In the southern Benguela ecosystem off South Africa, there were recent shifts to the south and east in the distributions of three forage resources (anchovy, sardine, rock lobster), which …
D Grémillet, L Pichegru, G Kuntz… - … of the Royal …, 2008 - royalsocietypublishing.org
Worldwide fisheries generate large volumes of fishery waste and it is often assumed that this additional food is beneficial to populations of marine top-predators. We challenge this …
Summary 1 Remote‐sensing measurements of marine primary productivity are widely used to predict the distribution and movements of marine top predators, despite the fact that …
Animal-borne sensors enable researchers to remotely track animals, their physiological state and body movements. Accelerometers, for example, have been used in several studies …
JP Roux, CD van der Lingen… - Bulletin of Marine …, 2013 - ingentaconnect.com
Changes in two contrasting ecosystems of the Benguela upwelling region, one dominated at mid-trophic level by jellyfishes (Namibia, northern Benguela ecosystem, where small pelagic …
RJM Crawford, R Altwegg, BJ Barham… - African Journal of …, 2011 - Taylor & Francis
The number of African penguins Spheniscus demersus breeding in South Africa collapsed from about 56 000 pairs in 2001 to some 21 000 pairs in 2009, a loss of 35 000 pairs (> …
Niche variation is a widespread phenomenon that has important implications for ecological interactions and conservation biology, but few studies have quantified the trophic niche …
L Pichegru, PG Ryan, C Le Bohec… - Marine Ecology …, 2009 - int-res.com
Industrial-scale fisheries are often thought to reduce food availability for top predators. It is essential to estimate the spatial and temporal overlap over a fine scale between fisheries …
A Thiebault, M Semeria, C Lett… - Journal of Animal …, 2016 - Wiley Online Library
Prey aggregations, such as fish schools, attract numerous predators. This typically leads to the formation of multispecific groups of predators. These aggregations can be seen both as …