is page number 25.

Perception of size-related formant information in male koalas (Phascolarctos cinereus).
Abstract Advances in bioacoustics allow us to study the perceptual and functional relevance of individual acoustic parameters. Here, we use re-synthesised male koala bellows and a habituation-dishabituation paradigm to test the hypothesis that male koalas are sensitive to shifts in formant frequencies corresponding to the natural variation in body size between a large and small adult male. We found that males habituated to bellows, in which the formants had been shifted to simulate a large or small male displayed a significant increase in behavioural response (dishabituation) when they were presented with bellows s...
Source: Animal Cognition - June 28, 2012 Category: Zoology Authors: Charlton BD, Ellis WA, Larkin R, Tecumseh Fitch W Tags: Anim Cogn Source Type: research

Motile sperm subpopulations in frozen-thawed dog semen: Changes after incubation in capacitating conditions and relationship with sperm survival after osmotic stress.
In this study we investigated the changes that in vitro incubation under capacitating conditions could induce on the motile sperm subpopulations present in frozen-thawed dog semen samples. In addition, cryopreserved dog spermatozoa were exposed to CCM (canine capacitating medium) solutions of 300, 150, 100 and 75mOsm and the proportions of live spermatozoa with swollen tails were recorded (HOST+). Finally, frozen-thawed dog semen samples were submitted to a second cycle of freezing and thawing and the overall sperm motility, as well as the motile sperm subpopulations structure, was determined. Cryopreserved dog semen sampl...
Source: Animal Reproduction Science - June 27, 2012 Category: Zoology Authors: Peña AI, Barrio M, Becerra JJ, Quintela LA, Herradón PG Tags: Anim Reprod Sci Source Type: research

Iodixanol density gradient centrifugation for selecting stallion sperm for cold storage and cryopreservation.
In conclusion, the two-layer iodixanol density gradient centrifugation protocol described in this manuscript allows for selection of stallion sperm with greater survival rates for cold storage and cryopreservation. PMID: 22784972 [PubMed - as supplied by publisher]
Source: Animal Reproduction Science - June 27, 2012 Category: Zoology Authors: Stuhtmann G, Oldenhof H, Peters P, Klewitz J, Martinsson G, Sieme H Tags: Anim Reprod Sci Source Type: research

Invasive Ants Alter Foraging and Parental Behaviors of a Native Bird
AbstractIntroduced species can exert outsized impacts on native biota through both direct (predation) and indirect (competition) effects. Ants frequently become established in new areas after being transported by humans across traditional biological or geographical barriers, and a prime example of such establishment is the red imported fire ant (Solenopsis invicta). Introduced to North America in the 1930s, red imported fire ants are now firmly established throughout the southeastern United States. Although these invasive predators can dramatically impact native arthropods, their effect on vertebrates through resource comp...
Source: Ethology - June 27, 2012 Category: Zoology Authors: Russell A. Ligon, Lynn Siefferman, Geoffrey E. Hill Tags: Research Paper Source Type: research

Bone morphogenetic protein 4 (BMP‐4) and BMP‐7 induce vascular endothelial growth factor expression in bovine granulosa cells
In conclusion, theca cell‐derived BMP‐4 and BMP‐7 might contribute to follicular vasculature and development by inducing VEGF expression in granulosa cells.
Source: Animal Science Journal - June 27, 2012 Category: Zoology Authors: Takashi SHIMIZU, Fumie MAGATA, Yasuyuki ABE, Akio MIYAMOTO Source Type: research

Interaction between lactic acid bacteria and yeasts in airag, an alcoholic fermented milk
ABSTRACTThe interaction between nine lactic acid bacteria (LAB) and five yeast strains isolated from airag of Inner Mongolia Autonomic Region, China was investigated. Three representative LAB and two yeasts showed symbioses were selected and incubated in 10% (w/v) reconstituted skim milk as single and mixed cultures to measure viable count, titratable acidity, ethanol and sugar content every 24 h for 1 week. LAB and yeasts showed high viable counts in the mixed cultures compared to the single cultures. Titratable acidity of the mixed cultures was obviously enhanced compared with that of the single cultures, except for ...
Source: Animal Science Journal - June 27, 2012 Category: Zoology Authors: SUDUN, WULIJIDELIGEN, Kensuke ARAKAWA, Mari MIYAMOTO, Taku MIYAMOTO Source Type: research

Application of highly differentiated SNPs between Japanese Black and Holstein to a breed assignment test between Japanese Black and F1 (Japanese Black x Holstein) and Holstein
ABSTRACTTwo taurine breeds, Japanese Black and Holstein, established from geographically distant origins and selected for different uses, beef and dairy, were extensively genotyped using a genome‐wide single nucleotide polymorphism (SNP) chip with more than 1000 animals of each breed. The genetic structure was examined by principal component analysis, in which the first principal component clearly separated the two breeds and explained more than 15% of the variance. Highly differentiated SNPs were detected throughout the genome, some of which were clustered within small regions on BTA4 (79.2–79.7 Mb, Btau4.0) and BTA26...
Source: Animal Science Journal - June 27, 2012 Category: Zoology Authors: Shota NISHIMURA, Toshio WATANABE, Atsushi OGINO, Kazuhiro SHIMIZU, Mitsuo MORITA, Yoshikazu SUGIMOTO, Akiko TAKASUGA Source Type: research

Effects of AI protocol and time interval from onset of estrus to AI on conception rate in Japanese Black cows
ABSTRACTTwo different artificial insemination (AI) protocols were investigated to determine the effect of the time interval from the onset of estrus (as detected by a pedometer) to the AI on the conception rate in Japanese Black cows. Seventy‐three cows were divided into two groups that received AI either after the induction of synchronized ovulation (synchronized AI group; n = 26) or at the time of observed estrus (control AI group; n = 47). Each group was further divided into two subgroups, which were artificially inseminated either 0–12 h (early AI group; n = 21) or 12–24 h (late AI group; n = ...
Source: Animal Science Journal - June 27, 2012 Category: Zoology Authors: Koichiro HEMMI, Ikuo KOBAYASHI, Makoto KAJISA, Go KITAHARA, Kiichi FUKUYAMA, Hiroshi HARADA, Shunichi KAMIMURA Source Type: research

Co-expressed peJK genes of lobster (Jasus edwardsii)
Ermin Schadich, Drusilla Mason, Frank Sin
Source: Australian Journal of Zoology - June 27, 2012 Category: Zoology Authors: Ermin SchadichDrusilla MasonFrank Sin Source Type: research

Influence of habitat on home-range size in the short-beaked echidna
Jenny Sprent, Stewart C. Nicol
Source: Australian Journal of Zoology - June 27, 2012 Category: Zoology Authors: Jenny SprentStewart C. Nicol Source Type: research

Eye preferences in captive chimpanzees.
This study examined eye preference in 45 captive chimpanzees (Pan troglodytes) in response to various stimuli. Eye preference was assessed when animals looked through a hole that only accommodated one eye at an empty box, a mirror, a picture of a dog, a rubber snake, food biscuits, bananas, a rubber duck, and a video camera. Main effects of stimulus type were found for direction of eye preference, number of looks, and looking duration, but not for strength of eye preference. A left-eye bias was found for viewing the rubber snake and a right-eye bias was found for viewing the bananas, supporting theories that emotional vale...
Source: Animal Cognition - June 26, 2012 Category: Zoology Authors: Braccini SN, Lambeth SP, Schapiro SJ, Fitch WT Tags: Anim Cogn Source Type: research

Spatial Group Structure as Potential Mechanism to Maintain Cooperation in Fish Shoals of Unrelated Individuals
In conclusion, spatial structure may contribute to the maintenance of punishment in blenny–anthias interactions even when groups are large.
Source: Ethology - June 26, 2012 Category: Zoology Authors: Gabriel Cisarovsky, Andrea Bshary, Mahmoud Bouzelboudjen, Redouan Bshary Tags: Research Paper Source Type: research

For Love or Money? The Influence of Personal Resources and Environmental Resource Pressures on Human Mate Preferences
In this study, we present data from a large (N = 2944) nationally representative (United States) sample of Internet dating profiles. The profiles allowed daters’ to report their own income and the minimum income they desired in a dating partner, and we analyzed these data at the level of zip code. Our analysis shows that women engage in more resource seeking than men. We also find a positive relationship between cost of living in the dater's zip code and resource seeking among both men and women. Importantly, however, this relationship disappears if one's own income is accounted for in the analysis; that is, individual...
Source: Ethology - June 26, 2012 Category: Zoology Authors: Rindy C. Anderson, Casey A. Klofstad Tags: Research Paper Source Type: research

Altered Prey Responses in Round Goby from Contaminated Sites
AbstractAlthough prey must move to forage, escape predation or gain information about predation risk, movement itself enhances the risk of predation by increasing visibility of prey and encounter rates with predators. Animals subjected to stressors often show altered behaviour; a widely cited effect of contaminant exposure is an increase in vulnerability to predation, which may be mediated by an increase in risky behaviour. Round goby are invasive fish that typically rely on crypsis and sheltering (low‐activity behaviours) to avoid predators. We collected round goby from contaminated sites and tested whether they showed ...
Source: Ethology - June 25, 2012 Category: Zoology Authors: Julie R. Marentette, Sigal Balshine Tags: Research Paper Source Type: research

Female attractiveness affects paternal investment: experimental evidence for male differential allocation in blue tits
Conclusions: To our knowledge, this is one of the first studies providing support for male differential allocation in response to female ornamentation.
Source: Frontiers in Zoology - June 25, 2012 Category: Zoology Authors: Katharina MahrMatteo GriggioMichela GranatieroHerbert Hoi Source Type: research

Development of a quantitative real‐time PCR for the detection of Tenacibaculum maritimum and its application to field samples
AbstractThe development and the application of a quantitative real‐time PCR for the detection of Tenacibaculum maritimum are described. A set of primers and probe was designed to amplify a 155‐bp fragment specific to the T. maritimum 16S rRNA gene. The test was shown to be very sensitive, able to detect as little as 4.8 DNA copies number μL−1. In addition, the assay was found to have a high degree of repeatability and reproducibility, with a linear dynamic range (R2 = 0.999) extending over 6 log10 dilutions and a high efficiency (100%). The assay was applied to DNA samples extracted from 48 formalin‐fixed par...
Source: Journal of Fish Diseases - June 22, 2012 Category: Zoology Authors: E Fringuelli, P D Savage, A Gordon, E J Baxter, H D Rodger, D A Graham Source Type: research

Factors Affecting Interspecific Aggression in a Year‐Round Territorial Species, the Jewel Damselfish
In this study, we recorded territorial aggression in free‐living individuals and recorded aggressive responses to a standardized territorial intrusion test in captive individuals. Field observations indicated that territorial aggression was selectively targeted towards food competitors. Independent of the size of the species, aggression was more frequent towards common species around their territories. This relationship was confirmed experimentally by confronting the jewel damselfish with novel objects to which the subjects were exposed either frequently or rarely. We suggest that jewel damselfish have to learn which spe...
Source: Ethology - June 21, 2012 Category: Zoology Authors: Valentina Di Paola, Philippe Vullioud, Lanilà Demarta, Magdy A. Alwany, Albert F. H. Ros Tags: Research Paper Source Type: research

Diversity of nematomorph and cohabiting nematode parasites in riparian ecosystems around the Kii Peninsula, Japan
Canadian Journal of Zoology, Volume 0, Issue 0, Page 829-838, e-First articles.
Source: Canadian Journal of Zoology - June 21, 2012 Category: Zoology Tags: article Source Type: research

Hand preference and its flexibility according to the position of the object: a study in cercopithecines examining spontaneous behaviour and an experimental task (the Bishop QHP task).
Abstract The extant literature on manual laterality in non-human primates is inconclusive, plagued by inconsistent or contradictory findings and by disturbing methodological issues (e.g. uncontrolled influential factors, comparability issues). The present study examined hand preference and its flexibility in 15 red-capped mangabeys (C. t. torquatus) and 13 Campbell's monkeys (C. c. campbelli), two species that differ in their degree of arboreality. We investigated the influence of the spatial position of the object on hand preference for reaching. We considered spontaneous behaviour (reaching for food during daily ...
Source: Animal Cognition - June 21, 2012 Category: Zoology Authors: Chapelain A, Laurence A, Vimond M, Maille A, Meunier H, Fagard J, Vauclair J, Blois-Heulin C Tags: Anim Cogn Source Type: research

Different approaches to expressing Edwardsiella tarda antigen GAPDH in attenuated Vibrio anguillarum for multivalent fish vaccines
AbstractWith the development of gene technology, expressing heterologous antigens in attenuated bacteria has become an important strategy to design multivalent vaccines. In our previous work, an attenuated Vibrio anguillarum named MVAV6203 was developed and proven to be an efficient live vaccine candidate. In this research, we aimed to express protective antigen glyceraldehyde‐3‐phosphate dehydrogenase (GAPDH) of Edwardsiella tarda in attenuated Vibrio anguillarum to establish a multivalent V. anguillarum vector vaccine. Several strategies were compared between low‐ vs. high‐copy plasmid‐mediated antigen express...
Source: Journal of Fish Diseases - June 21, 2012 Category: Zoology Authors: Y Zheng, Y Xiao, H Wu, Q Wang, J Xiao, Y Zhang, Q Liu Source Type: research

Enhancement of Hsp70 synthesis protects common carp, Cyprinus carpio L., against lethal ammonia toxicity
AbstractExposure to TEX‐OE®, a patented extract of the prickly pear cactus (Opuntia ficus indica) containing chaperone‐stimulating factor, was shown to protect common carp, Cyprinus carpio L., fingerlings against acute ammonia stress. Survival was enhanced twofold from 50% to 95% after exposure to 5.92 mg L−1 NH3, a level determined in the ammonia challenge bioassay as the 1‐h LD50 concentration for this species. Survival of TEX‐OE®‐pre‐exposed fish was enhanced by 20% over non‐exposed controls during lethal ammonia challenge (14.21 mg L−1 NH3). Increase in the levels of gill and muscle Hsp70 ...
Source: Journal of Fish Diseases - June 21, 2012 Category: Zoology Authors: Y Y Sung, R J Roberts, P Bossier Source Type: research

Interactions Among Female Guppies (Poecilia reticulata) Affect Growth and Reproduction
In this study, we investigated the consequences of female–female competition in guppies by manipulating the competitive environment of females. We found that large guppy females dominated smaller females and that interactions between females likely are costly because females exposed to competition grew less. These females compensated by growing at a higher rate when no longer subjected to competition. The higher growth rate might in turn be the cause of the reduced reproductive effort in the more competitive treatments. Furthermore, interactions were more costly for females when they were in the subordinate role than in ...
Source: Ethology - June 21, 2012 Category: Zoology Authors: Åsa A. Borg, Tommy Åsmul, Geir H. Bolstad, Åslaug Viken, Anders Berglund, Gunilla Rosenqvist Tags: Research Paper Source Type: research

Effects on mortality and stress response in European sea bass, Dicentrarchus labrax (L.), fed mannan oligosaccharides (MOS) after Vibrio anguillarum exposure
AbstractThe effects of dietary mannan oligosaccharides (MOS; 4 g kg−1; Bio‐Mos, Alltech Inc, USA) in diets for European sea bass, Dicentrarchus labrax (L.), juveniles in relation to disease and stress resistance, combining intestinal infection with Vibrio anguillarum and stress challenge by confinement, were assessed in this study. After 8 weeks of MOS supplementation, fish were exposed to a pathogen challenge test against V. anguillarum by direct gut inoculation combined with a confinement stressor panel. Cumulative mortality of fish fed MOS caused by anally inoculated V. anguillarum decreased from 66% to 12.5...
Source: Journal of Fish Diseases - June 20, 2012 Category: Zoology Authors: S Torrecillas, A Makol, M J Caballero, D Montero, A K S Dhanasiri, J Sweetman, M Izquierdo Source Type: research

Vigilance Decreases with Time at Loafing Sites in Gulls (Larus spp.)
AbstractUnderstanding how animals partition effort between vigilance for predators and other conflicting activities has been a mainstay of animal behaviour research. Classical theories implicitly assume that animals alternate between high and low vigilance states over short timescales, but that average effort invested in vigilance is constant over an extended bout of such alternations. However, one recent model suggests that vigilance should be adjusted dynamically to short‐term changes in the perception of predation risk and would tend to decrease with time. Indeed, as time passes by without disturbances, perception of ...
Source: Ethology - June 20, 2012 Category: Zoology Authors: Guy Beauchamp, Graeme D. Ruxton Tags: Research Paper Source Type: research

Animal Eyes 2nd edn. Land, M. F. and Nilsson, D.‐E. (2012). Oxford University Press, Oxford, 271 pp, Hardback GBP 65.00, Paperback GBP 32,50. ISBN 978‐0‐19‐958114‐6.
Source: Acta Zoologica - June 20, 2012 Category: Zoology Authors: Roland R Melzer Tags: Book Review Source Type: research

Nutritional stress and body condition in the Great Gray Owl (Strix nebulosa) during winter irruptive migrations
Canadian Journal of Zoology, Volume 0, Issue 0, Page 787-797, e-First articles.
Source: Canadian Journal of Zoology - June 20, 2012 Category: Zoology Tags: article Source Type: research

Local- versus landscape-scale effects on the demography of three forest-breeding songbirds in Ontario, Canada
Canadian Journal of Zoology, Volume 0, Issue 0, Page 815-828, e-First articles.
Source: Canadian Journal of Zoology - June 19, 2012 Category: Zoology Tags: article Source Type: research

Ribeiroia ondatrae causes limb abnormalities in a Canadian amphibian community
Canadian Journal of Zoology, Volume 0, Issue 0, Page 808-814, e-First articles.
Source: Canadian Journal of Zoology - June 19, 2012 Category: Zoology Tags: article Source Type: research

Canopy and edge activity of bats in a quaking aspen (Populus tremuloides) forest
Canadian Journal of Zoology, Volume 0, Issue 0, Page 798-807, e-First articles.
Source: Canadian Journal of Zoology - June 19, 2012 Category: Zoology Tags: article Source Type: research

Chronological vs. Physiological Age as Determinants of Mating Decisions: Studies on Female Choice Over Lifespan in An Acoustic Moth
AbstractLife history theory predicts that females may adjust the selectivity expressed in mate choice as they age. Particularly in cases where time is limiting, females are expected to reduce selectivity and thereby avoid losing a terminal mating opportunity. Some evidence for this reduction has been found in vertebrates and long‐lived insects, and several recent findings show that it may also exist in insects with very short adult longevities. Theory also predicts that behavioural adjustments should respond to remaining longevity (physiological age) rather than chronological age, but very little information relevant to ...
Source: Ethology - June 19, 2012 Category: Zoology Authors: Séverine Ligout, Damien Munier, Lucie Marquereau, Michael D. Greenfield Tags: Research Paper Source Type: research

Nest Attendance does not Predict Offspring Desertion by Eurasian Penduline Tit Parents
AbstractParental care is costly, and in many organisms, the male or the female parent benefits from reducing its own care which may be compensated for by its mate. One of the parents may even face all costs of parental care if its mate deserts and leaves him/her to care for the offspring alone. Theoretical models have generated contrasting predictions as to how parents negotiate a resolution of this sexual conflict over care, although empirical tests are largely lacking. We investigated pre‐desertion behaviour (nest attendance) of a highly polygamous passerine, the Eurasian penduline tit (Remiz pendulinus) that exhibits ...
Source: Ethology - June 19, 2012 Category: Zoology Authors: René E. Dijk, Jan Komdeur, Tamás Székely Tags: Research Paper Source Type: research

Potential role for PADI-mediated histone citrullination in preimplantation development
Conclusions: Given the observed effects of Cl-amidine on embryonic development and the well documented correlation between histone acetylation and transcriptional activation, our findings suggest that histone citrullination may play an important role in facilitating gene expression in early embryos by creating a chromatin environment that is permissive for histone acetylation.
Source: BMC Developmental Biology - Latest articles - June 19, 2012 Category: Zoology Authors: Rui KanMei JinVenkataraman SubramanianCorey CauseyPaul ThompsonScott Coonrod Source Type: research

Diversity of MHC class II DAB 1 in the koala (Phascolarctos cinereus)
Sarah E. Jobbins, Claire E. Sanderson, Joanna E. Griffith, Mark B. Krockenberger, Katherine Belov, Damien P. Higgins
Source: Australian Journal of Zoology - June 18, 2012 Category: Zoology Authors: Sarah E. JobbinsClaire E. SandersonJoanna E. GriffithMark B. KrockenbergerKatherine BelovDamien P. Higgins Source Type: research

Peptidomics-Based Phylogeny and Biogeography of Mantophasmatodea (Hexapoda)
The insect order Mantophasmatodea was described in 2002. Prior to that time, several generations of entomologists had assumed that all major insect taxa were known; thus, its description was a sensation for zoologists. Since then, a surprising abundance and species diversity of this taxon have been found, particularly in the winter rainfall region of South Africa. To learn more about the evolutionary lineages, speciation, and biogeography of Mantophasmatodea, we applied an unusual peptidomics approach. We collected specimens of almost all known and novel taxa of these insects, developed methods for immediate sample prepara...
Source: Systematic Biology - June 16, 2012 Category: Biology Authors: Predel, R., Neupert, S., Huetteroth, W., Kahnt, J., Waidelich, D., Roth, S. Tags: Regular Articles Source Type: research

Acceleration Performance of Individual European Sea Bass Dicentrarchus labrax Measured with a Sprint Performance Chamber: Comparison with High-Speed Cinematography and Correlates with Ecological Performance*
Physiological and Biochemical Zoology, Volume 0, Issue 0, Page 000, Ahead of Print.
Source: Physiological and Biochemical Zoology - June 15, 2012 Category: Zoology Tags: article Source Type: research

A Test of Bone Mobilization Relative to Reproductive Demand: Skeletal Quality Is Improved in Cannibalistic Females with Large Litters
Physiological and Biochemical Zoology, Volume 85, Issue 4, Page 385-396, July 2012.
Source: Physiological and Biochemical Zoology - June 15, 2012 Category: Zoology Tags: article Source Type: research

Factors Influencing the Turnover and Net Isotopic Discrimination of Hydrogen Isotopes in Proteinaceous Tissue: Experimental Results Using Japanese Quail
Physiological and Biochemical Zoology, Volume 85, Issue 4, Page 376-384, July 2012.
Source: Physiological and Biochemical Zoology - June 15, 2012 Category: Zoology Tags: article Source Type: research

Carotenoid-Based Coloration, Condition, and Immune Responsiveness in the Nestlings of a Sexually Dimorphic Bird of Prey
Physiological and Biochemical Zoology, Volume 85, Issue 4, Page 364-375, July 2012.
Source: Physiological and Biochemical Zoology - June 15, 2012 Category: Zoology Tags: article Source Type: research

Hibernation and Circadian Rhythms of Body Temperature in Free-Living Arctic Ground Squirrels
Physiological and Biochemical Zoology, Volume 85, Issue 4, Page 397-404, July 2012.
Source: Physiological and Biochemical Zoology - June 15, 2012 Category: Zoology Tags: article Source Type: research

Relationships between Hair Melanization, Glutathione Levels, and Senescence in Wild Boars
Physiological and Biochemical Zoology, Volume 85, Issue 4, Page 332-347, July 2012.
Source: Physiological and Biochemical Zoology - June 15, 2012 Category: Zoology Tags: article Source Type: research

Of the Importance of Metabolic Phases in the Understanding of Oxidative Stress in Prolonged Fasting and Refeeding
Physiological and Biochemical Zoology, Volume 85, Issue 4, Page 415-420, July 2012.
Source: Physiological and Biochemical Zoology - June 15, 2012 Category: Zoology Tags: article Source Type: research

Dietary Lipid Saturation Influences Environmental Temperature Preference but Not Resting Metabolic Rate in the Djungarian Hamster (Phodopus sungorus)
Physiological and Biochemical Zoology, Volume 85, Issue 4, Page 405-414, July 2012.
Source: Physiological and Biochemical Zoology - June 15, 2012 Category: Zoology Tags: article Source Type: research

The Influence of Social Status on Hepatic Glucose Metabolism in Rainbow Trout Oncorhynchus mykiss
Physiological and Biochemical Zoology, Volume 85, Issue 4, Page 309-320, July 2012.
Source: Physiological and Biochemical Zoology - June 15, 2012 Category: Zoology Tags: article Source Type: research

Carotenoid-Based Ornaments of Female and Male American Goldfinches (Spinus tristis) Show Sex-Specific Correlations withImmune Function and Metabolic Rate
Physiological and Biochemical Zoology, Volume 85, Issue 4, Page 348-363, July 2012.
Source: Physiological and Biochemical Zoology - June 15, 2012 Category: Zoology Tags: article Source Type: research

Hybridization in Sunfish Influences the Muscle Metabolic Phenotype
Physiological and Biochemical Zoology, Volume 85, Issue 4, Page 321-331, July 2012.
Source: Physiological and Biochemical Zoology - June 15, 2012 Category: Zoology Tags: article Source Type: research

Notice of disputed authorship to: Vitamin C supplementation reconstitutes polyfunctional T cells in streptozotocin-induced diabetic rats
Content Type Journal ArticleCategory NOTICE OF DISPUTED AUTHORSHIPPages 1-1DOI 10.1007/s00394-012-0365-xAuthors Gamal Badr, Zoology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451 Saudi ArabiaSamir Bashandy, Zoology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451 Saudi ArabiaHossam Ebaid, Zoology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451 Saudi ArabiaMohamed Mohany, Zoology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451 Saudi ArabiaDouaa Sayed, Clinical Pathology Department, ...
Source: European Journal of Nutrition - June 14, 2012 Category: Nutrition Tags: European Journal of Nutrition Source Type: research

Morphological and acoustic evidence for hybridisation between two broadly sympatric south-eastern Australian tree frogs Litoria ewingii and L. verreauxii (Anura: Hylidae)
Katie L. Smith, Paul M. Oliver, Murray J. Littlejohn
Source: Australian Journal of Zoology - June 14, 2012 Category: Zoology Authors: Katie L. SmithPaul M. OliverMurray J. Littlejohn Source Type: research

Putting the elephant back in the herd: elephant relative quantity judgments match those of other species.
Abstract The ability to discriminate between quantities has been observed in many species. Typically, when an animal is given a choice between two sets of food, accurate performance (i.e., choosing the larger amount) decreases as the ratio between two quantities increases. A recent study reported that elephants did not exhibit ratio effects, suggesting that elephants may process quantitative information in a qualitatively different way from all other nonhuman species that have been tested (Irie-Sugimoto et al. in Anim Cogn 12:193-199, 2009). However, the results of this study were confounded by several methodologic...
Source: Animal Cognition - June 13, 2012 Category: Zoology Authors: Perdue BM, Talbot CF, Stone AM, Beran MJ Tags: Anim Cogn Source Type: research

Zoology: Live birth without a placenta
Nature 486, 7402 (2012). doi:10.1038/486160d Some sharks and rays give birth to live young but lack placentas or umbilical cords. So how do their embryos obtain oxygen?Taketeru Tomita of the Hokkaido University Museum in Hakodate, Japan, and his team used ultrasound to study a pregnant manta ray (Manta
Source: Nature - June 13, 2012 Category: Research Tags: Research Highlights Source Type: research

The subspecies concept in butterflies: has its application in taxonomy and conservation biology outlived its usefulness?
Subspecies lie at the interface between systematics and population genetics, and represent a unit of biological organization in zoology that is widely used in the disciplines of taxonomy and conservation biology. In this review, we explore the utility of subspecies in relation to their application in systematics and biodiversity conservation, and briefly summarize species concepts and criteria for their diagnosis, particularly from an invertebrate perspective. The subspecies concept was originally conceived as a formal means of documenting geographical variation within species based on morphological characters; however, th...
Source: Biological Journal of the Linnean Society - June 13, 2012 Category: Research Authors: MICHAEL F. BRABY, RODNEY EASTWOOD, NEIL MURRAY Source Type: research