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Impacts of climate change on reproductive phenology in tropical rainforests of Southeast Asia.

ABSTRACT: In humid forests in Southeast Asia, many species from dozens of plant families flower gregariously and fruit synchronously at irregular multi-year intervals^1-4. Little is known about how climate change will impact these community-wide mass reproductive events. Here, we perform a comprehensive analysis of reproductive phenology and its environmental drivers based on a monthly reproductive phenology record from 210 species in 41 families in Peninsular Malaysia. We find that the proportion of flowering and fruiting species decreased from 1976 to 2010. Using a phenology model, we find that 57% of species in the Dipterocarpaceae family respond to both drought and low-temperature cues for flowering. We show that low-temperature flowering cues will become less available in the future in the RCP2.6 and 8.5 scenarios, leading to decreased flowering opportunities of these species in a wide region from Thailand to the island of Borneo. Our results highlight the vulnerability of and variability in phenological responses across species in tropical ecosystems that differ from temperate and boreal biomes.

SUBMITTER: Numata S

PROVIDER: S-EPMC9023445 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature

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Impacts of climate change on reproductive phenology in tropical rainforests of Southeast Asia.

Numata Shinya S Yamaguchi Koharu K Shimizu Masaaki M Sakurai Gen G Morimoto Ayaka A Alias Noraliza N Noor Azman Nashatul Zaimah NZ Hosaka Tetsuro T Satake Akiko A

Communications biology 20220421 1

In humid forests in Southeast Asia, many species from dozens of plant families flower gregariously and fruit synchronously at irregular multi-year intervals<sup>1-4</sup>. Little is known about how climate change will impact these community-wide mass reproductive events. Here, we perform a comprehensive analysis of reproductive phenology and its environmental drivers based on a monthly reproductive phenology record from 210 species in 41 families in Peninsular Malaysia. We find that the proporti ...[more]

PMID: 35449443

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Project description:BackgroundThe role played by regional organisations in climate change adaptation and health is growing in Southeast Asia, with the Asian Development Bank and the Asia-Pacific Regional Forum on Health and Environment both supporting health and adaptation initiatives. There is, however, a lack of empirical research on the value that regional organisations add to national health-related adaptation. This qualitative research compares regional project and governance-based models of adaptation and health support in Southeast Asia, providing an analysis of strengths and weaknesses of each, as well as possibilities for improvement.MethodsAn existing adaptation assessment framework was modified for this research, and used as a guide to gather and analyse data from academic and grey literature, policy documents and interviews in order to qualitatively assess two organisations and their different models of adaptation and health support.ResultsThis research found differing strengths in the approaches to climate change and health used by the Asian Development Bank and by the Asia-Pacific Regional Forum on Health and Environment. The regional forum has vision, high levels of perceived legitimacy, and access to 'in-house' expertise in public health and climate change. Conversely, the Asian Development Bank has strengths in project management and access to significant financial resources to support work in climate change and health.ConclusionWhen regional organisations, such as the Asian Development Bank and the Asia-Pacific Regional Forum on Health and Environment, have membership and mandate overlaps, their work will likely benefit from well designed, institutionalised and incentivised coordination mechanisms. Coordination can reduce redundancies as well as the administrative workload on partner government agencies. In the case-study examined, the Asian Development Bank's project management expertise complements the vision and high levels of perceived legitimacy of the Asia-Pacific Regional Forum on Health and Environment, thus a coordinated approach could deliver improved adaptation and health outcomes.

Dataset Information

Impacts of climate change on reproductive phenology in tropical rainforests of Southeast Asia.

Publications

Impacts of climate change on reproductive phenology in tropical rainforests of Southeast Asia.

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