Filters: Tags: Rapid Ohia death (X)
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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...
Categories: Data;
Types: Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: Ceratocystis lukuohia,
Hawaii,
Metrosideros polymorpha,
Ohia,
Rapid Ohia death,
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...
Categories: Data;
Tags: Ceratocystis,
Environmental DNA,
Environmental Sampler,
Hawaiii,
Management,
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).
Categories: Data;
Tags: Hawaii,
Hawaii Island,
Ohia lehua,
Passive Environmental Samplers,
Rapid Ohia Death,
These data include bark and ambrosia beetle (Coleoptera: Curculionidae) species collected in cross-vane panel traps (CVPT) baited with a 1:1 methanol:ethanol lure in Northeastern ʻōhiʻa lehua (Metrosideros polymorpha) dominant forests of Kauaʻi, Hawaiʻi in 2021.
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.
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.
Categories: Data;
Tags: Hawai`i, USA,
Point transect distance sampling,
Puna District,
Rapid Ohia Death,
biota,
These data provide geographic coordinates (latitude and longitude) and elevation of Passive Environmental Samplers (PES) that were deployed to detect airborne propagules of the invasive fungi that cause Rapid Ohia Death (Ceratocystis lukuohia and C. huliohia) and Ohia Rust (Austropuccina psidii).
Categories: Data;
Tags: Austropuccinia psidii,
Ceratocystis huliohia,
Ceratocystis lukuohia,
Hawaii,
Ohia Rust,
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.
Categories: Data;
Tags: Ceratocystis,
Environmental DNA,
Environmental Sampler,
Hawaiii,
Metrosideros polymorpha,
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...
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...
Categories: Data;
Tags: Ceratocystis,
Environmental DNA,
Environmental Sampler,
Hawaiii,
Metrosideros polymorpha,
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).
These data contain the results of ʻōhiʻa seedlings challenged with different ambrosia beetle (Coleoptera: Curculionidae) species that were exposed to either Ceratocystis lukuohia or Ceratocystis huliohia in culture. Disease development, viability, and DNA confirmation data were recorded.
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."
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.
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,
These data contain ambrosia beetle (Coleoptera: Curculionidae) trapping data using two different repellents in two different trials at Waiākea Forest Reserve. Beetles were trapped using cross vane panel traps equipped with 50:50 Ethanol:Methanol lures in the first trial and with black panel multi-traps equipped with 100% Ethanol lures in the second trial. Both trials tested the ability of two different beetle repellents, one verbenone formulation, and one verbnone + methyl salicylate, to deter beetle catch.
These data contain the documentation of ambrosia beetle (Coleoptera: Curculionidae) attack on healthy ʻōhiʻa trees. Beetles were collected on sticky cards.
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.
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...
These data contain the longhorn beetle (Coleoptera: Cerambycidae) and ambrosia beetle (Coleoptera: Scolytinae) trap data collected at Waipunalei, Hawaii Island.
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