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Trophic niche overlap among Neotropical carnivores in a silvicultural landscape
Mammalia, 2023Abstract 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, Cerdocyon thous, Lycalopex vetulus, and Puma concolor) follow the prediction of ...
Ana Beatriz de Almeida +6 more
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Trophic niche overlap between native and non-native fishes
Hydrobiologia, 2014In 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 +2 more
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Trophic niche width and overlap of two sympatric gulls in the southwestern mediterranean
Oecologia, 1997The 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
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Spatiotemporal patterns in trophic niche overlap among five salmonines in Lake Michigan, USA
Canadian Journal of Fisheries and Aquatic Sciences, 2020Native lake trout (Salvelinus namaycush) and introduced Chinook salmon (Oncorhynchus tshawytscha), coho salmon (Oncorhynchus kisutch), steelhead (Oncorhynchus mykiss), and brown trout (Salmo trutta) are major predators in Lake Michigan’s complex ecosystem and collectively support a valuable recreational fishery, but declines in their primary prey ...
Kornis, Matthew S. +3 more
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Diet and trophic niche overlap of two ranid species in northern Italy
Italian Journal of Zoology, 2000Abstract 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
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Overlapping trophic niches among co‐occurring amphipods from a cryptic species complex
Freshwater Biology, 2017Abstract Ecological differences among species are usually associated with phenotypic differences that enable species to lessen interspecific competition. Many cryptic species co‐occur in communities, thus raising the question of their ecological equivalency.
Kaven Dionne +2 more
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Anthropogenic Disturbance Mediates Trophic Niche Overlap Between Sympatric Generalist Predators
Integrative ZoologyAbstractHuman 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 +3 more
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High trophic niche overlap within the aquatic carnivore guild in vernal ponds
2022The underlying mechanisms shaping niche size and overlap within and between species are crucial for understanding species coexistence and community assembly. The hunting strategy of and the competition between predators shape their diets, but many species can adjust their niches via trophic or microhabitat differentiation to minimize foraging ...
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Peri-urban systems alter trophic niche size and overlap in coastal bird species
2023Foraging and stable isotope data used in analyses.
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Environmental Science and Pollution Research
Benthic amphipod feeding groups are a well-established trophic classification that is mostly based on field observations and laboratory tests and are used in ecological studies to monitor the ecological state of benthic ecosystems. Globally, carbon and nitrogen stable isotope ratio investigations have provided confirmation of, and novel insights into ...
Tatiparthi Srinivas +2 more
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Benthic amphipod feeding groups are a well-established trophic classification that is mostly based on field observations and laboratory tests and are used in ecological studies to monitor the ecological state of benthic ecosystems. Globally, carbon and nitrogen stable isotope ratio investigations have provided confirmation of, and novel insights into ...
Tatiparthi Srinivas +2 more
openaire +2 more sources