Results 41 to 50 of about 14,915 (237)

Little penguins select more isolated nest boxes for breeding, but lay date influences breeding success

The Journal of Wildlife Management, EarlyView.
We determined that more isolated and possibly older nest boxes were selected by little penguins for breeding at Pōhatu/Flea Bay, New Zealand. However, breeding success was influenced by lay date in comparison to nest box characteristics. These findings inform immediate conservation recommendations regarding nest box design and placement.
Georgia S. M. Gwatkin, Rachel P. Hickcox, Chris N. Niebuhr, Alexandra J. Strang, Sarah P. Flanagan, Michelle A. LaRue   +5 more
wiley   +1 more source

Seabird nutrient subsidy alters size and resource use of functionally important mangrove macroinvertebrates

Ecosphere
Invertebrates have a central role in food webs and ecosystem functioning. By boosting productivity, allochthonous nutrient inputs influence the food webs of recipient communities. Understanding how allochthonous nutrient subsidies affect invertebrates is
Jennifer Appoo, Nicholas A. J. Graham, Christopher W. Jones, Sébastien Jaquemet, Nancy Bunbury   +4 more
doaj   +1 more source

Are arrival date and body mass after spring migration influenced by large-scale environmental factors in a migratory seabird?

Frontiers in Ecology and Evolution, 2015
Changes in the timing of migratory events have been observed recently in many migratory species, most likely in response to climatic change. In the common tern Sterna hirundo we examined such changes in spring arrival date and body mass based on a 19 ...
K. Lesley eSzostek, Sandra eBouwhuis, Peter H. Becker   +2 more
doaj   +1 more source

Changes in the distribution of nesting Arctic seaducks are not strongly related to variation in polar bear presence

Arctic Science, 2020
Contemporary climate change is predicted to expose some species to altered predation regimes. Losses of Arctic sea ice are causing polar bears to increasingly forage on colonial seaduck eggs in lieu of ice-based hunting of marine mammals.
Cody J. Dey, Christina A.D. Semeniuk, Samuel A. Iverson, H. Grant Gilchrist   +3 more
doaj   +1 more source

Deep learning-based seabird detection in fisheries for seabird protection. [PDF]

J R Soc N Z
ABSTRACT New Zealand is considered to be the ‘seabird capital’ of the world. As part of the harvesting process, some commercial fishers accidentally bycatch seabirds during fishing operations, which can result in accidental deaths and injuries.
Leong J, Zhao J, Xue B, Gibson W, Zhang M.   +4 more
europepmc   +4 more sources

Evidence for dispersal personality in the guppy across ecological conditions, with a minor effect of relative brain size

Oikos, EarlyView.
Individuals that disperse typically exhibit specific phenotypical traits that facilitate dispersal and settlement success, known as ‘dispersal syndromes'. Consequentially, characterizing dispersers is crucial to understand other processes such as metapopulation dynamics and biological invasions.
Gilles De Meester, Mirjam Amcoff, Arezo Shamsgovara, Alessandro Devigili, Alexander Kotrschal, John L. Fitzpatrick, Niclas Kolm   +6 more
wiley   +1 more source

Northern Gannet foraging trip length increases with colony size and decreases with latitude

Royal Society Open Science
Density-dependent competition for food influences the foraging behaviour and demography of colonial animals, but how this influence varies across a species’ latitudinal range is poorly understood.
Bethany L. Clark, Freydís Vigfúsdóttir, Sarah Wanless, Keith C. Hamer, Thomas W. Bodey, Stuart Bearhop, Ashley Bennison, Jez Blackburn, Sam L. Cox, Kyle J. N. d’Entremont, Stefan Garthe, David Grémillet, Mark Jessopp, Jude Lane, Amélie Lescroël, William A. Montevecchi, David J. Pascall, Pascal Provost, Ewan D. Wakefield, Victoria Warwick‐Evans, Saskia Wischnewski, Lucy J. Wright, Stephen C. Votier   +22 more
doaj   +1 more source

Seabirds as a subsistence and cultural resource in two remote Alaskan communities

Ecology and Society, 2014
Small rural Alaskan communities face many challenges surrounding rapid social and ecological change. The role of local subsistence resources may change over time because of changes in social perception, economic need, and cultural patterns of use.
Rebecca C. Young, Alexander S. Kitaysky, Courtney Carothers, Ine Dorresteijn   +3 more
doaj   +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

Area‐restricted search under realistic constraints

Oikos, EarlyView.
Abstract Area‐restricted search (ARS) is one of the most influential and widely used concepts in foraging theory, capturing a simple rule by which animals intensify local search following a resource encounter. Because ARS performs well in many spatially structured environments, it serves as a basic model for interpreting movement patterns across taxa ...
Inon Scharf, Arik Dorfman
wiley   +1 more source