Results 21 to 30 of about 262,989 (332)
A food chain ecoepidemic model: infection at the bottom trophic level [PDF]
, 2014 In this paper we consider a three level food web subject to a disease affecting the bottom prey. The resulting dynamics is much richer with respect to the purely demographic model, in that it contains more transcritical bifurcations, gluing together the ...
De Rossi, Alessandra +4 more
core +2 more sources
Frontiers in Water, 2021 Streams and rivers are globally threatened ecosystems because of increasing levels of exploitation, habitat degradation and other anthropogenic pressures.
Alfred O. Achieng +6 more
doaj +1 more source
Foods, 2023 Bioaccumulation is the process by which living organisms accumulate substances, such as pesticides, heavy metals, and other pollutants, from their environment.
Enrique Lozano-Bilbao +7 more
doaj +1 more source
Plant-associate interactions and diversification across trophic levels [PDF]
Evolution Letters, 2021 Interactions between species are widely understood to have promoted the diversification of life on Earth, but how interactions spur the formation of new species remains unclear. Interacting species often become locally adapted to each other, but they may also be subject to shared dispersal limitations and environmental conditions.
Jeremy B. Yoder +3 more
openaire +3 more sources
Scientia Marina, 2019 Mean temperature (MTC) and mean trophic level (MTL) spatiotemporal patterns of MEDITS survey catches were examined in 13 geographic statistical areas (GSAs) of the Mediterranean between 1994 and 2016.
Panagiota Peristeraki +11 more
doaj +1 more source
Reconstructing Pleistocene Australian herbivore megafauna diet using calcium and strontium isotopes
Royal Society Open Science, 2023 Isotopes in fossil tooth enamel provide robust tools for reconstructing food webs, which have been understudied in Australian megafauna. To delineate the isotopic composition of primary consumers and understand dietary behaviour at the base of the food ...
Dafne Koutamanis +3 more
doaj +1 more source
Stable isotopes of Hawaiian spiders reflect substrate properties along a chronosequence. [PDF]
, 2018 The Hawaiian Islands offer a unique opportunity to test how changes in the properties of an isolated ecosystem are propagated through the organisms that occur within that ecosystem.
Dawson, Todd +2 more
core +2 more sources
Food and feeding habits of the red mullet, Mullus barbatus (Actinopterygii: Perciformes: Mullidae), off the northern Tunisian coast (central Mediterranean) [PDF]
Acta Ichthyologica et Piscatoria, 2011 Background. The red mullet, Mullus barbatus L., is abundantly captured and targeted throughout the year in Tunisian waters but not all aspects of its biology have been studied well.
M. Chérif +5 more
doaj +3 more sources
Establishing macroecological trait datasets: digitalization, extrapolation, and validation of diet preferences in terrestrial mammals worldwide [PDF]
, 2014 Ecological trait data are essential for understanding the broad-scale distribution of biodiversity and its response to global change. For animals, diet represents a fundamental aspect of species’ evolutionary adaptations, ecological and functional roles,
Dalby, Lars +7 more
core +1 more source
Zooplankton and trophic status of Peipsi-Pihkva Lake
Трансформация экосистем, 2018 Long-term studies of the zooplankton of Chudsko-Pskovskoe (Peipsi-Pihkva) Lake have shown that the species composition and structure of the community correspond to those of eutrophic waters. Intensification of the eutrophication of the lake in the period
Anna V. Cherevichko
doaj +1 more source