Found 30 datasets matching "Dieback".
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Several previously published reports and geographic information system (GIS) data layers were used to code information on site attributes for each assessment plot using the spatial join tool in...
Search relevance: 164.40 | Views last month: 0 -
This data set includes an accuracy assessment of the repeatability of identifying heavy to severe tree canopy dieback in virtual plots located within the Ohia Dieback 83,603 hectare study area.
Search relevance: 145.16 | Views last month: 0 -
We analyzed very-high-resolution imagery to assess status of Metrosideros polymorpha forests across an 83,603 hectare study area that experienced extensive canopy dieback in the 1970s on the...
Search relevance: 144.28 | Views last month: 0 -
This shapefile describes the canopy status and distribution of of ohia (Metrosideros polymorpha) forests on the eastern side of the island relative to a landscape-scale canopy dieback that...
Search relevance: 143.91 | Views last month: 0 -
We analyzed very-high-resolution imagery to assess status of Metrosideros polymorpha forests across an 83,603-hectare study area that experienced extensive canopy dieback in the 1970s on the...
Search relevance: 137.62 | Views last month: 3 -
This data set provides the locations of the ground-based vegetation plots that have been used to assess the status of the ohia forests on the eastern side of the island of Hawaii following a...
Search relevance: 131.97 | Views last month: 0 -
Climatic extremes are becoming more frequent with climate change and have the potential to cause major ecological shifts and ecosystem collapse. Along the northern Gulf of Mexico, a coastal...
Search relevance: 104.39 | Views last month: 0 -
These datasets provide spatially-explicit estimates of the magnitude of giant sequoia foliage dieback along selected trail corridors in Sequoia and Kings Canyon national parks, California, from...
Search relevance: 95.15 | Views last month: 0 -
This dataset contains data pertaining to chaparral vegetation dieback based on the difference or change in the Normalized Difference Vegetation Index (NDVI) prior to and 6 years into an extensive...
Search relevance: 90.18 | Views last month: 1 -
Climatic extremes are becoming more frequent with climate change and have the potential to cause major ecological shifts and ecosystem collapse. With the ecosystem collapse these normally healthy...
Search relevance: 77.96 | Views last month: 0 -
This dataset describes the boundary of the study area used to analyze regeneration and change in status of native ohia forests in the wet habitat on the eastern side of the island of Hawaii. This...
Search relevance: 71.23 | Views last month: 0 -
These data are satellite image-derived, classification maps of tamarisk (Tamarisk spp.) along the Colorado River in Grand Canyon National Park from river km 315 to 363, approximately from...
Search relevance: 61.98 | Views last month: 1 -
This database includes ratings of branch dieback, defoliation, beech scale and presence of Nectria spp. on high elevation American beech at least 3.5 cm in diameter in ten 20m x 20m plots...
Search relevance: 48.28 | Views last month: 0 -
This study combined a radar-based time series of Hurricane Sandy surge and estimated persistence with optical sensor-based marsh condition change to assess potential causal linkages of surge...
Search relevance: 46.55 | Views last month: 0 -
The data is from a multi-year study of the impact of an unidentified defoliator. Collected data include: diameter, height, crown class, percent live crown ratio, percent crown density, percent...
Search relevance: 41.03 | Views last month: 0 -
The ascomycete Neofusicoccum parvum, one of the causal agents of Botryosphaeria dieback, is a destructive wood‐infecting fungus and a serious threat to grape production worldwide. The capability...
Search relevance: 38.90 | Views last month: 0 -
Black mangrove (Avicennia germinans (L.) L.) has historically occurred along the Louisiana coast in saline wetland habitats, but its distribution has been sparse. Mangroves are tropical to...
Search relevance: 36.65 | Views last month: 0 -
The data release presents observations of riparian vegetation, topography, and ground cover in two river reaches of the Upper Colorado River within a river segment extending 208 river kilometers...
Search relevance: 35.69 | Views last month: 0 -
The data release presents observations of riparian vegetation, topography, and sediment quality in five river reaches of the Lower Virgin River extending downstream 62 river kilometers (rkm), from...
Search relevance: 34.50 | Views last month: 1 -
The data release presents observations of riparian vegetation, topography, and sediment quality in five river reaches of the Lower Virgin River extending downstream 62 river kilometers (rkm), from...
Search relevance: 32.41 | Views last month: 0
