Pacific Island Ecosystems Research Center

Publications

Filter Total Items: 454
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Year Published: 2017

Methods for measuring bird-mediated seed rain: Insights from a Hawaiian mesic forest

Amount and diversity of bird-dispersed seed rain play important roles in determining forest composition, yet neither is easy to quantify. The complex ecological processes that influence seed movement make the best approach highly context specific. Although recent advances in seed rain theory emphasize quantifying source-specific seed shadows, many...

Rose, Eli; Stewart, Meredith; Brinkman, Andrew; Paxton, Eben H.; Yelenik, Stephanie G.
Rose, E., M. Stewart, A. Brinkman, E. Paxton, and S. Yelenik. 2017. Methods for measuring bird-mediated seed rain: insights from a Hawaiian mesic forest. Pacific Science 71:287–302. Available: http://www.bioone.org/doi/full/10.2984/71.3.4

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Year Published: 2017

Movements of four native Hawaiian birds across a naturally fragmented landscape

Animals often increase their fitness by moving across space in response to temporal variation in habitat quality and resource availability, and as a result of intra and inter-specific interactions. The long-term persistence of populations and even whole species depends on the collective patterns of individual movements, yet animal movements have...

Knowlton, Jessie L.; Flaspohler, David J.; Paxton, Eben H.; Fukami, Tadashi; Giardina, Christian P.; Gruner, Daniel S.; Wilson Rankin, Erin E.
Knowlton, J. L., D. J. Flaspohler, E. H. Paxton, T. Fukami, C. P. Giardina, D. S. Gruner, and E. E. W. Rankin. 2017. Movements of four native Hawaiian birds across a naturally fragmented landscape. Journal of Avian Biology 48:921–931.

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Year Published: 2017

Efforts to eradicate yellow crazy ants on Johnston Atoll: Results from crazy ant strike teams X, XI and XII (June 2015–December 2016)

Efforts to eradicate invasive yellow crazy ants (Anoplolepis gracilipes; YCA) on Johnston Atoll have been continuous since their discovery in 2010. Through 2014, a variety of commercial and novel formicidal baits were tested against the ant, but none proved capable of eradication. More recently, polyacrylamide crystals (“hydrogel”) saturated with...

Peck, Robert W; Banko, Paul C.; Donmoyer, Kevin; Scheiner, Katrina; Karimi, Rebekah; Kropidlowski, Stefan
Peck, R. W., P. C. Banko, K. Donmoyer, K. Scheiner, R. Karmi, and S. Kropidlowski. 2017. Efforts to eradicate yellow crazy ants on Johnston Atoll: results from Crazy Ant Strike Teams X, XI and XII (June 2015–December 2016). Hawai`i Cooperative Studies Unit Technical Report HCSU-TR081, University of Hawai'i at Hilo, Hilo. Available: https://dspace.lib.hawaii.edu/handle/10790/3205.

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Year Published: 2017

Linking occupancy surveys with habitat characteristics to estimate abundance and distribution in an endangered cryptic bird

Accurate estimates of the distribution and abundance of endangered species are crucial to determine their status and plan recovery options, but such estimates are often difficult to obtain for species with low detection probabilities or that occur in inaccessible habitats. The Puaiohi (Myadestes palmeri) is a cryptic species endemic to Kauaʻi,...

Crampton, Lisa H.; Brinck, Kevin W.; Pias, Kyle E.; Heindl, Barbara A. P.; Savre, Thomas; Diegmann, Julia S.; Paxton, Eben H.
Crampton, L. H., K. W. Brinck, K. E. Pias, B. A. P. Heindl, T. Savre, J. S. Diegmann, and E. H. Paxton. 2017. Linking occupancy surveys with habitat characteristics to estimate abundance and distribution in an endangered cryptic bird. Biodiversity and Conservation 26:1525–1539. Available: https://link.springer.com/article/10.1007/s10531-017-1313-0

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Year Published: 2017

Beyond exposure, sensitivity and adaptive capacity: A response based ecological framework to assess species climate change vulnerability

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...

Fortini, Lucas B.; Schubert, Olivia
Fortini, L., and O. Schubert. 2017. Beyond exposure, sensitivity and adaptive capacity: a response based ecological framework to assess species climate change vulnerability. Climate Change Responses 4:1–7. Available: https://climatechangeresponses.biomedcentral.com/articles/10.1186/s40665-017-0030-y

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Year Published: 2017

Baseline and projected future carbon storage and carbon fluxes in ecosystems of Hawai‘i

This assessment was conducted to fulfill the requirements of section 712 of the Energy Independence and Security Act of 2007 and to improve understanding of factors influencing carbon balance in ecosystems of Hawai‘i. Ecosystem carbon storage, carbon fluxes, and carbon balance were examined for major terrestrial ecosystems on the seven main...

Selmants, Paul C.; Giardina, Christian P.; Jacobi, James D.; Zhu, Zhiliang
Selmants, P.C., Giardina, C.P., Jacobi, J.D., and Zhu, Zhiliang, eds., 2017, Baseline and projected future carbon storage and carbon fluxes in ecosystems of Hawai‘i: U.S. Geological Survey Professional Paper 1834, 134 p., https://doi.org/10.3133/pp1834.

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Year Published: 2017

A rapid diagnostic test and mobile "lab in a suitcase" platform for detecting Ceratocystis spp. responsible for Rapid ‘Ōhi‘a Death

We describe a field compatible molecular diagnostic test for two new species of Ceratocystis that infect `ōhi`a (Metrosideros polymorpha) and cause the disease commonly known as Rapid `Ōhi`a Death. The diagnostic is based on amplification of a DNA locus within the internal transcribed spacer region that separates fungal 5.8S ribosomal genes. The...

Atkinson, Carter T.; Watcher-Weatherwax, William; Roy, Kylle; Heller, Wade P; Keith, Lisa
Atkinson, C.T., Watcher-Weatherwax, W., Roy, K., Heller, W.P. & Keith, L.M. (2017) A rapid diagnostic test and mobile"lab in a suitcase" platform for detecting Ceratocystis spp. responsible for Rapid ‘Ōhi‘a Death. Hawai`i Cooperative Studies Unit Technical Report HCSU-TR082, University of Hawai'i at Hilo, Hilo. Available: https://dspace.lib.hawaii.edu/handle/10790/3025

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Year Published: 2017

Facilitating adaptation in montane plants to changing precipitation along an elevation gradient

Montane plant communities throughout the world have responded to changes in precipitation and temperature regimes by shifting ranges upward in elevation. Continued warmer, drier climate conditions have been documented and are projected to increase in high-elevation areas in Hawai‘i, consistent with climate change effects reported in other...

Hess, Steve C.; Leopold, Christina
Leopold, C. R., and S. C. Hess. 2017. Facilitating adaptation in montane plants to changing precipitation along an elevation gradient. Hawai`i Cooperative Studies Unit Technical Report HCSU-TR080, University of Hawai'i at Hilo, Hilo. Available: https://dspace.lib.hawaii.edu/handle/10790/2977

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Year Published: 2017

Pacific Island landbird monitoring report, Hawaiʻi Volcanoes National Park, 2015-2016: Tract groups 1 and 2

Hawaiʻi Volcanoes National Park (HAVO) was surveyed for landbirds and landbird habitat from February through April 2015 and February through April 2016. This information provides the second datum in the time-series of Pacific Island Network (PACN) monitoring for long-term trends in landbird distribution, density, and abundance. Initial PACN...

Judge, Seth; Camp, Richard J.; Sedgwick, Daniel; Squibb, Carine; Hart, Patrick J.
Judge, S.W., R.J. Camp, D.E. Sedgwick, C.L. Squibb, and P.J. Hart. 2017. Pacific Island landbird monitoring report, Hawaiʻi Volcanoes National Park, 2015-2016: Tract groups 1 and 2. Natural Resource Report. NPS/PACN/NRR—2017/1407. National Park Service. Fort Collins, Colorado. Available: https://irma.nps.gov/DataStore/Reference/Profile/2239426

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Year Published: 2017

Mitigating future avian malaria threats to Hawaiian forest birds from climate change

Avian malaria, transmitted by Culex quinquefasciatus mosquitoes in the Hawaiian Islands, has been a primary contributor to population range limitations, declines, and extinctions for many endemic Hawaiian honeycreepers. Avian malaria is strongly influenced by climate; therefore, predicted future changes are expected to expand transmission into...

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

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Year Published: 2017

Conversion of native terrestrial ecosystems in Hawai‘i to novel grazing systems: a review

The remote oceanic islands of Hawai‘i exemplify the transformative effects that non-native herbivorous mammals can bring to isolated terrestrial ecosystems. We reviewed published literature containing systematically collected, analyzed, and peer-reviewed original data specifically addressing direct effects of non-native hoofed mammals (ungulates)...

Leopold, Christina R.; Hess, Steven C.
Leopold, C. R., and S. C. Hess. 2017. Conversion of native terrestrial ecosystems in Hawai‘i to novel grazing systems: a review. Biological Invasions 19:161–177. DOI: 10.1007/s10530-016-1270-7

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Year Published: 2017

Linking dominant Hawaiian tree species to understory development in recovering pastures via impacts on soils and litter

Large areas of tropical forest have been cleared and planted with exotic grass species for use as cattle pasture. These often remain persistent grasslands after grazer removal, which is problematic for restoring native forest communities. It is often hoped that remnant and/or planted trees can jump-start forest succession; however, there is little...

Yelenik, Stephanie G.
Yelenik, S. G. 2017. Linking dominant Hawaiian tree species to understory development in recovering pastures via impacts on soils and litter. Restoration Ecology 25:42–52.