Results 31 to 40 of about 63,538 (270)

Assessing breeding duck population trends relative to anthropogenic disturbances across the boreal plains of Canada, 1960-2007

Avian Conservation and Ecology, 2020
Impacts of anthropogenic disturbance on duck populations in the boreal forest is largely unknown but hypothesized to negatively influence abundance through top-down and bottom-up processes.
Howard V. Singer, Stuart M. Slattery, Llwellyn Armstrong, Susan Witherly   +3 more
doaj  

Effects of habitat conditions in created wetlands on sustaining wintering waterfowl in riverine plains, Nakdong River, South Korea

Journal of Ecology and Environment, 2015
The landscape setting of a habitat strongly influences the distribution, abundance, and species composition of waterfowl. Thus, habitat assessment is very important to understand the habitat characteristics that sustain waterfowl
Jong-Yun Choi1, Ji-Deok Jang, Kwang-Seuk Jeong, Gea-Jae Joo   +3 more
doaj   +1 more source

OPN5 Regulating Mechanism of Follicle Development Through the TSH-DIO2/DIO3 Pathway in Mountain Ducks Under Different Photoperiods

Frontiers in Physiology, 2022
: Photoperiod is an important environmental factor that influence seasonal reproduction behavior in bird. Birds translates photoperiodic information into neuroendocrine signals through deep brain photoreceptors (DBPs).
Sui Liufu, Sui Liufu, Jianqiu Pan, Jianqiu Pan, Junfeng Sun, Junfeng Sun, Xu Shen, Xu Shen, Danli Jiang, Danli Jiang, Hongjia Ouyang, Hongjia Ouyang, Danning Xu, Yunbo Tian, Yunbo Tian, Yunmao Huang, Yunmao Huang   +16 more
doaj   +1 more source

Assessment of the environmental toxicity and carcinogenicity of tungsten-based shot. [PDF]

, 2009
The toxicity of elemental tungsten released from discharged shot was assessed against previous studies that established a 1% toxic threshold for soil organisms.
Harrison, Paul T. C., Roberts, Michael J., Thomas, Vernon G.   +2 more
core   +1 more source

Using Breeding Bird Survey and eBird data to improve marsh bird monitoring abundance indices and trends

Avian Conservation and Ecology, 2023
The elusive nature of many marsh-breeding birds presents a challenge for effective population monitoring. The Great Lakes Marsh Monitoring Program (GLMMP), delivered by Birds Canada, addressed these challenges by concentrating survey efforts in marsh ...
Kristin Bianchini, Douglas C. Tozer
doaj  

Highly Pathogenic Avian Influenza (H5N1) Landscape Suitability Varies by Wetland Habitats and the Degree of Interface between Wild Waterfowl and Poultry in India

Viruses, 2020
Highly pathogenic avian influenza (HPAI) virus, subtype H5N1, constitutes one of the world’s most important health and economic concerns given the catastrophic impact of epizootics on the poultry industry, the high mortality attending spillover in humans,
Michael G. Walsh, Siobhan M. Mor, Shah Hossain   +2 more
doaj   +1 more source

Potential Effects of Habitat Change on Migratory Bird Movements and Avian Influenza Transmission in the East Asian-Australasian Flyway

Diversity, 2023
Wild waterbirds, and especially wild waterfowl, are considered to be a reservoir for avian influenza viruses, with transmission likely occurring at the agricultural-wildlife interface.
John Y. Takekawa, Diann J. Prosser, Jeffery D. Sullivan, Shenglai Yin, Xinxin Wang, Geli Zhang, Xiangming Xiao   +6 more
doaj   +1 more source

Polysaccharide of Atractylodes macrocephala Koidz (PAMK) Relieves Immunosuppression in Cyclophosphamide-Treated Geese by Maintaining a Humoral and Cellular Immune Balance

Molecules, 2018
Polysaccharide of Atractylodes macrocephala Koidz (PAMK) has been well recognized as an immune enhancer that can promote lymphocyte proliferation and activate immune cells.
Wanyan Li, Sixuan Guo, Danning Xu, Bingxin Li, Nan Cao, Yunbo Tian, Qingyan Jiang   +6 more
doaj   +1 more source

A Genomic Catalog of Migratory Microbiomes from Wild Birds across China's Habitats

Advanced Science, EarlyView.
ABSTRACT Migratory birds play an important role in the spread of antimicrobial resistance (AMR); however, gaps in surveillance data from vital regions along migratory flyways across China limit the detection of emergent threats. Here, we assembled 340 metagenomes from 52 bird species covering 11 provincial administrative districts in China, presenting ...
Yanan Wang, Heqi Wu, Mengqi Qu, Chunge Zhang, Ziqian Xu, Yuhang Pei, Chaochao Zhao, Jiangtao Wang, Sufang Ma, Na Lyu, Xuebin Xu, Yuhai Bi, Baoli Zhu, George F. Gao   +13 more
wiley   +1 more source

Construction and differential analysis of testicular atlas between 10-week-old and 23-week-old ducks using single-cell RNA sequencing

Poultry Science
While spermatogenesis has been extensively characterized in mammals, its molecular underpinnings in avian species remain largely unexplored. To address this knowledge gap, we performed single-cell transcriptomic profiling of duck testes across ...
Zhiyun Tao, Wenjuan Xu, Weitao Song, Lizhi Lu, Shuangjie Zhang, Hongxiang Liu, Zhicheng Wang, Haotian Gu, Chunhong Zhu, Huifang Li   +9 more
doaj   +1 more source