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These data contain the raw quantitative polymerase chain reaction (qPCR) results for all Ceratocystis lukuohia and huliohia testing of ʻōhiʻa trees, soil, and seedlings.
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This data release includes data and metadata on tree and shrub basal area as well as bird-mediated and passive seed rain for sites selected to have a range of understory cover under canopy trees (Metrosideros polymorpha and Acacia koa). It also includes seedling germination and survival data 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.
Tags: Ecology,
Hakalau Forest National Wildlife Refuge,
Hawaii,
USGS Science Data Catalog (SDC),
avian diet, All tags...
botany,
ecology,
exotic grass,
forest resources,
forest restoration,
land use change,
plant competition,
plant ecology,
seed limitation,
seedling recruitment,
tropical forest dynamics, Fewer tags
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This data release includes data and metadata on 1) the coverage and composition of plants 2) species specific plant traits 3) sampling locations and 4) environmental data. All sites were within Hawaii Volcanoes National Park on Hawaii Island. Plant cover data were obtained from National Park Service Inventory and Monitoring Program. Plant trait data was collected for these plots in 2014. This study aims to evaluate how traits of native and exotic plant species change along environmental gradients and what this suggests for plant competition and invasion.
Categories: Data;
Tags: Ecology,
Hawaii,
Hawaii Volcanoes National Park,
USGS Science Data Catalog (SDC),
botany, All tags...
bryophyte,
ecology,
forest resources,
forest restoration,
invasive species,
plant ecology,
seedling recruitment,
tropical forest dynamics, Fewer tags
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Fog has been demonstrated to support plant growth, survival and ecosystem maintenance spanning rainfall and elevation gradients across the world. Persistent fog and strong winds on high mountain slopes in Hawaiʻi create a unique ecological environment. We collected stem and basal diameter measurements of three native plant species at Nakula Natural Area Reserve, Maui, from 2016-2019 and numerous environmental variables to examine how rain, fog and soil moisture influence plant water deficit and growth.
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This data release includes data and metadata on 1) avian diet 2) seed rain 3) understory plant composition 4) seedling abundance and 5) sampling locations for these sites. In addition it includes data on seedling abundance, grass cover and light levels for a grass removal/seed addition experiment . All sites were within Hakalau Forest National Wildlife Refuge on Hawaii Island. This study looked at multiple biotic interactions that potentially lead to self-reinforcing feedbacks within intact forest and degraded forest sites. Most of this study was done with sampling, however we also implemented an experiment in which we manipulated grass biomass and seed addition to specifically ask how these factors limit native...
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
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