Results 261 to 270 of about 65,254 (294)

Trophic niche of North American Great Horned Owls

2002
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Cromrich, Lee A., Holt, Denver W., Leasure, Shawne M.   +2 more
openaire   +1 more source

Trophic niche partitioning in symbiotic marine invertebrates

AbstractFierce competition for food and space underpins coral reefs’ biodiversity - supported by photosymbiotic foundational species. In contrast to other ecosystems, there is scant evidence that competition is mitigated by niche partitioning. Indeed, the dynamic evolutionary lineages of symbiotic partners and their syntrophy create layers of ...
Isis Guibert, Inga Elizabeth Conti-Jerpe, Leonard Pons, Kuselah Tayaban, Sherry Lyn Sayco, Patrick Cabaitan, Cecilia Conaco, David Michael Baker   +7 more
openaire   +1 more source

Divergence in the trophic niche of sympatric freshwater invaders

Biological Invasions, 2013
When present in sympatry, invasive species have the potential to amplify or mitigate their ecological impacts through their trophic interactions. Their trophic niches may overlap, limiting impacts to specific trophic levels or functional groups; alternatively, they may diverge, with this niche differentiation resulting in contrasting impacts between ...
Michelle C. Jackson, J. Robert Britton
openaire   +1 more source

Measurement of trophic niche breadth using occurrence frequencies

Journal of Fish Biology, 1991
A modification of Gladfelter‐Johnson's index to measure trophic niche breadth using occurrence frequencies is proposed, in order to make it more sensitive to different resource use patterns. The new index ranges from 0 to 1 and measures niche breadth in a guild context.
openaire   +1 more source

Land-use effects on trophic niche variation across taxonomic groups and trophic levels (TrophNiche)

2023
This document contains the proposal for the project TrophNiche, funded by the DFG for the period 2023-2026. Summary: The trophic niches of consumers depend on the spectrum of food resources available in the landscape. They are linked in food webs, with cascading effects from lower to higher levels. TrophNiche aims to calculate and compare the effect of
openaire   +1 more source

Trophic niche overlap between native and non-native fishes

Hydrobiologia, 2014
In Mexico, non-native species are established in virtually every lake and represent one of the most important factors in species diversity loss. An iconic example is Lake Patzcuaro, which used to provide one of the most abundant fisheries of native species among freshwater systems in Mexico. But in the last decades, the relative abundance of non-native
Fernando Córdova-Tapia, Moisés Contreras, Luis Zambrano   +2 more
openaire   +1 more source

Anthropogenic Disturbance Mediates Trophic Niche Overlap Between Sympatric Generalist Predators

Integrative Zoology
AbstractHuman activities generally increase trophic overlap in predator guilds through resource subsidies, whereas the effects on whether sympatric species overlap or separate their niches are context‐dependent. Mesocarnivores (order Carnivora, Mammalia) are often adaptive and tolerant to human activities, allowing them to establish populations in ...
Hiroshi Tsunoda, Masumi Hisano, Takaaki Enomoto, Masayuki U. Saito   +3 more
openaire   +2 more sources

Trophic Niches and Trophic Adaptations of Prey-Specialized Spiders from the Neotropics: A Guide

2017
Spiders are the most diversified group of terrestrial predators. They employ a wide variety of feeding strategies, and exploit several prey types, from invertebrates up to small vertebrates. Many studies on the trophic ecology of spiders have focused on generalist and euryphagous species.
Stano Pekár, Luis Fernando García, Carmen Viera   +2 more
openaire   +1 more source

The amphibians’ trophic niche project

We here present “The Amphibians’ Trophic Niche Project”, a long-term study that aims to shed light on different aspects of the trophic niche of Italian amphibians. The first part of this project involves the use of the not invasive technique of stomach flushing to obtain stomach contents from individuals in the wild. The analysis of stomach contents (e.
Enrico Lunghi, Raoul Manenti, Gentile Francesco Ficetola, Giorgio Mancinelli, Claudia Corti, Fabio Cianferoni, Gianni Giglio, Francesco Luigi Leonetti, Emilio Sperone, Luca Coppari   +9 more
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Competitive Trophic Niche Modifications in Three Populations of Detritivores

Functional Ecology, 1990
BASSET, Alberto, L. Rossi
openaire   +3 more sources