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Filters Date Range Past year (3) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Robert W Peck Paul C Banko U.S. Geological Survey - ScienceBase Stephanie G Yelenik US Forest Service Rocky Mountain Research Station More... Categories Data (12) Tag Types Theme (15) Place (15) USGS Scientific Topic Keyword (3) Harvest Set (3) Tag Schemes None (15) Common geographic areas (15) ISO 19115 Topic Category (14) View Results as: JSON ATOM CSV

Koa moth (Scotorythra paludicola) abundance in response to koa moth outbreak, 2013-2014 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 Hakalau litter, frass, soil, and understory foliar nitrogen during a koa moth outbreak, 2013-2014 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... Tags: Ecology, Hakalau Forest National Wildlife Refuge, Hawaii Island, USGS Science Data Catalog (SDC), biota, All tags... defoliation, foliar nutrients, frass, insect outbreak, litter fall, nutrient pulse, soil nitrogen, soil phosphorus, Fewer tags Hakalau estimated frass production during a koa moth outbreak, 2013 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, All tags... frass, insect outbreak, litter fall, nutrient pulse, soil nitrogen, soil phosphorus, Fewer tags Locations of tree density and monitoring plots during koa moth outbreak, Hawaii Island, 2013-2014 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, All tags... insect outbreak, Fewer tags Parasitism rates of koa moth (Scotorythra paludicola) caterpillars during koa moth outbreak, 2013-2014 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, All tags... parasitoid wasp, Fewer tags Hawaii Island tree response to koa moth outbreak, 2013-2014 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... Tags: Ecology, Hakalau Forest National Wildlife Refuge, Hawaii Island, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... biota, defoliation, foliage regrowth, insect outbreak, Fewer tags Hakalau soil nitrogen and phosphorus during a koa moth outbreak, 2013-2014 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, All tags... frass, insect outbreak, litter fall, nutrient pulse, soil nitrogen, soil phosphorus, Fewer tags Koa moth (Scotorythra paludicola) parasitoid abundance in response to koa moth outbreak, 2013-2014 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, All tags... moth abundance, Fewer tags Koa tree abundance, size distribution, and response to koa moth outbreak in two habitat types, Hawaii Island, 2013-2014 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, All tags... insect outbreak, Fewer tags Estimate of frass produced by koa moth (Scotorythra paludicola) caterpillars in the lab 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 the amount of frass (caterpillar excrement, which is a proxy for foliage consumed) produced by koa moth caterpillars as they mature through their five larval instars (life stages). In the lab, frass was collected from individual caterpillars representing instars 3, 4 and 5, dried and weighed. From these data, a significant relationship was found between caterpillar instar and the amount of frass produced, which allowed indirect... Categories: Data; Tags: Hakalau Forest National Wildlife Refuge, Hawaii Island, frass, insect outbreak Ohia tree abundance and size distribution in two habitat types during koa moth outbreak, Hawaii Island, 2013-2014 As part of the study to evaluate the response of koa (Acacia koa) to the 2013-2014 outbreak of koa moths (Scotorythra paludicola) on Hawaii Island, we monitored plots in two habitat types at Hakalau Forest National Wildlife Refuge. We established 55 plots (each 10-m radius) in reforestation stands of densely planted koa, in which ohia (Metrosideros polymorpha) was relatively rare, and in natural forest stands, in which ohia was dominant and koa was less dense.This dataset documents the number and size of ohia trees in each of the 55 plots. Categories: Data; Tags: Hakalau Forest National Wildlife Refuge, Hawaii Island, biota, defoliation, foliage regrowth, All tags... insect outbreak, Fewer tags Hawaii Island insect response to koa moth (Scotorythra paludicola) outbreak, 2013-2014 This data release includes metadata and tabular data that document the responses of koa moths and other insects to changes in habitat conditions before and after koa (Acacia koa) defoliation by koa moth caterpillars (Scotorythra paludicola) at Hakalau Forest National Wildlife Refuge during 2013-2014. Data sets document changes in (1) koa moth abundance, (2) koa moth caterpillar abundance, (3) koa moth parasitoid abundance, (4) koa moth caterpillar frass production, and (5) koa moth caterpillar parasitism rate. Tags: Ecology, Hakalau Forest National Wildlife Refuge, Hawaii Island, USGS Science Data Catalog (SDC), biota, All tags... caterpillars, insect outbreak, moths, parasitoid wasps, Fewer tags Hakalau understory foliar carbon and nitrogen during a koa moth outbreak, 2013-2014 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, All tags... frass, insect outbreak, litter fall, nutrient pulse, soil nitrogen, soil phosphorus, Fewer tags Hakalau litterfall during a koa moth outbreak, 2013-2015 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, All tags... frass, insect outbreak, litter fall, nutrient pulse, soil nitrogen, soil phosphorus, Fewer tags Koa moth (Scotorythra paludicola) caterpillar abundance in response to koa moth outbreak, 2013-2014 The koa moth (Scotorythra paludicola) has been reported to irrupt 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 and of the koa moth caterpillar (Scotorythra paludicola) 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 caterpillars collected from koa foliage during the outbreak. To track caterpillar abundance during this event, koa branch tips were clipped from trees and the number of caterpillars within the foliage counted,... Categories: Data; Tags: Hakalau Forest National Wildlife Refuge, Hawaii Island, biota, caterpillar abundance, insect outbreak