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Contrasting responses of two xerophilous land snails to fire and natural reforestation Naturalis
Santos, X.; Bros, V.; Ros, E..
Land-use change is considered the main disturbance in landscapestructure and composition, directly affecting faunal distributionand species richness worldwide. Wildfires and natural reforestation alter habitat structure in terms of vegetation cover and also in soil composition and moisture; these processes hence trigger habitat transformations that act as opposing forces at small spatial scales. We have explored the contrasting effects of wildfires and natural reforestation on two land-snail species of the genus Xerocrassa, which are endemic in the western Mediterranean. Snails were sampled in pine and Holm oak forest, stony bare slopes and burnt sites. Both species followed a similar pattern: they were present in more than 75% of the stony bare slope...
Tipo: Article / Letter to the editor Palavras-chave: Burnt areas; Mediterranean basin; Terrestrial gastropods; Wildfires; Leucothoid clade; Xerocrassa spp.; 42.73.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/424617
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NA phylogeny of Ryukyus Leucothoidae (Crustacea: Amphipoda) Naturalis
White, K.N.; Reimer, J.D..
Commensal leucothoid amphipods collected from sponges, ascidians, and coral rubble from the Ryukyu Archipelago, Japan, were investigated using nuclear 18S ribosomal DNA sequences. Analysis of sequences from 21 species in three genera supported the current morphological species designations and the separation of the family into two clades. Additionally, a possible new generic-level clade was identified and the separation of the genera Anamixis and Paranamixis was not supported. Our results demonstrate that host specificity appears to evolve rapidly in sibling species in this family.
Tipo: Article / Letter to the editor Palavras-chave: 18S rDNA; Anamixid clade; Host specificity; Japan; Leucothoid clade; 42.74.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/421560
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