000	02225nam  2200289za 4500
001	9.814004
003	CaOODSP
005	20240527135429
007	cr |||||||||||
008	160330s2015    oncobd  ob   f000 0 eng d
020	|a978-0-660-05005-8
040	|aCaOODSP|beng
043	|an-cn---
086	1 |aCW69-14/492-2016E-PDF
245	00|aCOSEWIC assessment and status report on the Rainbow Villosa iris in Canada |h[electronic resource] / |cCommittee on the Status of Endangered Wildlife in Canada.
246	35|aCOSEWIC status report on the Rainbow Villosa iris in Canada 2015
260	|aOttawa : |bEnvironment Canada, Canadian Wildlife Service, COSEWIC Secretariat, |cc2015.
300	|axii, 82 p. : |bphotos, maps, charts.
500	|aIssued also in French under title: Évaluation et rapport de situation du COSEPAC sur la Villeuse irisée Villosa iris au Canada.
500	|a"Special concern 2015"--Cover.
504	|aIncludes bibliographical references (p. 63-76).
520	|aThis small mussel is widely distributed in southern Ontario. Surveys since the previous assessment in 2006 have found large numbers of individuals in previously unknown localities, especially at headwaters of larger rivers. There is strong evidence of recent recruitment in six of the seven subpopulations examined. Although it has been lost from Lake Erie and the Detroit and Niagara Rivers, it was apparently never common in these waters. Two subpopulations (Ausable River and Lake St. Clair) have low abundance and are showing signs of continued decline. Ongoing threats to some subpopulations include invasive species (dreissenid mussels and Round Goby) and pollution (household sewage and urban wastewater as well as agricultural effluents). The species may become Threatened if threats are not effectively managed or mitigated.
692	07|2gccst|aEndangered species
710	2 |aCommittee on the Status of Endangered Wildlife in Canada.
710	2 |aCanadian Wildlife Service.
775	08|tÉvaluation et rapport de situation du COSEPAC sur la Villeuse irisée Villosa iris au Canada |w(CaOODSP)9.814005
856	40|qPDF|s2.09 MB|uhttps://publications.gc.ca/collections/collection_2016/eccc/CW69-14-492-2016-eng.pdf