Results 41 to 50 of about 52,051 (301)

Climatic niche comparison across a cryptic species complex [PDF]

open access: yesPeerJ, 2019
According to current molecular evidence, the Chionaspis pinifoliae heterophyllae species complex has been recognized as 10 cryptic species. In this study, we construct potential distribution maps for seven cryptic species based on climatic variables ...
Qing Zhao, Hufang Zhang, Jiufeng Wei
doaj   +2 more sources

At home in the tropics: seasonal niche-tracking by the Yellow-green Vireo, Vireo flavoviridis, an intratropical migrant

open access: yesRevista Mexicana de Biodiversidad, 2023
Migratory birds move geographically by tracking specific climatic conditions through time. However, we lack information about the climatic conditions birds are tracking, especially in intratropical migrants, whose movements are contained inside the ...
Alejandra Ochoa-Gonzále   +4 more
doaj   +1 more source

Spatial and ontogenetic variation in isotopic niche among recovering fish communities revealed by Bayesian modeling.

open access: yesPLoS ONE, 2019
Exploitation and changing ocean conditions have resulted in altered species interactions and varied population dynamics within marine fish communities off northeast Newfoundland and southern Labrador, Canada.
Kyle J Krumsick, Jonathan A D Fisher
doaj   +1 more source

Ecological Niche and Interspecific Association of Plant Communities in Alpine Desertification Grasslands: A Case Study of Qinghai Lake Basin

open access: yesPlants, 2022
The study of niche and interspecific relationships is one of the classical ecological theories. We set up four desertification gradients. The “Levins” and “Pianka” method were used to calculate the species’ niche breadth and niche overlap.
Ying Hu   +6 more
doaj   +1 more source

The niche overlap statistics - I statistic. [PDF]

open access: yes, 2014
The niche overlap statistics - I statistic.
Dariusz L. Szlachetko (571846)   +6 more
core   +1 more source

The glacial niche overlap statistic - I statistic. [PDF]

open access: yes, 2014
The glacial niche overlap statistic - I statistic.
Dariusz L. Szlachetko (571846)   +6 more
core   +1 more source

Niche of woody plant populations in Picea purpurea community in the upper Taohe River

open access: yesEcological Indicators
The niche of plant populations is affected by the environment, species characteristics and anthropogenic disturbance. Picea purpurea, as a major constructive species in the northeastern Qinghai-Tibetan Plateau, had been severely damaged.
Yang Zhao   +5 more
doaj   +1 more source

Niche overlap among guanaco lineages. [PDF]

open access: yes, 2013
Similarity (I), Schoener’s distance (D), and Relative Rank index indicate similarity between niche overlap. Range overlap is based on ranges where 0.25 threshold of suitability is assumed.
Benito A. González (393011)   +3 more
core   +1 more source

The relationship between niche breadth and phylogenetic characteristics of eight species of rhubarb on the Qinghai‐Tibet Plateau, Asia

open access: yesEcology and Evolution
The relationship between spatial distribution and phylogeny has been widely debated in recent decades. To understand biogeographic and evolutionary history relationships and to explore the interspecific similarities and phylogenetic correlations of niche
Kaiyang Chen   +3 more
doaj   +1 more source

The α-minimum convex polygon as a relevant tool for isotopic niche statistics

open access: yesEcological Indicators, 2021
Ecological (isotopic) niche refers to a surface in a two-dimensional space, where the axes correspond to environmental variables that reflect values of stable isotopes incorporated in an animal's tissues.
Pauline Fey   +2 more
doaj   +1 more source

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