Organized grouping mediates the environmental interactions of social squids

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Abstract/Contents

Abstract
A surge of recent research suggests that current and future shifts in marine species' distributions are ultimately driven by physiological responses to environmental variation. These observations and predictions are important because changes in species' distributions cause ecological change through community reorganization. However, they do not necessarily capture the full effects of behavioral adaptations on species' ecologies. Behaviors mediate the response of an organism's physiological processes to environmental variation, and can profoundly affect individual fitness, and thus population demography and community dynamics, under environmental variability. One of the most conspicuous and taxonomically widespread behaviors of animal life in the ocean is social behavior, or aggregation behavior related to inter-individual cohesion among conspecifics. Social interactions can buffer physiological responses to stressful conditions, shape behavioral patterns of individuals, and drive individual decision-making, with ecological and evolutionary consequences. While these impacts are becoming increasingly apparent in other systems, to date very few investigations explicitly consider the mechanisms and physiological effects of social behavior in the ocean. Squid, a predominantly predatory clade of highly motile molluscs, are a particularly compelling group of marine animals with which to develop such understanding. Many squids are social, occur across a range of environmental conditions, possess activity-limiting physiological constraints, visually communicate with complex pigmentation patterning, and demonstrate considerable ecological and life history flexibility. In this dissertation, I examine the patterns, mechanisms, and physiological effects of social behavior in open ocean squids, and how physiological sensitivities to environmental variability in squids can lead to new ecological interactions of potential consequence. Joining an emerging body of research, my dissertation work shows how social behaviors that confer emergent benefits are adapted to environmental gradients in the ocean. It also highlights the importance of social behavior in understanding habitat selection and the corresponding ecological changes in the ocean. As empirical and theoretical research continues to explore how social behavior shapes such ecological patterns, the understanding we develop will facilitate more sustainable harvest, more effective conservation, and more accurate predications under global change.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2021; ©2021
Publication date 2021; 2021
Issuance monographic
Language English

Creators/Contributors

Author Burford, Benjamin Patrick
Degree supervisor Denny, Mark W, 1951-
Thesis advisor Denny, Mark W, 1951-
Thesis advisor Goldbogen, Jeremy
Thesis advisor Robison, Bruce H
Thesis advisor Somero, George N
Degree committee member Goldbogen, Jeremy
Degree committee member Robison, Bruce H
Degree committee member Somero, George N
Associated with Stanford University, Department of Biology

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Benjamin Patrick Burford.
Note Submitted to the Department of Biology.
Thesis Thesis Ph.D. Stanford University 2021.
Location https://purl.stanford.edu/wd731dq0369

Access conditions

Copyright
© 2021 by Benjamin Patrick Burford
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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