Results 1 to 10 of about 190,405 (306)

Food Niche Overlap of Avian Predators (Falconiformes, Strigiformes) in a Field and Forest Mosaic in Central Poland [PDF]

open access: yesAnimals, 2021
Food niche overlap statistics are a common way to show competition for food resources in a group of animals. Niche breadths of various species are very variable and their diet composition changes reflecting prey availability. The aim of this study was to
Jakub Gryz, Dagny Krauze-Gryz
doaj   +2 more sources

Niche overlap across landscape variability in summer between two large herbivores using eDNA metabarcoding. [PDF]

open access: yesPLoS ONE
Understanding the relationship between a species feeding strategy and its environment (trophic ecology) is critical to assess environmental requirements and improve management policies. However, measuring trophic interactions remains challenging.
Eduard Mas-Carrió   +3 more
doaj   +2 more sources

Effects of environmental factors and intraspecific niche overlap on the body and ecological characteristics of red-tongued pit vipers (Gloydius ussuriensis) [PDF]

open access: yesScientific Reports, 2023
The body condition of a snake species provides important physiological, morphological, and ecological information that elucidates its habits, life cycle, and competitive relationships.
Min Seock Do   +5 more
doaj   +2 more sources

Modeling habitat distribution and niche overlap of Asian horseshoe crabs: Implications for conservation. [PDF]

open access: yesPLoS ONE
Asian horseshoe crabs are ancient organisms essential for the balance of marine ecosystems. However, detailed information on their ecology and the environmental factors influencing their distribution remains limited.
Jian Liao   +10 more
doaj   +2 more sources

Trophic niche overlap between sympatric harbour seals (Phoca vitulina) and grey seals (Halichoerus grypus) at the southern limit of their European range (Eastern English Channel) [PDF]

open access: yesEcology and Evolution, 2021
Sympatric harbour (Phoca vitulina) and grey seals (Halichoerus grypus) are increasingly considered potential competitors, especially since recent local declines in harbour seal numbers while grey seal numbers remained stable or increased at their ...
Yann Planque   +5 more
doaj   +2 more sources

Niche characteristics of lichen in Dabancheng mountainous area, Urumqi

open access: yesGuangxi Zhiwu, 2023
In order to reveal the status of habitat resource utilization and the degree of competition among lichens in Dabancheng mountainous areas. In this work, 30 plots were sampled in the field and the species cover data of the plots were investigated, and the
Zuosen LI, Anwar TUMUR
doaj   +1 more source

Isotope niche dimension and trophic overlap between bigheaded carps and native filter-feeding fish in the lower Missouri River, USA. [PDF]

open access: yesPLoS ONE, 2018
Stable carbon and nitrogen isotope values (δ13C and δ15N) were used to evaluate trophic niche overlap between two filter-feeding fishes (known together as bigheaded carp) native to China, silver carp (Hypophthalmichthys molitrix) and bighead carp ...
Jianzhu Wang   +4 more
doaj   +1 more source

Measures of Niche Overlap, II [PDF]

open access: yesMathematical Medicine and Biology, 1986
In part I, see the preceding review, Zbl 0633.92017, a number of properties that a reasonable measure of overlap might be expected to possess are proposed in the form of axioms, and their motivations and consequences are also discussed from a biological viewpoint.
Gerrard, R, Barbour, A D
openaire   +3 more sources

Patterns of dietary niche breadth and overlap are maintained for two closely related carnivores across broad geographic scales

open access: yesFrontiers in Ecology and Evolution, 2022
Ecological studies investigating niche breadth and overlap often have limited spatial and temporal scale, preventing generalizations across varying environments and communities.
Jenilee Gobin   +4 more
doaj   +1 more source

Measures of Niche Overlap, I [PDF]

open access: yesMathematical Medicine and Biology, 1986
Many methods of measuring niche overlap have been proposed by several authors, e.g. \textit{O. Renkonen} [Ann. Zool. Soc. Zool. Bot. Fenn Venano 6, 1-231 (1938)], \textit{M. Morisita} [Mem. Fac. Kyushu, Univ. Ser. E 3, 65-80 (1959)] and \textit{H. Horn} [Am. Nat. 100, 419-424 (1966)])].
Schatzmann, E, Gerrard, R, Barbour, A D
openaire   +4 more sources

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