Results 21 to 30 of about 233,597 (315)
Estimating the spatial and temporal distribution of species richness within Sequoia and Kings Canyon National Parks. [PDF]
Evidence for significant losses of species richness or biodiversity, even within protected natural areas, is mounting. Managers are increasingly being asked to monitor biodiversity, yet estimating biodiversity is often prohibitively expensive.
Steve Wathen +3 more
doaj +1 more source
Numerous avian studies have emphasized the importance of natural/semi-natural elements, especially green spaces to conserve avian diversity in a city.
Myung-Bok Lee +7 more
doaj +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
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
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
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
Main predictors of periphyton species richness depend on adherence strategy and cell size.
Periphytic algae are important components of aquatic ecosystems. However, the factors driving periphyton species richness variation remain largely unexplored.
Vanessa Majewski Algarte +8 more
doaj +1 more source
Latitudinal gradient in Gnomeskelus species richness [PDF]
The Tropical Conservativism Hypothesis suggests processes of speciation, extinction and dispersal resulted in higher species richness at the tropics and declined away from the equator. Biogeographical Conservativism Hypothesis suggests that the processes
Mark Cooper
doaj
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
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

