Results 11 to 20 of about 26,138 (280)

Evaluation of fall‐seeded cover crops for grassland nesting waterfowl in eastern South Dakota

open access: yesWildlife Society Bulletin, EarlyView., 2023
Cover crops are experiencing a revival among Midwestern farmers, and we assessed their attractiveness and safety for nesting ducks in South Dakota. Nest success was markedly lower in cover crops than in perennial cover during both years of our study, including 2019 which was a best‐case scenario for cover crops, with extremely wet conditions delaying ...
Charles W. Gallman   +3 more
wiley   +1 more source

Resveratrol sustains intestinal barrier integrity, improves antioxidant capacity, and alleviates inflammation in the jejunum of ducks exposed to acute heat stress

open access: yesPoultry Science, 2021
: Resveratrol, a natural antioxidant, anti-inflammatory plant extract, was found to have a protective effect in poultry subjected to heat stress. In this study, we strove to characterize resveratrol on intestinal of duck exposed to acute heat stress and ...
Chen Yang   +8 more
doaj   +1 more source

Expression of GnIH and its effects on follicle development and steroidogenesis in quail ovaries under different photoperiods

open access: yesPoultry Science, 2022
: Photoperiod is an important environmental factor that influence seasonal reproduction behavior in bird and GnIH can play a function in this process through the reproductive axis, and some studies suggest that GnIH may have a direct role at the gonadal ...
Xiaoli Zhou   +7 more
doaj   +1 more source

North American Waterfowl Management Plan Survey Regional Profile: Southeast Region

open access: yes, 2022
Gaining a better understanding of the human dimensions of waterfowl management to inform the North American Waterfowl Management Plan is a valuable but challenging goal for the future success of waterfowl management.
Nicholas Cole
core   +1 more source

Linking Canadian Harvested Juvenile American Black Ducks to Their Natal Areas Using Stable Isotope (δD, δ13C, and δ15N) Methods

open access: yesAvian Conservation and Ecology, 2010
Understanding source-sink dynamics of game birds is essential to harvest and habitat management but acquiring this information is often logistically and financially challenging using traditional methods of population surveys and banding studies.
Paul Ashley   +4 more
doaj   +1 more source

Photoperiodic Changes in Both Hypothalamus Neurotransmitters and Circulating Gonadal Steroids Metabolomic Profiles in Relation to Seasonal Reproduction in Male Quail

open access: yesFrontiers in Physiology, 2022
Both hypothalamic neurotransmitters and serum steroid hormones are impacted by photoperiod and have effects on physiology and seasonal reproductive.
Yanglong Xu   +25 more
doaj   +1 more source

Environmental influences on moult and movement strategies in southern African waterfowl [PDF]

open access: yes, 2012
Includes abstract.Includes bibliographical references.Waterfowl annual life history events in north-temperate regions are driven primarily by predictable seasonal variations in temperature.
Ndlovu, Mduduzi
core   +1 more source

Reference gene selection for expression studies in the reproductive axis tissues of Magang geese at different reproductive stages under light treatment

open access: yesScientific Reports, 2021
In quantitative PCR research, appropriate reference genes are key to determining accurate mRNA expression levels. In order to screen the reference genes suitable for detecting gene expression in tissues of the reproductive axis, a total of 420 (males and
Bei-Bei Zhang   +5 more
doaj   +1 more source

Spatial and Temporal Variations in Waterfowl Assemblage Structures in Mongolian Lakes and the Changes Linked to the Gradient of Lake Surface Areas

open access: yesDiversity, 2023
Lakes and wetlands provide top-priority hotspots that play a key role in maintaining and protecting threatened and migratory waterfowl. Identifying seasonal and spatial variations in aquatic bird communities and their responses to environmental factors ...
Zoljargal Purevdorj   +8 more
doaj   +1 more source

Response of nesting waterfowl to flooding in Great Salt Lake wetlands [PDF]

open access: yes, 1989
Great Salt Lake wetlands were inundated in 1983, displacing approximately 20,000 nesting waterfowl. Ten protected marshes in the Great Basin were surveyed for changes in numbers of breeding pairs of waterfowl during each of four years preceding Great ...
Foote, A.L.
core   +1 more source

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