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403 results on '"Benoit-Bird, Kelly"'

3. Globally Consistent Quantitative Observations of Planktonic Ecosystems

Author

Lombard, Fabien, Boss, Emmanuel, Waite, Anya M, Vogt, Meike, Uitz, Julia, Stemmann, Lars, Sosik, Heidi M, Schulz, Jan, Romagnan, Jean-Baptiste, Picheral, Marc, Pearlman, Jay, Ohman, Mark D, Niehoff, Barbara, Moeller, Klas M, Miloslavich, Patricia, Lara-Lpez, Ana, Kudela, Raphael, Lopes, Rubens M, Kiko, Rainer, Karp-Boss, Lee, Jaffe, Jules S, Iversen, Morten H, Frisson, Jean-Olivier, Fennel, Katja, Hauss, Helena, Guidi, Lionel, Gorsky, Gaby, Giering, Sarah LC, Gaube, Peter, Gallager, Scott, Dubelaar, George, Cowen, Robert K, Carlotti, Francois, Briseno-Avena, Christian, Berline, Leo, Benoit-Bird, Kelly, Bax, Nicholas, Batten, Sonia, Ayata, Sakina Dorothee, Artigas, Luis Felipe, and Appeltans, Ward

Subjects
plankton, imaging, OceanObs, autonomous platforms, global observing, EOVs, ECVs, Oceanography, Ecology
Published
2019

4. Humpback whale song occurrence reflects ecosystem variability in feeding and migratory habitat of the northeast Pacific.

Author

Ryan, John P, Cline, Danelle E, Joseph, John E, Margolina, Tetyana, Santora, Jarrod A, Kudela, Raphael M, Chavez, Francisco P, Pennington, J Timothy, Wahl, Christopher, Michisaki, Reiko, Benoit-Bird, Kelly, Forney, Karin A, Stimpert, Alison K, DeVogelaere, Andrew, Black, Nancy, and Fischer, Mark

Subjects
Animals, Vocalization, Animal, Animal Migration, Ecosystem, Temperature, Seasons, Population Density, California, Humpback Whale, General Science & Technology, MD Multidisciplinary
Abstract

This study examines the occurrence of humpback whale (Megaptera novaeangliae) song in the northeast Pacific from three years of continuous recordings off central California (36.713°N, 122.186°W). Song is prevalent in this feeding and migratory habitat, spanning nine months of the year (September-May), peaking in winter (November-January), and reaching a maximum of 86% temporal coverage (during November 2017). From the rise of song in fall through the end of peak occurrence in winter, song length increases significantly from month to month. The seasonal peak in song coincides with the seasonal trough in day length and sighting-based evidence of whales leaving Monterey Bay, consistent with seasonal migration. During the seasonal song peak, diel variation shows maximum occurrence at night (69% of the time), decreasing during dawn and dusk (52%), and further decreasing with increasing solar elevation during the day, reaching a minimum near solar noon (30%). Song occurrence increased 44% and 55% between successive years. Sighting data within the acoustic detection range of the hydrophone indicate that variation in local population density was an unlikely cause of this large interannual variation. Hydrographic data and modeling of acoustic transmission indicate that changes in neither habitat occupancy nor acoustic transmission were probable causes. Conversely, the positive interannual trend in song paralleled major ecosystem variations, including similarly large positive trends in wind-driven upwelling, primary productivity, and krill abundance. Further, the lowest song occurrence during the first year coincided with anomalously warm ocean temperatures and an extremely toxic harmful algal bloom that affected whales and other marine mammals in the region. These major ecosystem variations may have influenced the health and behavior of humpback whales during the study period.

Published
2019

9. Using individual-based bioenergetic models to predict the aggregate effects of disturbance on populations: A case study with beaked whales and Navy sonar

Author

Hin, Vincent, primary, de Roos, André M., additional, Benoit-Bird, Kelly J., additional, Claridge, Diane E., additional, DiMarzio, Nancy, additional, Durban, John W., additional, Falcone, Erin A., additional, Jacobson, Eiren K., additional, Jones-Todd, Charlotte M., additional, Pirotta, Enrico, additional, Schorr, Gregory S., additional, Thomas, Len, additional, Watwood, Stephanie, additional, and Harwood, John, additional

Published
2023
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15. Resource Patchiness as a Resolution to the Food Paradox in the Sea.

Author

Benoit-Bird, Kelly J.

Subjects
*PREDATION, *CONCEPTUAL models, *BIOTIC communities, *ANIMAL behavior
Abstract

Average concentrations of biota in the ocean are low, presenting a critical problem for ocean consumers. High-resolution sampling, however, demonstrates that the ocean is peppered with narrow hot spots of organism activity. To determine whether these resource aggregations could provide a significant solution to the ocean's food paradox, a conceptual graphical model was developed that facilitates comparisons of the role of patchiness in predator-prey interactions across taxa, size scales, and ecosystems. The model predicts that predators are more reliant on aggregated resources for foraging success when the average concentrations of resources is low, the size discrepancy between predator and prey is great, the predator has a high metabolic rate, and/or the predator's foraging time is limited. Size structure differences between marine and terrestrial food webs and a vast disparity in the overall mean density of their resources lead to the conclusion that high-density aggregations of prey are much more important to the survival of oceanic predators than their terrestrial counterparts, shaping the foraging decisions that are available to an individual and setting the stage on which evolutionary pressures can act. Patches of plenty may be rare, but they play an outsized role in behavioral, ecological, and evolutionary processes, particularly in the sea. [ABSTRACT FROM AUTHOR]

Published
2024
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19. Using individual-based bioenergetic models to predict the aggregate effects of disturbance on populations: A case study with beaked whales and Navy sonar

Author

Hin, Vincent, De Roos, André M., Benoit-Bird, Kelly J., Claridge, Diane E., DiMarzio, Nancy, Durban, John W., Falcone, Erin A., Jacobson, Eiren K., Jones-Todd, Charlotte M., Pirotta, Enrico, Schorr, Gregory S., Thomas, Len, Watwood, Stephanie, Harwood, John, Hin, Vincent, De Roos, André M., Benoit-Bird, Kelly J., Claridge, Diane E., DiMarzio, Nancy, Durban, John W., Falcone, Erin A., Jacobson, Eiren K., Jones-Todd, Charlotte M., Pirotta, Enrico, Schorr, Gregory S., Thomas, Len, Watwood, Stephanie, and Harwood, John

Abstract

Anthropogenic activities can lead to changes in animal behavior. Predicting population consequences of these behavioral changes requires integrating short-term individual responses into models that forecast population dynamics across multiple generations. This is especially challenging for long-lived animals, because of the different time scales involved. Beaked whales are a group of deep-diving odontocete whales that respond behaviorally when exposed to military mid-frequency active sonar (MFAS), but the effect of these nonlethal responses on beaked whale populations is unknown. Population consequences of aggregate exposure to MFAS was assessed for two beaked whale populations that are regularly present on U.S. Navy training ranges where MFAS is frequently used. Our approach integrates a wide range of data sources, including telemetry data, information on spatial variation in habitat quality, passive acoustic data on the temporal pattern of sonar use and its relationship to beaked whale foraging activity, into an individual-based model with a dynamic bioenergetic module that governs individual life history. The predicted effect of disturbance from MFAS on population abundance ranged between population extinction to a slight increase in population abundance. These effects were driven by the interaction between the temporal pattern of MFAS use, baseline movement patterns, the spatial distribution of prey, the nature of beaked whale behavioral response to MFAS and the top-down impact of whale foraging on prey abundance. Based on these findings, we provide recommendations for monitoring of marine mammal populations and highlight key uncertainties to help guide future directions for assessing population impacts of nonlethal disturbance for these and other long-lived animals.

Published
2023

21. Schrödinger's fish: Examining the robotic observer effect on pelagic animals.

Author

Benoit‐Bird, Kelly J., Waluk, Chad M., Martin, Eric J., Reisenbichler, Kim R., Sherlock, Robert E., McGill, Paul R., and Robison, Bruce H.

Subjects
HAWTHORNE effect, AUTONOMOUS underwater vehicles, MARINE animals, ROBOTICS, MATHEMATICAL expansion, RADARSAT satellites
Abstract

Robust sampling of animals is necessary for understanding ocean ecology, but evaluating the effectiveness of our samplers is a challenge. Scientific echosounders were added to two robotic platforms carrying video imaging systems: a remotely operated vehicle (ROV) and an autonomous underwater vehicle (AUV). The vehicles were used to quantitatively sample midwater life in Monterey Bay along horizontal transects at incremental depths ranging from 25 to 1000 m. The echosounders allowed the bulk behavioral responses of animals to be observed up to 200 m forward of each platform. These responses observed included no response, continual avoidance, avoidance to a fixed range resulting in a patch, and attraction. There were strong and interacting effects of depth and platform type on behavioral responses. Measurements of acoustic backscatter showed that animals responded more strongly to the AUV than the ROV. During AUV surveys, there were effects of day/night and the use of artificial illumination on animal responses. Behavioral responses to our sampling were both species‐ and context‐dependent. These data inspired the expansion of an existing mathematical framework that formalized the processes affecting the sampling of motile ocean organisms. Originally developed for net sampling, we generalized the equations to be platform‐ and sensor‐agnostic and incorporated animal decision‐making processes to allow for behaviors consistent with the full range of responses we observed. These results and the framework can help move toward more effective sampling of motile animals in the ocean. [ABSTRACT FROM AUTHOR]

Published
2023
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23. Oceanic giants dance to atmospheric rhythms: Ephemeral wind‐driven resource tracking by blue whales

Author

Ryan, John P., primary, Benoit‐Bird, Kelly J., additional, Oestreich, William K., additional, Leary, Paul, additional, Smith, Kevin B., additional, Waluk, Chad M., additional, Cade, David E., additional, Fahlbusch, James A., additional, Southall, Brandon L., additional, Joseph, John E., additional, Margolina, Tetyana, additional, Calambokidis, John, additional, DeVogelaere, Andrew, additional, and Goldbogen, Jeremy A., additional

Published
2022
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42. AUTOBIOGRAPHICAL SKETCHES OF WOMEN IN OCEANOGRAPHY

Author

Delaney, Peggy, Abrantes, Fatima, Alexander, Vera, Alldredge, Alice L., Almogi-Labin, Ahuva, Alonso, Belén, Anand, Pallavi, Ates, Sibel Bargu, Bauch, Dorothea, Bell, Robin E., Benitez-Nelson, Claudia, Benoit-Bird, Kelly, Bergamaschi, Dorothy Eden, Bernhard, Joan M., Billups, Katharina, Bronk, Deborah A., Campbell, Lisa, Canuel, Elizabeth A., Carbotte, Suzanne, Cessi, Paola, Chang, Grace C., Chase, Zanna, Chereskin, Teresa, Chiba, Sanae, Chisholm, Penny, Christeson, Gail, Cita, Maria Bianca, Class, Cornelia, Coble, Paula, Conte, Maureen, Cooke, Penelope, Cormier, Marie-Helene, Crane, Kathleen, Daly, Kendra L., Darling, Kate, de Angelis, Marie, De La Rocha, Christina, Demopoulos, Amanda W.J., Dierssen, Heidi, Druffel, Ellen R.M., Edmonds, Henrietta N., Edwards, Margo, Erba, Elisabetta, Ercilla, Gemma, Escutia, Carlota, Estrada, Marta, Falkner, Kelly Kenison, Fine, Rana A., Frank, Tracy D., Gardner, Joan M., Gargett, Ann, Garzoli, Silvia L., Gibson, Deidre M., Gillis, Kathryn, Gilbert, Patricia M., Goffredi, Shana K., Greengrove, Cheryl, Hall, Julie, Muller, Pamela Hallock, Hamme, Roberta C., Harada, Naomi, Harwood, Lois, Haymon, Rachel M., Heywood, Karen J., Hickey, Barbara M., Hill, Tessa M., Hooft, Emilie, Hummon, Julia M., Humphris, Susan E., Hutchinson, Deborah R., Ingalls, Anitra E., Isern, Alexandra R., Johns, Elizabeth, Joseph, Leah H., Joye, Samantha (Mandy), Kappel, Ellen S., Karp-Boss, Lee, Karsten, Jill, Kastner, Miriam, Kelley, Deborah S., Kim, Stacy, Klein, Emily M., Kominz, Michelle, Lange, Carina B., Lavín, Alicia M., Lavoie, Dawn, Leinen, Margaret S., Levin, Lisa A., Liepert, Beate, Lightsom, Frances, Lozier, M. Susan, Lynch-Stieglitz, Jean, Manley, Patricia Lee, Marcus, Nancy, Martin, Ellen E., Martini, Marinna, Matrai, Patricia A., McAndrew, Patricia, McClean, Julie, McGregor, Bonnie A., McHugh, Cecilia, McLaughlin, Fiona, McNutt, Marcia, McPhee-Shaw, Erika E., Mills, Rachel A., Moran, Kathryn, Mulholland, Margaret R., Muller-Parker, Gisèle, Mullineaux, Lauren, Neil, Helen, Noble, Marlene, O'Connell, Suzanne, Oppo, Delia, Orellana, Mónica V., Özkan-Haller, Tuba, Pascual, Mercedes, Passow, Uta, Paytan, Adina, Pilskaln, Cindy, Pyrtle, Ashanti J., Raffi, Isabella, Ravelo, Christina, Raymo, Maureen, Reguera, Beatriz, Reimers, Clare E., Reysenbach, Anna-Louise, Richardson, Mary Jo, Rickaby, Rosalind E.M., Rii, Shimi, Malanotte-Rizzoli, Paola, Robertson, Robin, Robinson, Rebecca, Rosenfeld, Leslie, Ross, Robin M., Ruppel, Carolyn, Russell, Ann D., Sabatés, Ana, Schwager, Katherine B., Scranton, Mary, Sherr, Evelyn B., Silver, Mary, Sloyan, Bernadette M., Smith, Deborah K., Sosik, Heidi M., Spitz, Yvette H., Stakes, Debra S., Stathoplos, Linda, Steinberg, Deborah K., Szmant, Alina M., Tachikawa, Kazuyo, Talaue-McManus, Liana, Talley, Lynne D., Tauxe, Lisa, Tester, Patricia A., Thomas, Debbie, Thomas, Ellen, Tolstoy, Maya, Torres, Marta E., Tréhu, Anne, Van Dover, Cindy Lee, Vlahos, Penny, Von Damm, Karen L., Wade, Bridget, Ward, Bess B., Wheeler, Patricia A., Whelan, Jean, White, Lisa D., Whitman, Jill M., Winckler, Gisela, Wishner, Karen F., Wright, Dawn, Wright, Elizabeth, Yalçin-Özdilek, Şükran, Yen, Jeannette, Yuan, Xiaojun, Zingone, Adriana, and Ziveri, Patrizia

Published
2005

47. Persistent Sampling of Vertically Migrating Biological Layers by an Autonomous Underwater Vehicle Within the Beam of a Seabed-Mounted Echosounder

Author

Zhang, Yanwu, primary, Kieft, Brian, additional, Hobson, Brett W., additional, Raanan, Ben-Yair, additional, Urmy, Samuel S., additional, Pitz, Kathleen J., additional, Preston, Christina M., additional, Roman, Brent, additional, Benoit-Bird, Kelly J., additional, Birch, James M., additional, Chavez, Francisco P., additional, and Scholin, Christopher A., additional

Published
2021
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