Results 21 to 30 of about 1,324,396 (134)
Effect of predator type, season, brood size, and West Nile Virus infection on the nest defense behavior of male and female Eastern Bluebirds [PDF]
, 2012 The intensity of nest defense by birds can be influenced by many factors, including a parent\u27s sex, brood size, stage of breeding season, type of predator, and physical condition.
Gilbert, Kayde Lynn
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, 2010 Amphibians exhibit plasticity in the timing of metamorphosis, and tadpoles of many species respond to pond drying by accelerating their development. In the present study we investigated the phenotypic plasticity of the developmental response to water ...
Marian Tudor +2 more
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Hypotheses for the Adaptive Maintenance of Phenotypic Polymorphisms
Ecology and Evolution, Volume 16, Issue 5, May 2026.Phenotypic polymorphisms offer easily observable diversity ideal for empirical and theoretical exploration, but developing and comparing hypotheses for the adaptive maintenance of polymorphism can be a challenge. Here, we propose a framework categorizing polymorphisms based on (i) one of five distinct types of maintenance selection and (ii) the context
Jay J. Falk +2 more
wiley +1 more source
The Journal of Wildlife Management, Volume 90, Issue 3, April 2026.We used automated recording units to estimate anuran occupancy of wetlands created on reforested surface mines (USA) and examined factors affecting anuran detection probabilities. Mean overall occupancy, species‐specific occupancy, and species richness were generally highest in sites that were 1‐6 years post restoration, suggesting anurans may rapidly ...
Jillian C. Newman +6 more
wiley +1 more source
The Influence of Climate and Livestock Grazing on Two Species of Burrowing Desert Frogs
Austral Ecology, Volume 51, Issue 3, March 2026.ABSTRACT Frogs are one of the most vulnerable groups of vertebrates globally, occupying a range of environments including arid deserts. They are threatened by many interacting factors, including climate change and livestock grazing. In this study, we present the first long‐term research (over 30 years) on two arid‐dwelling frogs in Australia, the ...
R. J. Cairncross +2 more
wiley +1 more source
Ultraviolet reflectance of nestling plumage and the provisioning strategies of adult Eastern Phoebes (Sayornis phoebe) [PDF]
, 2011 Most songbirds are visually sensitive to ultraviolet (UV) wavelengths and, in some species, variation in the extent to which plumage reflects in the UV range provides information about individual quality that influences mate-choice decisions.
Underwood, Alyssa Rae
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Effect of nestling sex ratio on the provisioning behavior of adult Eastern Bluebirds (Sialia sialis) [PDF]
, 2011 To maximize reproductive success, parents may, in some cases, differentially invest in sons and daughters, i.e., sex-biased parental investment. Preferential provisioning behavior has been reported in one population of Eastern Bluebirds (Sialia sialis ...
Kieffer, Barbara Ellen
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Wildlife Society Bulletin, Volume 49, Issue 3, September 2025.Herpetofaunal camera arrays versus pitfall and funnel trap arrays were tested in upland habitats of Florida, USA, and found that the methods are complementary in recording species richness and abundance; they were also similar in costs of use. Future herpetofaunal field studies should employ both cameras and live traps to best estimate populations and ...
Tiffany M. Doan
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Ecosphere, Volume 16, Issue 8, August 2025.Abstract Estimating how close a species is to its upper thermal limits (i.e., warming tolerance, a thermal sensitivity index) and how that proximity changes across space enables spatially explicit identification of species with increased extinction risk as temperatures increase. Yet, thermal sensitivity is often difficult to calculate because it is the
Traci P. DuBose +6 more
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Hybridisation as a Potential Extinction Threat to an Endangered Australian Frog
Ecology and Evolution, Volume 15, Issue 6, June 2025.We used single nucleotide polymorphism data and morphological assessment to investigate hybridisation and introgression between two Australian frog species not previously reported to hybridise, the endangered Booroolong frog (Litoria booroolongensis) and its abundant congener, the eastern stony creek frog (Litoria wilcoxii).
Gracie Liu, Jodi J. L. Rowley
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