Zobrazeno 1 - 10
of 40
pro vyhledávání: '"A Michael Macrander"'
Autor:
Susanna B Blackwell, Christopher S Nations, Trent L McDonald, Aaron M Thode, Delphine Mathias, Katherine H Kim, Charles R Greene, A Michael Macrander
Publikováno v:
PLoS ONE, Vol 10, Iss 6, p e0125720 (2015)
In proximity to seismic operations, bowhead whales (Balaena mysticetus) decrease their calling rates. Here, we investigate the transition from normal calling behavior to decreased calling and identify two threshold levels of received sound from airgu
Externí odkaz:
https://doaj.org/article/2e7ee71b22e94682b9571f08d91e305c
Publikováno v:
Integrated environmental assessment and management. 18(4)
The ability to gather real-time and near real-time data on marine mammal distribution, movement, and habitat use has advanced significantly over the past two decades. These advances have outpaced their adoption into a meaningful, risk-based assessmen
Autor:
Alexander S. Conrad, A. Michael Macrander, Susanna B. Blackwell, Aaron Thode, Katherine H. Kim
Publikováno v:
The Journal of the Acoustical Society of America, vol 142, iss 3
Automated and manual acoustic localizations of bowhead whale calls in the Beaufort Sea were used to estimate the minimum frequency attained by their highly variable FM-modulated call repertoire during seven westerly fall migrations. Analyses of 13 35
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f0f79ebfeaf115f930e91f0eb2d0f30
https://escholarship.org/uc/item/4rc0p3jz
https://escholarship.org/uc/item/4rc0p3jz
Autor:
Katherine H. Kim, Aaron Thode, A. Michael Macrander, Alex S. Conrad, Kerri D. Seger, Susanna B. Blackwell
Publikováno v:
The Journal of the Acoustical Society of America, vol 140, iss 6
Automated and manual acoustic localizations of migrating bowhead whales were used to estimate source level and calling depth distributions of their frequency-modulated-modulated calls over seven years between 2008 and 2014. Whale positions were initi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::646ae7ddacb010d24589f38b884cdc4b
https://escholarship.org/uc/item/89b8b6g2
https://escholarship.org/uc/item/89b8b6g2
Autor:
A. Michael Macrander, Gregory B. Buck, Trent L. McDonald, Melissa A. Halick, Paul R. Smith, David J. Sliwa, Travis Allen, William R. Koski, Darren Ireland, Chris Rushing
Publikováno v:
Aquatic Mammals. 35:347-357
Tests of an unmanned airborne system (UAS) for surveys of marine mammals were conducted near Port Townsend, Washington. Sixteen surveys were conducted over a 10-d period to find 128 simulated whale targets (4 to 9 per survey). Various weather conditi
Range estimation of bowhead whale (Balaena mysticetus) calls in the Arctic using a single hydrophone
Publikováno v:
Journal of the Acoustical Society of America
Journal of the Acoustical Society of America, Acoustical Society of America, 2014, 136, pp.145-155. ⟨10.1121/1.4883358⟩
Journal of the Acoustical Society of America, Acoustical Society of America, 2014, 136, pp.145-155. ⟨10.1121/1.4883358⟩
International audience; Bowhead whales generate low-frequency calls in shallow-water Arctic environments, whose dispersive propagation characteristics are well modeled by normal mode theory. As each mode propagates with a different group speed, a cal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ead6f2b3aefd8213a547a18bc697bcd
https://hal.archives-ouvertes.fr/hal-01089671
https://hal.archives-ouvertes.fr/hal-01089671
Publikováno v:
The Journal of the Acoustical Society of America. 139:2171-2172
Every year during open-water season in 2008–2014, up to 40 passive acoustic recorders (DASARs) were deployed in the Beaufort Sea. Over the eight-year period, more than 3.1 million bowhead calls were localized. A vertical array was also deployed nea
Autor:
Michael Macrander, Gary S. Mauseth, Edward H. Owens, Greg Challenger, Ronald F. Campbell, Dan Doty
Publikováno v:
International Oil Spill Conference Proceedings. 2003:145-151
The gasoline release, explosion, and fire that resulted from the Olympic Pipeline rupture on June 10, 1999 in Bellingham, Washington affected approximately 4 kilometers of the Whatcom Creek system. One component of the response program involved remed
Autor:
Maggie Walser, Sven Haakanson, Rafe Pomerance, Carin J. Ashjian, Eileen E. Hofmann, Amanda Staudt, Gifford H. Miller, Waleed Abdalati, Kate Moran, Sridhar Anandakrishnan, Shelly Freeland, Ellen Mosley-Thompson, Lara Henry, Stephanie Pfirman, Lauren Everett, Larry D. Hinzman, Terry J. Wilson, John J. Cassano, George B. Newton, Katey Walter Anthony, David S. Hik, Jennifer A. Francis, Gaius R. Shaver, A. Michael Macrander, James C. White, Julie Brigham-Grette, Rita Gaskins, Amanda H. Lynch, Caryn Rea, Henry P. Huntington, Laurie Geller, Amanda Purcell, Samuel B. Makusa, Laura Bourgeau-Chavez, Rob Greenway, Elizabeth Finkelman, Tom Weingartner, Robert L. Hawley, Deneb Karentz, Taqulik Hepa, Allan T. Weatherwax
The activity was designed to provide guidance on future research questions in the Arctic over the next 10-20 years, identifying the key scientific questions that are emerging in different realms of Arctic science and exploring both disciplinary realm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afe81ece26b921db7aab4438538f4996
https://doi.org/10.17226/18726
https://doi.org/10.17226/18726
Autor:
Susanna B. Blackwell, Christopher S. Nations, Aaron Thode, Charles R. Greene, Trent L. McDonald, A. Michael Macrander, Melania Guerra
Publikováno v:
Marine Mammal Science.
This study assesses effects of airgun sounds on bowhead calling behavior during the autumn migration. In August–October 2007, 35 directional acoustic recorders (DASARs) were deployed at five sites in the Alaskan Beaufort Sea. Location estimates wer