Article
Biochemistry & Molecular Biology
Carlo Caruso, Mariana Rocha de Souza, Lupita Ruiz-Jones, Dennis Conetta, Joshua Hancock, Callum Hobbs, Caroline Hobbs, Valerie Kahkejian, Rebecca Kitchen, Christian Marin, Stephen Monismith, Joshua Madin, Ruth Gates, Crawford Drury
Summary: Spatial genetic structure (SGS) is crucial for a population's ability to adapt to environmental change. This study evaluated the genetic relatedness of coral colonies and found that asexual reproduction has a significant influence on SGS. Clonal colonies were more frequent and spatially closer to each other in environments with high wave energy. Environmental characteristics were partially predictive of genetic variation, but the explained variation was low.
Article
Multidisciplinary Sciences
E. Michael Henley, Mariko Quinn, Jessica Bouwmeester, Jonathan Daly, Claire Lager, Nikolas Zuchowicz, Daniel W. Bailey, Mary Hagedorn
Summary: Sessile invertebrates often engage in synchronized spawning events to increase likelihood of fertilization. This study compared the reproductive behavior of two Hawaiian corals, Montipora capitata and Montipora flabellata. The results showed distinct differences in their reproductive patterns, with Montipora capitata exhibiting coordinated gamete maturation and synchronized release, while Montipora flabellata had a less synchronous and aperiodic spawning. Climate change and local stressors may pose a threat to the reproductive strategy of Montipora flabellata.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
E. Michael Henley, Mariko Quinn, Jessica Bouwmeester, Jonathan Daly, Nikolas Zuchowicz, Claire Lager, Daniel W. Bailey, Mary Hagedorn
Summary: This study compared reproductive metrics of two Hawaiian Montipora corals after consecutive bleaching events, finding significant differences in sperm motility and mitochondrial membrane potential between M. capitata and Montipora spp. The disparity in these results may be attributed to the species' different UVR protective mechanisms.
SCIENTIFIC REPORTS
(2021)
Article
Evolutionary Biology
William C. Rosenthal, Peter B. McIntyre, Peter J. Lisi, Robert B. Prather, Kristine N. Moody, Michael J. Blum, James Derek Hogan, Sean D. Schoville
Summary: This study investigates the impact of natural selection on the evolution of non-native guppy populations in the Hawaiian Islands, suggesting that local adaptation plays a key role in invasion success. Evidence of low gene flow between populations indicates that removal could be an effective strategy for controlling invasive guppies across the Hawaiian archipelago.
EVOLUTIONARY APPLICATIONS
(2021)
Article
Environmental Sciences
Marc O. Lammers, Beth Goodwin, Anke Kugler, Eden J. Zang, Matt Harvey, Tetyana Margolina, Jonathan A. Martinez, Karlina Merkens, Leila T. Hatch
Summary: Using acoustic recorders and a Wave Glider autonomous surface vehicle, humpback whale song occurrence was monitored across the Hawaiian archipelago during the winter and early spring months. The results revealed that the entire archipelago is utilized by humpback whales and suggested a more complex distribution pattern than previously known, raising questions about the presence of multiple subpopulations.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Marine & Freshwater Biology
Casey Harris, Nina K. Bean, Andrew C. Baker, Ruth D. Gates, Crawford Drury
Summary: This study examined the effects of parental bleaching on symbiont community composition and offspring size in Montipora capitata. The results showed that parental bleaching history influenced the symbiont community composition in parents, gametes, and larvae, and larval size was also affected by maternal effects. These findings suggest that larval recruitment from bleached parents may decline as ocean warming becomes more frequent and severe, leading to generational shifts in symbiont community.
Article
Multidisciplinary Sciences
Morgan Winston, Thomas Oliver, Courtney Couch, Mary K. Donovan, Gregory P. Asner, Eric Conklin, Kimberly Fuller, Bryant W. Grady, Brittany Huntington, Kazuki Kageyama, Tye L. Kindinger, Kelly Kozar, Lindsey Kramer, Tatiana Martinez, Amanda McCutcheon, Sheila McKenna, Ku'ulei Rodgers, Cameron Ka'ilikea Shayler, Bernardo Vargas-Angel, Brian Zgliczynski
Summary: The Hawaiian Archipelago experienced a moderate bleaching event in 2019, which was less severe than previous major heatwave events in 2014 and 2015. The bleaching observed was site- and taxon-specific, and influenced by the susceptibility of remaining coral assemblages. Environmental and anthropogenic factors were correlated with bleaching in 2019, and reefs showed little evidence of acclimation to thermal stress. The detrimental effects of local stressors may be exacerbated under high thermal stress.
Article
Multidisciplinary Sciences
Amanda Williams, Jananan S. Pathmanathan, Timothy G. Stephens, Xiaoyang Su, Eric N. Chiles, Dennis Conetta, Hollie M. Putnam, Debashish Bhattacharya
Summary: This study reveals the complexity of coral thermal stress response and identifies key genes and metabolites involved in the animal's phenotypic response to thermal stress. The results suggest that redox regulation and metabolite transport play crucial roles in coral thermal stress response. Additionally, the study found that thermal stress has a negative impact on reproductive activity in corals.
Article
Geosciences, Multidisciplinary
Luis Alfredo Madrigal, Diana Nunez, Felipe de Jesus Escalona-Alcazar, Francisco Javier Nunez-Cornu
Summary: This study reveals the shallow and deep crustal structure of the Rivera-North American plate contact zone along two seismic transects, and also identifies the bathymetry of the northern region of Maria Madre Island.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Engineering, Civil
P. Spellman, A. B. C. Pritt, N. Salazar
Summary: Climate change exacerbates the risks to freshwater resources in small island nations, potentially increasing aridity and impacting long-term sustainability. Understanding changes in precipitation and evapotranspiration allows these nations to make informed planning decisions and adapt to future changes.
JOURNAL OF HYDROLOGY
(2021)
Article
Multidisciplinary Sciences
Jae Young Choi, Xiaoguang Dai, Ornob Alam, Julie Z. Peng, Priyesh Rughani, Scott Hickey, Eoghan Harrington, Sissel Juul, Julien F. Ayroles, Michael D. Purugganan, Elizabeth A. Stacy
Summary: The study conducted an evolutionary genomics analysis of genus Metrosideros, a landscape-dominant adaptive radiation of woody plants in Hawaii. It was found that Hawaiian Metrosideros originated from a single colonization event and showed evidence of extensive reticulation and admixture between taxa. Divergent selection was identified as driving the formation of differentiation outliers in early stages of speciation/divergence.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Marine & Freshwater Biology
Gyasi Alexander, Joshua R. Hancock, Ariana S. Huffmyer, Shayle B. Matsuda
Summary: Climate change-induced ocean warming has significant impacts on reef ecosystems, causing mass coral die-offs. Thermal anomalies negatively affect coral survival and recovery during reproduction and recruitment periods. Utilizing propagated corals and optimizing thermal conditions can enhance the effectiveness of reef restoration programs.
Article
Multidisciplinary Sciences
Cleopatra A. Moraiti, Eleni Verykouki, Nikos T. Papadopoulos
Summary: The study investigated the basal chill tolerance of the Mediterranean fruit fly across different latitudes and found that the climatic variability, particularly in terms of temperature and precipitation, has an impact on the fly's cold tolerance. The results revealed latitudinal trends in chill coma recovery time and indicated the combined effects of latitude and macroclimatic conditions. Overall, the study suggests that local climatic variability drives the evolutionary patterns of basal chill tolerance in the fruit fly.
SCIENTIFIC REPORTS
(2022)
Article
Geography, Physical
T. Fletcher, C. Eble, J. S. Sinninghe Damste, K. J. Brown, N. Rybczynski, J. Gosse, Z. Liu, A. Ballantyne
Summary: Research indicates that Arctic warming may lead to northward migration, changes in fire frequency, intensity, size, and season. During the Pliocene Epoch, there were boreal forests in the Canadian Arctic Archipelago, with frequent wildfires in warm and wet climates.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Marine & Freshwater Biology
Shayle B. Matsuda, Mariah L. Opalek, Raphael Ritson-Williams, Ruth D. Gates, Ross Cunning
Summary: This study found that different symbionts can affect the growth and competitive ability of corals in Hawaiian reefs, with some symbionts having higher heat tolerance but slower growth. These effects are likely modulated by environmental factors such as light and water temperature.
Article
Marine & Freshwater Biology
Sheila A. Kitchen, C. Cornelia Osborne, Nicole D. Fogarty, Iliana B. Baums
Summary: The study found that the morphology of Caribbean Acropora corals is not necessarily linked to their maternal species and cannot be predicted by mitochondrial haplogroups. Expert classification showed lower accuracy in identifying hybrids and A. palmata.
Article
Ecology
Lydia J. Baker, Hannah G. Reich, Sheila A. Kitchen, J. Grace Klinges, Hanna R. Koch, Iliana B. Baums, Erinn M. Muller, Rebecca Vega Thurber
Summary: This study investigated the infection and ecology of the symbiont Candidatus Aquarickettsia rohweri in threatened Acropora corals, finding that the infection magnitude is influenced by coral host and geographic location. Phylogenomic analysis showed clustering by geographic region, with positive selection observed in Florida populations due to greater nutrient stress. Aquarickettsia was not found to codiversify significantly with coral animal or algal symbiont, suggesting horizontal transmission as the likely route of infection.
Article
Biochemistry & Molecular Biology
Kathryn H. Stankiewicz, Kate L. Vasquez Kuntz, Iliana B. Baums
Summary: The traditional method Delta K for determining population structure may underestimate the true number of clusters and be sensitive to uneven sampling. Using a combination of different estimators is recommended for more accurate results, as relying on a single estimator may not be sufficient in determining the optimal number of clusters.
MOLECULAR ECOLOGY RESOURCES
(2022)
Article
Biodiversity Conservation
Robert van Woesik, Tom Shlesinger, Andrea G. Grottoli, Rob J. Toonen, Rebecca Vega Thurber, Mark E. Warner, Ann Marie Hulver, Leila Chapron, Rowan H. McLachlan, Rebecca Albright, Eric Crandall, Thomas M. DeCarlo, Mary K. Donovan, Jose Eirin-Lopez, Hugo B. Harrison, Scott F. Heron, Danwei Huang, Adriana Humanes, Thomas Krueger, Joshua S. Madin, Derek Manzello, Lisa C. McManus, Mikhail Matz, Erinn M. Muller, Mauricio Rodriguez-Lanetty, Maria Vega-Rodriguez, Christian R. Voolstra, Jesse Zaneveld
Summary: The global impacts of climate change are evident in every marine ecosystem, particularly on coral reefs where mass coral bleaching and mortality are common responses. Linking information across scientific disciplines and scales is a major challenge, but adopting an integrative approach can advance coral-reef science and guide conservation efforts. Establishing networks of protected reefs across national boundaries may be the best chance for corals to persist through climate change.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Multidisciplinary Sciences
Rowan H. McLachlan, James T. Price, Agusti Munoz-Garcia, Noah L. Weisleder, Stephen J. Levas, Christopher P. Jury, Robert J. Toonen, Andrea G. Grottoli
Summary: Climate change poses a major threat to coral reefs, but certain resilient corals and genotypes of sensitive species can persist and cope well under future ocean conditions, provided atmospheric carbon dioxide levels are controlled.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Christopher P. Jury, Brian M. Boeing, Henry Trapido-Rosenthal, Ruth D. Gates, Robert J. Toonen
Summary: This study reveals that increased production of nitric oxide by algal symbionts is a more important driver of coral bleaching under acute thermal stress, compared to symbiont dysfunction.
Article
Multidisciplinary Sciences
E. Michael Henley, Jessica Bouwmeester, Christopher P. Jury, Robert J. Toonen, Mariko Quinn, Claire V. A. Lager, Mary Hagedorn
Summary: The drastic decline in coral coverage has led to an interest in reef restoration. This study examines the growth of two species of Hawaiian Montipora and investigates whether preconditioning aids in coral restoration efforts. The results show that preconditioning has little effect on coral growth and survival.
Article
Multidisciplinary Sciences
Ingrid S. S. Knapp, Zac H. Forsman, Austin Greene, Erika C. Johnston, Claire E. Bardin, Norton Chan, Chelsea Wolke, David Gulko, Robert J. Toonen
Summary: This study investigates the factors affecting the growth and survival of outplanted corals using pyramid and block assays. The results suggest that medium-sized fragments have the best growth and survival rate, and the location of outplanted corals also significantly influences their survival and growth.
Article
Biodiversity Conservation
Eslam O. Osman, Samuel A. Vohsen, Fanny Girard, Rafaelina Cruz, Orli Glickman, Lena M. Bullock, Kaitlin E. Anderson, Alexis M. Weinnig, Erik E. Cordes, Charles R. Fisher, Iliana B. Baums
Summary: This study investigates the reliance of coral species living near deep-sea cold seeps on chemosynthetically-derived food and the impact of proximity to cold seeps. The researchers find that some coral species utilize chemosynthetically derived food and that the restructuring of the microbiome community may aid corals in utilizing seepage-derived carbon.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Multidisciplinary Sciences
Rebecca Vega Thurber, Emily R. Schmeltzer, Andrea G. Grottoli, Robert van Woesik, Robert J. Toonen, Mark Warner, Kerri L. Dobson, Rowan H. McLachlan, Katie Barott, Daniel J. Barshis, Justin Baumann, Leila Chapron, David J. Combosch, Adrienne M. S. Correa, Thomas M. DeCarlo, Mary Hagedorn, Laetitia Hedouin, Kenneth Hoadley, Thomas Felis, Christine Ferrier-Pages, Carly Kenkel, Ilsa B. Kuffner, Jennifer Matthews, Monica Medina, Christopher Meyer, Corinna Oster, James Price, Hollie M. Putnam, Yvonne Sawall
Summary: Coral reefs worldwide are declining due to bleaching and thermal stress. To maximize the research potential of coral samples, aseptic techniques and appropriate methods are needed in the collection, preservation, and archiving process.
Article
Biodiversity Conservation
Joshua M. Copus, Cameron A. J. Walsh, Mykle L. Hoban, Anne M. Lee, Richard L. Pyle, Randall K. Kosaki, Robert J. Toonen, Brian W. Bowen
Summary: This study examines the phylogeography of two mesophotic coral fish species and compares them to shallow-reef species. The results suggest that mesophotic coral ecosystems may be older and more stable than shallow coral ecosystems, contradicting previous beliefs. The genetic diversity and coalescence times of the mesophotic fish species are similar to their shallow-water counterparts.
Article
Fisheries
Richard R. Coleman, Derek W. Kraft, Mykle L. Hoban, Robert J. Toonen, Brian W. Bowen
Summary: This study used genomic approaches to investigate the gap between spawning and settlement location of the Hawaiian convict tang, revealing that most dispersal occurs between the eastern and southern shores. This finding is significant for the conservation of marine fishes.
JOURNAL OF FISH BIOLOGY
(2023)
Article
Ecology
Paolo Marra-Biggs, James Fatherree, Alison Green, Robert J. J. Toonen
Summary: Giant clams are ecologically important but their populations have declined due to past exploitation. The difficulty in identifying them accurately has affected population assessments. A recent study identified a new species of giant clams in the Samoan Archipelago, emphasizing the need for accurate assessments and management.
ECOLOGY AND EVOLUTION
(2022)
Article
Biology
Hanny E. Rivera, Anne L. Cohen, Janelle R. Thompson, Iliana B. Baums, Michael D. Fox, Kirstin S. Meyer-Kaiser
Summary: Ocean warming is causing coral mortality, but some heat-tolerant populations can replenish affected reefs. The Rock Islands in Palau harbor two thermally tolerant genetic lineages, which can provide tolerant larvae to neighboring areas, essential for coral survival.
COMMUNICATIONS BIOLOGY
(2022)
Article
Environmental Sciences
Paula M. de Coito, Arsalan Emami-Khoyi, Terry A. Hedderson, Robert J. Toonen, Peter R. Teske, George M. Branch
Summary: Seagrass habitats are declining globally, endangering seagrass-associated animals such as the Critically Endangered limpet Siphonaria compressa. This rare mollusk is found in only two separate lagoons in South Africa and relies on a specific seagrass species for survival. Genetic and morphological analysis revealed that the two populations are distinct subspecies and therefore translocation between them is not recommended as it may worsen the risk of extinction. Conservation measures for each population, such as seagrass bed protection and restoration, should be implemented instead.
AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
(2023)