Results 111 to 120 of about 65,254 (294)

Dietary Niche Shifts of Multiple Marine Predators under Varying Prey Availability on the Northeast Newfoundland Coast

open access: yesFrontiers in Marine Science, 2017
Understanding species interactions among top marine predators and interactions with their prey can provide important insight into community-level responses to changing prey availability and the role of apex predators as indicators of ecosystem change. On
Julia Gulka   +5 more
doaj   +1 more source

Species assembly in model ecosystems, II: Results of the assembly process [PDF]

open access: yes, 2010
In the companion paper of this set (Capitan and Cuesta, 2010) we have developed a full analytical treatment of the model of species assembly introduced in Capitan et al. (2009).
Bastolla   +30 more
core   +6 more sources

Powerful yet challenging: mechanistic niche models for predicting invasive species potential distribution under climate change

open access: yesEcography, EarlyView.
Risk assessments of invasive species present one of the most challenging applications of species distribution models (SDMs) due to the fundamental issues of distributional disequilibrium, niche changes, and truncation. Invasive species often occupy only a fraction of their potential environmental and geographic ranges, as their spatiotemporal dynamics ...
Erola Fenollosa   +4 more
wiley   +1 more source

Competition and Environmental Stress Impacts on Trophic Performance of Three Sympatric Insectivorous Lizard Species in Eastern Spain

open access: yesSci
Trophic ecology is an important aspect to consider when studying interactions between species, especially in ecologically similar species. We studied the trophic ecology of three sympatric insectivorous lizards in a dune system in the Eastern Iberian ...
Robby M. Drechsler, Juan S. Monrós
doaj   +1 more source

Intrapopulation niche partitioning in a generalist predator limits food web connectivity [PDF]

open access: yes, 2009
Predators are increasingly recognized as key elements in food webs because of their ability to link the fluxes of nutrients and energy between spatially separated food chains.
Eklöv, Peter   +2 more
core   +1 more source

Temperature variability homogenized thermal responses in an ectotherm community along a European longitudinal gradient

open access: yesEcography, EarlyView.
Climate change, through rising temperatures, greater variability, and more frequent extremes, is reshaping insect phenology and thermal niches, with profound effects for pest outbreaks. Predicting these impacts requires a clear understanding of species and communities' responses across geographic gradients.
Ruining Li   +5 more
wiley   +1 more source

Feeding habits of otters living on three moors in the Pannonian ecoregion (Hungary) [PDF]

open access: yes, 2006
Diet composition and feeding habits of Eurasian otters (Lutra lutra) living on three moors (Balata, Nagyberek and Feherviz) in Hungary were studied over two years using spraint analysis (n = 199, 503 and 3 15 samples from the three moors, respectively ...
Lanszki, József   +1 more
core  

Stable isotopes reveal differences in diet among reed bunting subspecies that vary in bill size [PDF]

open access: yes, 2016
Reed bunting Emberiza schoeniclus subspecies vary considerably in bill size and shape and seem to be at an early stage of speciation, in which bill might be indirectly causing reproductive isolation.
de Oliveira Gordinho, Luís   +5 more
core   +2 more sources

Physiology–microhabitat matching may help organisms cope with the thermal and hydric challenges under climate change: a tale of two lizards

open access: yesEcography, EarlyView.
Climate change is significantly affecting biodiversity, and organisms that depend on external temperature – such as ectotherms – are particularly vulnerable to these effects. Microhabitats provide refuge for species, thereby reducing exposure to thermal and hydric stress under climate change.
Carolina Reyes‐ Puig   +3 more
wiley   +1 more source

Feeding Biology of Pectoral Sandpiper Calidris Melanotos (Birds: Scolopacidae) In the Floodplain of the Paraná River, Argentina [PDF]

open access: yes, 2010
This study focuses upon the nourishing biology of the Pectoral Sandpiper at the floodplain of the Paraná river during  spring and summer. Trophic spectrum, feeding selectivity and efficiency, extent of the trophic niche, circadian rhythm of feeding ...
Bagnarol, Mónica   +4 more
core  

Home - About - Disclaimer - Privacy