Mayumi L. Arimitsu
United States Geological Survey
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Featured researches published by Mayumi L. Arimitsu.
The Condor | 2004
Michael A. Litzow; John F. Piatt; Alisa A. Abookire; Suzann G. Speckman; Mayumi L. Arimitsu; Jared D. Figurski
Abstract Low spatiotemporal variability in the abundance of nonschooling prey might allow Pigeon Guillemots (Cepphus columba) to maintain the high chick provisioning rates that are characteristic of the species. We tested predictions of this hypothesis with data collected with beach seines and scuba and hydroacoustic surveys in Kachemak Bay, Alaska, during 1996–1999. Coefficients of variability were 20–211% greater for schooling than nonschooling prey on day, seasonal, and km scales. However, the proportion of schooling prey in chick diets explained relatively little variability in Pigeon Guillemot meal delivery rates at the scale of hours (r2 = 0.07) and weeks (r2 = 0.19). Behavioral adaptations such as flexible time budgets likely ameliorate the negative effects of high resource variability, but we propose that these adaptations are only effective when schooling prey are available at distances well below the maximum foraging range of the species. Previsibilidad Espacio-Temporal de Presas que Forman y No Forman Cardúmenes de Cepphus columba Resumen. La baja variabilidad espacio-temporal en la abundancia de presas que no forman cardúmenes podría permitir que Cepphus columba mantenga las altas tasas de aprovisionamiento de los pichones que caracterizan a esta especie. Evaluamos las predicciones de esta hipótesis con datos colectados mediante redes barredoras de playa y buceo y muestreos hidro-acústicos en la Bahía Kachemak, Alaska, durante 1996– 1999. Los coeficientes de variabilidad fueron 20– 211% mayores para las presas que forman cardúmenes que para las que no forman cardúmenes a las escalas diaria, estacional y de km. Sin embargo, la proporción de presas que forman cardúmenes en la dieta de los pichones explicó relativamente poca variabilidad en las tasas de entrega de alimento de C. columba a la escala de horas (r2 = 0.07) y semanas (r2 = 0.19). Las adaptaciones de comportamiento como presupuestos de tiempo flexibles probablemente corrigen los efectos negativos de la alta variación de recursos, pero proponemos que estas adaptaciones son sólo efectivas cuando las presas que forman cardúmenes están disponibles a distancias bien por debajo del rango máximo de forrajeo de la especie.
Archive | 2017
Mayumi L. Arimitsu; John F. Piatt; Keith A. Hobson; Eran Hood
To demonstrate connectivity between terrestrial and marine ecosystems, we used stable (δ13C, δ15N, δ2H) and radiogenic (∆14C) isotopes to estimate the relative contribution of glacier runoff and terrestrial-derived organic matter (OM) to marine food webs. This dataset contains information on isotopic signatures from dissolved organic matter (DOM), dissolved inorganic matter (DIC) and particulate organic matter (POM), mussels, plankton, fish and seabirds near tidewater glaciers during the peak melt in summer 2012-2013 in Prince William Sound and the Western Aleutians, Alaska.
Open-File Report | 2006
John F. Piatt; Kathy J. Kuletz; Alan E. Burger; Shyla A. Hatch; Vicki L. Friesen; Tim P. Birt; Mayumi L. Arimitsu; Gary S. Drew; Ann M. A. Harding; K.S. Bixler
Limnology and Oceanography | 2015
Jason B. Fellman; Eran Hood; Peter A. Raymond; John Hudson; Maura Bozeman; Mayumi L. Arimitsu
BioScience | 2015
Shad O'Neel; Eran Hood; Allison L. Bidlack; Sean W. Fleming; Mayumi L. Arimitsu; Anthony A. Arendt; Evan W. Burgess; Christopher J. Sergeant; Anne E. Beaudreau; Kristin Timm; Gregory D. Hayward; Joel H. Reynolds; Sanjay Pyare
Fisheries Oceanography | 2008
Mayumi L. Arimitsu; John F. Piatt; Michael A. Litzow; Alisa A. Abookire; Marc D. Romano; Martin D. Robards
Fisheries Oceanography | 2012
Mayumi L. Arimitsu; John F. Piatt; Erica N. Madison; Jeffrey S. Conaway; Nicola Hillgruber
Marine ornithology | 2011
John F. Piatt; Mayumi L. Arimitsu; Gary S. Drew; Erica N. Madison; James L. Bodkin; Marc D. Romano
Marine Ecology Progress Series | 2016
Mayumi L. Arimitsu; John F. Piatt; Franz J. Mueter
Fisheries Research | 2017
William J. Sydeman; Sarah Ann Thompson; Tycho Anker-Nilssen; Mayumi L. Arimitsu; Ashley Bennison; Sophie Bertrand; Philipp H. Boersch-Supan; Charlotte Boyd; Nicole C. Bransome; Robert J. M. Crawford; Francis Daunt; Robert W. Furness; Dimas Gianuca; Amanda J. Gladics; Laura E. Koehn; Jennifer Lang; Elizabeth Logerwell; Taryn L. Morris; Elizabeth M. Phillips; Jennifer F. Provencher; André E. Punt; Claire Saraux; Lynne J. Shannon; Richard B. Sherley; Alejandro Simeone; Ross M. Wanless; Sarah Wanless; Stephani Zador