Modelling southern elephant seals Mirounga leonina using an individual-based model coupled with a dynamic energy budget

Higher trophic-level species are an integral component of any marine ecosystem. Despite their importance, methods for representing these species in end-to-end ecosystem models often have limited representation of life histories, energetics and behaviour. We built an individual-based model coupled wi...

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Published in:PloS one 2018-03, Vol.13 (3), p.e0194950
Main Authors: Goedegebuure, Merel, Melbourne-Thomas, Jessica, Corney, Stuart P, McMahon, Clive R, Hindell, Mark A
Format: Article
Language:English
Subjects:
Animal behavior
Animal lactation
Animals
Bioenergetics
Biology
Biology and Life Sciences
Breastfeeding & lactation
Breeding success
Computer simulation
Earth Sciences
Ecology
Ecosystem biology
Ecosystem models
Energy
Energy budget
Energy consumption
Energy Metabolism
Energy requirements
Environment models
Environmental aspects
Environmental changes
Fecundity
Female
Food
Life cycles (Biology)
Life history
Life span
Male
Marine ecosystems
Marine mammals
Medicine and Health Sciences
Mirounga leonina
Models, Statistical
Parameter sensitivity
Physical sciences
Population
Population Dynamics
Predatory Behavior
Pregnancy
Representations
Reproduction
Research and analysis methods
Resource availability
Seals
Seals, Earless - metabolism
Seals, Earless - physiology
Sensitivity analysis
Southern elephant seal
Survival
Theory
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cited_by cdi_FETCH-LOGICAL-c692t-ea71fe0c16afd19655f10261ef00193db15b2cb42e1188c33f4c9ba38b70a35e3
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container_issue 3
container_start_page e0194950
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creator Goedegebuure, Merel
Melbourne-Thomas, Jessica
Corney, Stuart P
McMahon, Clive R
Hindell, Mark A
description Higher trophic-level species are an integral component of any marine ecosystem. Despite their importance, methods for representing these species in end-to-end ecosystem models often have limited representation of life histories, energetics and behaviour. We built an individual-based model coupled with a dynamic energy budget for female southern elephant seals Mirounga leonina to demonstrate a method for detailed representation of marine mammals. We aimed to develop a model which could i) simulate energy use and life histories, as well as breeding traits of southern elephant seals in an emergent manner, ii) project a stable population over time, and iii) have realistic population dynamics and structure based on emergent life history features (such as age at first breeding, lifespan, fecundity and (yearling) survival). We evaluated the model's ability to represent a stable population over long time periods (>10 generations), including the sensitivity of the emergent properties to variations in key parameters. Analyses indicated that the model is sensitive to changes in resource availability and energy requirements for the transition from pup to juvenile, and juvenile to adult stage. This was particularly the case for breeding success and yearling survival. This model is suitable for use as a standalone tool for investigating the impacts of changes to behaviour and population responses of southern elephant seals.
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subjects Animal behavior
Animal lactation
Animals
Bioenergetics
Biology
Biology and Life Sciences
Breastfeeding & lactation
Breeding success
Computer simulation
Earth Sciences
Ecology
Ecosystem biology
Ecosystem models
Energy
Energy budget
Energy consumption
Energy Metabolism
Energy requirements
Environment models
Environmental aspects
Environmental changes
Fecundity
Female
Food
Life cycles (Biology)
Life history
Life span
Male
Marine ecosystems
Marine mammals
Medicine and Health Sciences
Mirounga leonina
Models, Statistical
Parameter sensitivity
Physical sciences
Population
Population Dynamics
Predatory Behavior
Pregnancy
Representations
Reproduction
Research and analysis methods
Resource availability
Seals
Seals, Earless - metabolism
Seals, Earless - physiology
Sensitivity analysis
Southern elephant seal
Survival
Theory
title Modelling southern elephant seals Mirounga leonina using an individual-based model coupled with a dynamic energy budget
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