Results 91 to 100 of about 26,897 (235)
Bulletin of the Center for Children's Books 25 (08) 1972 [PDF]
, 1972 published or submitted for ...
core
Wildlife Biology, EarlyView.Overabundant populations of eastern grey kangaroos Macropus giganteus in peri‐urban areas pose ecological and social challenges. Current management strategies are often hindered by animal welfare and logistical concerns. This study aimed to assess stress responses of kangaroos to two contraceptive delivery methods.
Fabiola R. O. Silva +4 more
wiley +1 more source
Habitat Features, Coyotes, and Humans Drive Diel Activity Variation Among Sympatric Mammals
Integrative Zoology, EarlyView.We found that multiple mammal species show considerable variation in diel activity in response to several factors, with biotic variables (habitat features and the presence of coyotes Canis latrans) having the strongest overall effects. Our results have important implications for trophic dynamics. Future studies will need to account for these underlying
Nathan J. Proudman, Maximilian L. Allen
wiley +1 more source
A large carnivorous mammal from the Late Cretaceous and the North American origin of marsupials
Nature Communications, 2016 The early fossil record of metatherian mammals, the group including marsupials, is limited. Here, Wilson and colleagues describe a fossil skull of the Late Cretaceous metatherianDidelphodon vorax, providing insight into the ecology of this species as ...
Gregory P. Wilson +4 more
doaj +1 more source
Nest niche overlap among the endangered Vinaceous-breasted Parrot (Amazona vinacea) and sympatric cavity-using birds, mammals, and social insects in the subtropical Atlantic Forest, Argentina [PDF]
, 2017 Many forest bird species require tree cavities for nesting, and share this resource with a diverse community of animals. When cavities are limited, niche overlap can result in interspecific competition, with negative consequences for threatened ...
Bonaparte, Eugenia Bianca +1 more
core +1 more source
An Overlooked Habitat‐Dependent Link Between Metabolism and Water Loss in Reptiles
Integrative Zoology, EarlyView.We measured the gas exchange of six lizard and six snake species, under high and low air humidity, and two intriguing patterns emerged. First, although desert species lose less water via evaporation than similar‐sized mesic species under similar conditions, water loss is virtually the same when each is exposed to its natural conditions.
Shahar Dubiner, Shai Meiri, Eran Levin
wiley +1 more source
Integrative Zoology, EarlyView.This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez +4 more
wiley +1 more source
Integrative Zoology, EarlyView.The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic +10 more
wiley +1 more source
One number to rule them all: The Wildlife Sperm Index for standardized gamete assessment
Methods in Ecology and Evolution, EarlyView.Abstract In wildlife conservation, breeding programmes focused on reintroduction are critical to recovering endangered species. Assisted reproductive technologies (ARTs) and biobanking play pivotal roles in these efforts but depend on high‐quality gametes.
Leah Jacobs +4 more
wiley +1 more source
Acta Zoologica, EarlyView.ABSTRACT The cuticle and medulla of guard hairs exhibit distinct morphological patterns among mammalian species. To investigate this variability in marsupials from the Brazilian Amazon, we analysed guard hairs from nine Didelphimorphia species and incorporated data from an additional 25 didelphid species.
Matheus M. Bitencourt +4 more
wiley +1 more source