Results 51 to 60 of about 1,722,837 (303)

Area, isolation, disturbance and age effects on species richness of summer waterbirds in post-mining subsidence lakes, Anhui, China

open access: yesAvian Research, 2018
Background The species–area relationship is one of the best documented patterns in community ecology. Factors influencing species–area relationship are still not well understood.
Jin-Ming Zhao, Li-Zhi Zhou
doaj   +1 more source

Global priorities for conservation across multiple dimensions of mammalian diversity [PDF]

open access: yes, 2017
Conservation priorities that are based on species distribution, endemism, and vulnerability may underrepresent biologically unique species as well as their functional roles and evolutionary histories.
Brum, F. T.   +8 more
core   +1 more source

Species–area relationships in continuous vegetation: Evidence from Palaearctic grasslands [PDF]

open access: yesJournal of Biogeography, 2019
AbstractAimSpecies–area relationships (SARs) are fundamental scaling laws in ecology although their shape is still disputed. At larger areas, power laws best represent SARs. Yet, it remains unclear whether SARs follow other shapes at finer spatial grains in continuous vegetation.
Jürgen Dengler   +44 more
openaire   +15 more sources

Hummingbird–Plant Interactions Are More Specialized in Forest Compared to Coffee Plantations

open access: yesDiversity, 2020
Deforestation transforms habitats, displacing vertebrates and the other dimensions of biodiversity they support through their interactions. Few empirical studies have quantified the effect deforestation has on vertebrate–pollinator interaction networks ...
Beth M. L. Morrison, Chase D. Mendenhall
doaj   +1 more source

Plot size matters: Toward comparable species richness estimates across plot‐based inventories

open access: yesEcology and Evolution, 2022
To understand the state and trends in biodiversity beyond the scope of monitoring programs, biodiversity indicators must be comparable across inventories. Species richness (SR) is one of the most widely used biodiversity indicators.
Jeanne Portier   +8 more
doaj   +1 more source

Learning sequences of rules using classifier systems with tags [PDF]

open access: yes, 1999
IEEE International Conference on Systems, Man, and Cybernetics. Tokyo, 12-15 October 1999.The objective of this paper was to obtain an encoding structure that would allow the genetic evolution of rules in such a manner that the number of rules and ...
Isasi, Pedro   +3 more
core   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

The impact of the species-area relationship on estimates of paleodiversity. [PDF]

open access: yesPLoS Biology, 2005
Estimates of paleodiversity patterns through time have relied on datasets that lump taxonomic occurrences from geographic areas of varying size per interval of time. In essence, such estimates assume that the species-area effect, whereby more species are
Anthony D Barnosky   +2 more
doaj   +2 more sources

Bryophyte richness of soil islands on rocky outcrops is not driven by island size or habitat heterogeneity

open access: yesActa Botânica Brasílica, 2018
The species-area relationship (SAR) is one of the oldest and most studied ecological models, having even served as the foundation of the Theory of Island Biogeography.
Joan Bruno Silva   +3 more
doaj   +1 more source

Spatial aggregation and the species–area relationship across scales [PDF]

open access: yesJournal of Theoretical Biology, 2012
16 pages, 5 ...
GRILLI, JACOPO   +3 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy