Výsledky vyhledávání - "Daniel D Roby"

Akademický článek

Cumulative effects of piscivorous colonial waterbirds on juvenile salmonids: A multi predator-prey species evaluation.

Autor: Allen F Evans, Quinn Payton, Nathan J Hostetter, Ken Collis, Bradley M Cramer, Daniel D Roby

Publikováno v: PLoS ONE, Vol 17, Iss 8, p e0272875 (2022)

We investigated the cumulative effects of predation by piscivorous colonial waterbirds on the survival of multiple salmonid (Oncorhynchus spp.) populations listed under the U.S. Endangered Species Act (ESA) and determined what proportion of all sourc

Externí odkaz: https://doaj.org/article/3e87aff582df44fa9416e833fef3da67

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Akademický článek

Disturbance of a rare seabird by ship-based tourism in a marine protected area.

Autor: Timothy K Marcella, Scott M Gende, Daniel D Roby, Arthur Allignol

Publikováno v: PLoS ONE, Vol 12, Iss 5, p e0176176 (2017)

Managers of marine protected areas (MPAs) must often seek ways to allow for visitation while minimizing impacts to the resources they are intended to protect. Using shipboard observers, we quantified the "zone of disturbance" for Kittlitz's and marbl

Externí odkaz: https://doaj.org/article/656056940309462f85814547db6f5fc9

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Akademický článek

Foraging responses of black-legged kittiwakes to prolonged food-shortages around colonies on the Bering Sea shelf.

Autor: Rosana Paredes, Rachael A Orben, Robert M Suryan, David B Irons, Daniel D Roby, Ann M A Harding, Rebecca C Young, Kelly Benoit-Bird, Carol Ladd, Heather Renner, Scott Heppell, Richard A Phillips, Alexander Kitaysky

Publikováno v: PLoS ONE, Vol 9, Iss 3, p e92520 (2014)

We hypothesized that changes in southeastern Bering Sea foraging conditions for black-legged kittiwakes (Rissa tridactyla) have caused shifts in habitat use with direct implications for population trends. To test this, we compared at-sea distribution

Externí odkaz: https://doaj.org/article/77965e84ca574039bd47c662a2edb0e3

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Akademický článek

Wind, waves, and wing loading: morphological specialization may limit range expansion of endangered albatrosses.

Autor: Robert M Suryan, David J Anderson, Scott A Shaffer, Daniel D Roby, Yann Tremblay, Daniel P Costa, Paul R Sievert, Fumio Sato, Kiyoaki Ozaki, Gregory R Balogh, Noboru Nakamura

Publikováno v: PLoS ONE, Vol 3, Iss 12, p e4016 (2008)

Among the varied adaptations for avian flight, the morphological traits allowing large-bodied albatrosses to capitalize on wind and wave energy for efficient long-distance flight are unparalleled. Consequently, the biogeographic distribution of most

Externí odkaz: https://doaj.org/article/3b156f2253504ed8b055fbf745284928

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Akademický článek

Marine habitat use and movement in response to ocean warming by a threatened forest-nesting seabird

Autor: Marie-Sophie Garcia-Heras, Christopher Wolf, Jennifer A. Bailey Guerrero, Lindsay J. Adrean, S. Kim Nelson, Daniel D. Roby, Matthew G. Betts, James W. Rivers

Publikováno v: Global Ecology and Conservation, Vol 50, Iss , Pp e02857- (2024)

Although anthropogenic climate change has resulted in significant alterations of ocean environments, the degree to which marine organisms can respond behaviorally to climate effects remains poorly understood, especially for species with increased ext

Externí odkaz: https://doaj.org/article/92d95fbe8f1a4fb8be5f1489a96c23f8

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Akademický článek

Predation probabilities and functional responses: How piscivorous waterbirds respond to pulses in fish abundance

Autor: Nathan J. Hostetter, Quinn Payton, Daniel D. Roby, Ken Collis, Allen F. Evans

Publikováno v: Ecosphere, Vol 13, Iss 9, Pp n/a-n/a (2022)

Abstract How predators respond to changes in prey abundance (i.e., functional responses) is foundational to consumer–resource interactions, predator–prey dynamics, and the stability of predator–prey systems. Predation by piscivorous waterbirds

Externí odkaz: https://doaj.org/article/23f71eab583d4a4a962a72d653f42362

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