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A consistent terminology for quantifying species diversity?
A recent and thought-provoking paper draws attention to the lack of precision with which the terms alpha, beta, and gamma diversity are used and proposes three new terms in their place, which may improve the understanding of the different facets of species diversity. Expand
Species Diversity and Distribution in Presence‐Absence Matrices: Mathematical Relationships and Biological Implications
This work develops a theory and analyze data for North American mammals to interpret range‐diversity plots in which the species diversity of sites and the geographic range of species can be depicted simultaneously, and shows that such plots contain much more information than traditional correlative approaches do. Expand
Geographic range, turnover rate and the scaling of species diversity
The study of the relative roles of local and regional processes in determining the scaling of species diversity is a very active field in current ecology. The importance of species turnover and theExpand
Information about the species richness, composition, and distribution of mammals from Mexico is used for selecting priority areas for conservation and a conservation strategy that gives priority to areas of high concentration of endangered species and of non-endangered species with restricted distributions is suggested. Expand
The presence–absence matrix reloaded: the use and interpretation of range–diversity plots
Aim  A great deal of information on distribution and diversity can be extracted from presence–absence matrices (PAMs), the basic analytical tool of many biogeographic studies. This paper presentsExpand
Beta diversity and latitude in North American mammals: testing the hypothesis of covariation
The results show that the higher diversity of non-volant mammals in tropical areas of North America is a consequence of the increase in beta diversity and not of higher diversity at smaller scales, and suggest different causes for the latitudinal gradient of species diversity in the two groups that are ultimately determined by differences in the patterns of geographic distribution of the species. Expand
The pollution biology of aquatic oligochaetes
The pollution biology of aquatic oligochaetes is studied in detail in order to establish a clear picture of the phytochemical relationships between these animals and the environment. Expand
Heavy metal concentration in feathers of Little Egret (Egretta garzetta) nestlings in three coastal breeding colonies in Spain
In general, Little Egret nestlings from the three study sites had low levels of most of the measured metals, and thus the breeding populations did not appear to be at risk from heavy metal pollution. Expand
Continental and regional ranges of North American mammals: Rapoport's rule in real and null worlds
Aim  To assess the relationship between species richness and distribution within regions arranged along a latitudinal gradient we use the North American mammalian fauna as a study case for testingExpand
Sexual size dimorphism and determination of sex in Atlantic yellow-legged gulls Larus michahellis lusitanius from Northern Spain
It is concluded that the developed discriminant function can be applied to other Atlantic yellow-legged gull populations from Northern Iberian Peninsula, thus, providing a highly accurate, inexpensive and fast method for sexing in hand this Iberia gull subspecies. Expand