Results 221 to 230 of about 17,442 (251)

Stable Isotope Analysis Reveals Habitat-Driven Dietary Niches of <i>Lepus europaeus</i>. [PDF]

open access: yesAnimals (Basel)
Balčiauskas L   +5 more
europepmc   +1 more source

Diet and trophic niche overlap of two ranid species in northern Italy

Italian Journal of Zoology, 2000
Abstract Diet of two syntopic populations of Rana dalmatina and R. synklepton esculenta were studied in order to collect data about competition and niche overlap in relation to habitats frequented. Field observations confirm previous ecological researches and show that the former species has a short aquatic phase during the mating period; it lives in ...
Franca Guidali   +2 more
exaly   +2 more sources

Trophic niche overlap among Neotropical carnivores in a silvicultural landscape

Mammalia, 2023
Abstract To enable long-term coexistence, species need to differentiate at least one of the three main dimensions of the ecological niche (temporal, spatial, or trophic dimension). Here, we investigated whether mammalian predators ( Chrysocyon brachyurus ,
Ana Beatriz de Almeida   +6 more
openaire   +1 more source

High trophic overlap between co-occurring sea urchins in Southern Brazil

Regional Studies in Marine Science, 2022
CARLOS Alberto da Silva   +2 more
exaly   +2 more sources

Trophic Niche Overlap Of Lake Superior Nearshore Fishes

2023
Presentation for Great Lakes Fishery Commission Upper Lakes Committee on March 21-24, 2023 in Sault Sainte Marie, Ontario, Canada Science Inventory, CCTE products: https://cfpub.epa.gov/si/si_public_search_results.cfm?advSearch=true&showCriteria=2&keyword=CCTE&TIMSType=&TIMSSubTypeID=&epaNumber=&ombCat=Any& ...
Hanson, Jessie   +7 more
openaire   +1 more source

Midsummer Trophic Overlap Between Guanaco and Sheep in Patagonian Rangelands

Rangeland Ecology & Management, 2020
Abstract Diet overlap estimation among species is important to understand interspecific interactions. Through these interactions, one species may extinguish others through competition or adapt through mechanisms such as resource partitioning. The introduction of domestic herbivores in a native assemblage may introduce competition for resources with ...
Felipe Pontigo   +4 more
openaire   +1 more source

Trophic overlap between native and invasive stream crayfish

Hydrobiologia, 2015
We examined trophic dynamics of a stream food web where invasive Orconectes neglectus appear to be displacing native O. eupunctus in the Spring River drainage of the Ozark Highlands, Missouri and Arkansas, USA. We collected crayfish species and possible food sources seasonally from a site of sympatry on the South Fork Spring River.
Daniel D. Magoulick, Glenn L. Piercey
openaire   +1 more source

Trophic niche width and overlap of two sympatric gulls in the southwestern mediterranean

Oecologia, 1997
The diets of two potential competitor species, Audouin's Larus audouinii and yellow-legged gulls Larus cachinnans, were examined while they bred at the Chafarinas Islands during 1993, 1994, and 1995. Data were collected during two commercial fishing regimes: (1) trawling and purse seine fisheries, and (2) diurnal trawlers only.
Jacob, González-Solís   +4 more
openaire   +2 more sources

A trophic overlap-based measure for species uniqueness in ecological networks

Ecological Modelling, 2015
Abstract Species importance is often defined by how central the role a species plays in a food web. Here we argue that species importance should also incorporate the concept of uniqueness of its network position. By developing a previous methodology, we propose a new approach for species uniqueness.
Lai, Shu-mei   +2 more
openaire   +2 more sources

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