| 1. |
- Abraham, David, et al.
(författare)
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Molecular Phylogeny of the Subfamilies in Geometridae (Geometroidea: Lepidoptera)
- 2001
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Ingår i: Molecular Phylogenetics and Evolution. - Elsevier. - 1055-7903. ; 20:1, s. 65-77
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Tidskriftsartikel (refereegranskat)abstract
- Molecular sequence data from three gene fragments were used to examine critically a provisional phylogenetic classification based on morphological characters of the Geometridae, one of the most species-rich families of moths. The sister group relationship between Geometridae and Drepanidae gained further support from the molecular analysis, which was based on the ND1 mitochondrial gene and the first and second expansion segments of the 28S ribosomal RNA gene. Although the alignment of the second expansion segment contained regions with many gaps, it provided the most resolution of the gene fragments. Parsimony analysis of the combined data resulted in a cladogram in which species belonging to Drepanidae, Larentiinae, and Sterrhinae formed monophyletic groups. The Ennominae did not form a monophyletic group but rather were contained within a broader monophyletic group including Archiearinae, Geometrinae, and Alsophilinae (represented by only one species per group in the present study). The molecular results were used to explore further the relationship between Sterrhinae and Larentiinae, the question as to whether Ennominae actually represent a monophyletic group, and the relationships between Ennominae and some of the other subfamilies.
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| 2. |
- Betzholtz, Per-Eric, et al.
(författare)
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With that diet, you will go far: trait-based analysis reveals a link between rapid range expansion and a nitrogen-favoured diet
- 2013
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Ingår i: Proceedings of the Royal Society B: Biological Sciences. - Royal Society Publishing. - 1471-2954 .- 0962-8452. ; 280:1750, s. 20122305
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Tidskriftsartikel (refereegranskat)abstract
- Recent global change has had a substantial influence on the distribution of organisms, and many species are currently expanding their ranges. To evaluate the underlying processes, long-term data with good geographic resolution are essential. One important but generally overlooked data source is offered by the taxon-specific national catalogues of first provincial records that are kept in many countries. Here, we use such data to quantify trait-based influences on range expansion in Swedish butterflies and moths between 1973 and 2010. Of 282 species meeting pre-defined quality criteria, 170 expanded their northern range margin, with a mean expansion rate of 2.7 km per year. The analyses demonstrate that habitat and diet generalists, forest species and species active during warm conditions have expanded their ranges more rapidly than other species. Notably, range expansion in diet specialists was positively related to a nitrogen-favoured larval diet, an effect not found among oligo- or polyphagous species. In contrast to the general view, this shows that specialist species can undergo rapid range expansion. We suggest that increased areas of nitrogen-rich habitat, and increased availability of a nitrogen-favoured diet, are among the most important drivers of range expansions, potentially having far-reaching consequences for a wide variety of organisms.
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