Mari-Vaughn Johnson’s scientific contributions

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Publications (1)

FIGURE 30.5. Changes in climate, as measured through key indicators (top panel), including sea surface temperature, sea level, and tropical cyclone intensity, result in impacts and risks (lower panel) for Pacific Island environments and communities, both on high volcanic islands and atolls. Improved monitoring of indicators is essential for tracking the pace and extent of climate change. Understanding of the connections between indicators and impacts is expanding, which supports adaptation efforts. Adapted from Keener et al. 2018, which was adapted from Keener et al. 2012.
FIGURE 30.10. Rising sea levels are increasing the frequency and magnitude of coastal flooding events. (top left) Cars travel through king tide flooding on Oʻahu, Hawaiʻi, in August 2019. (top right) High tide inundates a low-lying coastal area in Majuro, Marshall Islands, in February 2020. (bottom left) A residence on Oʻahu, Hawaiʻi, has collapsed due to coastal erosion during a large wave event in February 2022. (bottom right) American Sāmoa experienced flooding around homes in May 2021. Photo credits: (top left) Maya Walton via © Hawaiʻi Sea Grant King Tides Project, 2019 [CC BY 4.0]; (top right) Max Sudnovsky via © Hawaiʻi Sea Grant King Tides Project, 2020 [CC BY 4.0]; (bottom left) © Shellie Habel; (bottom right) Kelley Anderson Tagarino via © Hawaiʻi Sea Grant King Tides Project, 2021 [CC BY 4.0].
FIGURE 30.11. The maps show coastal flood protection that the top-most 3.28 feet (1 m) of coral reefs provide annually in American Sāmoa; Guam; Saipan and Tinian (Commonwealth of the Northern Mariana Islands); and Hawaiʻi. The maps display (a) the number of people per mile at risk and (b) the potential economic losses (in millions of dollars per mile) from direct building damages and indirect economic disruption from flooding. Adapted from Storlazzi et al. 2019.
FIGURE 30.12. Pacific Islands offer a diversity of ecosystems that include mangroves (top left), limestone forests (bottom left), tropical alpine habitats (top center), dry forests (bottom center), coral reefs (top right), and cloud forests (bottom right). Photo credits: (top left) Richard Mackenzie, USDA Forest Service; (top center) © Paul Krushelnycky, University of Hawaiʻi; (top right) © Underwater Earth / XL Catlin Seaview Survey / Christophe Bailhache; (bottom left) Christian Giardina, USDA Forest Service; (bottom center) Hawaiʻi Department of Land and Natural Resources; (bottom right) Lucas Fortini, USGS.
FIGURE 30.13. The annual percentage of total land area burned for seven Pacific Islands is equivalent to or greater than the percent area burned for western US states. Years examined are noted for each location. Figure credit: USDA Forest Service, USGS, NOAA NCEI, and CISESS NC.

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Ch. 30. Hawai‘i and US-Affiliated Pacific Islands
  • Chapter
  • Full-text available

November 2023

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121 Reads

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5 Citations

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Mari-Vaughn Johnson

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Phoebe Woodworth-Jefcoats

https://nca2023.globalchange.gov/chapter/30/ Climate change—especially sea level rise, altered rainfall patterns, and rising ocean and air temperatures—impairs access to clean water and healthy food, undermines human health, threatens cultural resources and the built environment, exacerbates inequities, and disrupts economic activity and diverse ecosystems in Hawaiʻi and the US-Affiliated Pacific Islands. Adaptation efforts that build upon community strengths and center local and Indigenous Knowledge systems improve resilience.

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Citations (1)

... For example, ballast water and hull fouling are two significant contributors to the spread of invasive species throughout marine environments, through both commercial vessels and smaller tourist and recreational watercraft (Ashton et al., 2022;Hewitt et al., 2009). Ensuring that maritime transport and traffic do not inadvertently transmit potentially harmful pathogens, algae, and invertebrates not only corresponds to transportation and economic efficiency but also protects local livelihoods and food security, as well as overall ecosystem health that conveys climate resilience (Frazier et al., 2023;Keener et al., 2018). In a recent example of timely and proactive intervention, the National Oceanic and Atmospheric Administration (NOAA) released a Strategy for Stony Coral Tissue Loss Disease Response and Prevention (Skrivanek & Wusinich-Mendez, 2020) to support effective communication, data sharing, and response to an emerging hazard to coral reefs in the U.S. Caribbean (Alvarez-Filip et al., 2022) before it is transported to other regions or internationally. ...

Reference:

Recommendations for incorporating invasive species into U.S. climate change adaptation planning and policy
Ch. 30. Hawai‘i and US-Affiliated Pacific Islands

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Mari-Vaughn Johnson

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Phoebe Woodworth-Jefcoats