Results 31 to 40 of about 483,947 (304)

Using abundance data to assess the relative role of sampling biases and evolutionary radiations in Upper Muschelkalk ammonoids [PDF]

open access: yes, 2011
The Middle Triassic ammonoid genus Ceratites diversified spectacularly within the Germanic Muschelkalk Basin during the Anisian/Ladian (244–232 Mya). Previous studies have interpreted this diversification as a sequence of rapid, endemic radiations from a
Kiessling, Wolfgang   +1 more
core   +1 more source

Recovery of plant species richness during long-term fertilization of a species-rich grassland [PDF]

open access: yesEcology, 2011
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

The enigma of soil animal species diversity revisited: the role of small-scale heterogeneity. [PDF]

open access: yesPLoS ONE, 2010
"The enigma of soil animal species diversity" was the title of a popular article by J. M. Anderson published in 1975. In that paper, Anderson provided insights on the great richness of species found in soils, but emphasized that the mechanisms ...
Uffe N Nielsen   +5 more
doaj   +1 more source

Diversity of Social Wasps in the Campus of the “Universidade Federal de Viçosa” in Viçosa, Minas Gerais State, Brazil

open access: yesSociobiology, 2014
Social wasps can be used as ecological indicators. However, the diversity of species of this group in Minas Gerais State, Brazil, is poorly studied, especially in anthropized environments.
José Cola Zanuncio
doaj   +1 more source

Mammal predator and prey species richness are strongly linked at macroscales [PDF]

open access: yes, 2013
Predator-prey interactions play an important role for species composition and community dynamics at local scales, but their importance in shaping large-scale gradients of species richness remains unexplored.
Dalby, Lars   +8 more
core   +1 more source

Facilitation beyond species richness [PDF]

open access: yesJournal of Ecology, 2018
AbstractFacilitation studies have previously focused on the effects of plant–plant interactions on species richness and, more recently, on functional traits or phylogenetic aspects. Little is known, however, about the simultaneous effects that facilitation have on overall biodiversity, jointly considering taxonomic, functional and phylogenetic ...
Julia Vega‐Álvarez   +2 more
openaire   +1 more source

Can species richness be maintained in logged endemic Acacia Heterophylla forests (Reunion Island, Indian Ocean) ? [PDF]

open access: yes, 2007
It is assumed that forests can serve multiple uses, including wood production and maintenance of high biodiversity level. We tested this hypothesis by studying eradication methods of invasive plants currently implemented in exploited endemic Acacia ...
Baret, Stéphane   +5 more
core   +1 more source

Bird species richness is associated with phylogenetic relatedness, plant species richness, and altitudinal range in Inner Mongolia

open access: yesEcology and Evolution, 2018
Bird species richness is mediated by local, regional, and historical factors, for example, competition, environmental heterogeneity, contemporary, and historical climate.
Chenxia Liang   +6 more
doaj   +1 more source

Evaluating Multiple Arthropod Taxa as Indicators of Invertebrate Diversity in Old Fields [PDF]

open access: yes, 2018
Biodiversity, often quantified by species richness, is commonly used to evaluate and monitor the health of ecosystems and as a tool for conservation planning. The use of one or more focal taxa as surrogates or indicators of larger taxonomic diversity can
Brayshaw, Alyssa C   +5 more
core   +3 more sources

Evenness alters the positive effect of species richness on community drought resistance via changing complementarity

open access: yesEcological Indicators, 2021
Biodiversity loss may decrease the resistance of ecosystems to disturbance. While many studies have tested the effects of species richness on the ability of communities to resist disturbance, few have considered the role of species evenness.
Xiao-Yan Wang   +5 more
doaj   +1 more source

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