Skip to main content
Advanced Search

Filters: Tags: Defoliation (X)

13 results (7ms)   

View Results as: JSON ATOM CSV
thumbnail
This is part of a 3-tiered dataset consisting ofIDS_shapes: footprint polygon featuresIDS_attrib: attribute descriptions of polygonsIDS_rollup: lookup information for features that are summarized as a group (rollup)This dataset is a compilation of forest insect, disease and abiotic damage mapped by aerial detection surveys on forested areas in the United States. At this time, the National Aerial Survey Data Standards require only mortality and defoliation data be collected and reported. However, many cooperators collect data on other types of damage and therefore, the national database has been designed to accommodate these data. Low-level flights, typically 1,000 to 2,000 feet above ground level, are used to map...
thumbnail
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...
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.
thumbnail
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...
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.
thumbnail
This is part of a 3-tiered dataset consisting ofIDS_shapes: footprint polygon featuresIDS_attrib: attribute descriptions of polygonsIDS_rollup: lookup information for features that are summarized as a group (rollup)This dataset is a compilation of forest insect, disease and abiotic damage mapped by aerial detection surveys on forested areas in the United States. At this time, the National Aerial Survey Data Standards require only mortality and defoliation data be collected and reported. However, many cooperators collect data on other types of damage and therefore, the national database has been designed to accommodate these data. Low-level flights, typically 1,000 to 2,000 feet above ground level, are used to map...
The effect of full sunlight, 60%, or 90% attenuated light on photosynthetic rate, growth, leaf morphology, dry weight allocation patterns, phenology, and tolerance to clipping was examined in the glasshouse for steppe populations of the introduced grass, Bromus tectorum. The net photosynthetic response to light for plants grown in shade was comparable to responses for plants grown in full sunlight. Plants grown in full sunlight produced more biomass, tillers and leaves, and allocated a larger proportion of their total production to roots than plants grown in shade. The accumulation of root and shoot biomass over the first two months of seedling growth was primarily responsible for the larger size at harvest of plants...
thumbnail
This is part of a 3-tiered dataset consisting ofIDS_shapes: footprint polygon featuresIDS_attrib: attribute descriptions of polygonsIDS_rollup: lookup information for features that are summarized as a group (rollup)This dataset is a compilation of forest insect, disease and abiotic damage mapped by aerial detection surveys on forested areas in the United States. At this time, the National Aerial Survey Data Standards require only mortality and defoliation data be collected and reported. However, many cooperators collect data on other types of damage and therefore, the national database has been designed to accommodate these data. Low-level flights, typically 1,000 to 2,000 feet above ground level, are used to map...
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.
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...
    map background search result map search result map BLM REA NGB 2011 Sudden Aspen Decline from the Insect and Disease Survey (IDS) Database in the NGB BLM REA NGB 2011 Insect and Disease Survey (IDS) Database BLM REA NGB 2011 Other Conifer Insect and Disease Survey (IDS) Database used in NGB Hawaii Island tree response to koa moth outbreak, 2013-2014 Hakalau litter, frass, soil, and understory foliar nitrogen during a koa moth outbreak, 2013-2014 Locations of tree density and monitoring plots during koa moth outbreak, Hawaii Island, 2013-2014 Ohia tree abundance and size distribution in two habitat types during koa moth outbreak, Hawaii Island, 2013-2014 Koa tree abundance, size distribution, and response to koa moth outbreak in two habitat types, Hawaii Island, 2013-2014 Hakalau estimated frass production during a koa moth outbreak, 2013 Hakalau litterfall during a koa moth outbreak, 2013-2015 Hakalau soil nitrogen and phosphorus during a koa moth outbreak, 2013-2014 Hakalau understory foliar carbon and nitrogen during a koa moth outbreak, 2013-2014 Hawaii Island tree response to koa moth outbreak, 2013-2014 Hakalau litter, frass, soil, and understory foliar nitrogen during a koa moth outbreak, 2013-2014 Locations of tree density and monitoring plots during koa moth outbreak, Hawaii Island, 2013-2014 Ohia tree abundance and size distribution in two habitat types during koa moth outbreak, Hawaii Island, 2013-2014 Koa tree abundance, size distribution, and response to koa moth outbreak in two habitat types, Hawaii Island, 2013-2014 Hakalau estimated frass production during a koa moth outbreak, 2013 Hakalau litterfall during a koa moth outbreak, 2013-2015 Hakalau soil nitrogen and phosphorus during a koa moth outbreak, 2013-2014 Hakalau understory foliar carbon and nitrogen during a koa moth outbreak, 2013-2014 BLM REA NGB 2011 Insect and Disease Survey (IDS) Database BLM REA NGB 2011 Sudden Aspen Decline from the Insect and Disease Survey (IDS) Database in the NGB BLM REA NGB 2011 Other Conifer Insect and Disease Survey (IDS) Database used in NGB