Dataset Information

Autonomous adaptation to climate-driven change in marine biodiversity in a global marine hotspot.

ABSTRACT: While governments and natural resource managers grapple with how to respond to climatic changes, many marine-dependent individuals, organisations and user-groups in fast-changing regions of the world are already adjusting their behaviour to accommodate these. However, we have little information on the nature of these autonomous adaptations that are being initiated by resource user-groups. The east coast of Tasmania, Australia, is one of the world's fastest warming marine regions with extensive climate-driven changes in biodiversity already observed. We present and compare examples of autonomous adaptations from marine users of the region to provide insights into factors that may have constrained or facilitated the available range of autonomous adaptation options and discuss potential interactions with governmental planned adaptations. We aim to support effective adaptation by identifying the suite of changes that marine users are making largely without government or management intervention, i.e. autonomous adaptations, to better understand these and their potential interactions with formal adaptation strategies.

SUBMITTER: Pecl GT

PROVIDER: S-EPMC6883019 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Autonomous adaptation to climate-driven change in marine biodiversity in a global marine hotspot.

Pecl Gretta T GT Ogier Emily E Jennings Sarah S van Putten Ingrid I Crawford Christine C Fogarty Hannah H Frusher Stewart S Hobday Alistair J AJ Keane John J Lee Emma E MacLeod Catriona C Mundy Craig C Stuart-Smith Jemina J Tracey Sean S

Ambio 20190516 12

While governments and natural resource managers grapple with how to respond to climatic changes, many marine-dependent individuals, organisations and user-groups in fast-changing regions of the world are already adjusting their behaviour to accommodate these. However, we have little information on the nature of these autonomous adaptations that are being initiated by resource user-groups. The east coast of Tasmania, Australia, is one of the world's fastest warming marine regions with extensive c ...[more]

PMID: 31098878

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Project description:IntroductionEstimated future climate scenarios can be used to predict where hotspots of endemism may occur over the next century, but life history, ecological and genetic traits will be important in informing the varying responses within myriad taxa. Essential to predicting the consequences of climate change to individual species will be an understanding of the factors that drive genetic structure within and among populations. Here, I review the factors that influence the genetic structure of plant species in California, but are applicable elsewhere; existing levels of genetic variation, life history and ecological characteristics will affect the ability of an individual taxon to persist in the presence of anthropogenic change.Factors influencing the distribution of genetic variationPersistence in the face of climate change is likely determined by life history characteristics: dispersal ability, generation time, reproductive ability, degree of habitat specialization, plant-insect interactions, existing genetic diversity and availability of habitat or migration corridors. Existing levels of genetic diversity in plant populations vary based on a number of evolutionary scenarios that include endemism, expansion since the last glacial maximum, breeding system and current range sizes.Regional priorities and examplesA number of well-documented examples are provided from the California Floristic Province. Some predictions can be made for the responses of plant taxa to rapid environmental changes based on geographic position, evolutionary history, existing genetic variation, and ecological amplitude.Conclusions, solutions and recommendationsThe prediction of how species will respond to climate change will require a synthesis drawing from population genetics, geography, palaeontology and ecology. The important integration of the historical factors that have shaped the distribution and existing genetic structure of California's plant taxa will enable us to predict and prioritize the conservation of species and areas most likely to be impacted by rapid climate change, human disturbance and invasive species.

Dataset Information

Autonomous adaptation to climate-driven change in marine biodiversity in a global marine hotspot.

Publications

Autonomous adaptation to climate-driven change in marine biodiversity in a global marine hotspot.

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