Using isotopic niche dynamics to predict resiliency to climate change in an Arctic seabird
Resource limitation drives fitness-related decisions and constrains the ability of organisms to invest in energetically demanding life history stages. Environmental factors (e.g., temperature) play an important role in affecting resource availability and quality which can downstream effect the abili...
Main Author: | |
---|---|
Format: | Master Thesis |
Language: | English |
Published: |
University of Windsor
2020
|
Subjects: | |
Online Access: | https://scholar.uwindsor.ca/etd/8336 https://scholar.uwindsor.ca/context/etd/article/9341/viewcontent/uc.pdf |
id |
ftunivwindsor:oai:scholar.uwindsor.ca:etd-9341 |
---|---|
record_format |
openpolar |
spelling |
ftunivwindsor:oai:scholar.uwindsor.ca:etd-9341 2023-06-11T04:08:42+02:00 Using isotopic niche dynamics to predict resiliency to climate change in an Arctic seabird Parkinson, Kyle John Lee 2020-05-21T07:00:00Z application/pdf https://scholar.uwindsor.ca/etd/8336 https://scholar.uwindsor.ca/context/etd/article/9341/viewcontent/uc.pdf eng eng University of Windsor https://scholar.uwindsor.ca/etd/8336 https://scholar.uwindsor.ca/context/etd/article/9341/viewcontent/uc.pdf info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Electronic Theses and Dissertations Breeding Parameters Climate Change Isotopic Niche Stable Isotopes info:eu-repo/semantics/masterThesis 2020 ftunivwindsor 2023-05-06T19:09:36Z Resource limitation drives fitness-related decisions and constrains the ability of organisms to invest in energetically demanding life history stages. Environmental factors (e.g., temperature) play an important role in affecting resource availability and quality which can downstream effect the ability of individuals to invest in energetically demanding life history stages, including reproduction. Human-induced climate change is generating increasingly variable environmental conditions, impacting the abundance and distribution of prey items and therefore the ability of individuals to successfully reproduce, and these effects are especially pronounced in the Arctic. However, it is currently unknown whether Arctic organisms possess the ability to adjust foraging decisions and prey selection to overcome newly emerging environmental constraints. Quantifying stable isotopes in the tissues of consumers provides a minimally invasive method of inferring foraging niche; however, has yet to be validated as a method of predicting population-level resiliency to climate change. Seabirds are a useful system to test these linkages in because they are wide-ranging, predominantly oceanic-based group, reliant on marine-based resources and they are often widely distributed across polar regions. Using common eiders (Somateria mollissima), an Arctic diving seabird, as a model organism, this thesis examines the linkages between environmental variation, isotopic variation in foraging niche, and breeding parameters, as a means of predicting the resiliency of Arctic seabirds to the effects of climate change. Using a long term data set from a focal breeding colony, I found significant inter-annual and inter-breeding stage variation in isotopes and isotopic niche. Although environmental cues only weakly predicted variation in isotopic niche, variation in isotopic niche was a key predictor of breeding probability. Given that variation in isotopic niche has fitness-related impacts, I then took a species-wide approach to assess inter-colony ... Master Thesis Arctic Climate change Somateria mollissima University of Windsor, Ontario: Scholarship at UWindsor Arctic |
institution |
Open Polar |
collection |
University of Windsor, Ontario: Scholarship at UWindsor |
op_collection_id |
ftunivwindsor |
language |
English |
topic |
Breeding Parameters Climate Change Isotopic Niche Stable Isotopes |
spellingShingle |
Breeding Parameters Climate Change Isotopic Niche Stable Isotopes Parkinson, Kyle John Lee Using isotopic niche dynamics to predict resiliency to climate change in an Arctic seabird |
topic_facet |
Breeding Parameters Climate Change Isotopic Niche Stable Isotopes |
description |
Resource limitation drives fitness-related decisions and constrains the ability of organisms to invest in energetically demanding life history stages. Environmental factors (e.g., temperature) play an important role in affecting resource availability and quality which can downstream effect the ability of individuals to invest in energetically demanding life history stages, including reproduction. Human-induced climate change is generating increasingly variable environmental conditions, impacting the abundance and distribution of prey items and therefore the ability of individuals to successfully reproduce, and these effects are especially pronounced in the Arctic. However, it is currently unknown whether Arctic organisms possess the ability to adjust foraging decisions and prey selection to overcome newly emerging environmental constraints. Quantifying stable isotopes in the tissues of consumers provides a minimally invasive method of inferring foraging niche; however, has yet to be validated as a method of predicting population-level resiliency to climate change. Seabirds are a useful system to test these linkages in because they are wide-ranging, predominantly oceanic-based group, reliant on marine-based resources and they are often widely distributed across polar regions. Using common eiders (Somateria mollissima), an Arctic diving seabird, as a model organism, this thesis examines the linkages between environmental variation, isotopic variation in foraging niche, and breeding parameters, as a means of predicting the resiliency of Arctic seabirds to the effects of climate change. Using a long term data set from a focal breeding colony, I found significant inter-annual and inter-breeding stage variation in isotopes and isotopic niche. Although environmental cues only weakly predicted variation in isotopic niche, variation in isotopic niche was a key predictor of breeding probability. Given that variation in isotopic niche has fitness-related impacts, I then took a species-wide approach to assess inter-colony ... |
format |
Master Thesis |
author |
Parkinson, Kyle John Lee |
author_facet |
Parkinson, Kyle John Lee |
author_sort |
Parkinson, Kyle John Lee |
title |
Using isotopic niche dynamics to predict resiliency to climate change in an Arctic seabird |
title_short |
Using isotopic niche dynamics to predict resiliency to climate change in an Arctic seabird |
title_full |
Using isotopic niche dynamics to predict resiliency to climate change in an Arctic seabird |
title_fullStr |
Using isotopic niche dynamics to predict resiliency to climate change in an Arctic seabird |
title_full_unstemmed |
Using isotopic niche dynamics to predict resiliency to climate change in an Arctic seabird |
title_sort |
using isotopic niche dynamics to predict resiliency to climate change in an arctic seabird |
publisher |
University of Windsor |
publishDate |
2020 |
url |
https://scholar.uwindsor.ca/etd/8336 https://scholar.uwindsor.ca/context/etd/article/9341/viewcontent/uc.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Somateria mollissima |
genre_facet |
Arctic Climate change Somateria mollissima |
op_source |
Electronic Theses and Dissertations |
op_relation |
https://scholar.uwindsor.ca/etd/8336 https://scholar.uwindsor.ca/context/etd/article/9341/viewcontent/uc.pdf |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ |
_version_ |
1768382158017134592 |