Results 121 to 130 of about 42,789 (239)

Integrating ecological feedbacks across scales and levels of organization

Ecography, EarlyView.
In ecosystems, species interact in various ways with other species, and with their local environment. In addition, ecosystems are coupled in space by diverse types of flows. From these links connecting different ecological entities can emerge circular pathways of indirect effects: feedback loops.
Benoît Pichon, Sonia Kéfi, Nicolas Loeuille, Ismaël Lajaaiti, Isabelle Gounand   +4 more
wiley   +1 more source

Corticosterone and foraging behaviour in a pelagic seabird [PDF]

, 2007
Because endocrine mechanisms are thought to mediate behavioral responses to changes in the environment, examining these mechanisms is essential for understanding how long-lived seabirds adjust their foraging decisions to contrasting environmental ...
Angelier, F, Chastel, O, Shaffer, Scott A, Trouvé, C, Weimerskirch, H   +4 more
core   +1 more source

Ecosystem Impacts of the Landing Obligation for Unwanted Catch in Thermaikos Gulf (Greece)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Discards by marine commercial fisheries have been an issue of major concern to the scientific community in recent years. We modeled the ecological and trophic consequences of a mandatory landing obligation (LO) regulated by the reformed Common Fisheries Policy [Regulation (EU) 1380/2013] on the Thermaikos Gulf ecosystem (northwestern Aegean ...
Ioannis Keramidas, Donna Dimarchopoulou, Ioanna Argyrou, Athanassios C. Tsikliras   +3 more
wiley   +1 more source

Emergence, spread, and impact of high-pathogenicity avian influenza H5 in wild birds and mammals of South America and Antarctica. [PDF]

Conserv Biol
Abstract The currently circulating high‐pathogenicity avian influenza (HPAI) virus of the subtype H5 causes variable illness and death in wild and domestic birds and mammals, as well as in humans. This virus evolved from the Goose/Guangdong lineage of the HPAI H5 virus, which emerged in commercial poultry in China in 1996, spilled over into wild birds,
Kuiken T, Vanstreels RET, Banyard A, Begeman L, Breed AC, Dewar M, Fijn R, Serafini PP, Uhart M, Wille M.   +9 more
europepmc   +2 more sources

Protecting Life in the Sea [PDF]

, 2010
Unrestrained impact of human activity is imposing fundamental, perhaps irreversible, changes on the world's oceans. This brochure examines the Pew Environment Group's work over the last 15 years and looking ahead to 2012, to increase public awareness and

core  

Post‐Release Survival of the Pelagic Stingray (Pteroplatytrygon violacea, Bonaparte, 1832) in French Longline Fisheries in the Northwestern Mediterranean Sea

Fisheries Management and Ecology, EarlyView.
ABSTRACT Bycatch remains a critical challenge in global fisheries, even when using selective gears such as longlines. In the French longline fishery targeting Atlantic bluefin tuna (Thunnus thynnus) in the Gulf of Lion, the common pelagic stingray (Pteroplatytrygon violacea) is the primary bycatch species.
Antoine Landreau, Vincent Kerzérho, Olivier Derridj, Bertrand Wendling, Nolwenn Cosnard, Tristan Rouyer   +5 more
wiley   +1 more source

Going digital: challenges in monitoring marine megafauna when comparing results from visual and digital aerial surveys

Frontiers in Marine Science
Since the first plans to develop offshore wind farms (OWFs), concerns have been raised about the impacts on marine megafauna. Today, it is required to assess these impacts over the whole lifecycle of the OWF.
Maud Quéroué, Maud Quéroué, Matthieu Authier, Aurélien Besnard, Karine Heerah   +4 more
doaj   +1 more source

Shortlist Masterplan Wind Ship-based monitoring of seabirds and cetaceans [PDF]

During April 2010 – February 2011, monthly surveys of seabirds and marine mammals were conducted aboard ships engaged in plankton surveys. After many years of little or no effort in far offshore areas of the DCS, this series of surveys provided the first
Bemmelen, R.S.A., van, Geelhoed, S.C.V., Leopold, M.F.   +2 more
core   +1 more source

Management Implications of Mesopelagic Forage Fisheries for Bigeye Tuna Stocks

Fisheries Management and Ecology, EarlyView.
ABSTRACT Many large marine predators forage on mesopelagic fish stocks, including commercially valuable tunas. The mesopelagic is under increasing interest for commercial exploitation, given its large biomass with potential to supply fishmeal for aquaculture feed or fish oil.
Ciara Willis, Di Jin, Melina Kourantidou, Simon R. Thorrold   +3 more
wiley   +1 more source

Capelin Size, Condition, and Abundance Through Multiple Heatwaves in Alaska

Fisheries Oceanography, EarlyView.
ABSTRACT Capelin (Mallotus spp.) are pelagic forage fishes that can be especially abundant in sub‐arctic marine ecosystems and are important prey for upper trophic‐level consumers. Abundance and distribution of capelin have been linked to ocean temperature, but the magnitude and directionality of thermal sensitivity can vary regionally.
Robert M. Suryan, Jacek Maselko, Emily A. Fergusson, Fletcher Sewall, Johanna J. Vollenweider, Alexander G. Andrews III, James M. Murphy, Ellen M. Yasumiishi   +7 more
wiley   +1 more source