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Megafauna and ecosystem function from the Pleistocene to the Anthropocene
(Natl Acad Sciences, 2016-01-26)
Large herbivores and carnivores (the megafauna) have been in a state of decline and extinction since the Late Pleistocene, both on land and more recently in the oceans. Much has been written on the timing and causes of ...
Trophic level and overlap of sea lion (Zalophus californianus) in the Gulf of California, Mexico
(2008)
Stable isotope and scat analyses were used in concert to determine trophic level and dietary overlap among California sea lions from different rookeries in the Gula of California. Isotopic analysis of the fur of sea lion ...
Stable isotope analysis of trophic structure, energy flow and spatial variability in a large ultraoligotrophic lake in Northwest Patagonia
(Elsevier, 2015-09)
The food web structure of the largest lake in northwest Patagonia, Lake Nahuel Huapi (area 557km2), was investigated. Fish, benthic macroinvertebrates, plankton and primary producers were analyzed for stable nitrogen (δ15N) ...
On the relationship between trophic position, body mass and temperature: reformulating the energy limitation hypothesis
(BLACKWELL, 2007-09)
Understanding the factors that constrain and drive changes in food chain length represents an open challenge in ecology. Although several explanatory hypotheses have been proposed, no synthesis has yet been achieved. The ...
Reef fishes at all trophic levels respond positively to effective marine protected areas
(Public Library of Science, 2015-10)
Marine Protected Areas (MPAs) offer a unique opportunity to test the assumption that fishing pressure affects some trophic groups more than others. Removal of larger predators through fishing is often suggested to have ...
The microbial food web structure of a hypertrophic warmtemperate shallow lake, as affected by contrasting zooplankton assemblages
(Springer, 2013-09)
The composition of zooplankton is known to affect the structure of the microbial trophic web. The zooplankton of the hypertrophic Laguna Chascomús (Argentina) is generally dominated by rotifers and cyclopoids copepods. An ...
Trophic interactions in northern Chile upwelling ecosystem, year 1997
(2014)
A food web model is constructed to describe predator-prey interactions, community structure and trophic flows in northern Chile upwelling ecosystem (18°20'S, 24°S), for the year 1997. The model is built using the Ecopath ...