Results 1 to 10 of about 4,967,394 (361)

Evidence that species richness begets species richness

open access: yesJournal of Biogeography, 2023
AbstractAimThe 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. Species richness variability may be amplified by biotic feedbacks that promote species
Michael D. Cramer, G. Anthony Verboom
openaire   +2 more sources

Bats, Pathogens, and Species Richness [PDF]

open access: yesPathogens, 2021
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
doaj   +4 more sources

Generalized Species Richness Indices for Diversity

open access: yesEntropy, 2022
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
doaj   +3 more sources

Estimating species richness using environmental DNA [PDF]

open access: yesEcology and Evolution, 2016
AbstractThe foundation for any ecological study and for the effective management of biodiversity in natural systems requires knowing what species are present in an ecosystem. We assessed fish communities in a stream using two methods, depletion‐based electrofishing and environmental DNA metabarcoding (eDNA) from water samples, to test the hypothesis ...
Olds, Brett P.   +12 more
openaire   +5 more sources

ANTS (Hymenoptera: Formicidae) WHICH WERE FOUND AT BENDOSARI PARK, SALATIGA

open access: yesAgric, 2021
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
doaj   +1 more source

Global warming is causing a more pronounced dip in marine species richness around the equator

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2021
Significance We use distribution data on 48,661 species to show that marine biodiversity has been responding to climate warming at a global scale. We show that marine species richness levels off or declines in latitudinal bands with average annual sea ...
Chhaya Chaudhary   +3 more
semanticscholar   +1 more source

Global patterns and drivers of alpine plant species richness

open access: yesGlobal Ecology and Biogeography, 2021
Aim: Alpine ecosystems differ in area, macroenvironment and biogeographical history across the Earth, but the relationship between these factors and plant species richness is still unexplored. Here, we assess the global patterns of plant species richness
R. Testolin   +31 more
semanticscholar   +1 more source

Global Patterns of Earwig Species Richness

open access: yesDiversity, 2022
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
doaj   +1 more source

Worldwide occurrence records suggest a global decline in bee species richness

open access: yes, 2021
Summary Wild and managed bees are key pollinators, ensuring or enhancing the reproduction of a large fraction of the world's wild flowering plants and the yield of ∼85% of all cultivated crops.
E. Zattara, M. Aizen
semanticscholar   +1 more source

Fish Species Richness in Polish Lakes

open access: yesDiversity, 2023
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
doaj   +1 more source

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