Search Results - "Jacobsen, Jeff"

Estimating blue whale skin isotopic incorporation rates and baleen growth rates: Implications for assessing diet and movement patterns in mysticetes by Busquets-Vass, Geraldine, Newsome, Seth D, Calambokidis, John, Serra-Valente, Gabriela, Jacobsen, Jeff K, Aguíñiga-García, Sergio, Gendron, Diane

“…Stable isotope analysis in mysticete skin and baleen plates has been repeatedly used to assess diet and movement patterns. Accurate interpretation of isotope…”
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Fatal ingestion of floating net debris by two sperm whales (Physeter macrocephalus) by Jacobsen, Jeff K., Massey, Liam, Gulland, Frances

“…In 2008 two male sperm whales (Physeter macrocephalus) stranded along the northern California coast with large amounts of fishing net scraps, rope, and other…”
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A High-Quality Blue Whale Genome, Segmental Duplications, and Historical Demography by Bukhman, Yury V, Morin, Phillip A, Meyer, Susanne, Chu, Li-Fang, Jacobsen, Jeff K, Antosiewicz-Bourget, Jessica, Mamott, Daniel, Gonzales, Maylie, Argus, Cara, Bolin, Jennifer, Berres, Mark E, Fedrigo, Olivier, Steill, John, Swanson, Scott A, Jiang, Peng, Rhie, Arang, Formenti, Giulio, Phillippy, Adam M, Harris, Robert S, Wood, Jonathan M D, Howe, Kerstin, Kirilenko, Bogdan M, Munegowda, Chetan, Hiller, Michael, Jain, Aashish, Kihara, Daisuke, Johnston, J Spencer, Ionkov, Alexander, Raja, Kalpana, Toh, Huishi, Lang, Aimee, Wolf, Magnus, Jarvis, Erich D, Thomson, James A, Chaisson, Mark J P, Stewart, Ron

“…The blue whale, Balaenoptera musculus, is the largest animal known to have ever existed, making it an important case study in longevity and resistance to…”
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Influence of Life-History Parameters on Persistent Organic Pollutant Concentrations in Blubber of Eastern North Pacific Gray Whales (Eschrichtius robustus) by Hayes, Kia R. R., Ylitalo, Gina M., Anderson, Todd A., Urbán R., Jorge, Jacobsen, Jeff K., Scordino, Jonathan J., Lang, Aimee R., Baugh, Keri A., Bolton, Jennie L., Brüniche-Olsen, Anna, Calambokidis, John, Martínez-Aguilar, Sergio, Subbiah, Seenivasan, Gribble, Matthew O., Godard-Codding, Céline A. J.

“…Exposure to persistent organic pollutants (POPs) can significantly impact marine mammal health, reproduction, and fitness. This study addresses a significant…”
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Songbird dynamics under the sea: acoustic interactions between humpback whales suggest song mediates male interactions by Cholewiak, Danielle M., Cerchio, Salvatore, Jacobsen, Jeff K., Urbán-R., Jorge, Clark, Christopher W.

“…The function of song has been well studied in numerous taxa and plays a role in mediating both intersexual and intrasexual interactions. Humpback whales are…”
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Assessment of genetic structure among eastern North Pacific gray whales on their feeding grounds by Lang, Aimée R., Calambokidis, John, Scordino, Jonathan, Pease, Victoria L., Klimek, Amber, Burkanov, Vladimir N., Gearin, Pat, Litovka, Dennis I., Robertson, Kelly M., Mate, Bruce R., Jacobsen, Jeff K., Taylor, Barbara L.

“…Although most eastern North Pacific (ENP) gray whales feed in the Bering, Beaufort, and Chukchi Seas during summer and fall, a small number of individuals,…”
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Temporal and geographical variation in songs of humpback whales, Megaptera novaeangliae: synchronous change in Hawaiian and Mexican breeding assemblages by Cerchio, Salvatore, Jacobsen, Jeff K., Norris, Thomas F.

“…Humpback whale song, a male breeding display, shows a remarkable degree of similarity among distant breeding assemblages, despite constant progressive change…”
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Paternity in humpback whales, Megaptera novaeangliae: assessing polygyny and skew in male reproductive success by Cerchio, Salvatore, Jacobsen, Jeff K., Cholewiak, Danielle M., Falcone, Erin A., Merriwether, D. Andrew

“…Mating system theory predicts that differences between the sexes in potential reproductive rate and an operational sex ratio skewed strongly towards males…”
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Sex- and age-specific migratory strategies of blue whales in the northeast Pacific Ocean by Blevins, Christina, Busquets-Vass, Geraldine, Pardo, Mario A., Gendron, Diane, Jacobsen, Jeff K., Gómez-Díaz, Francisco, Pérez-Puig, Héctor, Ortega-Ortiz, Christian Daniel, Heckel, Gisela, Urbán R, Jorge, Viloria-Gómora, Lorena, Newsome, Seth D.

“…Migration is a complex behavior that has evolved in multiple taxonomic groups as a means of accessing productive foraging grounds and environmentally stable…”
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KILLER WHALES AND MARINE MAMMAL TRENDS IN THE NORTH PACIFIC--A RE-EXAMINATION OF EVIDENCE FOR SEQUENTIAL MEGAFAUNA COLLAPSE AND THE PREY-SWITCHING HYPOTHESIS by Wade, Paul R, Burkanov, Vladimir N, Dahlheim, Marilyn E, Friday, Nancy A, Fritz, Lowell W, Loughlin, Thomas R, Mizroch, Sally A, Muto, Marcia M, Rice, Dale W, Barrett-Lennard, Lance G, Black, Nancy A, Burdin, Alexander M, Calambokidis, John, Cerchio, Sal, Ford, John K.B, Jacobsen, Jeff K, Matkin, Craig O, Matkin, Dena R, Mehta, Amee V, Small, Robert J, Straley, Janice M, McCluskey, Shannon M, VanBlaricom, Glenn R, Clapham, Phillip J

“…Springer et al. (2003) contend that sequential declines occurred in North Pacific populations of harbor and fur seals, Steller sea lions, and sea otters. They…”
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The conservation status of Townsend's shearwater Puffinus auricularis auricularis by Martı́nez-Gómez, Juan E., Jacobsen, Jeff K.

“…Townsend's shearwater ( Puffinus auricularis auricularis) is an endangered seabird endemic to the Revillagigedo Archipelago. It nested on Socorro, Clarion, and…”
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MOVEMENTS AND POPULATION STRUCTURE OF HUMPBACK WHALES IN THE NORTH PACIFIC by Calambokidis, John, Steiger, Gretchen H., Straley, Janice M., Herman, Louis M., Cerchio, Salvatore, Salden, Dan R., Jorge, Urbán R., Jacobsen, Jeff K., Ziegesar, Olga Von, Balcomb, Kenneth C., Gabriele, Christine M., Dahlheim, Marilyn E., Uchida, Senzo, Ellis, Graeme, Mlyamura, Yukifumi, de guevara Paloma Ladrón, P., Yamaguchi, Manami, Sato, Fumihiko, Mizroch, Sally A., Schlender, Lisa, Rasmussen, Kristin, Barlow, Jay, Ii, Terrance J. Quinn

“…Despite the extensive use of photographic identification methods to investigate humpback whales in the North Pacific, few quantitative analyses have been…”
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Birds of Clarion Island, Revillagigedo Archipelago, Mexico by Wanless, Ross M., Aguirre-muñoz, Alfonso, Angel, Andrea, Jacobsen, Jeff K., Keitt, Bradford S., McCann, John

“…We recorded 62 bird species on Clarion Island, Mexico (Revillagigedo Archipelago, Pacific Ocean) during 1998–2006, eight of which breed there, 52 are…”
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The development and use of towed hydrophone arrays to inform Southern Resident killer whale Critical Habitat in outer coastal waters by Hanson, M. Bradley, Holt, Marla M., Emmons, Candice, Noren, Dawn P., Ferguson, Elizabeth L., Coates, Shannon, Dunleavy, Kerry, Hom-Weaver, Corry, Jacobsen, Jeff

“…Southern Resident killer whales (SRKW) were listed as endangered in 2005, requiring designation of Critical Habitat. At that time little was known about SRKW…”
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A collaborative and near-comprehensive North Pacific humpback whale photo-ID dataset by Cheeseman, Ted, Southerland, Ken, Acebes, Jo Marie, Audley, Katherina, Barlow, Jay, Bejder, Lars, Birdsall, Caitlin, Bradford, Amanda L., Byington, Josie K., Calambokidis, John, Cartwright, Rachel, Cedarleaf, Jen, Chavez, Andrea Jacqueline García, Currie, Jens J., De Weerdt, Joëlle, Doe, Nicole, Doniol-Valcroze, Thomas, Dracott, Karina, Filatova, Olga, Finn, Rachel, Flynn, Kiirsten, Ford, John K. B., Frisch-Jordán, Astrid, Gabriele, Christine M., Goodwin, Beth, Hayslip, Craig, Hildering, Jackie, Hill, Marie C., Jacobsen, Jeff K., Jiménez-López, M. Esther, Jones, Meagan, Kobayashi, Nozomi, Lyman, Edward, Malleson, Mark, Mamaev, Evgeny, Martínez Loustalot, Pamela, Masterman, Annie, Matkin, Craig, McMillan, Christie J., Moore, Jeff E., Moran, John R., Neilson, Janet L., Newell, Hayley, Okabe, Haruna, Olio, Marilia, Pack, Adam A., Palacios, Daniel M., Pearson, Heidi C., Quintana-Rizzo, Ester, Ramírez Barragán, Raul Fernando, Ransome, Nicola, Rosales-Nanduca, Hiram, Sharpe, Fred, Shaw, Tasli, Stack, Stephanie H., Staniland, Iain, Straley, Jan, Szabo, Andrew, Teerlink, Suzie, Titova, Olga, Urban R., Jorge, van Aswegen, Martin, de Morais, Marcel Vinicius, von Ziegesar, Olga, Witteveen, Briana, Wray, Janie, Yano, Kymberly M., Zwiefelhofer, Denny, Clapham, Phil

“…We present an ocean-basin-scale dataset that includes tail fluke photographic identification (photo-ID) and encounter data for most living individual humpback…”
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Bellwethers of change: population modelling of North Pacific humpback whales from 2002 through 2021 reveals shift from recovery to climate response by Cheeseman, Ted, Barlow, Jay, Acebes, Jo Marie, Audley, Katherina, Bejder, Lars, Birdsall, Caitlin, Bracamontes, Olga Solis, Bradford, Amanda L, Byington, Josie, Calambokidis, John, Cartwright, Rachel, Cedarleaf, Jen, Chavez, Andrea Jacqueline García, Currie, Jens, De Castro, Rouenne Camille, De Weerdt, Joëlle, Doe, Nicole, Doniol-Valcroze, Thomas, Dracott, Karina, Filatova, Olga, Finn, Rachel, Flynn, Kiirsten R, Ford, John, Frisch-Jordán, Astrid, Gabriele, Chris, Goodwin, Beth, Hayslip, Craig, Hildering, Jackie, Hill, Marie C, Jacobsen, Jeff K, Jiménez-López, M Esther, Jones, Meagan, Kobayashi, Nozomi, Lammers, Marc, Lyman, Edward, Malleson, Mark, Mamaev, Evgeny, Loustalot, Pamela Martínez, Masterman, Annie, Matkin, Craig O, McMillan, Christie, Moore, Jeff, Moran, John, Neilson, Janet L, Newell, Hayley, Okabe, Haruna, Olio, Marilia, Ortega-Ortiz, Christian D, Pack, Adam A, Palacios, Daniel M, Pearson, Heidi, Quintana-Rizzo, Ester, Barragán, Raul Ramírez, Ransome, Nicola, Rosales-Nanduca, Hiram, Sharpe, Fred, Shaw, Tasli, Southerland, Ken, Stack, Stephanie, Staniland, Iain, Straley, Janice, Szabo, Andrew, Teerlink, Suzie, Titova, Olga, Urban-Ramirez, Jorge, van Aswegen, Martin, Vinicius, Marcel, von Ziegesar, Olga, Witteveen, Briana, Wray, Janie, Yano, Kymberly, Yegin, Igor, Zwiefelhofer, Denny, Clapham, Phil

“…For the 40 years after the end of commercial whaling in 1976, humpback whale populations in the North Pacific Ocean exhibited a prolonged period of recovery…”
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Using Ecological Theory to Guide the Implementation of Augmentative Restoration by Erin C. Bard, Sheley, Roger L., Jeff S. Jacobsen, Borkowski, John J.

“…Successful control of invasive plants can have unexpected effects on native plants and wildland systems. Therefore, it is important for managers of invasive…”
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Identification of the limiting resource within a semi-arid plant association by Krueger-Mangold, Jane, Sheley, Roger, Engel, Rick, Jacobsen, Jeff, Svejcar, Tony, Zabinski, Cathy

“…Our objective was to determine the resource most limiting to plant growth within a semi-arid plant association. We hypothesized that the addition of nitrogen…”
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Geographic variation and cultural evolution in songs of humpback whales ( Megaptera novaeangliae ) in the eastern North Pacific by Cerchio, Salvatore, Jacobsen, Jeff

“…Songs of humpback whales off Hawaii and Mexico were examined to determine whether they changed similarly in both areas during a breeding season. Songs of 24…”
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Migratory destinations of humpback whales that feed off California, Oregon and Washington by Calambokidis, John, Steiger, Gretchen H., Rasmussen, Kristin, Urbán R., Jorge, Balcomb, Kenneth C., de Guevara P., Paloma Ladrón, Salinas Z., Mario, Jacobsen, Jeff K., Baker, C. Scott, Herman, Louis M., Cerchio, Salvatore, Darling, James D.

“…The migratory destinations of humpback whales that feed off California, Oregon and Washington were determined using photo-identification. Fluke photographs of…”
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