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Filters Date Range Past year (20) Past month (4) Past week (0) Past day (0) Custom range... To   Search Extensions Raster (8) Types Downloadable (8) GeoTIFF (8) Map Service (8) Raster (8) Contacts Lucas B Fortini U.S. Geological Survey - ScienceBase Christina R Leopold Pacific Island Ecosystems Research Center Ecosystems More... Categories Data (22) Data Release - Revised (1) Tag Types Theme (41) Place (41) USGS Scientific Topic Keyword (12) Harvest Set (13) Tag Schemes None (38) USGS (24) ISO 19115 Topic Category (27) Common geographic areas (14) USGS Thesaurus (4) Taxonomic (5) National Agricultural Library Thesaurus (1) More... View Results as: JSON ATOM CSV

Modeled potential presence of Ceratocystis luhuohia across Hawaiian Islands Hawaiʹi’s most widespread native tree, ʹōhiʹa lehua (Metrosideros polymorpha), has been dying across large areas of Hawaiʹi Island mainly due to two fungal pathogens (Ceratocystis lukuohia and Ceratocystis huliohia) that cause a disease collectively known as Rapid ʹŌhiʹa Death (ROD). Here we examine patterns of positive detections of C. lukuohia as it has been linked to the larger mortality events across Hawaiʹi Island. Our analysis compares the environmental range of C. lukuohia and its spread over time through the known climatic range and distribution of ʹōhiʹa. This data set is a georeferenced raster file, containing the projected potential presence of C.lukuohia across the main Hawaiian Islands using climatic... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Ceratocystis lukuohia, Hawaii, Metrosideros polymorpha, Ohia, Rapid Ohia death, All tags... biota, Fewer tags Plant growth measurements across three native species in a cloud-affected restoration site at Nakula, Maui, 2016-2019 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. Categories: Data; Tags: Maui, Maui County, Nakula Natural Area Reserve, cloud water interception, dendrometer, All tags... fog, soil moisture, Fewer tags Normalized Difference Vegetation Index (NDVI) Data for the Hawaiian Island of Lanai, Derived from 2011 WV2 imagery This dataset was developed to model habitat suitability for two ungulate species on the island of Lanai. This includes raster data derived from WorldView-2 data to create a normalized difference vegetation index (NDVI). This index, in addition to other datasets, was used to develop habitat suitability models for Axis deer and mouflon sheep. Datasets and indices derived for use in modeling efforts, as well as suitability models, are included within this data release. Tags: Axis axis, Axis deer, Generalized Linear Model, Hawaii, Lanai, All tags... Mouflon sheep, Ovis musimon, Random Generalized Linear Model, biota, habitat suitability, ungulate, Fewer tags Target Lists for Lanai Island Spatial Prioritization of Native Plant Habitat and Hunting Areas, 2021 Broadly, recovery of threatened and endangered species requires specific management actions by natural resource managers at a fine scale. We used a systematic conservation planning framework to outline conservation goals across multiple land-uses, including native habitat protection and identifying endangered species-specific recovery areas while minimizing intrusion on existing hunting areas on the island of Lanai. We used spatial prioritization tools to generate multiple scenarios where both conservation and hunting areas (deemed zones for analysis purposes) were delineated to meet land-use goals. These delineated areas will help land managers to minimize conflicts between uses for populations of non-native game... Categories: Data; Tags: Hawaii, Lanai, analytical modeling, biota, endangered species, All tags... invasive species, native species, spatial analysis, Fewer tags Field site locations of dendrometer deployment and seedling plots in a cloud-affected restoration site at Nakula, Maui, 2016-2019 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 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, soil moisture, and associated variables influence plant water deficit and growth. We also collected seedling growth and survival data within plots where grass was removed, and control plots (no grass removal), to assess if and how grass removal influenced seedling growth and soil moisture. Tags: Maui, Maui County, Nakula Natural Area Reserve, non-native grass, restoration CRB climate compatibility maps based on global and local species occurrences This single raster dataset has five different bands, one band for each of the five Bioclim models computed, based on different subsets of the available CRB occurrence data including: 1) all available global data (excluding Hawaii); 2) only occurrences within CRB's native range; 3) only occurrences in the species non-native range (excluding Hawaii); 4) only occurrences in the species insular non-native range (excluding Hawaii).; and 5) only occurrences collected in Hawaii by the CRB response team. Detailed methods for each model are described in the associated xml metadata file. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: CRB, Coconut rhinoceros beetle, Hawaii, Hawaiian Islands, Hawaiʻi, All tags... Oahu, Oryctes rhinoceros, biota, Fewer tags Hawaiian Islands habitat suitability models for highly invasive plants based on global and regional data for baseline climate scenario (1990-2009) We created a comprehensive estimate of potential distribution for a subset of 17 ecosystem modifying invasive plants (EMIPs) in Hawaiʻi. This work uses methods that integrate a wide set of data sources including agency and citizen science data, but perhaps more importantly, the integration of regional and global distribution information for these species. We built three sets of ensemble species distribution models (SDMs) for each species. We first built global and regional ensemble distribution models for each species. Then, to create a comprehensive estimate of potential invasive species distribution for our study species in Hawaiʻi, we built nested regional models that integrate our global and regional ensemble... Categories: Data; Tags: Baseline Climate, Ecology, Ensemble Model Projections, Hawai’i, Invasive Plants, All tags... Main Hawaiian Islands, Nested Models, Species Distribution Models, USGS Science Data Catalog (SDC), biota, Fewer tags Hawaiian Islands excess rainfall conditions under current (2002-2012) and future (2090-2099) climate scenarios One of the determinants of runoff is the occurrence of excess rainfall events where rainfall rates exceed the infiltration capacity of soils. To help understand runoff risks, we calculated the probability of excess rainfall events across the Hawaiian landscape by comparing the probability distributions of projected rainfall frequency and land cover-specific infiltration capacity. We characterized soil infiltration capacity based on different land cover types (bare soil, grasses, and woody vegetation) and compared them to the frequency of large rainfall events under current and future (pseudo-global warming) climate scenarios. This simple analysis allowed us to map the potential risk of excess rainfall across the... Tags: Climate Shift, Climatology, Ecohydrology, Ecology, Hawai’i, All tags... Hydrology, Infiltration, Land Use Change, Landcover, Main Hawaiian Islands, Rainfall, Runoff, USGS Science Data Catalog (SDC), Fewer tags Downscaled CHELSA projections for the Hawaiian Islands under four representative concentration pathways (RCPs; 2.6, 4.5, 6.0, and 8.5) for mid- (2040-2059), and late-century (2060-2079) scenarios Global downscaled projections are now some of the most widely used climate datasets in the world, however, they are rarely examined for representativeness of local climate or the plausibility of their projected changes. Here we show steps to improve the utility of two such global datasets (CHELSA and WorldClim2) to provide credible climate scenarios for regional climate change impact studies. Our approach is based on three steps: 1) Using a standardized baseline period, comparing available global downscaled projections with regional observation-based datasets and regional downscaled datasets (if available); 2) bias correcting projections using observation-based data; and 3) creating ensembles to make use of the... Categories: Data; Tags: Climate Shifts, Downscaling, Future Scenarios, Global Circulation Models, Hawai’i, All tags... Main Hawaiian Islands, Regional Projections, Fewer tags Downscaled WorldClim2 projections for the Hawaiian Islands under four representative concentration pathways (RCPs; 2.6, 4.5, 6.0, and 8.5) for mid- (2040-2059), and late-century (2060-2079) scenarios Global downscaled projections are now some of the most widely used climate datasets in the world, however, they are rarely examined for representativeness of local climate or the plausibility of their projected changes. Here we show steps to improve the utility of two such global datasets (CHELSA and WorldClim2) to provide credible climate scenarios for regional climate change impact studies. Our approach is based on three steps: 1) Using a standardized baseline period, comparing available global downscaled projections with regional observation-based datasets and regional downscaled datasets (if available); 2) bias correcting projections using observation-based data; and 3) creating ensembles to make use of the... Categories: Data; Tags: Climate Shifts, Downscaling, Future Scenarios, Global Circulation Models, Hawai’i, All tags... Main Hawaiian Islands, Regional Projections, Fewer tags Hawaiian Islands nested habitat suitability models for highly invasive plants for baseline climate scenario (1990-2009) We created a comprehensive estimate of potential distribution for a subset of 17 ecosystem modifying invasive plants (EMIPs) in Hawaiʻi. This work uses methods that integrate a wide set of data sources including agency and citizen science data, but perhaps more importantly, the integration of regional and global distribution information for these species. We developed transferable and comparable general species distribution models (SDMs) at global and regional scales based on a minimum set of biologically plausible predictors. We built three sets of ensemble species distribution models (SDMs) for each species. We first built global and regional ensemble distribution models for each species. Then, to create a comprehensive... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Baseline Climate, Ensemble Model Projections, Hawai’i, Invasive Plants, Main Hawaiian Islands, All tags... Nested Models, Species Distribution Models, biota, Fewer tags Dodonaea viscosa seedling count data within a cloud-affected restoration site at Nakula, Maui, 2016-2018 Non-native grass removal as part of a larger restoration strategy has been demonstrated to assist in natural recruitment of important native plant species on the island of Maui. Seedling size class data were collected to assess whether there were differences in Dodonaea viscosa seedling recruitment and survival between grass-control plots and those dominated by non-native grass in the Nakula Natural Area Reserve on Maui Island, and between grass-controlled sites. Categories: Data; Tags: Maui, Maui County, Nakula Natural Area Reserve, non-native grass, seedling recruitment, All tags... seedling survival, Fewer tags Hawaiian Islands downscaled climate projections for baseline (1983-2012), mid- (2040-2059), and late-century (2060-2079) scenarios Global downscaled projections are now some of the most widely used climate datasets in the world, however, they are rarely examined for representativeness of local climate or the plausibility of their projected changes. Here we apply steps to improve the utility of two such global datasets (CHELSA and WorldClim2) to provide credible climate scenarios for climate change impact studies in Hawaii. Our approach is based on three steps: 1) Using a standardized baseline period, comparing available global downscaled projections with regional observation-based datasets and regional downscaled datasets (if available); 2) bias correcting projections using observation-based data; and 3) creating ensembles to make use of the... Tags: Baseline Scenarios, Climate Shifts, Downscaling, Ecology, Future Scenarios, All tags... Global Circulation Models, Hawai’i, Main Hawaiian Islands, Regional Projections, USGS Science Data Catalog (SDC), Fewer tags Bare Ground Index Data for the Hawaiian Island of Lanai, Derived from 2011 WV2 Imagery This dataset was developed to model habitat suitability for two ungulate species on the island of Lanai. This includes raster data derived from WorldView-2 data to create a bare ground index. This index, in addition to other datasets, was used to create the habitat suitability models. Datasets and indices derived for use in modeling efforts, as well as suitability models, are included within this data release. Tags: Axis axis, Axis deer, Generalized Linear Model, Hawaii, Lanai, All tags... Mouflon sheep, Ovis musimon, Random Generalized Linear Model, biota, habitat suitability, ungulate, Fewer tags Species List and Federally-listed Status of Native Plant Species Used in Spatial Prioritization for Lanai Island, 2021 Broadly, recovery of threatened and endangered species requires specific management actions by natural resource managers at a fine scale. We used a systematic conservation planning framework to outline conservation goals across multiple land-uses, including native habitat protection and identifying endangered species-specific recovery areas while minimizing intrusion on existing hunting areas on the island of Lanai. We used spatial prioritization tools to generate multiple scenarios where both conservation and hunting areas (deemed zones for analysis purposes) were delineated to meet land-use goals. These delineated areas will help land managers to minimize conflicts between uses for populations of non-native game... Categories: Data; Tags: Hawaii, Lanai, biota, endangered species, native species East Maui, Hawaiʻi list of plants included for planning climate resilient recovery, 2021 Multi-species recovery planning can be a challenging natural resource management task. In collaboration with state and federal agencies, and botanical and technical experts, we developed and tested a multi-step optimization process to assist in identifying the minimum climate resilient habitat for the recovery of multiple threatened, endangered, and at-risk plant species across east Maui. The list of plant species used during this project, and number of planning units required to recover each species, are included. Categories: Data; Tags: Hawaiian Islands, Maui County, Maui Island, biota, climate resiliency, All tags... endangered, native plant, optimization, restoration, spatial conservation prioritization, Fewer tags Dodonaea viscosa seedling survival data within a cloud-affected restoration site at Nakula, Maui, 2016-2018 Non-native grass removal as part of a larger restoration strategy has been demonstrated to assist in natural recruitment of important native plant species on the island of Maui. We monitored 90 Dodonaea viscosa seedlings across three sites within grass removal treatments to understand seedling survivorship, and whether non-native grass regrowth affected survivorship, in the Nakula Natural Area Reserve on Maui Island. Categories: Data; Tags: Maui, Maui County, Nakula Natural Area Reserve, non-native grass, seedling survival Hawaiian Islands Ceratocystis luhuohia modeled habitat suitability Hawaiʹi’s most widespread native tree, ʹōhiʹa lehua (Metrosideros polymorpha), has been dying across large areas of Hawaiʹi Island mainly due to two fungal pathogens (Ceratocystis lukuohia and Ceratocystis huliohia) that cause a disease collectively known as Rapid ʹŌhiʹa Death (ROD). Here we examine patterns of positive detections of C. lukuohia as it has been linked to the larger mortality events across Hawaiʹi Island. Our analysis compares the environmental range of C. lukuohia and its spread over time through the known climatic range and distribution of ʹōhiʹa. This data set is a georeferenced raster file, containing the projected suitability for C.lukuohia across the main Hawaiian Islands using climatic variables... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Ceratocystis lukuohia, Hawaii, Metrosideros polymorpha, Ohia, Rapid Ohia death, All tags... biota, Fewer tags Hawaiian Islands climate compatibility of Coconut Rhinoceros Beetle (CRB, Oryctes rhinoceros) based on global and local species occurrences 2022 The arrival of the coconut rhinoceros beetle (CRB, Oryctes rhinoceros) in Hawaii poses serious threats to endemic palm species, crop species and iconic palm trees across the archipelago. As this invasive is found on the island of Oahu primarily at lower elevations, there are concerns about the species spreading towards high value native habitats at higher elevations and/or to other islands across the state. This dataset simply describes the suitability of the Hawaiian landscape to CRB spread based on climatic conditions (using mean annual temperature and precipitation) of global and local species occurrences. This CRB habitat suitability was calculated using a simple bioclim approach where suitability values reflect... Tags: CRB, Coconut rhinoceros beetle, Ecology, Hawaii, Hawaiian Islands, All tags... HawaiʻiHawaiʻi, Oahu, Oryctes rhinoceros, USGS Science Data Catalog (SDC), biota, Fewer tags Hawaiian Islands datasets quantifying the effects of invasive animals and plants on native forests across the archipelago 2019 (ver. 2.0 April 2020) Dataset includes publicly available geologic and rainfall data, and environmental and ecological data derived or collected for this project. Specifically, water infiltration measurements, interepreted field-saturated hydraulic conductivity values, ungulate activity, vegetation cover, general soil and weather conditions data are included. Soil samples were collected, lab analyzed, and are included in the dataset. Field-collected data are associated with plots that encompassed approximately a 3 x 3 m area; site data represent approximately 20 x 20 m. First posted: 4 March 2020 (available from author) Revised: April 13, 2020 (version 2.0) The revision is provided due to minor refinement of the dataset and updated... Categories: Data, Data Release - Revised; Tags: Hawaii, Hedychium gardnerianum, Kauai, Metrosideros polymorpha, USGS Science Data Catalog (SDC), All tags... biota, canopy cover, ecohydrology, field-saturated hydraulic conductivity, infiltration, invasive plant, mesic forest, ungulate, watershed, wet forest, Fewer tags 1 2 3 »