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Extinction Rates in North American Aquatic Biota and Ecological Attributes of Extinct North...

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Extinction Rates in North American Aquatic Biota and Ecological Attributes of Extinct North American Fishes

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Title	Extinction Rates in North American Aquatic Biota and Ecological Attributes of Extinct North American Fishes
Contact	mailto:nctcimages@fws.gov
Producer	USFWS/NCTC
Description	Conservation Science Webinar Series. Presented by Noel Burkhead, Research Fish Biologist, USGS. May 7, 2013. North America encompasses the most intensely studied non-tropical aquatic faunas in the world. Contemporary conservation assessments have found extraordinarily high imperilment levels in mussels, snails, crayfishes, and fishes. Modern extinction rates in North American freshwater fishes were recently reported to be two orders of magnitude greater than background rates, but this estimate appears low. Revaluation of modern extinction rates in mussels, snails, crayfishes, and freshwater fishes suggests that modern extinctions are actually five to six orders of magnitude greater than background rates. Because worldwide data on contemporary extinctions in aquatic biotas are limited, extinction rates of North American aquatic biotas are compared to those of vertebrates worldwide. Since more is known about freshwater fishes, a summary of ecological attributes is presented. The predominate pattern is that we are continuing to lose rare and localized species, which will likely continue into the near future.
Subject	videography webinar Conservation science
Publisher	U.S. Fish and Wildlife Service
Contributors	USFWS/NCTC
Date Published	2013-05-07
Type	Video
Format	H264
Item ID	2380227581001
Source	NCTC Video Library
Language	English
Rights	Public Domain
Audience	General
Original Format	Digital
Length	01:02:21
Original Filename	http://brightcove.vo.llnwd.net/e1/uds/pd/821753390001/821753390001_2380283791001_extinction-rates-in-na-aquatic-Biota.mp4
Collection	Conservation Science
Presenter	Noel Burkhead, Research Fish Biologist, USGS
Download File Link (right click link; save target as)	http://brightcove.vo.llnwd.net/e1/uds/pd/821753390001/821753390001_2380283791001_extinction-rates-in-na-aquatic-Biota.mp4
Video Player Link	http://bcove.me/r72zrzfv
Archival file	Volume16/0-2.url
Date created	2013-05-14
Date modified	2017-08-24