Results 211 to 220 of about 16,020 (250)

Seasonal effects of land cover and intensity of farming practices on α and β diversity of grassland arthropod communities

Insect Conservation and Diversity, EarlyView.
Land cover heterogeneity drives grassland arthropod diversity in spring, while local management intensity becomes the primary driver in autumn, revealing strong seasonal shifts in environmental influences. Landscape‐scale farming intensity significantly shapes arthropod community composition through balanced variation, demonstrating its role as an ...
Théo Brusse, Jodie Thénard, Ronan Marrec, Gaël Caro   +3 more
wiley   +1 more source

Comparative Analysis of Lanner and Peregrine Trophic Niche in the Mediterranean

Bondi, S, Vitale, E, Antioco, N, Guzzo, E, Schifani, E, Sara', M   +5 more
openaire   +1 more source

Isotopic niche is not equal to trophic niche

Ecology Letters, 2019
AbstractThe work of Sheppard et al. (Ecol. Lett., 21, 2018, 1395) relies on the strong assumption that isotopic niche is equal to trophic niche. Here I raise three main concerns showing that classic hypotheses built upon trophic niche cannot be directly interpreted in isotopic space.
Nicolas Hette-Tronquart
exaly   +6 more sources

Food webs and the dimensionality of trophic niche space [PDF]

Proceedings of the National Academy of Sciences of the United States of America, 1977
If the trophic niche of a kind of organism is a connected region in niche space, then it is possible for trophic niche overlaps to be described in a one-dimensional niche space if and only if the trophic niche overlap graph is an interval graph. An analysis of 30 food webs, using the combinatorial theory of interval graphs, suggests that a niche space ...
Joel E Cohen, Cohen Joel E
exaly   +3 more sources

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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, Britton J Robert   +2 more
exaly   +2 more sources

Isotopic niche mirrors trophic niche in a vertebrate island invader

Oecologia, 2012
(Uploaded by Plazi for the Bat Literature Project) No abstract provided.
Marlenne A M, Rodríguez, L M, Gerardo Herrera   +1 more
openaire   +3 more sources

Trophic niche and habitat shifts of sympatric Gerreidae

Journal of Fish Biology, 2014
The diet and mouth growth rates of three Gerreidae species (Eugerres brasilianus, Eucinostomus melanopterusandDiapterus rhombeus) were assessed at different ontogenetic phases (juveniles, sub‐adults and adults) in order to detect allometric growth, and whether they are related to habitat and seasonal changes in the Goiana Estuary, north‐east Brazil ...
J A A, Ramos, M, Barletta, D V, Dantas, A R A, Lima, M F, Costa   +4 more
openaire   +2 more sources

Interpopulation trophic niches and ontogenetic shifts of a mangrove fish predator

Journal of Fish Biology, 2022
AbstractFish trophic niches reflect important ecological interactions and provide insight into the structure of mangrove food webs. Few studies have been conducted in mangrove fish predators to investigate interpopulation trophic niches and ontogenetic shifts.
Jiao Qin, Fengming Liu, Bjorn Victor Schmidt, Zhuoxin Sun, Lingwei Kong, Yunrong Yan   +5 more
openaire   +2 more sources

Trophic niche width, offspring condition and immunity in a raptor species

Oecologia, 2013
Strategies developed by organisms to maximize foraging efficiency have a strong influence on fitness. The way in which the range of food resources is exploited has served to classify species, populations and individuals from more specialist (narrow trophic niche) to more generalist (broad trophic niche).
Juan, Navarro-López, Pablo, Vergara, Juan A, Fargallo   +2 more
openaire   +2 more sources

The tri‐trophic niche concept and adaptive radiation of phytophagous insects

Ecology Letters, 2005
AbstractA conceptual divide exists between ecological and evolutionary approaches to understanding adaptive radiation, although the phenomenon is inherently both ecological and evolutionary. This divide is evident in studies of phytophagous insects, a highly diverse group that has been frequently investigated with the implicit or explicit goal of ...
Singer, Michael S., Stireman, John O., III   +1 more
openaire   +3 more sources