Data from: Maternal transfer of androgens in eggs is affected by food supplementation but not by predation riskChiara Morosinotto, Robert L. Thomson, Suvi Ruuskanen, Erkki Korpimäki, Esa Lehikoinen, Erich Möstl & Toni Laaksonen
Mothers may affect the future success of their offspring by varying allocation to eggs and embryos. Allocation may be adaptive based on the environmental conditions perceived during early breeding. We investigated the effects of food supplementation and predation risk on yolk hormone transfer in the pied flycatcher Ficedula hypoleuca. In a food supplementation experiment, females were food-supplemented prior to and during egg-laying and androgen concentrations were measured throughout the laying order. Predation risk was investigated...
Data from: Pathologic evaluation of type 2 porcine reproductive and respiratory syndrome virus infection at the maternal-fetal interface of late gestation pregnant giltsPredrag Novakovic, John C.S. Harding, Ahmad N. Al-Dissi, Andrea Ladinig, Susan E. Detmer & John C. S. Harding
The pathogenesis of fetal death caused by reproductive porcine reproductive and respiratory syndrome virus (PRRSV) remains unclear. The objective of this study was to improve our understanding of the pathogenesis by assessing potential relationships between specific histopathological lesions and PRRSV RNA concentration in the fetuses and the maternal-fetal interface. Pregnant gilts were inoculated with PRRSV (n=114) or sham inoculated (n=19) at 85±1 days of gestation. Dams and their litters were humanely euthanized and necropsied 21...
Soil microarthropods as organic matter decomposers play an important role in soil functioning thus providing ecosystem services. However, ecosystem scale investigations on their abundance and dynamics are scarce because their high spatio-temporal heterogeneity requires huge sample size. Processing and identifying large number of individuals are extremely labour-intensive. We prototyped a device called EDAPHOLOG monitoring system that consists of (1) a probe that catches and detects microarthropods and estimates their body size; (2) a data logger...
Body size is one of the most fundamental characteristics of all organisms. It influences physiology, morphology, behavior, and even interspecific interactions such as those between parasites and their hosts. Host body size influences the magnitude and variability of parasite size according to Harrison's Rule (HR: positive relationship between host and parasite body sizes) and Poulin’s Increasing Variance Hypothesis (PIVH: positive relationship between host body size and the variability of parasite body size). We analyzed parasite-host...
Data from: The adaptive potential of subtropical rainbowfish in the face of climate change: heritability and heritable plasticity for the expression of candidate genesScott R. J. McCairns, Steve Smith, Minami Sasaki, Louis Bernatchez, Luciano B. Beheregaray & R. J. Scott McCairns
Whilst adaptation and phenotypic plasticity might buffer species against habitat degradation associated with global climate change, few studies making such claims also possess the necessary and sufficient data to support them. Doing so requires demonstration of heritable variation in traits affecting fitness under new environmental conditions. We address this issue using an emerging aquatic system to study adaptation to climate change, the crimson-spotted rainbowfish (Melanotaenia duboulayi), a freshwater species from a region of eastern Australia...
It has been suggested that polyandry allows females to increase offspring genetic diversity and reduce the prevalence and susceptibility of their offspring to infectious diseases. We tested this hypothesis in wild-derived house mice (Mus musculus) by experimentally infecting the offspring from 15 single- and 15 multiple-sired litters with two different strains of a mouse pathogen (Salmonella Typhimurium) and compared their ability to control infection. We found a high variation in individual infection resistance (measured with...
Data from: Sequential stable isotope analysis reveals differences in dietary history of three sympatric equid species in the Mongolian GobiMartina Burnik Šturm, Oyunsaikhan Ganbaatar, Christian C. Voigt & Petra Kaczensky
Competition among sympatric wild herbivores is reduced by different physiological, morphological and behavioural traits resulting in different dietary niches. Wild equids are a rather uniform group of large herbivores which have dramatically declined in numbers and range. Correlative evidence suggests that pasture competition with livestock is one of the key factors for this decline, and the situation may be aggravated in areas where different equid species overlap. The Dzungarian Gobi is currently the only place...
University of Veterinary Medicine7
Johns Hopkins University1
University of Saskatchewan1
Nederlands Instituut voor Ecologie1
National Autonomous University of Mexico1
University of Veterinary Medicine Vienna1
Hungarian Academy of Sciences1
University of Basel1
University of Debrecen1