Results 71 to 80 of about 7,698 (241)

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

Impacts of habitat modification on the dynamics of waterbird diversity in Guangzhou Haizhu National Wetland Park

Global Ecology and Conservation
The Pearl River Delta (PRD) is a crucial habitat for over 120 species of waterbirds, including migratory species. As a key component of the wetland resources in the PRD, Guangzhou Haizhu National Wetland Park (GHNWP) plays a vital role in supporting the ...
Zhouhan Chen, Xiaoshan Fang, Shangjiangfeng Lin, Xuefei Zhang, Dongmei Yu, Yuanzhihong Liu, Xiqing Liu, Huijian Hu   +7 more
doaj   +1 more source

The impact of earlier flood recession on metacommunity diversity of wintering waterbirds at shallow lakes in the middle and lower Yangtze River floodplain

Avian Research, 2023
The hydrological regime in wetlands plays an important role in the process of wintering waterbird metacommunity assemblage. However, increasing frequency of extreme climate and the intensification of human activities, such as the construction of sluices ...
Zhenhua Wei, Lizhi Zhou
doaj   +1 more source

Community attitudes and support for the restoration of a cryptic seabird in a peopled landscape

People and Nature, EarlyView.
Abstract Ecological restoration projects aim to facilitate species recovery, including the reintroduction and recolonisation of extirpated species. In the case of highly mobile species, restoring habitat within the species' historic range can lead to natural recolonisation.
Michael R. Fox, Todd J. Landers, James C. Russell   +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

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

Consequences of population change for local abundance and site occupancy of wintering waterbirds [PDF]

, 2017
Aim: Population size changes can lead to changes in local abundance and/or site occupancy, depending on the processes influencing site use by individuals.
Baker, Bartón, Bellard, Borregaard, Borregaard, Brown, Burton, Burton, Collins, Collins, Doligez, Drewitt, Frost, Gaston, Gaston, Gaston, Gill, Gregory, Gunnarsson, Hanski, Jackson, Jackson, Kam, Kuussaari, Maclean, Melles, Mendez, Musgrove, Newton, Parmesan, Rehfisch, Tilman, Webb, Yvonne, Zuckerberg   +34 more
core   +2 more sources

Big Bird: A global dataset of birds in drone imagery annotated to species level

Remote Sensing in Ecology and Conservation, EarlyView.
Drones are a valuable tool for surveying birds, but manually detecting and identifying birds in drone images is costly. We assembled a diverse dataset of 23 865 images of birds captured with 21 different drones across 11 countries. We labelled 4824 of these images, detailing the location, species, posture category, age category, and sex of 49 990 birds
Joshua P. Wilson, Tatsuya Amano, Thomas Bregnballe, Alejandro Corregidor‐Castro, Roxane Francis, Diego Gallego‐García, Jarrod C. Hodgson, Landon R. Jones, César R. Luque‐Fernández, Dominik Marchowski, John McEvoy, Ann E. McKellar, W. Chris Oosthuizen, Christian Pfeifer, Martin Renner, José Hernán Sarasola, Mateo Sokač, Roberto Valle, Adam Zbyryt, Richard A. Fuller   +19 more
wiley   +1 more source

Projected Impacts of Climate, Urbanization, Water Management, and Wetland Restoration on Waterbird Habitat in California's Central Valley.

PLoS ONE, 2017
The Central Valley of California is one of the most important regions for wintering waterbirds in North America despite extensive anthropogenic landscape modification and decline of historical wetlands there.
Elliott L Matchett, Joseph P Fleskes
doaj   +1 more source

Waterbirds in a changing world : effects of climate, habitat and conservation policy on European waterbirds [PDF]

, 2017
Climate change has become a major threat for biodiversity in recent decades. Waterbirds, in particular, are very responsive to climate change compared to other avian species and have already shown changes in phenology and distribution.
Pavón Jordán, Diego
core