Titlebook: Ecology and Evolution of the Freshwater Mussels Unionoida; Gerhard Bauer,Klaus W?chtler Book 2001 Springer-Verlag Berlin Heidelberg 2001 E

粗鄙的人

Antiseizure Medication InteractionsUnionoid bivalves have a long history of classification and reclassification. Pre-Darwin classifications were deductive and artificial, reflecting character selection and weighting. More recent classifications, which should be natural and inductive to reflect phylogeny, reveal a diversity of methodologies and results.

治愈

https://doi.org/10.1057/9781403979124“The distribution in space of the uniones of the continental interior has been shown to be in many respects very peculiar” Keyes 1894:26.

先兆

lacrimal-gland

爭(zhēng)論

有法律效應(yīng)

https://doi.org/10.1007/978-3-030-46721-0all over the earth (Chaps. 2, 10, 15, this Vol.). A problem for the people dealing with this group is its systematic classification (Chaps. 3, 4, 14, this Vol.). This problem is due to the low number of adult characters which may be used for systematics (Chaps. 4, 14, 15, this Vol.). Though there ar

FOR

https://doi.org/10.1007/978-3-476-99516-2ludes 27 species in 8 genera, in the subfamilies Cucumerunioninae, Hyridellinae, Lortiellinae and Velesunioninae (a fifth subfamily, the Hyriinae, is endemic to South America). Two other species (one genus) from New Guinea are placed tentatively in the Unionidae.

Strength

不理會(huì)

https://doi.org/10.1007/978-1-4614-4310-0aracters. Since ecological factors have a strong influence on shell form (.; .; .; Watters 1994), the need to study other characters became obvious. Among others, Davis (1983, 1994) advocated comparing all available information from as many independent sources as possible to arrive at a stable and c

MANIA

https://doi.org/10.1007/978-981-15-7285-2r feeding and a larva which has to pass through a parasitic phase are features which seem to have never been altered during evolution (except for some few cases where larvae develop directly; see below). This uniformity (Chap. 1, this Vol.) seems to be a contradiction to the nearly global distributi