Vulnerability to fluctuations in prey and predation landscape in a central place foraging marine predator

Autor: Cassie N. Speakman, Elizabeth A. McHuron, John P. Y. Arnould

Publikováno v: Frontiers in Marine Science, Vol 11 (2024)

IntroductionHuman-induced environmental change is driving a global redistribution of biodiversity, resulting in shifting prey and predation landscapes. These shifting landscapes can lead to changes in behavior, health, and vital rates, with potential

Externí odkaz: https://doaj.org/article/23abde8421c742dcb0910953938f9277

Intertrip consistency in hunting behavior improves foraging success and efficiency in a marine top predator

Autor: Cassie N. Speakman, Sebastian T. Lloyd, Elodie C. M. Camprasse, Andrew J. Hoskins, Mark A. Hindell, Daniel P. Costa, John P. Y. Arnould

Publikováno v: Ecology and Evolution, Vol 11, Iss 9, Pp 4428-4441 (2021)

Abstract Substantial variation in foraging strategies can exist within populations, even those typically regarded as generalists. Specializations arise from the consistent exploitation of a narrow behavioral, spatial or dietary niche over time, which

Externí odkaz: https://doaj.org/article/7bd3c484318e4b32a94800f23f28b865

The cost of a meal: factors influencing prey profitability in Australian fur seals

Autor: Nelle Meyers, Cassie N. Speakman, Nicole A.S.-Y. Dorville, Mark A. Hindell, Jayson M. Semmens, Jacquomo Monk, Alistair M.M. Baylis, Daniel Ierodiaconou, Andrew J. Hoskins, Greg J. Marshall, Kyler Abernathy, John P.Y. Arnould

Publikováno v: PeerJ, Vol 9, p e12608 (2021)

Knowledge of the factors shaping the foraging behaviour of species is central to understanding their ecosystem role and predicting their response to environmental variability. To maximise survival and reproduction, foraging strategies must balance th

Externí odkaz: https://doaj.org/article/10bb97915ace42169b168042285a46aa

Temporal and spatial isotopic variability of marine prey species in south-eastern Australia: Potential implications for predator diet studies.

Autor: Marlenne A Rodríguez-Malagón, Cassie N Speakman, Grace J Sutton, Lauren P Angel, John P Y Arnould

Publikováno v: PLoS ONE, Vol 16, Iss 11, p e0259961 (2021)

Stable isotope analyses, particularly of carbon (δ13C) and nitrogen (δ15N), are used to investigate ecological relationships among species. For marine predators, research has shown the main factors influencing their intra-specific and intra-individ

Externí odkaz: https://doaj.org/article/b46023723b72480e910fca9c4eb233a8

Key questions in marine mammal bioenergetics

Autor: Elizabeth A McHuron, Stephanie Adamczak, John P Y Arnould, Erin Ashe, Cormac Booth, W Don Bowen, Fredrik Christiansen, Magda Chudzinska, Daniel P Costa, Andreas Fahlman, Nicholas A Farmer, Sarah M E Fortune, Cara A Gallagher, Kelly A Keen, Peter T Madsen, Clive R McMahon, Jacob Nabe-Nielsen, Dawn P Noren, Shawn R Noren, Enrico Pirotta, David A S Rosen, Cassie N Speakman, Stella Villegas-Amtmann, Rob Williams

Publikováno v: McHuron, E A, Adamczak, S, Arnould, J P Y, Ashe, E, Booth, C, Don Bowen, W, Christiansen, F, Chudzinska, M, Costa, D P, Fahlman, A, Farmer, N A, Fortune, S M E, Gallagher, C A, Keen, K A, Madsen, P T, McMahon, C R, Nabe-Nielsen, J, Noren, D P, Noren, S R, Pirotta, E, Rosen, D A S, Speakman, C N, Villegas-Amtmann, S & Williams, R 2022, ' Key questions in marine mammal bioenergetics ', Conservation Physiology, vol. 10, no. 1, coac055 . https://doi.org/10.1093/conphys/coac055

This work was funded by the Marine Mammal Commission (MMC19-173). The Office of Naval Research funded the bioenergetic workshop (N000142012392) that provided support for this work. Bioenergetic approaches are increasingly used to understand how marin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40e5f57bcde412e10d762e4b8b4f43de
https://hdl.handle.net/10023/25928