Results 101 to 110 of about 3,262 (285)
Altitudinal diversity gradients and the theory of island biogeography - an explanation [PDF]
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
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
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
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]
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
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 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
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
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
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

