Individuality counts: A new comprehensive approach to foraging strategies of a tropical marine predator

JFL Schwarz, S Mews, EJ DeRango, R Langrock… - Oecologia, 2021 - Springer
Foraging strategies are of great ecological interest, as they have a strong impact on the
fitness of an individual and can affect its ability to cope with a changing environment. Recent …

Spatio-temporal diet variability of the California sea lion Zalophus californianus in the southern California Current Ecosystem

MS Lowry, SE Nehasil, JE Moore - Marine Ecology Progress Series, 2022 - int-res.com
Characterizing predator diets is essential to understanding food web dynamics. We
investigated the dietary breadth and variation of the California sea lion (CSL) Zalophus …

Feeding morphology and body size shape resource partitioning in an eared seal community

AM Valenzuela-Toro, R Mehta… - Biology …, 2023 - royalsocietypublishing.org
Body size and feeding morphology influence how animals partition themselves within
communities. We tested the relationships among sex, body size, skull morphology and …

A state-dependent model for assessing the population consequences of disturbance on income-breeding mammals

EA McHuron, LK Schwarz, DP Costa, M Mangel - Ecological Modelling, 2018 - Elsevier
Human activities continue to expand in marine and terrestrial environments, leading to
increased interactions with wildlife that can have negative impacts on population dynamics …

When physiology and ecology meet: the interdependency between foraging ecology and reproduction in otariids

DP Costa, AM Valenzuela-Toro - … and behavioral ecology of otariids and …, 2021 - Springer
Otariids exhibit a semiaquatic lifestyle, feeding in the water and breeding and resting on
land. Fur seals and sea lions, the two groups of otariids, exhibit an overall income breeding …

[HTML][HTML] Unexpected decadal density-dependent shifts in California sea lion size, morphology, and foraging niche

AM Valenzuela-Toro, DP Costa, R Mehta, ND Pyenson… - Current Biology, 2023 - cell.com
Many marine mammal populations are recovering after long eras of exploitation. 1, 2 To
what degree density-dependent body size declines in recovering species reflect a general …

Characterizing habitat suitability for a central‐place forager in a dynamic marine environment

DK Briscoe, S Fossette, KL Scales… - Ecology and …, 2018 - Wiley Online Library
Characterizing habitat suitability for a marine predator requires an understanding of the
environmental heterogeneity and variability over the range in which a population moves …

Intraspecific variation in feeding strategies of Galapagos sea lions: A case of trophic specialization

D Páez-Rosas, S Villegas-Amtmann, D Costa - PLoS One, 2017 - journals.plos.org
The trophic behavior of marine predators varies according to the level of competition to
which they are exposed. In general, populations that inhabit lower productivity systems face …

Time domains of hypoxia adaptation—elephant seals stand out among divers

MS Tift, PJ Ponganis - Frontiers in Physiology, 2019 - frontiersin.org
In this Opinion, adaptations to hypoxia are examined during the short time domains of breath
holds from three accomplished diving animals: northern elephant seals (Mirounga …

Sex-differences in fine-scale home-range use in an upper-trophic level marine predator

DC Lidgard, WD Bowen, SJ Iverson - Movement ecology, 2020 - Springer
Background The distribution of prey in the ocean is spatially and temporally patchy. How
predators respond to this prey patchiness may have consequences on their foraging …