Variation in thermal sensitivity among coral genotypes, species, and habitats: Implications for improved restoration
Global climate change has rapidly altered marine systems, resulting in negative impacts on tropical reef-building corals around the globe. As the leading driver of coral bleaching, ocean warming disrupts the mutualistic relationship between reef-building corals and their algal symbionts (Symbiodinac...
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University of North Carolina at Chapel Hill Graduate School
2023
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ftcarolinadr:cdr.lib.unc.edu:9w032d45p 2023-11-12T04:22:47+01:00 Variation in thermal sensitivity among coral genotypes, species, and habitats: Implications for improved restoration Gould, Katelyn Jean Bruno, John Castillo, Karl Goodbody-Gringley, Gretchen Kingsolver, Joel Lohmann, Kenneth 2023 https://doi.org/10.17615/qr5q-pp87 https://cdr.lib.unc.edu/downloads/kw52jk31f?file=thumbnail https://cdr.lib.unc.edu/downloads/kw52jk31f English eng University of North Carolina at Chapel Hill Graduate School https://doi.org/10.17615/qr5q-pp87 https://cdr.lib.unc.edu/downloads/kw52jk31f?file=thumbnail https://cdr.lib.unc.edu/downloads/kw52jk31f Coral Restoration Local Adaptation Thermal Performance Curves Stress-mediation Coral Transplantation Wildlife conservation Ecology Physiology Dissertation 2023 ftcarolinadr https://doi.org/10.17615/qr5q-pp87 2023-10-21T22:23:24Z Global climate change has rapidly altered marine systems, resulting in negative impacts on tropical reef-building corals around the globe. As the leading driver of coral bleaching, ocean warming disrupts the mutualistic relationship between reef-building corals and their algal symbionts (Symbiodinaceae) in a process known as coral bleaching. During periods of elevated sea temperatures corals expel their symbionts causing declines in metabolic and physiological function. Mass bleaching events deteriorate coral reefs, reducing the ecosystem services they provide including foundational habitat which host 32 of 34 recognized marine phyla of the ocean’s biodiversity, impacts on reef fisheries, physically protecting coasts from storms by reducing erosion, and elevates economic income of coastal communities. To reduce the impacts of warming, conservationists are attempting to protect and revitalize these systems by identifying resilient reefs. The goal is then to enhance coral abundance and preserve coral genetic variation with coral farming, and related restoration efforts. These activities are relatively new and identifying resilient corals and refining coral restoration techniques are only just beginning. Identifying how different coral species respond to restoration activities and their responses to temperature in general is critical in understanding coral persistence in the future. This dissertation examines the effect temperature has on coral survival, metabolism, and physiology from three conservation perspectives to enhance restoration methodologies in Caribbean and north Atlantic coral ecosystems. In Chapter 1, I identified a potential thermal refuge habitat in Bermuda by comparing thermal tolerance, optima, and sensitivities of four coral species from shallow and upper-mesophotic reef habitats. In Chapter 2, I used metabolic thermal performance curves (respiration and gross photosynthesis) to assess the effectiveness of stress-mediating interventions to alter thermal performance during heat stress, for use in ... Doctoral or Postdoctoral Thesis North Atlantic Carolina Digital Repository (UNC - University of North Carolina) |
institution |
Open Polar |
collection |
Carolina Digital Repository (UNC - University of North Carolina) |
op_collection_id |
ftcarolinadr |
language |
English |
topic |
Coral Restoration Local Adaptation Thermal Performance Curves Stress-mediation Coral Transplantation Wildlife conservation Ecology Physiology |
spellingShingle |
Coral Restoration Local Adaptation Thermal Performance Curves Stress-mediation Coral Transplantation Wildlife conservation Ecology Physiology Gould, Katelyn Jean Variation in thermal sensitivity among coral genotypes, species, and habitats: Implications for improved restoration |
topic_facet |
Coral Restoration Local Adaptation Thermal Performance Curves Stress-mediation Coral Transplantation Wildlife conservation Ecology Physiology |
description |
Global climate change has rapidly altered marine systems, resulting in negative impacts on tropical reef-building corals around the globe. As the leading driver of coral bleaching, ocean warming disrupts the mutualistic relationship between reef-building corals and their algal symbionts (Symbiodinaceae) in a process known as coral bleaching. During periods of elevated sea temperatures corals expel their symbionts causing declines in metabolic and physiological function. Mass bleaching events deteriorate coral reefs, reducing the ecosystem services they provide including foundational habitat which host 32 of 34 recognized marine phyla of the ocean’s biodiversity, impacts on reef fisheries, physically protecting coasts from storms by reducing erosion, and elevates economic income of coastal communities. To reduce the impacts of warming, conservationists are attempting to protect and revitalize these systems by identifying resilient reefs. The goal is then to enhance coral abundance and preserve coral genetic variation with coral farming, and related restoration efforts. These activities are relatively new and identifying resilient corals and refining coral restoration techniques are only just beginning. Identifying how different coral species respond to restoration activities and their responses to temperature in general is critical in understanding coral persistence in the future. This dissertation examines the effect temperature has on coral survival, metabolism, and physiology from three conservation perspectives to enhance restoration methodologies in Caribbean and north Atlantic coral ecosystems. In Chapter 1, I identified a potential thermal refuge habitat in Bermuda by comparing thermal tolerance, optima, and sensitivities of four coral species from shallow and upper-mesophotic reef habitats. In Chapter 2, I used metabolic thermal performance curves (respiration and gross photosynthesis) to assess the effectiveness of stress-mediating interventions to alter thermal performance during heat stress, for use in ... |
author2 |
Bruno, John Castillo, Karl Goodbody-Gringley, Gretchen Kingsolver, Joel Lohmann, Kenneth |
format |
Doctoral or Postdoctoral Thesis |
author |
Gould, Katelyn Jean |
author_facet |
Gould, Katelyn Jean |
author_sort |
Gould, Katelyn Jean |
title |
Variation in thermal sensitivity among coral genotypes, species, and habitats: Implications for improved restoration |
title_short |
Variation in thermal sensitivity among coral genotypes, species, and habitats: Implications for improved restoration |
title_full |
Variation in thermal sensitivity among coral genotypes, species, and habitats: Implications for improved restoration |
title_fullStr |
Variation in thermal sensitivity among coral genotypes, species, and habitats: Implications for improved restoration |
title_full_unstemmed |
Variation in thermal sensitivity among coral genotypes, species, and habitats: Implications for improved restoration |
title_sort |
variation in thermal sensitivity among coral genotypes, species, and habitats: implications for improved restoration |
publisher |
University of North Carolina at Chapel Hill Graduate School |
publishDate |
2023 |
url |
https://doi.org/10.17615/qr5q-pp87 https://cdr.lib.unc.edu/downloads/kw52jk31f?file=thumbnail https://cdr.lib.unc.edu/downloads/kw52jk31f |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://doi.org/10.17615/qr5q-pp87 https://cdr.lib.unc.edu/downloads/kw52jk31f?file=thumbnail https://cdr.lib.unc.edu/downloads/kw52jk31f |
op_doi |
https://doi.org/10.17615/qr5q-pp87 |
_version_ |
1782337732239949824 |