Introduction Species are widely considered a fundamental unit in biology, and this explains to a large extent the continuous efforts to estimate species numbers, both globally and at various taxonomic and geographic levels ( Caley et al., 2014 ; Larsen et al., 2017 ). Speciesrichness is a key
. Species-richness was estimated on the basis of the species accumulation curve (e.g. Colwell & Coddington, 1994 ). In a species-accumulation curve, the cumulative number of species is plotted against a measure of cumulative sampling effort. As sampling-effort increases, the rate at which new species are
speciesrichness in mediterranean ecosystems of Australia Mediterranean-type Ecosystems. Specht R.L. Kluwer Academic Publishers Dordrecht 1988 149 155 A Data Source Book Specht R.L. Clifford H.T. The invasion of higher plants into soil seed banks: control by water and nutrients Biogeography of
Amphibia-Reptilia 30 (2009): 151-171 Biogeography of Chilean herpetofauna: distributional patterns of speciesrichness and endemism Marcela A. Vidal 1,2 , ∗ , Eduardo R. Soto 2 , Alberto Veloso 2 Abstract. We analyze the geographic distribution pattern of Chilean amphibian and reptile species
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Conroy M.J. Noon B.R. Mapping of speciesrichness for conservation of biological diversity: conceptual and methodological issues Ecol. Appl 1996 6 763 773
Darlington P.J. Jr. Zoogeography: The geographical
Nematology , 2005, Vol. 7(4), 543-575 The Thelastomatoidea (Nematoda: Oxyurida) of two sympatric Panesthiinae (Insecta: Blattodea) from southeastern Queensland, Australia: taxonomy, speciesrichness and host specificity Aaron R. J EX 1 , ∗ , Margaret A. S CHNEIDER 2 , Harley A. R OSE 3 and Tom
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Spatial patterns in speciesrichness and priority areas for conservation of anurans in the Cerrado region, Central Brazil José Alexandre F. Diniz-Filho 1 , Luis M. Bini 1 , Cleiber M. Vieira 2 , Márcia C. de Souza 3 , Rogério P. Bastos 1 , Divino Brandão 1 , Leandro G. Oliveira 1 1 Departamento
Parasitoid assemblages infesting Yponomeuta species in the Netherlands were investigated. Parasitoid species richness and community composition were related to host species, habitat, temporal and spatial variation. Both community structure and species richness did not differ among habitats. There was no significant difference in species richness between years (1994 and 1995) but there was a significant difference in community composition. Community composition and species richness both differed among host species, although this latter result was solely due to the host species Y. evonymellus. There was no significant relationship between community similarity and distance. These results indicate that the parasitoids of the moth genus Yponomeuta in the Netherlands appear to form a spatially stable, but temporally variable community. Most of the variation in community structure was, however, related to the host species. The marked difference in parasitoid species richness and community composition of Y. evonymellus when compared to the other species warrants further study.
, the entocytherids are an interesting group to analyse issues on host specificity in symbiotic interactions.
Georeferenced databases with large-scale geographic ranges are essential in testing one of the most recognised patterns in biogeography: the latitudinal gradient of speciesrichness, which