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An Annotated Checklist and Preliminary Designation of Drainage Distributions of the Crayfishes of Alabama

机译:阿拉巴马州小龙虾的注水清单和排水分布的初步指定

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As a first step toward elucidating the current status of Alabama's cray-fish fauna, museums known to have significant crayfish collections were queried for their holdings from that state. A total of 4649 records of Alabama crayfishes were obtained from seven museums. Three-hundred thirty of the records did not have suitable information for geo-referencing. The largest holdings were in the National Museum of Natural History (2544 records). Specimen identifications were verified, and all records were geo-referenced. Geographic distribution strongly favored upland drainages in the northern and central portions of the state. The Tennessee River drainage was the most collected drainage (1018 records, 23.6% of records). A total of 85 species of crayfishes are reported for the state of Alabama; only Orconectes virilis (Virile Crayfish) is deemed to be non-native. Even with the extensive collection of crayfish records in museums, there is a need for crayfish inventory work in Alabama. A total of 3 107 records (76.3%) were collected prior to 1987, and 1379 (33.8%) were collected prior to 1970. In addition, there is a paucity of records from the coastal drainages of SE Alabama. There is also an under-representation of burrowing crayfishes, especially those classified as either primary or secondary burrowers. Only 212 (4.9%) of all records are of burrowing species. Lastly, a limited amount of fieldwork in Alabama has documented the presence of a species previously Unreported for the state.
机译:作为阐明阿拉巴马州小龙虾动物区系当前状况的第一步,询问了该州藏有小龙虾藏品的博物馆。从七个博物馆获得了总共4649条阿拉巴马州小龙虾的记录。百分之三百三十的记录没有合适的地理参考信息。持有量最大的是国家自然历史博物馆(2544条记录)。验证了标本标识,并对所有记录进行了地理参考。地理分布强烈支持该州北部和中部地区的山地排水。田纳西河排水是收集最多的排水(1018条记录,占记录的23.6%)。据报道,阿拉巴马州总共有85种小龙虾。仅维尔纽斯(Virile小龙虾)被认为是非本地的。即使博物馆中收集了许多小龙虾记录,阿拉巴马州仍需要进行小龙虾盘存工作。 1987年之前共收集了3107条记录(76.3%),1970年之前共收集了1379条记录(33.8%)。此外,东南阿拉巴马州沿海排水系统的记录很少。穴居小龙虾的代表性也不足,尤其是那些归类为初级或次级穴居小龙虾的小龙虾。在所有记录中,只有212种(4.9%)是穴居物种。最后,在阿拉巴马州进行的少量田野调查已记录了该州以前未报告的物种的存在。

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