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These data are netcdf files of the projected timing of the onset of thermal stress severe enough (>8 Degree Heating Weeks) to cause coral bleaching 2x per decade and 10x per decade (annual) under emissions scenarios RCP8.5 and RCP4.5. The projected timing (a year between 2006 and 2100) is the data value. Values are only shown for the ~60,000 four-km pixels where coral reefs are known to occur.
This report identifies needs and opportunities in the United States Affiliated Pacific Islands (USAPI) region relative to climate change science, management, and adaptation strategies. The region includes the territories of Guam and American Samoa, the Commonwealth of the Northern Marianas (CNMI), and the independent states of Palau, Federated States of Micronesia (FSM), and the Republic of the Marshall Islands (RMI). This inventory is responsive to the Pacific Islands Climate Science Center (PICSC) Strategic Science Agenda and its articulation with the region.
Categories: Data, Publication; Types: Citation; Tags: Pacific Islands CASC
A beautiful plant found only on Haleakala may become rarer. A recent study coauthored by UH researcher Paul Krushelnycky shows changing climate patterns allowing fog and rain to reach higher elevations are threatening the plant but he cautions all is not lost. He joined us in our studio to tell us more. Paul is currently Assistant Researcher, at the College of Tropical Agriculture and Human Resources at the University of Hawaii in Manoa.
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This data set describes the predicted daily climate (temperature and rainfall) for low, mid, and high-elevations on Mona Loa, Island of Hawaii from 2098-2100. Climate predictions are based on 3 alternative climate scenarios (RCP 4.5, A1B, and RCP 8.5) - see Liao et al. 2015 for more details and climate references. The predicted daily risk of susceptible Hawaiian honeycreepers are based on the daily climate data, mosquito abundance and other factors. Also see Samuel et al. 2011 The dynamics, transmission, and population impacts of avian malaria in native Hawaiian birds: a modeling approach. Ecological Applications 21:2960-2973 for description of the epidemiological model used for avian malaria risk predictions.
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This folder contains 7 excel files with data from a household questionnaire survey (N=199) conducted for the Marshall Islands Climate and Migration project. The fieldwork took place in March and April 2017. Besides the excel file, the folder also contains the original questionnaire in PDF format. The questionniare looked at livelihood, perceptions of climate change and ecosystem services and migration behaviour. The excel files are 1 file for the main questionnaire data and 6 additional files with data from tables in the questionnaire. Each variable in the questionnaire starts with a Leter (A-K) and a number. This refers to the question number in the questionnaire. The databases uses 3 codes for missing values:...
(1) This written report summarizes and synthesizes results of literature review, interviews, and workshops, providing the scientific basis for and extension strategies for the management recommendations provided in the "green website" [Data Input New Collection]. The report includes an addendum regarding reference bibliographies and a references list with citations. (2) Selected, unusual references that are not readily available online or through standard academic sources were collected by the project. (3) Selected photographs are retained by the project in electronic form.
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The Pacific Islands Climate Adaptation Science Center (PI CASC) supports sustainability and climate adaptation in communities across the Pacific Islands by providing natural and cultural resource managers with access to actionable science specific to the region. PI CASC is hosted by the University of Hawaiʻi at Mānoa (UHM) with consortium partners at the University of Hawaiʻi at Hilo (UHH) and the University of Guam (UOG). During the period of 2019 - 2024, the PI CASC consortium will strive to i) build resiliency and sustainability in ecosystems and communities to climate change impacts; ii) strive to develop the best actionable climate science, while maintaining a non-advocacy stance; and iii) apply the elements...
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PI-CASC regularly interacts with a diverse and extensive network of stakeholder organizations at federal, territory, state, county, and local levels across the Pacific Region, supporting communication and iterative problem solving between researchers, managers, and decision makers. In addition to these partnerships, PI-CASC has two important ongoing collaborative initiatives. Pacific Islands-Alaska CASC collaboration The PI-AK CASC collaboration is aimed at bringing together scientist and resource managers from the Pacific and Alaska regions to share insights on related climate adaptation challenges in Ridge-to-Reef (R2R) and Icefield-to-Ocean (I2O) ecosystems. Similarities in landscapes and communities in these...
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Landscape-scale conservation of threatened and endangered species is often challenged by multiple, sometimes conflicting, land uses. In Hawaiʻi, efforts to conserve native forests have come into conflict with objectives to sustain non-native game mammals, such as feral pigs, goats, and deer, for subsistence and sport hunting. Maintaining stable or increasing game populations represents one of the greatest obstacles to the recovery of Hawaii’s 425 threatened and endangered plant species. Many endemic Hawaiian species have declined and become endangered as a result of herbivorous non-native game mammals. Meanwhile, other environmental changes, including the spread of invasive grasses and changing precipitation patterns...
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Hawaiʻi is considered a worldwide biodiversity hotspot, with nearly 90 percent of its native plants found nowhere else in the world. However, about half of these native plants are imperiled by threats including human development, non-native species, and climate change. Through this project, scientists modeled the relative vulnerability of over 1,000 native plant species to the effects of climate change. A panel of experts in Hawaiian plant species assisted with the development of the model and verified its results. From the model, researchers were able to develop a vulnerability score for each plant species and identify categories of species with high, medium, and low vulnerability to climate change. This information...
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For the past few years, “king tides,” or the highest tides of the year, have been occurring more frequently and significantly affecting coastal environments across Hawaiʻi. Now, disappearing beaches and waves crashing over roadways are seemingly the “new normal.” In response, the state of Hawaiʻi is implementing adaptation strategies to combat tidal flooding in coastal areas. While flood management strategies are being implemented in urban areas, less is known about how tidal flooding, and associated inundation into surface and groundwater, might influence watershed dynamics and the native animals that depend on estuarine environments where freshwater meets the sea. Efforts for biocultural restoration of ecosystem...
This downloadable PDF research feature summarizes the Pacific Islands Climate Science Center-supported project "Modeling Climate-Driven Changes to Dominant Vegetation in the Hawaiian Islands".
Abstract (from http://climatechangeresponses.biomedcentral.com/articles/10.1186/s40665-016-0015-2): Background Detailed assessments of species responses to climate change are uncommon, owing to the limited nature of most ecological and local climate data sets. Exceptions, such as the case of the Haleakalā silversword, can provide important insights into the complexity of biological responses to changing climate conditions. We present a time series of decadal population censuses, combined with a pair of early population projections, which together span the past 80 years of demographic history for this alpine plant. Results The time series suggests a strong population recovery from the 1930s through the 1980s, likely...
This final report is for the Pacific Islands CSC funded project "Very Fine Resolution Dynamical Downscaling of Past and Future Climates for Assessment of Climate Change Impacts on the Islands of O`ahu and Kaua`i".
Categories: Publication; Types: Citation; Tags: Pacific Islands CASC
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As a low-lying coastal nation, the Republic of the Marshall Islands is at the forefront of exposure to climate change impacts. The Republic of the Marshall Islands has a strong dependence on natural resources and biodiversity not only for food and income but also for culture and livelihood. However, these resources are threatened by rising sea levels and associated coastal hazards (storm surges, saltwater intrusion, erosion, etc.). High-quality data for atoll ‘ridge to reef’ (land and ocean) areas are needed to provide remote communities with the tools and strategies to make adaptation efforts before disasters occur. Although the Republic of the Marshall Islands’ National Strategic Plans recognize the need to...
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Loko iʻa (Hawaiian fishponds) are an advanced, extensive form of aquaculture found nowhere else in the world. Loko iʻa practices are the result of over a thousand years of intergenerational knowledge, experimentation, and adaptation, and once produced over 2 million pounds of fish per year throughout the Hawaiian Islands. These fishponds provided a consistent and diverse supply of fish when ocean fishing was not possible or did not yield enough supply. In many ways, loko iʻa are foundational to traditional aquaculture in Hawai‘i and have the potential to provide food security that contributes to greater coastal community resilience and economic autonomy. Today, changes in coastal and hydrological processes, including...
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Hawaiian shorelines and near-shore waters have long been used for cultural activities, food gathering and fishing, and recreation. As seascapes are physically altered by changing climate, the ways in which people experience these environments will likely change as well. Local perspectives of how seascapes are changing over time can help managers better understand and manage these areas for both natural persistence and human use. For this project, researchers conducted interviews and surveys of surfers and other ocean users to gather observations and perceptions of change over time at Hilo Bay, Hawaiʻi. They combined these results with historical data on public beach use and biophysical data from monitoring buoys...
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The beaches of the Hawaiian Islands attract nearly 9 million visitors each year, who inject around $15.6 billion into the state’s economy and support almost 200,000 jobs. Beyond their economic importance, Hawaiian beaches are also culturally and ecologically valuable. However, climate change driven sea-level rise is causing many beaches to disappear, endangering property, infrastructure, and critical habitats. The goal of this project was to develop a method for forecasting erosion-vulnerable beach areas that could be used in coastal management planning. Researchers focused on the island of Kauaʻi, modeling beach response to rising sea level over the next century and producing maps that provide information about...
A cocktail of land-based sources of pollution threatens coral reef ecosystems, and addressing these has become a key management and policy challenge in the State of Hawaii, other US territories, and globally. In West Maui, Hawai'i, nearly one quarter of all living corals were lost between 1995 and 2008. Onsite disposal systems (OSDS) for sewage leak contaminants into drinking water sources and nearshore waters. In recognition of this risk, the Hawaii State Department of Health (DOH) is prioritizing areas for cesspool upgrades. Independently, we applied a decision analysis process to identify priority areas to address sewage pollution from OSDS in West Maui, with the objective of reducing nearshore coral reef exposure...
The Hawaiian Islands are home to a variety of native species that have been subject to numerous threats including development of habitat for human use, predation by introduced herbivores, and competition with invasive plant species. In addition to these threats global climate change is expected to increase temperature and alter patterns of precipitation in Hawaii. This project models the relative vulnerability of native plant species to the effects of climate change, in order to assist resource managers in effectively allocating limited resources to efficiently preserve and protect current and future habitat for native plants. We modeled vulnerability by creating an expert system – a network model linking biological...


map background search result map search result map Establishing Climate Change Vulnerability Rankings for Hawaiian Native Plants Forecasting Beach Loss from Sea-Level Rise on the Island of Kauaʻi Changing Hawaiian Seascapes and Their Management Implications Predicted climate and avian malaria risk to Hawaiian honeycreepers on the Island of Hawaii from 2098-2100 Managing Non-native Game Mammals to Reduce Future Conflicts with Native Plant Conservation in Hawai‘i Science Needs Assessment to Support Management of Loko Iʻa (Hawaiian Fishpond) Resources and Practices Critical to the Native Hawaiian Community RMI Questionnaire data of the Marshall Islands Climate and Migration Project Enhancing Stakeholder Capacity for Coastal Inundation Assessments in the Marshall Islands Pacific Islands Climate Adaptation Science Center Consortium - Hosted by University of Hawai‘i, Mānoa (2019-2024) Regional Collaborations Effect of Extreme Tidal Events on Future Sea-Level Rise Scenarios for He‘eia Fish Communities undergoing Ahupua‘a Restoration Forecasting Beach Loss from Sea-Level Rise on the Island of Kauaʻi Predicted climate and avian malaria risk to Hawaiian honeycreepers on the Island of Hawaii from 2098-2100 Changing Hawaiian Seascapes and Their Management Implications Establishing Climate Change Vulnerability Rankings for Hawaiian Native Plants RMI Questionnaire data of the Marshall Islands Climate and Migration Project Enhancing Stakeholder Capacity for Coastal Inundation Assessments in the Marshall Islands Science Needs Assessment to Support Management of Loko Iʻa (Hawaiian Fishpond) Resources and Practices Critical to the Native Hawaiian Community Effect of Extreme Tidal Events on Future Sea-Level Rise Scenarios for He‘eia Fish Communities undergoing Ahupua‘a Restoration Pacific Islands Climate Adaptation Science Center Consortium - Hosted by University of Hawai‘i, Mānoa (2019-2024) Regional Collaborations