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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.
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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...
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.
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.
    map background search result map search result map Hawaii Island tree response to 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 Hawaii Island tree response to 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