Zobrazeno 1 - 10
of 69
pro vyhledávání: '"W. John Richardson"'
Autor:
Trent L. McDonald, W. John Richardson, Charles R. Greene Jr., Susanna B. Blackwell, Christopher S. Nations, Ryan M. Nielson, Bill Streever
Publikováno v:
J. Cetacean Res. Manage.. 12:91-106
This paper describes an analysis approach designed to detect the effects of fluctuating anthropogenic underwater sound on the distribution of calling bowhead whales (Balaena mysticetus) during migration. The anthropogenic sounds in this case were ass
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a03d597e4370a657abd8811b1bf1e5d
https://doi.org/10.47536/jcrm.v12i1.596
https://doi.org/10.47536/jcrm.v12i1.596
Autor:
Andrew W. Trites, Bernd Würsig, William R. Koski, W. John Richardson, Tannis A. Thomas, Frances C. Robertson
Publikováno v:
Endangered Species Research, Vol 21, Iss 2, Pp 143-160 (2013)
The surfacing, respiration and diving (SRD) behavior of bowhead whales Balaena mysticetus changes upon exposure to seismic operations. However, it is unknown whether these changes differ by season, reproductive status (calves, mothers, and non-calves
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d91886838abd5a6cb762c79dce136107
https://www.int-res.com/abstracts/esr/v21/n2/p143-160/
https://www.int-res.com/abstracts/esr/v21/n2/p143-160/
Autor:
Trent L. McDonald, W. John Richardson, Charles R. Greene, Susanna B. Blackwell, Lisanne A. M. Aerts, Bill Streever, Katherine H. Kim
Publikováno v:
Marine Mammal Science. 28:200-212
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a05a400589db41e645691635d879fd2
https://doi.org/10.1111/j.1748-7692.2011.00464.x
https://doi.org/10.1111/j.1748-7692.2011.00464.x
Autor:
W. John Richardson
Publikováno v:
Ibis. 116:172-193
Summary Migration over Puerto Rico was recorded by time-lapse filming of the display of a long-range surveillance radar on 108 days and 93 nights in the period 13 August-13 November in 1970 and 1971. Altitudes were recorded on nine days. Passerine mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ce934eea412ee6ae5704f8aa4c8e6e7
https://doi.org/10.1111/j.1474-919x.1974.tb00237.x
https://doi.org/10.1111/j.1474-919x.1974.tb00237.x
Autor:
W. John Richardson
Publikováno v:
Ibis. 118:309-332
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a4f4f17e2b04762356638679dc88f2a
https://doi.org/10.1111/j.1474-919x.1976.tb02023.x
https://doi.org/10.1111/j.1474-919x.1976.tb02023.x
Autor:
W. John Richardson
Publikováno v:
Bioacoustics. 17:13-16
(2008). EFFECTS OF NOISE ON AQUATIC LIFE: MUCH KNOWN, MUCH UNKNOWN. Bioacoustics: Vol. 17, No. 1-3, pp. 13-16.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dabf1c4821027c7edfee29e7a0c8e7ca
https://doi.org/10.1080/09524622.2008.9753748
https://doi.org/10.1080/09524622.2008.9753748
Autor:
Michael T. Williams, Trent L. McDonald, Chris Nations, W. John Richardson, Robert E. Elliott, Valerie D. Moulton
Publikováno v:
Marine Mammal Science. 21:217-242
This study investigates how densities of ringed seals were affected by construction and oil production activities at Northstar, an artificial island built in the nearshore Alaskan Beaufort Sea. Intensive and replicated aerial surveys of seals on land
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b92dfc533498ab4286d384c04abd1463
https://doi.org/10.1111/j.1748-7692.2005.tb01225.x
https://doi.org/10.1111/j.1748-7692.2005.tb01225.x
Publikováno v:
Marine Ecology Progress Series. 285:271-287
The feeding habitats of the Bering-Chukchi-Beaufort stock of bowhead whales Balaena mysticetus during summer and fall migration are generally known, but the relative amounts of food they consume in various parts of the seasonal range are poorly under
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87533a42679c43d75e6ab66d9b1d637b
https://doi.org/10.3354/meps285271
https://doi.org/10.3354/meps285271
Publikováno v:
The Journal of the Acoustical Society of America. 116:3199-3211
Recordings of sounds underwater and in air, and of iceborne vibrations, were obtained at Northstar Island, an artificial gravel island in the Beaufort Sea near Prudhoe Bay (Alaska). The aim was to document the levels, characteristics, and range depen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a67f63585a518386af720a531e6e2d39
https://doi.org/10.1121/1.1806147
https://doi.org/10.1121/1.1806147
Autor:
W. John Richardson, Robert G. Norman, Charles R. Greene, Miles W. McLennan, Trent L. McDonald, Ray S. Jakubczak
Publikováno v:
The Journal of the Acoustical Society of America. 116:799-813
Bowhead whales, Balaena mysticetus, migrate west during fall approximately 10-75 km off the north coast of Alaska, passing the petroleum developments around Prudhoe Bay. Oil production operations on an artificial island 5 km offshore create sounds he
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bef4206fb4bc8a4a1ff69fcb02810285
https://doi.org/10.1121/1.1765191
https://doi.org/10.1121/1.1765191