Results 101 to 110 of about 3,262 (285)

Altitudinal diversity gradients and the theory of island biogeography - an explanation [PDF]

open access: yesPacific Conservation Biology, 2002
As part of a wider discussion of forest diversity in New Zealand, Ogden (1995) pointed out that the area available between any pair of contours on a conical mountain decreased with altitude in parallel with the decrease in species richness. This correlation is confounded with other environmental variables, such as temperature, which have been widely ...
openaire   +1 more source

Budding speciation, mitochondrial capture and introgression between surface and cave lineages in the Asellus aquaticus species complex

open access: yesCladistics, EarlyView.
Abstract Replicated pairs of ancestral and evolutionarily derived populations provide opportunities to test hypotheses about the deterministic laws of evolution. The Asellus aquaticus species complex is an invertebrate model system with several independent surface‐to‐cave transitions and a complicated and unresolved evolutionary history.
Peter Trontelj   +3 more
wiley   +1 more source

Prevalence of traded bird species in key biodiversity areas

open access: yesConservation Biology, EarlyView.
Abstract The use and trade of biodiversity involve tens of thousands of species that are exploited at a range of scales, intensities, and degrees of sustainability. As a result, some are highly threatened. Key biodiversity areas (KBAs) are sites of significance for the persistence of biodiversity identified nationally based on standardized criteria ...
Oscar Morton   +4 more
wiley   +1 more source

Island syndrome in rodents; a comparative study on island forms of the bank vole, Myodes glareolus

open access: yes, 2009
PhD 2009 QMIslands are extremely variable habitats, differing in shape, size, degree of isolation, geography and climate. They are often described as ‘natural laboratories’ and have proven beneficial for testing theories on evolution and adaptation ...
Hare, Emma J.
core  

The biogeography of the magnesian limestone grassland flora of east Durham and Tyne & Wear [PDF]

open access: yes, 1995
1. The remaining fragments of Magnesian Limestone Grassland (MLG) in East Durham and Tyne & Wear were surveyed. Biogeographical theory and climate modelling techniques are applied in order to provide insights for conservation policy 2.
Abbott, Heidi Jane
core  

Conservation implications of shifting habitat use in migrating insects: Selection patterns in a threatened damselfly show that season‐specific actions are needed

open access: yesInsect Conservation and Diversity, EarlyView.
Well‐preserved heathlands of NW Italy are the main overwintering habitat of Sympecma paedisca, while grassy margins in farmland are used only in summer and are avoided from autumn onwards. Grassy margins in farmland act as corridors during the species' migrations between its breeding (ricefields) and overwintering (lowland heathlands) grounds ...
Leonardo Siddi   +3 more
wiley   +1 more source

ECOLOGICAL BIOGEOGRAPHY: A REVIEW WITH EMPHASIS ON CONSERVATION AND THE NEUTRAL MODEL BIOGEOGRAFIA ECOLOGICA: REVISION CON ENFASIS EN CONSERVACION Y EL "MODELO NEUTRAL" BIOGEOGRAFIA ECOLOGICA: REVISION CON ENFASIS EN CONSERVACION Y EL "MODELO NATURAL"

open access: yesGayana, 2008
Ecological biogeography studies the factors that define the spatial distribution of species in the present time. This review summarises recent contributions on ecological biogeography. Most recent articles report environmental factors such as temperature,
Julián Monge-Nájera
doaj  

Demonstration of an instream flow model to accommodate a threatened tiger beetle in riverine dune habitat

open access: yesInsect Conservation and Diversity, EarlyView.
Burrows of the threatened Gibson's Big Sand Tiger Beetle in riverine dune habitats are susceptible to flooding through managed flows. HEC‐RAS modelling identified the flow thresholds above which flooding would occur for burrows and affect the beetle larvae. These findings provide instream flow guidelines for conserving this threatened species and guide
Iain D. Phillips   +2 more
wiley   +1 more source

Towards a genetic theory of island biogeography

open access: yesGlobal Ecology and Biogeography, 2023
Background: MacArthur and Wilson's theory of island biogeography has been a foundation for obtaining testable predictions from models of community assembly and for developing models that integrate across scales and disciplines. Historically, however, these developments have focused on integration across ecological and macroevolutionary scales and on ...
Overcast, Isaac   +24 more
openaire   +2 more sources

Multi-population comparison of resource exploitation by island foxes: implications for conservation

open access: yes, 2014
Imperiled island foxes are inherently resource-limited by their insular ecology. We examined food use on all 6 islands where they occur to assess resource exploitation patterns.
Van Horn Job, C.L.   +24 more
core   +1 more source

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