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The primary objective of this project is to bring together Hawaii’s climate change scientists, Molokai’s traditional fishpond managers, and other natural resource managers to share scientific and cultural knowledge and work together as a team to identify adaptive management strategies for two of Molokai’s ancient fishponds. We will accomplish this through a short series of workshops. A secondary objective is to form new and strengthen existing partnerships so we can pool resources and better respond to climate change as an island. We will incorporate workshop results into our strategic plan for the ponds and upland areas, revise our K-6 educational curriculum, create a climate change video featuring Moloka’i kupuna,...
Hawaiian forest birds serve as an ideal group to explore the extent of climate change impacts on at-risk species. Avian malaria constrains many remaining Hawaiian forest bird species to high elevations where temperatures are too cool for malaria’s life cycle and its principal mosquito vector. The impact of climate change on Hawaiian forest birds has been a recent focus of Hawaiian conservation biology, and has centered on the links between climate and avian malaria. To elucidate the differential impacts of projected climate shifts on species with known varying niches, disease resistance and tolerance, we use a comprehensive database of species sightings, regional climate projections and ensemble distribution models...
Climate change is anticipated to affect freshwater resources, but baseline data on the functioning of tropical watersheds is lacking, limiting efforts that seek to predict how watershed processes, water supply, and streamflow respond to anticipated changes in climate and vegetation change, and to management. To address this data gap, we applied the distributed hydrology soil vegetation model (DHSVM) across 88 watersheds spanning a highly constrained, 4500 mm mean annual rainfall (MAR) gradient on Hawai‘i Island to quantify stream flow at 3-h time-steps for eight years in response to the independent and interactive effects of (1) large observed decrease in MAR; (2) projected warming and altered precipitation; and...
Since the beginning of the industrial revolution, the concentration of atmospheric CO2 has been rising due to the burning of fossil fuels. increased absorption of this CO2 by the oceans is lowering the seawater pH and aragonite saturation state (Ωar). This process is known as ocean acidification (OA). numerous studies have shown a direct correlation between declining ocean pH, declining Ωar, and declining coral growth, but the mechanism is not understood. Various experiments designed to evaluate the relative importance of pH, CO3 2–, Ωar, HCO3 –, aqueous CO2, total alkalinity, and total inorganic carbon (Ct) to coral calcification have led to opposing conclusions. A reanalysis of existing data suggests that the...
A landscape-based assessment of climate change vulnerability for all native Hawaiian plants Handout
A landscape-based assessment of climate change vulnerability for all native Hawaiian plants table with all vulnerability scores and associated data for all species
Publication titled “​Statistical downscaling of rainfall changes in Hawai‘i based on the CMIP5 global model projections”
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Sea-level rise (SLR) is one of the biggest threats to the Hawaiian coastline, and resource managers of coastal wetlands in Hawai‘i must begin planning now for future impacts. The majority of these impacts are expected to occur from 2040 – 2100. PICCC funded research from the University of Hawai’i at Mānoa has provided decision makers with tools to assist in adaptively managing the impacts of SLR at three coastal wetland environments in south Maui, north Maui, and James Campbell National Wildlife Refuge. They also ranked threats on the basis of input from wetland management experts to develop maps of SLR impacts and vulnerability. The researchers concluded that decision makers must quickly act to develop and implement...
The steep mountain slopes of Haleakalā Volcano (Maui, HI) support some of the most spatially diverse environments on the planet. Microclimates found across vertical gradients on the mountain slopes can change over relatively short differences in slope exposure and elevation and are strongly influenced by a persistent temperature inversion and northeast trade winds that are characteristic of this region. Eleven climate stations, which comprise the HaleNet climate network, have been monitoring climatic conditions along a 2030-m leeward (960 to 2990 m) and a 810-m windward (1650 to 2460 m) elevational transect, beginning as early as June of 1988. Hourly measurements of solar radiation, net radiation, relative humidity,...
Categories: Data, Publication; Types: Citation; Tags: Journal, Publication, completed
As the impacts of global climate change on species are increasingly evident, there is a clear need to adapt conservation efforts worldwide. Species vulnerability assessments (VAs) are increasingly used to summarize all relevant information to determine a species’ potential vulnerability to climate change and are frequently the first step in informing climate adaptation efforts. VAs commonly integrate multiple sources of information by utilizing a framework that distinguishes factors relevant to species exposure, sensitivity, and adaptive capacity. However, this framework was originally developed for human systems, and its use to evaluate species vulnerability has serious practical and theoretical limitations. By...
For many species the threats of climate change occur in a context of multiple existing threats. Given the current focus of global change ecology in identifying and understanding species vulnerable to climate change, we performed a global analysis to characterize the multi-threat context for species threatened by climate change. Utilizing 30,053 species from the International Union for Conservation of Nature’s (IUCN) Red List of Threatened Species, we sought to evaluate if species threatened by climate change are more likely threatened by a greater number of non-climatic threats than species not threatened by climate change. Our results show that species threatened by climate change are generally impacted by 21%...
Climate velocity is a concept derived from the intersection between ecology and climate change. It attempts to summarize the rate of climate change on a spatial scale as a movement rate (usually in units of kilometer per year) that a species would need to maintain to remain in its current climatological niche in the face of climate change. We now have downscaled climate models for the main Hawaiian Islands. In conjunction with the rainfall atlas of contemporary climate we have the information to calculate climate velocity for Hawaii, providing a useful index of the rate of climate change for conservation and resource managers. The goal of this project was to produce climate velocity maps for the seven main Hawaiian...
map background search result map search result map Temporal and Spatial Pattern of Sea-level Rise Impacts to Coastal Wetlands and Other Ecosystems Moloka`i Climate Collaboration: Bridging Climate Science and Traditional Culture Moloka`i Climate Collaboration: Bridging Climate Science and Traditional Culture Temporal and Spatial Pattern of Sea-level Rise Impacts to Coastal Wetlands and Other Ecosystems