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Dietary overlap and coexistence of chironomid larvae in a detritus-based stream
Hydrobiologia, 1997Of the seven orders of macroinvertebrates that make up the DuffinCreek riffle community, the Chironomidae were the dominant taxonmaking up, numerically, 25.8–53.7% of the total fauna. Cricotopus sp., ?Rheosmittia sp. and a species from the Eukiefferiella brehmi group predominated whereas Parametriocnemus sp., Thienemanniella sp., Tanytarsussp., and ...
Annette F. Tavares-Cromar +1 more
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Feeding ecology of mackerel and dietary overlap with herring in Icelandic waters
Marine Biology Research, 2015ABSTRACTThe Northeast Atlantic mackerel (Scomber scombrus) has been extending its summer feeding distribution north and west, including around Iceland, since around 2006. The objective of this study is to quantify the weight gain and total food consumption of mackerel and to evaluate the food competition between mackerel and herring (Clupea harengus ...
Guðmundur J. Óskarsson +3 more
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Spatial and dietary overlap in the Georges Bank groundfish community
Canadian Journal of Fisheries and Aquatic Sciences, 2000Patterns in spatial and trophic resource partitioning in the fish community of the Georges Bank region are identified, accounting for size-based changes in diets. During autumn and spring, this community is divided into geographic assemblages of species that have high spatial overlap.
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Dietary Overlap among Cattle and Cervids in Northern Idaho Forests
Journal of Range Management, 1996Botanical composition of diets and dietary overlap were investigated among free-ranging cattle (Bos taurus), Rocky Mountain elk (Cervus elaphus nelsoni), and white-tailed deer (Odocoileus virginianus) in coniferous forests of northern Idaho. The study was conducted within the Abies grandis/Clintonia uniflora (grand fir/queencup beadlily) and Thuja ...
James L. Kingery +2 more
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Dietary overlap of two sympatric African mongoose species in an urban environment
Mammalia, 2019AbstractUrbanisation creates challenges and opportunities for wildlife. Globally, small carnivores have colonised urban spaces, but we do not know whether or how sympatric carnivores partition resources in order to co-exist. We studied the diet and degree of dietary overlap of two sympatric herpestid mongooses – yellow,Cynictis penicillata, and slender,
Nadine Cronk, Neville Pillay
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Dietary Niche Overlap and Size Partitioning in Sympatric Varanid Lizards
Herpetologica, 2011Abstract Dietary separation is an important means of differentiating ecological niches and avoiding interspecific competition between sympatric species. Congeneric species that overlap in geographic distribution provide an excellent opportunity to explore the mechanisms of coexistence. Two monitor lizards, Varanus gouldii and V. rosenbergi (Varanidae),
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Dietary overlap among ruminants, geese, and lemmings of Wrangel Island in summer
Russian Journal of Ecology, 2017Trends in the dynamics of herbivore community related to trophic competition in summer have been analyzed on Wrangel Island. The results show that the trophic spectra overlap considerably, resources are partitioned on the principle “weak competitors after strong competitors,” and community dynamics in the absence of extermination depend on specific ...
I. S. Sheremetyev +2 more
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Dietary overlap and potential competition in a dynamic ungulate community in Northwestern Canada
The Journal of Wildlife Management, 2015ABSTRACTThe potential for interspecific competition for food resources is a key consideration when newly introduced ungulates occupy a shared range with resident native species. Management plans in Yukon, Canada, for reintroduced bison (Bison bison) and introduced elk (Cervus canadensis) called for an assessment of competition for food resources ...
Thomas S. Jung +2 more
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Dietary overlap of invertivorous fishes and macroinvertebrates in the Gila River, New Mexico
The Southwestern Naturalist, 2014The diets of stoneflies (Perlodidae) and hellgrammites (Corydalidae) from the Gila River, New Mexico, were quantified and compared to diets of three native fishes that also occupy riffle habitats along with stoneflies and hellgrammites: speckled dace (Rhinichthys osculus); longfin dace (Agosia chrysogaster); desert sucker (Catostomus clarkii).
Josiah J. Maine +2 more
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Food Habits and Dietary Overlap in a Phyllostomid Bat Assemblage in the Pantanal of Brazil
Acta Chiropterologica, 2012(Uploaded by Plazi for the Bat Literature Project) Multiple studies at a local scale on food items consumed by coexisting species are necessary to determine patterns of resource partitioning among phyllostomid bats. Here we report the food items consumed by 11 phyllostomid bats and the similarity among the diets of the six most abundant species in the ...
Munin, Roberto Lobo +2 more
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