19 results match your criteria: "University of Hawai'i Hilo[Affiliation]"
University students' sleep during the COVID-19 pandemic in the State of Hawai'i.
J Am Coll Health
December 2024
Department of Psychology, Chaminade University of Honolulu, Honolulu, Hawai'i, USA.
This study assessed undergraduates' sleep in Hawai'i during the COVID-19 pandemic and whether demographic characteristics, health locus of control, substance use and campus features related to sleep outcomes. Implications are considered for programs to support students' sleep and health during pandemic conditions. About 1,288 undergraduate students from six universities in Hawai'i.
View Article and Find Full Text PDFGene expression reveals immune response strategies of naïve Hawaiian honeycreepers experimentally infected with introduced avian malaria.
J Hered
June 2023
Center for Conservation Genomics, National Zoological Park and Conservation Biology Institute, Smithsonian Institution, Washington, DC 20008, USA.
The unprecedented rise in the number of new and emerging infectious diseases in the last quarter century poses direct threats to human and wildlife health. The introduction to the Hawaiian archipelago of Plasmodium relictum and the mosquito vector that transmits the parasite has led to dramatic losses in endemic Hawaiian forest bird species. Understanding how mechanisms of disease immunity to avian malaria may evolve is critical as climate change facilitates increased disease transmission to high elevation habitats where malaria transmission has historically been low and the majority of the remaining extant Hawaiian forest bird species now reside.
View Article and Find Full Text PDFTriadic Dimensionalities: Knowledge, Movement, and Cultural Discourse-in the Wake of the Covid-19 Pandemic.
Int J Semiot Law
April 2022
ULR 4487 - CRDP - Centre de Recherche Droits et Perspectives du Droit, University of Lille, 59000 Lille, France.
Since early 2020, the Covid-19 (CoronaVIrus Disease-19) pandemic has affected our world in multiple ways. What we know and how we know it has shifted on a global scale. How we move throughout the world has been restricted and locked down.
View Article and Find Full Text PDFA major advancement in the use of radio telemetry has been the development of automated radio tracking systems (ARTS), which allow animal movements to be tracked continuously. A new ARTS approach is the use of a network of simple radio receivers (nodes) that collect radio signal strength (RSS) values from animal-borne radio transmitters. However, the use of RSS-based localization methods in wildlife tracking research is new, and analytical approaches critical for determining high-quality location data have lagged behind technological developments.
View Article and Find Full Text PDFStranger Danger: Social Distancing, the Bubble, and the War on Space in Times of Covid-19.
Int J Semiot Law
November 2021
Adam Mickiewicz University, Poznań, Poland.
As authors, we recognize the scientific foundations for implementing social distancing in preventing the spread of Covid-19. Yet, we also recognize fundamental changes to the socio-legal discourse of everyday life that we research. We see legalized space itself as the foundation for social relationships significantly impacted through the 'new normal' of social/physical distancing guidelines.
View Article and Find Full Text PDF: Biopolitical Management of Viral Spread in the Age of Covid-19.
Int J Semiot Law
February 2021
University of Hawai'I Hilo, Hilo, Hawai'i USA.
The current pandemic period has triggered a series of changes in society, at both individual and collective behavioral levels. These changes were perceived as either positive or negative by the impacted bodies, leading to both social change and positive interactions in a tense context. In this paper, the authors will deal with , subjugation infiltrating all levels of society, and the approach adopted by several countries in trying to find countermeasures to combat the virus' proliferation.
View Article and Find Full Text PDFStudents Who Analyze Their Own Data in a Course-Based Undergraduate Research Experience (CURE) Show Gains in Scientific Identity and Emotional Ownership of Research.
J Microbiol Biol Educ
November 2020
Research for Inclusive STEM Education Center, Biology Education Research Lab, School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501.
While it has been established that course-based undergraduate research experiences (CUREs) lead to student benefits, it is less clear what aspects of CUREs lead to such gains. In this study, we aimed to understand the effect of students analyzing their own data, compared with students analyzing data that had been collected by professional scientists. We compared the experiences of students in a CURE investigating whether the extinction risk status of terrestrial mammals and birds is associated with their ecological traits.
View Article and Find Full Text PDFStable isotope analysis of multiple tissues from Hawaiian honeycreepers indicates elevational movement.
PLoS One
September 2020
U.S. Geological Survey Pacific Island Ecosystems Research Center, Hawai'i National Park, HI, United States of America.
We have limited knowledge of the patterns, causes, and prevalence of elevational migration despite observations of seasonal movements of animals along elevational gradients in montane systems worldwide. While a third of extant Hawaiian landbird species are estimated to be elevational migrants this assumption is based primarily on early naturalist's observations with limited empirical evidence. In this study, we compared stable hydrogen isotopes (δ2H) of metabolically inert (feathers) and active (blood plasma, red blood cells) tissues collected from the same individual to determine if present day populations of Hawaiian honeycreepers undergo elevational movements to track areas of seasonally high flower bloom that constitute significant food resources.
View Article and Find Full Text PDFIsolation of Metrosideros ('Ohi'a) Taxa on O'ahu Increases with Elevation and Extreme Environments.
J Hered
February 2020
Department of Biology, Pittsburg State University, Pittsburg, KS.
Species radiations should be facilitated by short generation times and limited dispersal among discontinuous populations. Hawaii's hyper-diverse, landscape-dominant tree, Metrosideros, is unique among the islands' radiations for its massive populations that occur continuously over space and time within islands, its exceptional capacity for gene flow by both pollen and seed, and its extended life span (ca. >650 years).
View Article and Find Full Text PDFLoss of cultural song diversity and the convergence of songs in a declining Hawaiian forest bird community.
R Soc Open Sci
August 2019
Department of Biology, University of Hawai'i Hilo, Hilo, HI 96720, USA.
The effects of population decline on culturally transmitted behaviours in animals have rarely been described, but may have major implications to population viability. Learned vocal signals in birds are of critical importance to behaviours associated with reproduction, intrasexual interactions and group cohesion, and the complexity of vocal signals such as song can serve as an honest signal of an individual's quality as well as the viability of a population. In this study, we examined how rapid population declines recently experienced by Hawaiian honeycreepers on the island of Kaua'i (USA) may have influenced the diversity, complexity and similarity of learned honeycreeper songs.
View Article and Find Full Text PDFWhereas disruptive selection imposed by heterogeneous environments can lead to the evolution of extrinsic isolating barriers between diverging populations, the evolution of intrinsic postzygotic barriers through divergent selection is less certain. Long-lived species such as trees may be especially slow to evolve intrinsic isolating barriers. We examined postpollination reproductive isolating barriers below the species boundary, in an ephemeral hybrid zone between two successional varieties of the landscape-dominant Hawaiian tree, , on volcanically active Hawai'i Island.
View Article and Find Full Text PDFProspects for energy recovery during hydrothermal and biological processing of waste biomass.
Bioresour Technol
February 2017
Cornell Energy Institute, Cornell University, United States; Department of Chemical and Biomolecular Engineering, Cornell University, United States; Department of Civil and Environmental Engineering, Bucknell University, United States. Electronic address:
Thermochemical and biological processes represent promising technologies for converting wet biomasses, such as animal manure, organic waste, or algae, to energy. To convert biomass to energy and bio-chemicals in an economical manner, internal energy recovery should be maximized to reduce the use of external heat and power. In this study, two conversion pathways that couple hydrothermal liquefaction with anaerobic digestion or catalytic hydrothermal gasification were compared.
View Article and Find Full Text PDFGenetic analysis of an ephemeral intraspecific hybrid zone in the hypervariable tree, Metrosideros polymorpha, on Hawai'i Island.
Heredity (Edinb)
September 2016
Department of Biology, University of Hawai'i Hilo, Hilo, HI, USA.
Intraspecific hybrid zones involving long-lived woody species are rare and can provide insights into the genetic basis of early-diverging traits in speciation. Within the landscape-dominant Hawaiian tree, Metrosideros polymorpha, are morphologically distinct successional varieties, incana and glaberrima, that dominate new and old lava flows, respectively, below 1200 me on volcanically active Hawai'i Island, with var. glaberrima also extending to higher elevations and bogs.
View Article and Find Full Text PDFEvaluating nurse plants for restoring native woody species to degraded subtropical woodlands.
Ecol Evol
January 2015
Environmental Studies, University of California Santa Barbara, California.
Harsh habitats dominated by invasive species are difficult to restore. Invasive grasses in arid environments slow succession toward more desired composition, yet grass removal exacerbates high light and temperature, making the use of "nurse plants" an appealing strategy. In this study of degraded subtropical woodlands dominated by alien grasses in Hawai'i, we evaluated whether individuals of two native (Dodonaea viscosa, Leptocophylla tameiameia) and one non-native (Morella faya) woody species (1) act as natural nodes of recruitment for native woody species and (2) can be used to enhance survivorship of outplanted native woody species.
View Article and Find Full Text PDFIntraspecific divergence and evolution of a life-history trade-off along a successional gradient in Hawaii's Metrosideros polymorpha.
J Evol Biol
June 2014
Department of Tropical Conservation Biology & Environmental Science, University of Hawai'i Hilo, Hilo, HI, USA.
The importance of environmental gradients in the diversification of long-lived tree species is poorly understood. Two morphologically distinct varieties of the endemic Hawaiian tree, 'ōhi'a lehua (Metrosideros polymorpha), are the canopy dominants at alternate extremes of a successional gradient formed by the recurring disturbance of lava flows on east Hawai'i Island. The maintenance of these varieties despite hybridization may be due to disruptive selection at either end of the successional gradient.
View Article and Find Full Text PDFIncipient radiation within the dominant Hawaiian tree Metrosideros polymorpha.
Heredity (Edinb)
October 2014
Tropical Conservation Biology and Environmental Science Graduate Program, University of Hawai'i Hilo, Hilo, HI, USA.
Although trees comprise a primary component of terrestrial species richness, the drivers and temporal scale of divergence in trees remain poorly understood. We examined the landscape-dominant tree, Metrosideros polymorpha, for variation at nine microsatellite loci across 23 populations on young Hawai'i Island, sampling each of the island's five varieties throughout its full geographic range. For four varieties, principal coordinate analysis revealed strong clustering of populations by variety across the 10 430 km(2) island, indicating partitioning of the species into multiple evolutionarily significant units.
View Article and Find Full Text PDFDivergence within and among 3 varieties of the endemic tree, 'Ohi'a Lehua (Metrosideros polymorpha) on the eastern slope of Hawai'i Island.
J Hered
November 2013
Tropical Conservation Biology and Environmental Science Graduate Program, University of Hawai'i Hilo, 200W. Kawili Street, Hilo, HI 96720, USA.
Examination of neutral genetic structure within young, hypervariable tree species over heterogeneous landscapes can yield insight into the causes of divergence within trees. Three varieties of the Hawaiian-forest-dominant, Metrosideros polymorpha, occur across the main islands and partition 2 striking environmental gradients on young Hawai'i Island. In an examination of 6 nuclear microsatellite loci across 10 populations on east Hawai'i, we found differentiation among varieties (mean F ST = 0.
View Article and Find Full Text PDFA latent profile analysis of Asian American men's and women's adherence to cultural values.
Cultur Divers Ethnic Minor Psychol
July 2012
Department of Psychology, University of Hawai'i-Hilo.
The goal of this study was to identify diverse profiles of Asian American women's and men's adherence to values that are salient in Asian cultures (i.e., conformity to norms, family recognition through achievement, emotional self-control, collectivism, and humility).
View Article and Find Full Text PDF"The upper limits of vegetation on Mauna Loa, Hawaii": a 50th-anniversary reassessment.
Ecology
February 2011
Geography and Environmental Studies, University of Hawai'i-Hilo, Hawaii 96720, USA.
In January 1958, a survey of alpine flora was conducted along a recently constructed access road across the upper volcanic slopes of Mauna Loa, Hawaii (2525-3397 m). Only five native Hawaiian species were encountered on sparsely vegetated historic and prehistoric lava flows adjacent to the roadway. A resurvey of roadside flora in 2008 yielded a more than fourfold increase to 22 species, including nine native species not previously recorded.
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