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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...
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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 ROD. Environmental sampling could also help monitor the effect of felling ROD infected trees. We developed Passive and Active Environmental Samplers 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...
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These data contain the raw quantitative polymerase chain reaction (qPCR) results for all Ceratocystis lukuohia and huliohia testing of environmental DNA (eDNA) collected in the wind column using Passive Environmental Samplers (PES).
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These data include the quantitative Polymerase Chain Reaction (qPCR) Ceratocystis lukuohia and C. huliohia DNA confirmations of viable subcultures. These data were used to determine the accuracy of morphological identifications.
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Environmental DNA (eDNA) detection tools are becoming increasingly popular for documenting occurrence and distribution of native and invasive species. These tools can allow early detection of new diseases and invasive species and provide critical information for land management. We designed two new samplers for monitoring airborne particulates, including fungal and fern spores and plant pollen, that rely on natural wind currents (Passive Environmental Sampler) or a battery operated fan (Active Environmental Sampler). This dataset contains results of an experiment that was designed to determine probability of detecting known numbers of Ceratocystis lukuohia spores on individual slides in these samplers.
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Vegetation and ‘ōhi‘a mortality data collected during the 2016 survey of lower Puna District, Hawai`i. Data were collected at points along rural highways, secondary roads and residential streets where trained observers recorded the vegetation within a 50 m radius using the Jacobi (1989) rapid assessment. This description included tree crown cover, tree height, tree species composition, and ground cover or understory type. In addition, the proportion of dead ‘ōhi‘a was estimated, in 5% intervals, for each quarter of the station starting with the NE quadrant and proceeding counter clockwise.
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These data include metadata and associated data files associated with the manuscript, "Economical Environmental Sampler Designs for Detecting Airborne Spread of Fungi Responsible for Rapid ʽŌhiʽa Death." These data include a total of 8 datasets used for both controlled and field studies evaluating the use of Active (with battery operated fan) and Passive (dependent on wind) USGS Environmental Samplers on Hawaii Island between 2016-2018. Samplers were operated under controlled laboratory and field conditions with a commercial sampler (Rotorod® Model 20) to compare efficacy in capturing synthetic polyethylene spheres (12 - 160 µm in diameter) and also Xyleborus spp. boring dust (frass) known to contain the fungi responsible...
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The data contain the raw quantitative polymerase chain reaction (qPCR) results after pre-amplification by polymerase chain reaction for all Ceracystis lukuohia and huliohia testing of environmental DNA (eDNA) collected in Passive Environmental Samplers (PES).
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We designed two new samplers for monitoring airborne particulates, including fungal and fern spores and plant pollen, that rely on natural wind currents (Passive Environmental Sampler) or a battery operated fan (Active Environmental Sampler). Both samplers are modeled after commercial devices such as the Rotorod® and the Burkard samplers, but are more economical and require less maintenance than commercial devices. We compared our two new samplers to Rotorod® samplers using Xyleborus spp. boring dust known to contain ROD causing pathogens. The comparison was done in a large outdoor field cage to determine relative effectiveness of the three samplers for capturing windblown boring dust. The dataset contains results...
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This data release includes metadata and tabular datasets that document (1) Ceratocystis qPCR DNA detections in Passive Environmental Samplers (PES), (2) Ceratocystis qPCR DNA detections after pre-amplification, (3) wood and frass particle counts detected in PES (4) location of individual PES within the study area (5) ambrosia beetle gallery counts on felled ʻōhiʻa (6) ambrosia beetle gallery counts on insecticide treated bolts and (7) ambrosia beetles trapped in cross-vein panel traps. Data were used in the analysis of the manuscript "Effectiveness of Rapid ʻŌhiʻa Death management strategies at a focal disease outbreak on Hawaiʻi Island."
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These data contain the frass and wood particle presence information which was collected using Passive Environmental Samplers at Waipunalei. Frass is defined as boring dust created by ambrosia beetles (Coleoptera: Scolytinae) during tunnel excavation which includes fine sawdust material, beetle feces, and dead beetle body parts.
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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...
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We placed 23 USGS Passive Environmental Samplers (PES) in a grid that spanned the outbreak and monitored for airborne frass containing Ceratocystis lukuohia and C. huliohia.These data include the latitude and longitude of PES locations.
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This data release includes data and metadata containing (1) study site locations and elevation where bolts (tree stem sections) infected with Ceratocystis lukuohia and/or C. huliohia were collected on Hawai'i Island, (2) the ambrosia beetle (Coleoptera: Scolytinae) species that were reared from bolts, (3) Ceratocystis spp. viability results from culturing tests of the beetles' frass, (4) frass production estimates from three ambrosia beetle species, and (5) quantitative Polymerase Chain Reaction (qPCR) DNA results of viability subcultures. Data were used in the analysis for the manuscript "Ambrosia beetle communities and frass production in ʻōhiʻa (Metrosideros polymorpha) infected with Ceratocystis fungi responsible...
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The newly identified rapid ‘ohi‘a death (ROD; Metrosideros polymorpha) originated in the lower Puna district and its distribution has spread across Hawai‘i Island. As ROD expands it is expected that the loss of the dominant tree species will adversely affect bird populations. This project is a first attempt to describe the relationship between the impacts of ROD on the Hawaiian avifauna, especially the native Hawai‘i ‘amakihi (Hemignathus virens virens) an omnivore found in a wide range of native and nonnative habitat types. ‘Amakihi was generally rare below about 1,300 m elevation (Scott et al. 1986, Reynolds et al. 2003) but recent surveys found that the species is resident and breeding in native-dominated ‘ohi‘a...
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These data contain the longhorn beetle (Coleoptera: Cerambycidae) and ambrosia beetle (Coleoptera: Scolytinae) trap data collected at Waipunalei, Hawaii Island.
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We designed two new samplers for monitoring airborne particulates, including fungal and fern spores and plant pollen, that rely on natural wind currents (Passive Environmental Sampler) or a battery operated fan (Active Environmental Sampler). Both samplers are modeled after commercial devices such as the Rotorod® and the Burkard samplers, but are more economical and require less maintenance than commercial devices. We compared our two new samplers to Rotorod® samplers using Xyleborus spp. boring dust (frass) known to contain fungi responsible for Rapid ʽŌhiʽa Death. The comparison was done in a large outdoor field cage to determine relative effectiveness of the three samplers for capturing windblown boring dust....
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These data contain the counts of ambrosia beetle galleries on felled ʻōhiʻa trees and the heights and diameters at which the galleries were observed.
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Point transect distance sampling data collected during the 2003 to 2016 surveys of lower Puna District, Hawai`i. Data were collected at points along rural highways, secondary roads and residential streets where trained observers recorded the detection type (heard, seen, or heard then seen) and horizontal distance (exact distance in m) from the station center point to individual birds detected during an 8-min count. The data set also includes covariates that may influence the detectability of birds.
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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...


map background search result map search result map Lower Puna, Hawai`i Island, bird and habitat surveys of 2003 and 2016 Hawaii Island Environmental Sampler Comparison 2016-2018 Orchidlands Estates Ceratocystis DNA Detection 2016 Ceratocystis lukuohia spore dilution for probit analysis Ceratocystis DNA Detection in Frass During Caged Sampler Comparison Frass Counts during Caged Sampler Comparison Point transect distance data from 2003 and 2016 surveys of lower Puna, Hawai`i Vegetation and ‘ōhi‘a mortality data collected during the 2016 survey of lower Puna, Hawai`i Hawaiian Islands Ceratocystis rapid ohia death spatial analysis 2019 Modeled potential presence of Ceratocystis luhuohia across Hawaiian Islands Hawaiian Islands Ceratocystis luhuohia modeled habitat suitability Hawaiʻi Island Rapid ʻŌhiʻa Death Ambrosia Beetle Communities and Frass 2018-2019 Waipunalei ROD Management 2017-2018 Subculture qPCR DNA Results Waipunalei Beetle Trap Data Beetle Gallery Count Data Passive Environmental Sampler Locations Pre-Amplifcation qPCR Ceratocystis DNA Detections Ceratocystis Quantitative PCR Results Wood and Frass Counts Ceratocystis DNA Detection in Frass During Caged Sampler Comparison Frass Counts during Caged Sampler Comparison Orchidlands Estates Ceratocystis DNA Detection 2016 Waipunalei ROD Management 2017-2018 Waipunalei Beetle Trap Data Beetle Gallery Count Data Passive Environmental Sampler Locations Pre-Amplifcation qPCR Ceratocystis DNA Detections Ceratocystis Quantitative PCR Results Wood and Frass Counts Ceratocystis lukuohia spore dilution for probit analysis Lower Puna, Hawai`i Island, bird and habitat surveys of 2003 and 2016 Point transect distance data from 2003 and 2016 surveys of lower Puna, Hawai`i Vegetation and ‘ōhi‘a mortality data collected during the 2016 survey of lower Puna, Hawai`i Hawaii Island Environmental Sampler Comparison 2016-2018 Hawaiʻi Island Rapid ʻŌhiʻa Death Ambrosia Beetle Communities and Frass 2018-2019 Subculture qPCR DNA Results Hawaiian Islands Ceratocystis rapid ohia death spatial analysis 2019 Modeled potential presence of Ceratocystis luhuohia across Hawaiian Islands Hawaiian Islands Ceratocystis luhuohia modeled habitat suitability