Can Hawaii Meet Its Renewable Fuel Target? Case Study of Banagrass-Based Cellulosic Ethanol by Chinh Tran, John Yanagida

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The Estimation of Lava Flow Temperatures Using Landsat Night-Time Images: Case Studies from Eruptions of Mt. Etna and Stromboli (Sicily, Italy), Kīlauea (Hawaii Island), and Eyjafjallajökull and Holuhraun (Iceland) by Ádám Nádudvari, Anna Abramowicz, Rosanna Maniscalco, Marco Viccaro

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<i>Phytophthora palmivora</i> Causing Disease on <i>Theobroma cacao</i> in Hawaii by Alina Sandra Puig, Wilber Quintanilla, Tracie Matsumoto, Lisa Keith, Osman Ariel Gutierrez, Jean-Philippe Marelli

“…To determine the species of <i>Phytophthora</i> affecting <i>Theobroma cacao</i>, a sampling trip was conducted on Hawaii Island and Oahu. Ten isolates of <i>Phytophthora palmivora</i> were obtained from diseased cacao on Hawaii Island, but none from Oahu, despite the presence of symptomatic pods. …”
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Genomic evidence indicates small island-resident populations and sex-biased behaviors of Hawaiian reef Manta Rays by Jonathan L. Whitney, Richard R. Coleman, Mark H. Deakos

“…Estimates of contemporary effective population size (N e ) are 104 (95% CI: 99–110) in Hawaiʻi Island and 129 (95% CI: 122–136) in Maui Nui. …”
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Effects of long-term rainfall decline on the structure and functioning of Hawaiian forests by Jomar M Barbosa, Gregory P Asner

“…Using gridded annual precipitation maps from 1920 to 2012, and temporal data from airborne light detection and ranging (LiDAR) and MODIS Enhanced Vegetation Index (EVI), we present evidence for a large-scale decline in forest canopy volume (area vs. height) and greenness (a metric of photosynthetic function) driven by a long-term drying trend on Hawaii island. Decreases in canopy greenness were observed in step with shorter-term (10 y) precipitation declines, but decreases in greenness were two-fold greater where longer-term (∼100 y) precipitation declines had occurred. …”
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Integration of DInSAR Time Series and GNSS Data for Continuous Volcanic Deformation Monitoring and Eruption Early Warning Applications by Brianna Corsa, Magali Barba-Sevilla, Kristy Tiampo, Charles Meertens

“…Here, we prepare a differential interferometric SAR (DInSAR) time series and integrate it with GNSS data to create a fused dataset with enhanced accuracy of 3D ground motions over Hawaii island from November 2015 to April 2021. We present a comparison of the raw datasets against the fused time series and give a detailed account of observed ground deformation leading to the May 2018 and December 2020 volcanic eruptions. …”
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Landscape configuration alters movement behavior and space‐use of a Hawaiian forest bird community by Kristina L. Paxton, Jennifer R. Smetzer, Patrick J. Hart, Marti J. Anderson, Eben H. Paxton

“…We used a landscape‐level automated radio tracking system to measure location data of 127 individuals tracked on Hawaiʻi Island in a naturally fragmented landscape created by volcanic activity in the mid‐ to late‐1800s and a nearby continuous landscape. …”
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Automated Global Shallow Water Bathymetry Mapping Using Google Earth Engine by Jiwei Li, David E. Knapp, Mitchell Lyons, Chris Roelfsema, Stuart Phinn, Steven R. Schill, Gregory P. Asner

“…We then evaluated the performance of the models at six globally diverse sites (Heron Island, Australia; West Coast of Hawaiʻi Island, Hawaiʻi; Saona Island, Dominican Republic; Punta Cana, Dominican Republic; St. …”
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Monitoring Coffee Leaf Rust (<i>Hemileia vastatrix</i>) on Commercial Coffee Farms in Hawaii: Early Insights from the First Year of Disease Incursion by Luis F. Aristizábal, Melissa A. Johnson

“…We initiated a CLR monitoring program in Kona, West Hawaii Island, to track the spread of this new invasive disease across a broad elevational gradient. …”
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Indigenous stewardship through novel approaches to collaborative management in Hawaiʻi by Kawika B. Winter, Mehana Blaich. Vaughan, Natalie Kurashima, Lei Wann, Emily Cadiz, A. Hiʻilei Kawelo, Māhealani Cypher, Leialoha Kaluhiwa, Hannah Kihalani. Springer

“…We focus on exploring how three Hawaiʻi communities (Hāʻena, Kauaʻi; Heʻeia, Oʻahu; and Kaʻūpūlehu, Hawaiʻi Island) have navigated bureaucracy to get formal recognition of their ICCAs in ways that have garnered governmental support for community-based revival of Indigenous stewardship practices. …”
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One becomes two: second species of the Euwallacea fornicatus (Coleoptera: Curculionidae: Scolytinae) species complex is established on two Hawaiian Islands by Paul F. Rugman-Jones, Michelle Au, Valeh Ebrahimi, Akif Eskalen, Conrad P.D.T. Gillett, David Honsberger, Deena Husein, Mark G. Wright, Fazila Yousuf, Richard Stouthamer

“…However, following the 2016 deposition of a DNA sequence in the public repository GenBank, it became evident that another species, E. fornicatus (polyphagous shot hole borer; PSHB), had been detected in macadamia orchards on Hawaiʻi Island (the Big Island). We surveyed the two most-populous islands of Hawaiʻi, Big Island and Oʻahu, and herein confirm that populations of TSHB and PSHB are established on both. …”
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Climate-driven differences in flow regimes alter tropical freshwater ecosystems with consequences for an endemic shrimp by Ralph W. Tingley, Dana M. Infante, Richard A. MacKenzie, Ayron M. Strauch, Patra B. Foulk, Brian Roth

“…Across an established precipitation and hydrologic gradient on the east coast of Hawaii Island, we sampled stream habitat and populations of the endemic migratory mountain shrimp Atyoida bisulcata over three years and examined how habitat as well as population metrics and individual condition respond to differences in stream flow. …”
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Environmental Surveillance and Characterization of Antibiotic Resistant <i>Staphylococcus aureus</i> at Coastal Beaches and Rivers on the Island of Hawaiʻi by Tyler J. Gerken, Marilyn C. Roberts, Philip Dykema, Geoff Melly, Darren Lucas, Vanessa De Los Santos, Joenice Gonzalez, Patrick Butaye, Tracy N. Wiegner

“…Samples were collected from three regions on Hawaiʻi Island from July to December 2020 during the COVID-19 pandemic and were characterized using whole-genome sequencing (WGS). …”
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The occurrence of humpback whales across the Hawaiian archipelago revealed by fixed and mobile acoustic monitoring by Marc O. Lammers, Beth Goodwin, Anke Kügler, Eden J. Zang, Matt Harvey, Tetyana Margolina, Jonathan A. Martinez, Karlina Merkens, Leila T. Hatch

“…Among the locations monitored with moored recorders, the highest and most sustained seasonal chorusing levels were measured off Maui followed by French Frigate Shoals (Kānemilohai), Hawaii Island, Middle Bank, Oahu, Kauai, Gardner Pinnacles (Pūhāhonu) and Pearl and Hermes Reef (Holoikauaua), respectively. …”
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Allopolyploid origin and diversification of the Hawaiian endemic mints by Tomlin, Crystal M., Rajaraman, Sitaram, Sebesta, Jeanne Theresa, Scheen, Anne-Cathrine, Bendiksby, Mika, Low, Yee Wen, Salojärvi, Jarkko, Michael, Todd P., Albert, Victor A., Lindqvist, Charlotte

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Nursery Cultural Techniques Facilitate Restoration of <i>Acacia koa</i> Competing with Invasive Grass in a Dry Tropical Forest by Douglass F. Jacobs, Anthony S. Davis, R. Kasten Dumroese, Owen T. Burney

“…We studied the use of nursery cultural techniques to facilitate the establishment of koa (<i>Acacia koa</i>) seedlings outplanted amidst well-established kikuyu grass on a volcanic cinder cone on the dry, western side of Hawaii Island. Seedlings were grown four months in three container sizes (49, 164, 656 cm³) and with four rates (0, 4.8, 7.2, and 9.6 kg m⁻³) of 15–9–12 (NPK) controlled-release fertilizer incorporated into media prior to sowing. …”
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A confirmation of vertical acoustic resonance and field-aligned current generation just after the 2022 Hunga Tonga Hunga Ha’apai volcanic eruption by Toshihiko Iyemori, Michi Nishioka, Yuichi Otsuka, Atsuki Shinbori

“…These time differences are much smaller than the travel time of the seismic waves from the volcano to Hawaii islands. Therefore, it is suggested that the electric field transmitted along geomagnetic field caused the TEC variation observed over Hawaii Islands. …”
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Complete mitochondrial DNA sequence of the small hive beetle Aethina tumida (Insecta: Coleoptera) from Hawaii by Jun-ichi Takahashi, Hisashi Okuyama, Stephen J. Martin

“…We analyzed the complete mitochondrial genome of the small hive beetle Aethina tumida, a major honeybee pest that was accidentally transported to the Hawaii Islands, USA. The mitochondrial genome of A. tumida was identified as a 15,198 bp circular molecule containing 13 protein-coding genes, 22 tRNA genes, and two rRNA genes, along with one A + T-rich control region. …”
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Assembling genetic structure of Gardenia remyi, a critically endangered tree endemic to the Hawaiian Islands by Kristina Egholm Hansen, Mike Opgenorth, Tim Flynn, Barbara Kennedy, Nina Rønsted, Jill K. Olofsson, Christopher J. Barnes

“…Phylogenetic and population structure analysis revealed a monophyletic ingroup and a clear division between G. remyi samples of the northern island of Kauaʻi and those from the more southeastern younger islands of Molokaʻi, Maui and Hawaiʻi islands. The Kauaʻi samples were further split into a subpopulation from Southern Kauaʻi and the subpopulations from Northern Kauaʻi. …”
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The most oligotrophic subtropical zones of the global ocean: similarities and differences in terms of chlorophyll and yellow substance by A. Morel, H. Claustre, B. Gentili

“…Except in the North Pacific gyre (near Mariana and south of Hawaii islands), a conspicuous seasonality appears to be the rule in the other 4 gyres and affects both [Chl] and CDOM; both quantities vary in a ratio of about 2 (maximum-to-minimum). …”
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