Results 121 to 130 of about 28,562 (249)

The Larger the Egg, the Safer the Nest: A Study on the Negative Correlation Between Nest Predation Rates and Egg Size of Two Tropical Phasianids in Hainan

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
There is a lack of research on the predation of tropical pheasant nests. The study conducted artificial nest experiments based on egg size and we have supported the viewpoint that using experimental eggs matched in size with those of natural eggs improves the accuracy of artificial nest simulation studies. ABSTRACT Nest predation is the principal cause
Yuhan Zhang   +4 more
wiley   +1 more source

On the North American invasion of the House Sparrow and its absence in the Yucatan Peninsula

open access: yesAvian Conservation and Ecology, 2021
Biological invasions occur when individuals of alien species establish and colonize new locations. The House Sparrow (Passer domesticus) is one of the most widespread invasive birds, native to Eurasia and North Africa, and has successfully invaded many ...
Alexander Peña-Peniche   +3 more
doaj  

On hybridisation of Indian and house sparrows

open access: yes, 1965
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Fifty Years Later, and We Still Don't Know About Badges of Status

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
Overall, aggression and coloration are positively associated across species, but the generality of this relationship is low, the relationship depends on effect size origin, and the dataset requires further verification, which raises methodological concerns.
Alfredo Sánchez‐Tójar   +1 more
wiley   +1 more source

The influence of season, photoperiod, and pineal melatonin on immune function. [PDF]

open access: yes, 1995
In addition to the well-documented seasonal cycles of mating and birth, there are also significant seasonal cycles of illness and death among many animal populations.
Demas, G   +3 more
core   +1 more source

Seasonal Dynamics of the Gut Microbiome in Urban Feral Pigeons Are Associated With Environmental Conditions, Not With Diet Shifts

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
Using feral pigeons in urban environments, we show that microbiome diversity and composition vary seasonally despite stable diet composition. ABSTRACT Gut microbiomes play a crucial role in host physiology and seasonal adaptation. While seasonal shifts in avian gut microbiota are often attributed to seasonal diet variation, environmental factors may be
Kangqing Zhang   +5 more
wiley   +1 more source

Effect of estradiol and predator cues on behavior and brain responses of captive female house sparrows (Passer domesticus). [PDF]

open access: yesFront Physiol, 2023
Kimball MG   +5 more
europepmc   +1 more source

Narrative review of strategies for blood product shelf‐life extension

open access: yes
Transfusion, EarlyView.
Mike Akaraphanth   +7 more
wiley   +1 more source

Monitoring mercury across the National Wildlife Refuge System using a biosentinel approach

open access: yesThe Journal of Wildlife Management, Volume 90, Issue 4, May 2026.
We measured mercury concentrations in 1,356 dragonfly larvae collected from 30 National Wildlife Refuges across the United States and found wide variability among refuges, spanning the full range reported for other protected lands. Using a management‐focused mercury impairment index, 80% of refuges contained sites classified as moderate or higher risk.
Jennifer L. Wilkening   +8 more
wiley   +1 more source

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