Results 1 to 10 of about 233,597 (315)

Species richness-environment relationships of European arthropods at two spatial grains: habitats and countries [PDF]

open access: yes, 2012
We study how species richness of arthropods relates to theories concerning net primary productivity, ambient energy, water-energy dynamics and spatial environmental heterogeneity.
Xavier Espadaler   +32 more
core   +1 more source

A direct comparison of the effects and mechanisms between species richness and genotype richness in a dominant species on multiple ecosystem functions

open access: yesEcology and Evolution, 2021
Both species (interspecific) richness and genotype (intraspecific) richness of dominant species have significant effects on ecosystem functioning directly or indirectly by regulating plant community functional structure.
Man Jiang   +9 more
doaj   +1 more source

Urbanization and Human Population Favor Species Richness of Alien Birds

open access: yesDiversity, 2020
Human activities like urbanization and agriculture affect spatial biodiversity patterns. The presence and activities of humans richly benefit alien species, but native species usually decline in human-impacted areas.
Maria Lazarina   +5 more
doaj   +1 more source

Mapping the species richness and composition of tropical forests from remotely sensed data with neural networks [PDF]

open access: yes, 2006
The understanding and management of biodiversity is often limited by a lack of data. Remote sensing has considerable potential as a source of data on biodiversity at spatial and temporal scales appropriate for biodiversity management.
Mark E.J. Cutler   +5 more
core   +1 more source

Comparative tests of ectoparasite species richness in seabirds [PDF]

open access: yes, 2007
Background: The diversity of parasites attacking a host varies substantially among different host species. Understanding the factors that explain these patterns of parasite diversity is critical to identifying the ecological principles underlying ...
Joseph Hughes   +5 more
core   +1 more source

Unsaturated fish assemblages in rivers of the North-Western France : potential consequences for species introductions

open access: yesKnowledge and Management of Aquatic Ecosystems, 1997
Introductions of freshwater fish into French rivers have been carried out with increasing frequency in the last decades. Thus, the potential impact of these introductions is of major concern for biologists and fishery managers. Knowledge of the degree of
BELKESSAM D., OBERDORFF T., HUGUENY B.
doaj   +1 more source

Energy Availability Factors Drive the Geographical Pattern of Tenebrionidae (Coleoptera) in the Arid and Semiarid Areas of China

open access: yesDiversity, 2022
Species richness is regarded as the core index of biogeography. Estimating the correlation between species richness and modern environmental factors will be of great significance for species conservation.
Yalin Li   +4 more
doaj   +1 more source

Testing the causal mechanism of the peninsular effect in passerine birds from South Korea.

open access: yesPLoS ONE, 2021
The peninsular effect is a geographical phenomenon that explains patterns of species richness. Given that spatial variation in species richness along a peninsular may be driven by multiple processes, we aimed to identify the sources of latitudinal ...
Jin-Yong Kim   +4 more
doaj   +1 more source

Estimating the Richness of a Population When the Maximum Number of Classes Is Fixed: A Nonparametric Solution to an Archaeological Problem [PDF]

open access: yes, 2012
Background: Estimating assemblage species or class richness from samples remains a challenging, but essential, goal. Though a variety of statistical tools for estimating species or class richness have been developed, they are all singly-bounded: assuming
Wen-Han Hwang   +15 more
core   +1 more source

Changes in plant species richness distribution in Tibetan alpine grasslands under different precipitation scenarios

open access: yesGlobal Ecology and Conservation, 2020
Species richness is the core of biodiversity-ecosystem functioning (BEF) research. Nevertheless, it is difficult to accurately predict changes in plant species richness under different climate scenarios, especially in alpine biomes.
Meng Li   +5 more
doaj   +1 more source

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