Results 11 to 20 of about 233,597 (315)
Bats, Pathogens, and Species Richness [PDF]
Bats carry many viruses, but this is not sufficient to threaten humans. Viruses must mutate to generate the ability to transfer to humans. A key factor is the diversity of species.
Frédéric Dutheil +2 more
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Generalized Species Richness Indices for Diversity
A generalized notion of species richness is introduced. The generalization embeds the popular index of species richness on the boundary of a family of diversity indices each of which is the number of species in the community after a small proportion of ...
Zhiyi Zhang
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SPECIES: An R Package for Species Richness Estimation
We introduce an R package SPECIES for species richness or diversity estimation. This package provides simple R functions to compute point and confidence interval estimates of species number from a few nonparametric and semi-parametric methods.
Ji-Ping Wang
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Evidence that species richness begets species richness
Abstract Aim The variability in regional species richness is determined by the balance between speciation, extinction, and migration, but the underlying causes of high species richness in some regions (e.g. tropics, Mediterranean ecosystems) are challenging to explain.
Michael D. Cramer, G. Anthony Verboom
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ANTS (Hymenoptera: Formicidae) WHICH WERE FOUND AT BENDOSARI PARK, SALATIGA
In food chain of terrestrial ecosystem, ants have roles as predator of other arthropods, eater of seed, nectar, plant and aphid secreation, and fragmenter of dead organic matter.
Yohanes Hendro Agus, Titus Septianjaya
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Global Patterns of Earwig Species Richness
One of the most investigated patterns in species diversity is the so-called latitudinal gradient, that is, a decrease in species richness from the equator to the poles.
Simone Fattorini
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Fish Species Richness in Polish Lakes
Global warming, eutrophication, fisheries overexploitation, species invasions, and habitat loss are the major threats to freshwater biodiversity. The aim of this study was to determine the species richness and diversity of fish in 535 Polish lakes of ...
Krystyna Kalinowska +4 more
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The objective of this article was to analyze the benefits of Agroforestry Systems (AFSs) association with natural regeneration promoted by family farmers of Tomé-Açu, Pará, Brazil.
Mário Oliveira Neto +2 more
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Efforts to assess and understand changes in plant diversity and ecosystem functioning focus on the analysis of taxonomic diversity. However, the resilience of ecosystems depends not only on species richness but also on the functions (responses and ...
Víctor Alexis Peña-Lara +5 more
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Abstract How the relationship between species richness and productivity changes along environmental gradients remains poorly understood. We examined the context dependency of complementarity processes underpinning this relationship (biotic feedbacks, resource partitioning and facilitation) using the framework of Grime's (1973) humped‐back model.
Richard Michalet +3 more
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