Journal article
Using genomics to design and evaluate the performance of underwater forest restoration
The Journal of applied ecology, Vol.57(10), pp.1988-1998
10/2020
Metrics
30 Record Views
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Abstract
1. Restoration is an emerging intervention to reverse the degradation and loss of marine habitat-formers and the ecosystem services they underpin. Current best practice seeks to restore populations by transplanting donor individuals chosen to replicate genetic diversity and structure of extant, nearby populations. However, genetic characteristics are rarely empirically examined across generations, despite their potential role in influencing restoration success.
2. We used genomics to design a restoration program for lost underwater forests of Phyllospora comosa, a dominant forest-forming macroalga that went locally extinct from reefs off Sydney, Australia. Population genetic diversity and structure of nearby extant populations informed choice of donor sites. We tested whether donor provenance influenced adult transplant survival, condition (via metrics of epibiosis) and the genetic characteristics of recruits at restoration sites.
3. Extant populations of Phyllospora within a 100-km radius of Sydney comprised three distinct genetic clusters with similar levels of genetic diversity. We transplanted reproductive adults from two of these sites, with the aim of restoring five Phyllospora forests with levels of genetic structure and diversity similar to donor populations.
4. Donor provenance influenced survival and condition of transplanted adults and recruitment levels varied significantly among restoration sites. Yet, recruitment was rapid and genetic diversity and structure of the F1 generation resembled extant populations. This likely occurred because transplanted individuals reproduced synchronously and rapidly post-transplantation, prior to mortality of adult donor transplants.
5. Synthesis and applications. As restoration and the need to ‘future-proof’ marine ecosystems increase globally, it will be critical to understand and harness the role of donor provenance, genetic diversity and structure in restoration success. By incorporating ecological and genomic data into restoration design and assessment, this study demonstrates that evidence-based selection of macroalgal donors can result in F1 generation recruits with similar levels of genetic diversity and structure as extant populations, despite an effect of provenance on transplant survival and condition. This study also highlights the need for ongoing refinement of transplantation techniques to ensure future recruitment success.
Details
- Title
- Using genomics to design and evaluate the performance of underwater forest restoration
- Creators
- Georgina Wood (Author) - Centre for Marine Science and InnovationSchool of Biological, Earth and Environmental Sciences Sydney NSW AustraliaEzequiel M Marzinelli (Author) - School of Life and Environmental Sciences The University of Sydney Sydney NSW Australia, Singapore Centre for Environmental Life Sciences EngineeringNanyang Technological University Singapore Singapore, Sydney Institute of Marine Science Sydney NSW AustraliaAdriana Vergés (Author) - Centre for Marine Science and InnovationSchool of Biological, Earth and Environmental Sciences Sydney NSW Australia, Sydney Institute of Marine Science Sydney NSW AustraliaAlexandra H Campbell (Author) - USC Seaweed Research Group University of the Sunshine Coast Sunshine Coast QLD AustraliaPeter D Steinberg (Author) - Centre for Marine Science and InnovationSchool of Biological, Earth and Environmental Sciences Sydney NSW Australia, Singapore Centre for Environmental Life Sciences EngineeringNanyang Technological University Singapore Singapore, Sydney Institute of Marine Science Sydney NSW AustraliaMelinda A Coleman (Author) - Department of Primary Industries National Marine Science Centre Coffs Harbour NSW Australia
- Publication Details
- The Journal of applied ecology, Vol.57(10), pp.1988-1998
- Identifiers
- 991012927081002368
- Academic Unit
- National Marine Science Centre
- Language
- English
- Resource Type
- Journal article