Results 51 to 60 of about 40,856 (240)

A view from above : changing seas, seabirds and food sources [PDF]

open access: yes, 2009
In this review we summarize what is known about mechanisms by which climate change may be affecting the populations of seabirds around the UK. Breeding success and adult survival are the key factors affecting changes in seabird populations, and food ...
Edwards, M.   +4 more
core  

Diets of shags Phalacrocorax aristotelis and cormorants P. carbo in Norway and possible implications for gadoid stock recruitment [PDF]

open access: yes, 1990
The diets of shags and cormorants were studied in Norway through analyses of regurgitated pellets. Although this method has many limitations, indications were that both species rely heavily on small gadoids (Gadidae) and sand eels (Ammodytidae) for food ...
Barrett, R. T.   +3 more
core   +1 more source

Studying interspecific population synchrony: current status and future perspectives

open access: yesEcography, EarlyView.
Interspecific population synchrony, or co‐fluctuations in the population dynamics and demographic parameters of different species, is an important ecological phenomenon with major implications for the stability of communities and ecosystems. It is also central in the context of biodiversity loss, as interspecific synchrony can influence how ecological ...
Ragnhild Bjørkås   +3 more
wiley   +1 more source

Seabird and Plastic Ingestion Data Set [PDF]

open access: yes, 2019
Plastic debris is a pervasive and critical environmental challenge that is being described as a world-wide crisis for marine life. Seabirds are sensitive to pollutants and are of critical conservation concern. Because seabirds are excellent bioindicators
Caldwell, Aliya   +2 more
core   +1 more source

Hot spots or hot moments? Contextualizing the spatio‐temporal scale of research on animal inputs

open access: yesEcography, EarlyView.
Mammals play important roles in redistributing elements across ecosystems, concentrating biogeochemical inputs across both space and time. However, research on zoogeochemical inputs is often constrained by logistical considerations, potentially limiting our knowledge of mammals' impacts on biogeochemical patterns and processes.
Kristy M. Ferraro   +3 more
wiley   +1 more source

Making the most of the old age: Autumn breeding as an extra reproductive investment in older seabirds

open access: yesEcology and Evolution, 2021
The extrinsic and intrinsic factors affecting differing reproductive strategies among populations are central to understanding population and evolutionary ecology.
Francisco Ramírez   +3 more
doaj   +1 more source

Seabird-Derived Nutrients Supply Modulates the Trophic Strategies of Mixotrophic Corals

open access: yesFrontiers in Marine Science, 2022
The ability of corals to modulate their nutrition strategy in response to variable nutrient supply remains poorly understood, limiting our understanding of energy flow in coral reef ecosystems and thus our comprehension of their resilience to global ...
Martin Thibault   +10 more
doaj   +1 more source

Review of Seabird Demographic Rates and Density Dependence. JNCC Report no. 552 [PDF]

open access: yes, 2015
Introduction This report presents individual species accounts for a selection of British seabirds, sea ducks, divers and grebes. Each account gathers the most up to date published estimates on the following demographic parameters: age-specific ...
Horswill, Catharine, Robinson, Robert A.
core  

Half a Century of Per‐ and Polyfluoroalkyl Substances in Northern Gannet Eggs: Impact of Regulations

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Per‐ and polyfluoroalkyl substances (PFAS), known as “forever chemicals”, are persistent organic pollutants that have been widely used in the industry across the globe for many decades. Their chemical stability, bioaccumulation, and toxicity pose major environmental and health risks. This study examines temporal trends in the concentrations of
Anaïs Fournier   +2 more
wiley   +1 more source

Seabird diving behaviour reveals the functional significance of shelf-sea fronts as foraging hotspots [PDF]

open access: yesRoyal Society Open Science, 2016
Oceanic fronts are key habitats for a diverse range of marine predators, yet how they influence fine-scale foraging behaviour is poorly understood. Here, we investigated the dive behaviour of northern gannets Morus bassanus in relation to shelf-sea ...
S. L. Cox   +8 more
doaj   +1 more source

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