Results 171 to 180 of about 5,638,972 (349)

Can Fecal T3 Metabolite Level Fluctuations in European Roe Deer (Capreolus capreolus) Give Insights on Body Condition and Thermal Stress?

open access: yesIntegrative Zoology, EarlyView.
European roe deer fecal samples were assayed to investigate the potential fluctuations of fecal thyroid hormone metabolites (FTMs) in response to environmental (e.g., the temperature, local densities) and individual (e.g., sex, age, body, and nutritional conditions) variables.
Valeria Pasciu   +6 more
wiley   +1 more source

Skewed sex ratio in an estuarine lobster (Homarus americanus) population [PDF]

open access: yes, 1999
A total of 19,485 lobsters were caught sites in the estuarine and coastal waters of New Hampshire from 1989 to 1992, and their size and sex were determined.
Howell, William Hunting   +1 more
core   +1 more source

Habitat Features, Coyotes, and Humans Drive Diel Activity Variation Among Sympatric Mammals

open access: yesIntegrative 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

Vertical movement patterns of skipjack tuna (Katsuwonus pelamis) in the eastern equatorial Pacific Ocean, as revealed with archival tags [PDF]

open access: yes, 2007
Thirty-three skipjack tuna (Katsuwonus pelamis) (53−73 cm fork length) were caught and released with implanted archival tags in the eastern equatorial Pacific Ocean during April 2004.
Fuller, Daniel W., Schaefer, Kurt M.
core  

Comparative Analysis of Heat Exposure‐Induced Molecular Changes in Two Turtle Species with Contrasting Thermal Adaptations

open access: yesIntegrative Zoology, EarlyView.
Protein processing in the endoplasmic reticulum is highlighted in response to heat stress in Platysternon megacephalum. Under heat stress, the up‐regulation of genes such as CHOP in protein processing in the endoplasmic reticulum pathway, along with the suppression of energy and lipid metabolism and the up‐regulation of JARID2 expression, leads to ...
Jian Hong   +7 more
wiley   +1 more source

Aerospace medicine and biology: A continuing bibliography with indexes (supplement 359) [PDF]

open access: yes
This bibliography lists 164 reports, articles and other documents introduced into the NASA Scientific and Technical Information System during Jan. 1992.

core   +1 more source

An Overlooked Habitat‐Dependent Link Between Metabolism and Water Loss in Reptiles

open access: yesIntegrative 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

Expression and mechanisms of behavioral plasticity in large mammals

open access: yesEcosphere
Behavioral plasticity, the alteration of behavior in response to stimuli, is becoming increasingly important in the context of human‐induced rapid environmental change.
Rebecca R. Thomas‐Kuzilik   +19 more
doaj   +1 more source

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