Pacific Island Ecosystems Research Center

Publications

Filter Total Items: 511
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Year Published: 2021

Hawai‘i forest review: Synthesizing the ecology, evolution, and conservation of a model system

As the most remote archipelago in the world, the Hawaiian Islands are home to a highly endemic and disharmonic biota that has fascinated biologists for centuries. Forests are the dominant terrestrial biome in Hawai‘i, spanning complex, heterogeneous climates across substrates that vary tremendously in age, soil structure, and nutrient availability...

Barton, Kasey; Westerband, Andrea; Ostertag, Rebecca; Stacy, Elizabeth; Winter, Kawika; Drake, Don; Fortini, Lucas; Litton, Creighton M; Cordell, Susan; Krushelnycky, Paul; Kawelo, Kapua; Feliciano, Kealoha; Bennett, Gordon; Knight, Tiffany

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Year Published: 2021

Distilling professional opinion to gauge vulnerability of Guam avifauna to Brown Treesnake predation

The avifauna of Guam was devastated by the introduction of the Brown Treesnake, and the restoration of native birds would need to address the problem with eradication or suppression of BTS. With eradication of the snake unlikely in the near term, and suppression capabilities limited to specific finite areas, key information for reintroductions is...

McElderry, Robert; Paxton, Eben H.; Nguyen, Andre; Siers, Shane R.

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Year Published: 2021

Perceived barriers to the use of assisted colonization for climate sensitive species in the Hawaiian Islands

Conservation actions to safeguard climate change vulnerable species may not be utilized due to a variety of perceived barriers. Assisted colonization, the intentional movement and release of an organism outside its historical range, is one tool available for species predicted to lose habitat under future climate change scenarios, particularly for...

Rivera, Shannon; Fortini, Lucas; Plentovich, Sheldon M.; Price, Melissa

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Year Published: 2021

Population estimates and trends of three Maui Island-endemic Hawaiian Honeycreepers

Population monitoring is critical for informing the management and conservation of rare Hawaiian forest birds. In 2017, we used point-transect distance sampling methods to estimate population densities of birds on Haleakalā Volcano on east Maui island. We estimated the populations and ranges of three island-endemic Hawaiian honeycreepers,...

Judge, Seth; Warren, Christopher C; Camp, Richard J.; Berthold, Laura K; Mounce, Hanna L; Hart, Patrick J.; Monello, Ryan J.

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Year Published: 2021

Bridging the research-implementation gap in avian conservation with translational ecology

The recognized gap between research and implementation in avian conservation can be overcome with translational ecology, an intentional approach in which science producers and users from multiple disciplines work collaboratively to co-develop and deliver ecological research that addresses management and conservation issues. Avian conservation...

Saunders, Sarah P.; Wu, Joanna X.; Gow, Elizabeth A.; Adams, Evan A.; Bateman, Brooke L.; Bayard, Trina; Beilke, Stephanie; Dayer, Ashley A.; Fournier, Auriel M.V.; Fox, Kara; Hamilton, Christoper; Heglund, Patricia J.; Lerman, Susannah B.; Michel, Nicole L.; Paxton, Eben H.; Şekercioğlu, Çağan H.; Smith, Melanie A.; Thogmartin, Wayne E.; Woodrey, Mark S; van Riper, Charles

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Year Published: 2021

Linking climate niches across seasons to assess population vulnerability in a migratory bird

Global loss of biodiversity has placed new urgency on the need to understand factors regulating species response to rapid environmental change. While specialists are often less resilient to rapid environmental change than generalists, species-level analyses may obscure the extent of specialization when locally adapted populations vary in climate...

Ruegg, Kristen; Anderson, Eric; Somveille, Marius; Bay, Rachael A.; Whitfield, Mary J.; Paxton, Eben H.; Smith, Thomas B.

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Year Published: 2021

Transcriptome assembly and differential gene expression of the invasive avian malaria parasite Plasmodium relictum in Hawaiʻi

The malaria parasite Plasmodium relictum (lineage GRW4) was introduced less than a century ago to the native avifauna of Hawaiʻi, where it has since caused major declines of endemic bird populations. One of the native bird species that is frequently infected with GRW4 is the Hawaiʻi ʻamakihi (Chlorodrepanis virens). To achieve a better...

Videvall, Elin; Paxton, Kristina L.; Campana, Michael G.; Cassin-Sackett, Loren; Atkinson, Carter T.; Fleischer, Robert C.

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Year Published: 2021

Landscape level effects of invasive plants and animals on water infiltration through Hawaiian tropical forests

Watershed degradation due to invasion threatens downstream water flows and associated ecosystem services. While this topic has been studied across landscapes that have undergone invasive-driven state changes (e.g., native forest to invaded grassland), it is less well understood in ecosystems experiencing within-system invasion (e.g. native forest...

Fortini, Lucas; Leopold, Christina; Perkins, Kimberlie; Chadwick, Oliver A.; Yelenik, Stephanie G.; Jacobi, James D.; Bishaw, Kaiena; Gregg, Makani

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Year Published: 2021

Efficacy of detection canines for avian botulism surveillance and mitigation

Hawai'i's endangered waterbirds have experienced epizootics caused by ingestion of prey that accumulated a botulinum neurotoxin produced by the anaerobic bacterium Clostridium botulinum (avian botulism; Type C). Waterbird carcasses, necrophagous flies, and their larvae initiate and spread avian botulism, a food-borne paralytic disease...

Reynolds, Michelle H; Johnson, Kyoko N; Schvaneveldt, Eleni; Dewy, Dan L; Uyehara, Kim J; Hess, Steven C.

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Year Published: 2021

Population density, distribution, and trends of landbirds in the National Park of American Samoa, Ta‘ū and Tutuila Units (2011–2018)

The National Park of American Samoa (NPSA) was surveyed for landbirds from June through July, 2018. Surveys were conducted using point-transect distance sampling methods to estimate bird densities. This information provides the second datum in the time-series of landbird monitoring for long-term trends in landbird distribution, density, and...

Judge, Seth; Camp, Richard J.; Vaivai, Visa; Hart, Patrick J.

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Year Published: 2021

Automated telemetry reveals post-reintroduction exploratory behavior and movement patterns of an endangered corvid, ʻAlalā (Corvus hawaiiensis) in Hawaiʻi, USA

Continuous movement monitoring is a powerful tool for evaluating reintroduction techniques and assessing how well reintroduced animals are adjusting to the wild. However, to date, continuous monitoring has only occurred for large-bodied species capable of carrying heavy tracking devices. In this study we used an automated VHF radio...

Smetzer, Jennifer R; Greggor, Alison L; Paxton, Kristina L.; Masuda, Bryce M; Paxton, Eben H.

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Year Published: 2021

Understanding metrics of stress in the context of invasion history: The case of the brown treesnake (Boiga irregularis)

Invasive species can exert rapid depletion of resources after introduction and, in turn, affect their own population density. Additionally, management actions can have direct and indirect effects on demography. Physiological variables can predict demographic change but are often restricted to snapshots-in-time and delayed confirmation of changes...

Claunch, N; Moore, I.; Waye, H; Schoenle, L; Oakey, S; Reed, Robert; Romagosa, Christina