Pacific Island Ecosystems Research Center

Publications

Filter Total Items: 471
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Year Published: 2020

Use of whole blood samples preserved in DNA lysis buffer for serological detection of avian malaria in Hawaiian forest birds

Recent detections of avian malarial parasites in native and non-native forest birds at Hakalau Forest National Wildlife Refuge and reports of epidemic transmission of the disease in high elevation habitats as well as controversy over accuracy of the PCR (polymerase chain reaction) diagnostic test that was being used led to a request by U.S. Fish...

Atkinson, Carter T.
Atkinson, C. T. 2020. Use of whole blood samples preserved in DNA lysis buffer for serological detection of avian malaria in Hawaiian forest birds. Hawai`i Cooperative Studies Unit Technical Report HCSU-TR094, University of Hawai'i at Hilo, Hilo, Hawai‘i. Available: http://hdl.handle.net/10790/5287.

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Year Published: 2020

Local to landscape-level controls of water fluxes through Hawaiian forests: Effects of invasive animals and plants on soil infiltration capacity across substrate and moisture gradients

Given the potential effect of invasive plants and animals to water fluxes through forests, the invasive-driven degradation of native ecosystems is a topic of great concern for many downstream land and water managers. The infiltration rate determines the partitioning between runoff and infiltration into soil in Hawaiian forests and beyond. Thus, to...

Fortini, Lucas B.; Leopold, Christina; Perkins, Kimberlie; Chadwick, Oliver A.; Yelenik, Stephanie G.; Jacobi, James D.; Bishaw, Kaiena; Gregg, Makani; Rosa, Sarah N.
Fortini, L. B., C. Leopold, K. Perkins, O. Chadwick, S. Yelenik, J. Jacobi, K. Bishaw, II, M. Gregg, and S. Rosa. 2020. Local to landscape-level controls of water fluxes through Hawaiian forests: Effects of invasive animals and plants on soil infiltration capacity across substrate and moisture gradients. Hawai`i Cooperative Studies Unit Technical Report HCSU-TR095, University of Hawai'i at Hilo, Hilo. Available: http://hdl.handle.net/10790/5282.

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Year Published: 2020

Fostering real-time climate adaptation: Analyzing past, current, and forecast temperature to understand the dynamic risk to Hawaiian honeycreepers from avian malaria

Various vector control options are increasingly being considered to safeguard forest birds in their natural habitats from avian malaria transmission. However, vector control options require localized deployment that is not logistically, ethically, ecologically, nor economically viable everywhere and all the time. Based on thermal tolerances of the...

Fortini, Lucas B.; Kaiser, Lauren R.; Lapointe, Dennis

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Year Published: 2020

Hawaiian hoary bat (Lasiurus cinereus semotus) acoustic monitoring at Hawaii Army National Guard (HIARNG) installations statewide

Acoustic sampling for occurrence of the endangered Hawaiian hoary bat (Lasiurus cinereus semotus) was conducted at 18 “long-term” acoustic monitoring stations on 12 Hawai‘i Army National Guard (HIARNG) installations across the islands of Hawai‘i, Maui, Moloka‘i, O‘ahu, and Kaua‘i between 2012 and 2018. Bats were confirmed as present at 10 of these...

Montoya-Aiona, Kristina; Pinzari, Corinna; Peck, Robert W; Brinck, Kevin W.; Bonaccorso, Frank J

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Year Published: 2020

Response to terrestrial nest predators among endemic and introduced Hawaiian birds

Birds free from nest predators for long periods may either lose the ability to recognize and respond to predators or retain antipredator responses if they are not too costly. How these alternate scenarios play out has rarely been investigated in an avian community whose members have different evolutionary histories. We presented models of two nest...

Cummins, George C; Theimer, Tad C; Paxton, Eben H.

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Year Published: 2020

Hawaii as a microcosm: Advancing the science and practice of managing introduced and invasive species

Invasive species are a leading driver of global change, with consequences for biodiversity and society. Because of extraordinary rates of endemism, introduction, and extinction, Hawaii offers a rich platform for exploring the cross-disciplinary challenges of managing invasive species in a dynamic world. We highlight key successes and shortcomings...

Pejchar, Liba; Lepczyk, Christopher A.; Fantle-Lepczyk, Jean E; Hess, Steve C.; Johnson, M. Tracy; Leopold, Christina; Marchetti, Michael P.; McClure, Katherine M; Sheils, Aaron B

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Year Published: 2019

Facilitated adaptation for conservation – Can gene editing save Hawaii's endangered birds from climate driven avian malaria?

Avian malaria has played a significant role in causing extinctions, population declines, and limiting the elevational distribution of Hawaiian honeycreepers. Most threatened and endangered honeycreepers only exist in high-elevation forests where the risk of malaria infection is limited. Because Culex mosquito vectors and avian malaria dynamics are...

Samuel, Michael D.; Liao, Wei; Atkinson, Carter T.; Lapointe, Dennis

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Year Published: 2019

Frequent use of upland habitats by the endangered Hawaiian stilt (Himantopus mexicanus knudseni)

The Hawaiian Stilt, or Ae’o (Himantopus mexicanus knudseni), is an endangered waterbird endemic to the Hawaiian Islands. Loss of suitable wetland habitats due to anthropogenic development is a leading cause for decline, as well as the introduction of non-native predators and invasive wetland plants. This study fitted four Hawaiian Stilts with GPS...

Kawasaki, Martha; Hart, Patrick J.; Paxton, Eben H.

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Year Published: 2019

Relationships between soil macroinvertebrates and nonnative feral pigs (Sus scrofa) in Hawaiian tropical montane wet forests

Nonnative feral pigs (Sus scrofa) are recognized throughout the New World as a highly significant introduced species in terms of ecosystem alteration. Similarly, nonnative soil macroinvertebrates (e.g. earthworms, ground beetles) invade and alter the structure and function of native habitats globally. However, the relationship between feral pigs...

Wehr, Nathaniel H. ; Litton, Creighton M; Lincoln, Noa K; Hess, Steve C.

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Year Published: 2019

Environmental gradients influence differences in leaf functional traits between native and non-native plants

Determining the characteristics of non-native plants that can successfully establish and spread is central to pressing questions in invasion ecology. Evidence suggests that some non-native species establish and spread in new environments because they possess characteristics (functional traits) that allow them to either successfully compete with...

Henn, Jonathan J; Yelenik, Stephanie G.; Damschen, Ellen Ingman

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Year Published: 2019

Screening and biosecurity for White-nose Fungus Pseudogymnoascus destructans (Ascomycota: Pseudeurotiaceae) in Hawai‘i

Introduced pathogens causing emerging infectious diseases (EIDs) are serious contemporary threats to animal, plant, and ecosystem health. The invasive fungus, Pseudogymnoascus destructans, has established populations of European origin in North America, resulting in mass mortality of several hibernating bat species. Extensive monitoring for...

Zhelyazkova, Violeta; Toshkova, Nia; Dool, Serena E; Bonaccorso, Frank; Pinzari, Corinna A.; Montoya-Aiona, Kristina; Puechmaille, Sebastien J

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Year Published: 2019

Hawaiian hoary bat (Lasiurus cinereus semotus) activity, diet and prey availability at the Waihou Mitigation Area, Maui

Habitat use, diet, prey availability, and foraging ecology of the endangered Hawaiian hoary bat (Lasiurus cinereus semotus, Vespertilionidae), was examined in the east Maui region inclusive of the Waihou Mitigation Area, Pu‘u Makua Restoration Area and the wind energy facility operated by Auwahi Wind Energy, LLC. The study was conducted to inform...

Pinzari, Corinna A.; Peck, Robert W; Zinn, Terry; Gross, Danielle; Montoya-Aiona, Kristina; Brinck, Kevin W.; Gorresen, Paulo Marcos; Bonaccorso, Frank J