Introduction to Physidae (Gastropoda: Hygrophila); biogeography, classification, morphology.
Citations
440 citations
Cites background from "Introduction to Physidae (Gastropod..."
...North American Pleuroceridae with over 1,000 nominal taxa and ~200 considered valid (Graf, 2001); Physidae with ~460 nominal taxa, ~80 considered valid (Taylor, 2003); European Lymnaeidae (see below)]....
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...…there are many exceptions, with some pulmonates having very short ranges including some endemic to (ancient) lakes (Boss, 1978), springs (Brown, 2001; Taylor, 2003) or a short section of a single river (Ponder & Waterhouse, 1997) while others are endangered (e.g., Camptoceras in Japan)....
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...…including species, subspecies and ‘‘morphs’’, particularly so in North America and Europe [e.g., North American Pleuroceridae with over 1,000 nominal taxa and *200 considered valid (Graf, 2001); Physidae with *460 nominal taxa, *80 considered valid (Taylor, 2003); European Lymnaeidae (see below)]....
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...Nevertheless, there are many exceptions, with some pulmonates having very short ranges including some endemic to (ancient) lakes (Boss, 1978), springs (Brown, 2001; Taylor, 2003) or a short section of a single river (Ponder & Waterhouse, 1997) while others are endangered (e....
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399 citations
172 citations
121 citations
Cites background or methods from "Introduction to Physidae (Gastropod..."
...Physa johnsoni was placed in the penial morphology c group by Burch (1982, 1988) and Burch & Tottenham (1980), again based on Te (1978), but it is of the penial morphology group b (Taylor, 2003; Wethington & Guralnick, 2004)....
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...integra, or P. virgata. Dillon et al. (2002) found that P. acuta, P. heterostropha and P. integra all interbreed and are able to produce a successful Fl generation with no depression of egg laying compared to incross controls, as well as a successful F2, which suggests that they all represent one biological species. Similarly, P. virgata shows no reproductive isolation from P. acuta (Dillon et al., 2005). Wethington (2003 and unpublished) also showed that the three nominal species P. acuta, P. heterostropha and P. integra are one phylogenetic species based on allozyme and mitochondrial DNA data. Based on the failure of the six topotypic nominal species and subspecies P. acuta, P. heterostropha, P. integra, P. virgata, P. cubensis and P. integra niagarensis to constitute an exclusive clade, it appears that only one phylogenetic species is involved, to which the valid name P. acuta would apply. Inclusion of P. cubensis under the name P. acuta is in accordance with Paraense & Pointier (2003) who showed that P. cubensis is morphologically indistinguishable from P. acuta based on anatomy, including penial morphology. So, not only should P. cubensis be reassigned to the penial c morphology group from Te's (1978) penial be morphology group (our pomilia species group), but it should also be synonymized with P....
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...The subfamilies were each divided into new tribes and the tribes into genera, many newly described (Taylor, 2003)....
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...Both authors maintain the name Petrophysa, as either a subgenus (Te, 1978) or genus (Taylor, 2003)....
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...Taylor (2003) also recognized the monotypic genus Beringophysa Starobogatov & Budnikova, 1976, for Physa jennessi....
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121 citations
References
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183 citations
"Introduction to Physidae (Gastropod..." refers background in this paper
...In northwestern Iowa Clampitt (1970) studied comparative ecology of Physella gyrina and Haitia integra (revised nomenclature) to elucidate differences in local distribution....
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...Physella gyrina (Say, 1821); TL Boyer Creek, Pottawatomie County, Iowa....
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183 citations
"Introduction to Physidae (Gastropod..." refers background in this paper
...A plausible date for such a time would be in the early Tertiary at the latest, if one accepts the interpretation of extensional structure of the Caribbean (Carey, 1976, 1988)....
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...INTERNATIONAL JOURNAL OF TROPICAL BIOLOGY AND CONSERVATION 25 Assuming segregation of Physidae as such along the shores of the tropical eastern Pacific, one can trace the spread of several lineages accompanied by increasing specialization: Austrinautini, to the Caribbean with Caribnauta; Aplexini, in Eurasia with Amuraplexa in southeastern Siberia, Paraplexa in southwestern Europe, Aplexa in western Siberia and Europe, and Sibirenauta in Siberia and northern North America; Amecanautini, to the Caribbean coast, spreading north in Mexico, south to Ecuador, Peru and Chile (Mexinauta, Mayabina); Stenophysini, from the Caribbean (Stenophysa) to southeastern South America (Afrophysa); Physini, in temperate eastern North America (Laurentiphysa), thence to Siberia (Beringophysa) and as far as Europe (Physa); Physellini, from Chiapaphysa of Mexico and Costa Rica into the western United States, where three local relicts (Petrophysa, Costatella, Utahphysa), then in both western and eastern United States, Archiphysa, sporadic in lakes of both areas, and Physella, widespread in Canada and the United States, and lastly, Ultraphysella, of Sinaloa and Nayarit, Mexico....
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...A plausible date for such a time would be in the early Tertiary at the latest, if one accepts the interpretation of extensional structure of the Caribbean (Carey, 1976, 1988). Another strong argument against accidental transportation is that the range of S. marmorata is by no means unique. It fills much of a standard pattern of distribution of other organisms encircling the Caribbean that Croizat (1976) called the “Antillean Ring....
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...It fills much of a standard pattern of distribution of other organisms encircling the Caribbean that Croizat (1976) called the “Antillean Ring.”...
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...It is found throughout the Greater Antilles except for Cuba, through the Lesser Antilles to Trinidad at least, in the western Caribbean on Providence Island, and in eastern Costa Rica (for localities and distribution map see under the species)....
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