Zobrazeno 1 - 10
of 28
pro vyhledávání: '"James B. Layzer"'
Publikováno v:
Alternatives in Regulated River Management ISBN: 9781351069595
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8b7a380887961e3235c00e26fa3523c
https://doi.org/10.1201/9781351069595-12
https://doi.org/10.1201/9781351069595-12
Autor:
Chase A. Ehlo, James B. Layzer
Publikováno v:
The American Midland Naturalist. 171:1-15
Population characteristics and life history aspects of healthy mussel populations are poorly understood. The reproductive cycle, age and growth, and population structure of Obovaria subrotunda were examined at four sites in the middle Duck River, Ten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5785a13b26d3b89982cf8931283c672
https://doi.org/10.1674/0003-0031-171.1.1
https://doi.org/10.1674/0003-0031-171.1.1
Publikováno v:
The American Midland Naturalist. 170:248-259
Muskrats (Ondatra zibethicus) are known to prey on freshwater bivalves (mussels and clams) and can negatively impact imperiled mussel species. However, factors that influence muskrat predation on bivalves are poorly understood. We evaluated the feedi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::000503be36df1a628468b14dc8cd3187
https://doi.org/10.1674/0003-0031-170.2.248
https://doi.org/10.1674/0003-0031-170.2.248
Autor:
James B. Layzer, V. Malissa Davis
Publikováno v:
The American Midland Naturalist. 167:79-95
The fluted kidneyshell Ptychobranchus subtentum (Say, 1825) is a candidate for listing under the Endangered Species Act by the US Fish and Wildlife Service. Fecundity, fish hosts, and selected population demographics were determined during 2005–200
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e6c73f33076b1eb428dd26f6ee90744
https://doi.org/10.1674/0003-0031-167.1.79
https://doi.org/10.1674/0003-0031-167.1.79
Autor:
James B. Layzer, M. J. Ashton
Publikováno v:
Ecology of Freshwater Fish. 19:609-617
We characterised microhabitat availability and use by adult and young-of-year (YOY) snail darters (Percina tanasi Etnier 1976) while snorkelling in the French Broad and Hiwassee rivers, TN, USA. Both age groups of snail darters disproportionately use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f62d61de0b0fd16a527dd1db7d45404b
https://doi.org/10.1111/j.1600-0633.2010.00442.x
https://doi.org/10.1111/j.1600-0633.2010.00442.x
Publikováno v:
The American Midland Naturalist. 160:300-309
The bluemask darter Etheostoma (Doration) sp. is an endangered fish endemic to the upper Caney Fork system in the Cumberland River drainage in central Tennessee. Darters (Etheostoma spp.) are typically short-lived and exhibit rapid growth that quickl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53bd20a185ef36c379ce22313b729503
https://doi.org/10.1674/0003-0031(2008)160[300:asavot]2.0.co
https://doi.org/10.1674/0003-0031(2008)160[300:asavot]2.0.co
Autor:
James B. Layzer, Kendall R. Moles
Publikováno v:
Journal of the North American Benthological Society. 27:212-222
Factors affecting the reproductive success of freshwater mussels in lotic systems are poorly understood. Gravidity, fecundity, and fertilization success of Actinonaias ligamentina were examined at 4 sites along a 63-km reach of the Green River immedi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33dd64a30ad3326efc7774b130404360
https://doi.org/10.1899/07-006.1
https://doi.org/10.1899/07-006.1
Autor:
Samrat Saha, James B. Layzer
Publikováno v:
Journal of the North American Benthological Society. 27:84-89
The shells of most North American freshwater mussel species are not sexually dimorphic. During the brooding period, gravid females can be identified by inspection of marsupial gills; however, it is difficult to separate nongravid females from males i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a5d9f790fdbab82d34c2d1a85b40155
https://doi.org/10.1899/07-004r.1
https://doi.org/10.1899/07-004r.1
Autor:
James B. Layzer, Jeffrey W. Simmons
Publikováno v:
Copeia. 2004:412-417
The Bluemask Darter, Etheostoma (Doration) sp., is an endangered fish endemic to the upper Caney Fork system in the Cumberland River drainage in central Tennessee. Little is known about the life history of this species, and an understanding of its re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cab6a6feac7ef69062f3c20fd11b403
https://doi.org/10.1643/ci-03-224r1
https://doi.org/10.1643/ci-03-224r1
Publikováno v:
Southeastern Naturalist. 2:73-84
The endangered Cumberland pigtoe is a small mussel endemic to the upper Caney Fork River drainage in middle Tennessee, USA. Gravid individuals were collected from late June through August. Conglutinates obtained from these individuals contained few g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9ce7dd71f3cd11a85f61efbc53ce989
https://doi.org/10.1656/1528-7092(2003)002[0073:ghaoao]2.0.co
https://doi.org/10.1656/1528-7092(2003)002[0073:ghaoao]2.0.co