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In Hawai‘i and other oceanic islands with few native land mammals, black rats (Rattus rattus) are among the most damaging invasive vertebrate species to native forest bird populations and habitats, due to their arboreal behavior and generalist foraging habitats and habitat use. This is a selected data set used to assess the impacts of rodenticide treatment on black rat (Rattus rattus) abundance within Hawaii Volcanoes National Park (HAVO). The key objective was to identify rat abundance before and after rodenticide treatment, using paired non-treatment and treatment plots at high elevation (1700-1830m) and low elevation (1220-1340 m). This dataset includes the results of a mark recapture study that took place within...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: BACI,
Hawaii,
Hawaii County 2,
Hawaii Volcanoes National Park,
Hawaii Volcanoes National Park,
Bird banding at 2 locations adjacent to one another (one in koa restoration forest, and other in native intact forest) at Hakalau Forest National Wildlife Refuge before and after the start of an outbreak by koa moths (Scotorythra paludicola) during 2013. Each bird was measured with an electronic scale accurate to 1/10th g. Results indicate that insectivorous birds increased in mass, on average, while generalist diet species showed marginally significant increases, and two out of three nectarivorous and frugivorous birds did not have significant change.
Categories: Data;
Tags: Hakalau Forest National Wildlife Refuge,
Hawaii Island,
biota,
birds,
body mass,
Surveys for immature life stages of Papilio godeffroyi were conducted on 117 individually marked host trees (Micromelum minutum) in eight forest stands on Tutuila Island, American Samoa, at approximately monthly intervals during 2013-2014. The eight stands were mostly in or adjacent to the National Park of American Samoa (NPSA), but one site was sampled near the western tip of Tutuila, outside NPSA. Papilio life stages included eggs, eggshells, larvae, pupae, and exuviae, which were taken to the laboratory at American Samoa Community College for examination and processing. Specimens were reared (live specimens) or assessed (dead or inert specimens) to determine their reproductive outcome and rates of parasitism....
This data release includes metadata and tabular data that documents unique types of mandibles dissected from caterpillars collected from different plant species at Hakalau Forest National Wildlife Refuge during 2017-2018.
Categories: Data;
Tags: Hakalau Forest National Wildlife Refuge,
Hawaii Island,
biota,
caterpillars,
host plants,
In Hawai‘i and other oceanic islands with few native land mammals, black rats (Rattus rattus) are among the most damaging invasive vertebrate species to native forest bird populations and habitats, due to their arboreal behavior and generalist foraging habitats and habitat use. We evaluated the nesting response of Hawai‘i ‘Elepaio (Chasiempis sandwichensis; Monarchidae), a generalist insectivore, to the removal of black rats using rodenticide in a before-after-control-impact study in high and low, mesic montane habitat recovering from long-term damage from introduced ungulates and weeds. We monitored nesting and rat activity during 2015–2016 before applying diphacinone bait in 2017 to remove rats from two 700 x...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: BACI,
Ecology,
Hawaii,
Hawaii County 2,
Hawaii Volcanoes National Park,
Surveys for immature life stages of Papilio godeffroyi were conducted on 117 individually marked host trees (Micromelum minutum) in eight forest stands on Tutuila Island, American Samoa, at approximately monthly intervals during 2013-2014. The eight sites were mostly in or adjacent to the National Park of American Samoa (NPSA), but one stand was located near the western tip of Tutuila, outside NPSA. Specimens of immature Papilio (eggs, eggshells, larvae, pupae) and exuviae were collected during surveys and taken to the laboratory at American Samoa Community College for analysis, and in the case of living specimens, rearing. Sampling effort was measured in terms of number, area, and dry weight of host plant leaves...
Categories: Data;
Tags: American Samoa,
National Park of American Samoa,
Tutuila,
biota,
host plant,
The koa moth (Scotorythra paludicola) is a species of moth that has been reported to irrupt in great abundance on occasion over the past 100 years, sometimes defoliating its host plant, koa (Acacia koa), during the event. This data release includes metadata and tabular data that document temporal abundance patterns of the koa moth (adult stage; Scotorythra paludicola) during an outbreak that resulted in widespread defoliation of koa across much of Hakalau Forest National Wildlife Refuge during 2013-2014. The data set documents numbers of moths collected in malaise traps during the outbreak. Malaise traps were deployed at several sites during the outbreak to allow moth abundance to be tracked over time.
Categories: Data;
Tags: Hakalau Forest National Wildlife Refuge,
Hawaii Island,
biota,
insect outbreak,
moth abundance
The data provide approximate size of Hawaii elepaio territories from field observation in 1994, and in 2015-2017 at the same field site along the Mauna Loa Strip section of Hawaii Volcanoes National Park.
Categories: Data;
Tags: Hawaii,
Hawaii County,
Hawaii Volcanoes National Park,
Mauna Loa Strip,
avian ecology,
This data release includes metadata and tabular data that documents the common plant species found at Hakalau Forest National Wildlife Refuge and the caterpillar species known to be associated with those plants.
Categories: Data;
Tags: Hakalau Forest National Wildlife Refuge,
Hawaii Island,
biota,
caterpillars,
host plants
This data release includes metadata and tabular data that document estimates of litterfall, koa moth (Scotorythra paludicola) caterpillar frass production, soil nutrients, and foliar nutrients during 2013-2014 at Hakalau Forest National Wildlife Refuge. During this time, there was a massive defoliation event of Acacia koa (koa) trees by the koa moth. We monitored these metrics in 4 sites that varied in forest structure and composition at Hakalau. We used litter traps to monitor koa litter fall over time and foliar %N to estimate N inputs from litter. We used caterpillar counts, koa canopy estimates, frass production rates, and frass %N to estimate N inputs from frass on the landscape. We used resin bags under koa...
This data release includes metadata and tabular data that document estimates of litterfall, koa moth (Scotorythra paludicola) caterpillar frass production, soil nutrients, and foliar nutrients during 2013-2014 at Hakalau Forest National Wildlife Refuge. During this time, there was a massive defoliation event of Acacia koa (koa) trees by the koa moth. We monitored these metrics in 4 sites that varied in forest structure and composition at Hakalau. We used litter traps to monitor koa litter fall over time and foliar %N to estimate N inputs from litter. We used caterpillar counts, koa canopy estimates, frass production rates, and frass %N to estimate N inputs from frass on the landscape. We used resin bags under koa...
Categories: Data;
Tags: Hakalau Forest National Wildlife Refuge,
Hawaii Island,
biota,
defoliation,
foliar nutrients,
Observers assessed the density and monitored the defoliation, refoliation, and survival of koa (Acacia koa) trees during the 2013-2014 outbreak of the koa moth (Scotorythra paludicola) at Hakalau Forest National Wildlife Refuge. Koa trees were tagged, classified by size class, and assessed on 55 plots (10-m radius) randomly located in two forest types (reforestation and natural forest) near Pedro and Pua Akala roads. Density and size class distribution was also assessed for ohia (Metrosideros polymorpha) trees on each plot. This dataset provides the location data for all plots.
Categories: Data;
Tags: Hakalau Forest National Wildlife Refuge,
Hawaii Island,
biota,
defoliation,
foliage regrowth,
The koa moth (Scotorythra paludicola) is a species of moth that has been reported to irrupt in abundance on occasion over the past 100 years, sometimes defoliating its host plant, koa (Acacia koa), during the event. This data release includes metadata and tabular data that document rate at which koa moth caterpillars were attacked and killed by parasitoid wasps (Hymenoptera) during an outbreak of the koa moth that resulted in widespread defoliation of koa across much of Hakalau Forest National Wildlife Refuge during 2013-2014. The data set documents the fate of caterpillars collected from koa foliage during the outbreak and reared in the lab, as well as the species identification of parasitoid wasps that emerged...
Categories: Data;
Tags: Hakalau Forest National Wildlife Refuge,
Hawaii Island,
biota,
caterpillar,
insect outbreak,
This data release includes metadata and tabular data that document the response of koa (Acacia koa) trees to defoliation by the koa moth (Scotorythra paludicola) during 2013-2014 at Hakalau Forest National Wildlife Refuge. Data were collected on 55 plots at 4 sites representing 2 habitat types with either high or low koa densities. Ohia (Metrosideros polymorpha) trees dominated habitats with low koa density. Data sets document (1) locations and habitat type of forest plots where koa trees were evaluated, (2) density and size of koa trees within plots, extent of koa tree defoliation, rate of koa tree foliage regrowth (refoliation), and koa tree mortality, and (3) counts and relative size of ohia trees for evaluating...
This data release includes metadata and tabular data that document estimates of litterfall, koa moth (Scotorythra paludicola) caterpillar frass production, soil nutrients, and foliar nutrients during 2013-2014 at Hakalau Forest National Wildlife Refuge. During this time, there was a massive defoliation event of Acacia koa (koa) trees by the koa moth. We monitored these metrics in 4 sites that varied in forest structure and composition at Hakalau. We used resin bags under koa canopy where frass was directly falling as compared to open grass sites where no frass was falling to monitor soil inorganic nitrogen and phosphorus over time. By comparing soil with frass inputs to frass inputs over time we could watch for...
Categories: Data;
Tags: Hakalau Forest National Wildlife Refuge,
Hawaii Island,
biota,
defoliation,
foliar nutrients,
This data release includes metadata and tabular data that documents the fate of caterpillars collected from different plant species at Hakalau Forest National Wildlife Refuge during 2017-2018. The dataset identifies the final stage obtained for each caterpillar collected. Final stages included: caterpillar, pupa, adult (moth or butterfly) and parasitized by Hymenoptera.
Categories: Data;
Tags: Hakalau Forest National Wildlife Refuge,
Hawaii Island,
biota,
caterpillars,
host plants
This data release includes metadata and tabular data documenting the reproductive demography of the Samoan swallowtail butterfly (Papilio godeffroyi), including rates of parasitism by two species of Ooencyrtus wasp. Data was collected at approximately monthly surveys of marked host trees (Micromelum minutum) at eight forest stands, mostly in or adjacent to the National Park of American Samoa (NPSA), Tutuila Island, during 2013-2014. One stand was located near the western tip of Tutuila, outside NPSA. Data sets document: (1) sampling effort for swallowtail specimens during monthly surveys of host trees; (2) final life cycle stage achieved by swallowtail specimens brought into the laboratory for rearing or postmortem...
The koa moth (Scotorythra paludicola) is a species of moth that has been reported to irrupt in great abundance on occasion over the past 100 years, sometimes defoliating its host plant, koa (Acacia koa), during the event. This data release includes metadata and tabular data that document temporal abundance patterns of parasitoid wasps (Hymenoptera) that are known to attack koa moth caterpillars during an outbreak of the koa moth that resulted in widespread defoliation of koa across much of Hakalau Forest National Wildlife Refuge during 2013-2014. The data set documents numbers of the parasitoid wasps Hyposoter exiguae (Ichneumonidae) and Meteorus laphygmae (Braconidae) collected in malaise traps during the outbreak....
Categories: Data;
Tags: Hakalau Forest National Wildlife Refuge,
Hawaii Island,
Parasitoid wasp,
biota,
insect outbreak,
Observers assessed the density and monitored the defoliation, refoliation, and survival of koa (Acacia koa) trees during the 2013-2014 outbreak of the koa moth (Scotorythra paludicola) at Hakalau Forest National Wildlife Refuge. Koa trees were tagged, classified by size class, and assessed on 55 plots (10-m radius) randomly located in two forest types (reforestation and natural forest) near Pedro and Pua Akala roads.This dataset contains data on the individual koa tree identify, plot location, forest type, size, and defoliation and refoliation dynamics.
Categories: Data;
Tags: Hakalau Forest National Wildlife Refuge,
Hawaii Island,
biota,
defoliation,
foliage regrowth,
Data were collected to identify changes in forest composition over a 25-year period of recovery from ungulate damage. Data were collected during two time periods, 1993-1994 and 2015-2019, and include tree height, tree DBH, distance between trees, and Hawaii elepaio nest site selection (nest tree species, nest tree height, and nest tree diameter).
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