Results 61 to 70 of about 11,405 (268)

The Association of Pregnancy and Scurvy in Indigenous Women and Their Children From the Late Holocene in California (USA)

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT Limited evidence of nutritional deficiencies has been identified in bioarchaeological studies of Native California populations, although isotopic and ethnohistoric research provides evidence of regional, seasonal, and cultural variability in food shortages.
Alyson Caine, Christopher Canzonieri, Eric J. Bartelink, Andrew Galvan   +3 more
wiley   +1 more source

Waterbirds

Waterbirds
In the floodplain, dense gallery forests, shrublands, large grasslands, exposed mud areas, and seasonally isolated ponds are favorable feeding and breeding grounds for bird species in Tonle Sap Lake. They are home to a number of globally threatened and near-threatened species.
openaire   +2 more sources

Multi-guild waterbird habitat suitability change and hotspots (2018–2024) in China's international wetland cities: MaxEnt + Gi* within a DIKW framework

Ecological Indicators
The implementation of International Wetland City certification and associated conservation measures coincided with changes in the potential distribution of waterbirds in China's coastal wetlands.
Ziyan Ling, Qiuling Li, Weiguo Jiang, Ze Zhang, Peng Hou, Shihui Huang, Zhe Yang, Zhijie Xiao, Xiaogan Yin   +8 more
doaj   +1 more source

Fire, humans, and climate: modeling distribution dynamics of boreal forest waterbirds [PDF]

, 2014
Understanding the effects of landscape change and environmental variability on ecological processes is important for evaluating resource management policies, such as the emulation of natural forest disturbances.
Luca Borger
core   +1 more source

From the brink of extinction to regulation: northern Europe's white‐tailed eagles now face density dependence and climate constraints after rapid population growth

Oikos, EarlyView.
Population growth reflects the combined influence of regulation and density‐independent factors operating through demographic processes. Under exceptional circumstances (e.g. populations recovering from near‐extinction), growth may initially be weakly regulated but typically slows as negative density dependence (NDD) sets in.
Bård‐Jørgen Bårdsen, Elisabeth Hansen, Jan Ove Bustnes   +2 more
wiley   +1 more source

Integrated genomic and transcriptomic approaches reveal oxidative stress adaptation mechanisms in a mesotrione‐resistant Amaranthus tuberculatus biotype

Pest Management Science, EarlyView.
Integrated GWAS and transcriptomics in a Canadian waterhemp biotype reveal mesotrione resistance is polygenic and metabolically driven. Significant SNPs and 187 herbicide‐responsive genes point to enhanced redox homeostasis, glutathione‐linked detoxification, lipid/secondary metabolism, and oxidative stress responses. Resistance arises from coordinated,
Martin Laforest, Marianne Bessette, Geneviève Gagnon, Sandra Flores‐Mejia, Brahim Soufiane, Marie‐Claire Goulet, Dominique Michaud   +6 more
wiley   +1 more source

Multi-scale factors revealed contrasting impacts on Waterbird composition and Beta diversity across wetlands in an Afrotropical landscape

Global Ecology and Conservation
Global loss and human-induced degradation of wetlands are presumed to impact waterbirds. To understand how human activities and habitat features drive waterbird species composition, there is need to understand beta-diversity and its components of ...
Michael C. Ekwemuka, Francis O. Arimoro, Victoria I. Chukwuemeka, Mairo Muhammed, Unique N. Keke   +4 more
doaj   +1 more source

Using time‐series remote sensing to identify and track individual bird nests at large scales

Remote Sensing in Ecology and Conservation, EarlyView.
Time‐series airborne imagery can potentially track individuals over time to collect information beyond one‐off counts. Using weekly UAS‐based imagery of wading bird colonies, we develop an automated approach to identifying nests. Our algorithmic approach detected 68–74% of known nests and exhibited similar performance to human review of imagery ...
S. K. Morgan Ernest, Lindsey A. Garner, Ben G. Weinstein, Peter Frederick, Henry Senyondo, Glenda M. Yenni, Ethan P. White   +6 more
wiley   +1 more source

Spatial scales matter in designing buffer zones for coastal protected areas along the East Asian-Australasian Flyway

Global Ecology and Conservation
Coastal protected areas are increasingly threatened by urbanization, posing significant risks to wetland biodiversity. Consequently, the recognition of buffer zones as essential for reducing anthropogenic impacts on protected areas has grown.
Roger H. Lee, Ivan H.Y. Kwong, Tom C.H. Li, Paulina P.Y. Wong, Yik-Hei Sung, Yat-Tung Yu   +5 more
doaj   +1 more source

Population trends and community composition of migratory waterbirds in three emerging wetlands of global significance in southwestern Bengal, India

Journal of Threatened Taxa, 2016
We studied the diversity, abundance and population trends in three flourishing wetlands of southern Bengal over 16 years.  These wetlands constituted a major shift from the present scenario of overall wetland deterioration, including monotonous declines ...
T. N. Khan, Anirban Sinha, Prantik Hazra
doaj   +1 more source