Results 21 to 30 of about 4,473,819 (314)
How do biodiversity patterns of river animals emerge from the distributions of common and rare species? [PDF]
We studied the patterns of commonness and rarity for one vertebrate (fish) and four freshwater insect taxa (Ephemeroptera, Plecoptera, Trichoptera and Coleoptera) in southwestern France (57,000 km²), and we analysed the relationships between the location
Cucherousset, Julien +3 more
core +1 more source
Predicting microbial species richness [PDF]
Microorganisms are spectacularly diverse phylogenetically, but available estimates of their species richness are vague and problematic. For example, for comparable environments, the estimated numbers of species range from a few dozen or hundreds to tens of thousands and even half a million.
Sun-Hee, Hong +3 more
openaire +2 more sources
Does residence time affect responses of alien species richness to environmental and spatial processes? [PDF]
One of the most robust emerging generalisations in invasion biology is that the probability of invasion increases with the time since introduction (residence time). We analysed the spatial distribution of alien vascular plant species in a region of north-
Dainese,Matteo +5 more
core +1 more source
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
Vascular plant species richness and bioindication predict multi‐taxon species richness [PDF]
Abstract Plants regulate soils and microclimate, provide substrate for heterotrophic taxa, are easy to observe and identify and have a stable taxonomy, which strongly justifies their use as indicators in monitoring and conservation.
Ane Kirstine Brunbjerg +12 more
openaire +4 more sources
Despite the numerous studies on the large-scale patterns of species richness, the spatial variation and determinants of species richness for the alpine plants are still an outstanding question and critical to future biodiversity conservation.
Lian Liu +9 more
doaj +1 more source
Testing the causal mechanism of the peninsular effect in passerine birds from South Korea.
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
A Truncation Model for Estimating Species Richness [PDF]
Abstract We propose a truncation model for the abundance distribution in species richness estimation. This model is inherently semiparametric and incorporates an unknown truncation threshold between rare and abundant observations. Using the conditional likelihood, we derive a class of estimators for the parameters in this model by ...
Koladjo, Babagnidé François +2 more
openaire +3 more sources
Estimating the Richness of a Population When the Maximum Number of Classes Is Fixed: A Nonparametric Solution to an Archaeological Problem [PDF]
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 +2 more sources
Recovery of plant species richness during long-term fertilization of a species-rich grassland [PDF]
Nutrient enrichment of habitats (eutrophication) is considered to be one of the main causes of plant diversity decline worldwide. Several experiments have shown a rapid loss of species in the first years after fertilization started. However, little is known about changes in species richness in the long term.
Pierik, M. +4 more
openaire +2 more sources

