Filters: partyWithName: Carla M D'Antonio (X) > partyWithName: Evan M Rehm (X) > Categories: Data (X) > partyWithName: U.S. Geological Survey - ScienceBase (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Stephanie G Yelenik Tag Types Theme (4) Place (4) Tag Schemes None (4) USGS Thesaurus (4) View Results as: JSON ATOM CSV

Mean grass cover in grass removal, seed addition experiment, Hakalau Forest NWR This data release includes data and metadata on a large-scale seed addition and grass removal experiment that varied both seed rain and grass cover. All sites were within Hakalau Forest National Wildlife Refuge on Hawaii Island. Broadly, this study asks what thresholds of seed rain and native and exotic plant cover are needed for passive forest regeneration. Specifically this data decribes the percent cover of grass over time in plots where we experimantally added varying levels of seed rain and/or manipulated grass biomass manually. Categories: Data; Tags: Hakalau Forest National Wildlife Refuge, Hawaii, avian diet, botany, ecology, All tags... exotic grass, forest resources, forest restoration, land use change, plant competition, plant ecology, seed limitation, seedling recruitment, tropical forest dynamics, Fewer tags Seed rain in sampling plots, Hakalau Forest NWR This data release includes data and metadata on bird-mediated and passive seed rain for sites selected to have a range of understory cover under canopy trees (Metrosideros polymorpha and Acacia koa). All sites were within Hakalau Forest National Wildlife Refuge on Hawaii Island. Broadly, this study asks what thresholds of seed rain and native and exotic plant cover are needed for passive forest regeneration. Quantifying natural seed rain rates in different habitat types was needed to better understand how these thresholds function. Categories: Data; Tags: Hakalau Forest National Wildlife Refuge, Hawaii, avian diet, botany, ecology, All tags... exotic grass, forest resources, forest restoration, land use change, plant competition, plant ecology, seed limitation, seedling recruitment, tropical forest dynamics, Fewer tags Seedlings in seed addition, grass removal experiment, Hakalau Forest NWR This data release includes data and metadata on seedling germination and survival for a large-scale seed addition and grass removal experiment that varied both seed rain and grass cover. All sites were within Hakalau Forest National Wildlife Refuge on Hawaii Island. Broadly, this study asks what thresholds of seed rain and native and exotic plant cover are needed for passive forest regeneration. As a part of that, we created an experiment that varied seed rain in order to ascertain if seedling recruitment exhibits threshold effects. Categories: Data; Tags: Hakalau Forest National Wildlife Refuge, Hawaii, avian diet, botany, ecology, All tags... exotic grass, forest resources, forest restoration, land use change, plant competition, plant ecology, seed limitation, seedling recruitment, tropical forest dynamics, Fewer tags Basal area in sampling plots, Hakalau Forest NWR This data release includes data and metadata on tree and shrub identity and basal area within 5 m2 radius plots centered around old growth Acacia koa, planted Acacia koa, old growth Metrosideros polymorpha, and in open, exotic grass dominated sites. Our goal was to ask if understory communities differed between these habitat types and how this relates to other ecosystem factors such as seed rain and exotic grass cover. Broadly, this study asks what thresholds of seed rain and native and exotic plant cover are needed for passive forest regeneration. Categories: Data; Tags: Hakalau Forest National Wildlife Refuge, Hawaii, avian diet, botany, ecology, All tags... exotic grass, forest resources, forest restoration, land use change, plant competition, plant ecology, seed limitation, seedling recruitment, tropical forest dynamics, Fewer tags