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 that varied consistently with C. lukuohia prevalence (Mean annual precipication and minimum temperature of coldest month) at 500 meter resolution. This C. lukuohia habitat suitability was generated using maxent using methods described in Fortini et. al 2019 (Forest Ecology and Management). Full citation is listed in the larger work section of this XML file.

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 variables that varied consistently with C. lukuohia prevalence (Mean annual precipication and minimum temperature of coldest month) at 500 meter resolution. This modeled C. lukuohia potential presence was generated using maxent using methods described in Fortini et. al 2019 (Forest Ecology and Management). Full citation is listed in the larger work section of this XML file.

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 release consists of two rasters, one containing the projected suitability for C.lukuohia and another consisting of modeled presence/absence across the main Hawaiian Islands under current climatic conditions. This distribution model for C. lukuohia was generated using maxent using methods described in Fortini et. al 2019 (Forest Ecology and Management). Full citation is listed in the larger work section of this XML file.

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 release consists of two rasters, one containing the projected suitability for C.lukuohia and another consisting of modeled presence/absence across the main Hawaiian Islands under current climatic conditions. This distribution model for C. lukuohia was generated using maxent using methods described in Fortini et. al 2019 (Forest Ecology and Management). Full citation is listed in the larger work section of this XML file.

This data release includes data and metadata documenting Ceratocystis viability, moisture content, and beetle activity in felled and tarped ʻōhiʻa lehua (Metrosideros polymorpha) trees previously having been determined to be infected with either Ceratocystis lukuohia or Ceratocystis huliohia, the fungi that cause rapid ʻōhiʻa death (ROD).

This data release includes data and metadata documenting Ceratocystis viability, moisture content, and beetle activity in felled and tarped ʻōhiʻa lehua (Metrosideros polymorpha) trees previously having been determined to be infected with either Ceratocystis lukuohia or Ceratocystis huliohia, the fungi that cause rapid ʻōhiʻa death (ROD).

These data contain global position system (GPS) coordiantes of confirmed and suspected Ceratocystis infected ʻōhiʻa lehua (Metrosideros polymorpha) trees.

This data release includes metadata and tabular data that describes the location, diameter and treatment date for each ohia (Metrosideros polymorpha) involved in the study. Overall, 27 trees were selected for inclusion in the study. Six were inoculated with Ceratocystis lukuohia and three were not inoculated and acted as controls, at each of three study sites.

This data release includes metadata and tabular data that documents the response of ohia (Metrosideros polymorpha) and ambrosia beetles (Curculionidae, Xyleborini) following the intentional inoculation of healthy ohia to Ceratocystis lukuohia, one of two fungal pathogens that causes Rapid Ohia Death (ROD). Ohia were inoculated with the ROD pathogen at three sites differing in elevation on the Island of Hawaii during January and June 2019. Inoculated and control trees were monitored for changes in foliage condition, beetle attack rates, beetle species composition, and the viability of the fungi within the tree through August 2021. These data are represented in the following seven files: 1) descriptions of trees, 2) tree conditions and the presence of beetle galleries, 3) beetles collected in boring dust traps (BDTs), 4) viability of fungi in beetle frass, 5) beetles collected on sticky traps, 6) descriptions of felled trees, and 7) beetles emerging from felled trees.

Rapid ʽŌhiʽa Death (ROD) currently threatens ōhiʽa lehua (Metrosideros polymorpha) on Hawaiʽi Island. First identified in Puna in 2014, the disease has now spread island wide. Besides direct sampling of trees, environmental sampling could serve as an easier and broader strategy to detect Ceratocystis spp., the fungi causing Rapid Ohia Death (ROD). Envrionmental sampling could also help monitor the effect of felling ROD infected trees. We developed Passive and Active Environmental Samplers for collecting airborne particulates and deployed them at a property in Puna, where both C. lukuohia, and C. huliohia had been detected, and where the land owner practiced the management method of felling infected trees. We set up 2 Active Environmental Samplers (modified mosquito traps connected to a battery that uses a fan to continuously draw in air) and 3 Passive Environmental Samplers (uses a vane to move in the direction of the wind without the use of electricity) from July 12th to October 25th, 2016. The Active Traps contained one slide (1 replicate) each, while the Passive Traps contained 4 slides (4 replicates) each. Wind and precipitation data from a National Oceanic and Atmospheric Agency (NOAA) weather station at the Hilo airport was used in analysis. The dataset contains a list of sampling weeks, their start and end dates, and whether or not tree felling occurred during that week.