Filters: Tags: Weeds (X)
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This study was undertaken to determine any differences in the soil-moisture percentage at various soil depths between controlled and uncontrolled sagebrush areas, and to determine the effect of sagebrush control on the snow-holding capacity, of the areas. Published in Weeds, volume 9, issue 1, on pages 27 - 35, in 1961.
A dataset of Noxious Weed infestation inventories, treatments and monitoring activities on the San Luis Valley Public Lands in South-Central Colorado.
This dataset depicts noxious and invasive weed infestations in Oregon within the Bureau of Land Management (BLM) districts of Burns, Medford, and Roseburg. Attributes are provided that give basic information about the weed infestation site such as the species of weed, how many plants there are, when the site was discovered, when the site was last revisited, whether this is a current or historical site, area of the site in acres and hectares, Bureau of Land Management district, map coordinates, and accuracy of map coordinates.
General distribution of weeds located within the Buffalo Field Office jurisdiction
Categories: Data;
Types: Downloadable;
Tags: BLM,
Buffalo Field Office,
Federal Government,
Powder River Basin,
Wyoming,
weeds_poly: This is a depiction of Noxious and Invasive Weed infestations in Oregon and Washington. Attributes are provided that give basic information about the weed infestation site such as the species of weed, how many plants there are, when the site was discovered, whether this is a current or historical site, etc.
Invasive Plant Survey Within California Coastal Watersheds from Salinas to Tijuana (currently in Draft form). This dataset is a subset including the southern portion of the study area, covering an area from the Santa Ana river watershed to the USA-Mexico border. Mapped species include giant reed, pampas grass, jubata grass, Mexican fan palm, and Canary Island date palm. More information can be found at: http://www.cal-ipc.org/ip/mapping/arundo/index.php.
Mitigation of ecological damage caused by rangeland wildfires has historically been an issue restricted to the western United States. It has focused on conservation of ecosystem function through reducing soil erosion and spread of invasive plants. Effectiveness of mitigation treatments has been debated recently. We searched for literature on postfire seeding of rangelands worldwide. Literature databases searched included SCOPUS, Dissertation Abstracts, Forest Science, Tree search, Web of Science, Google Scholar, and science.gov. Search terms within publications included fire or wildfire in combination with seeding, rehabilitation, restoration, revegetation, stabilization, chaining, disking, drilling, invasives,...
Categories: Data;
Types: Citation;
Tags: Ecology,
Land Use Change,
USGS Science Data Catalog (SDC),
chaining,
cheatgrass,
Noxious and invasive weeds identified by the BLM and US Forest Service in SW Oregon
Polygon geometry for a biological control agent treatment area. An application of a biological control. Biological control is the use of a weed's natural enemies (chiefly insects and pathogens) to reduce its population below a desired level. It can be divided into the following two approaches: inundative and classical. Inundative biological control uses mass application of an organism to attempt to eliminate a weed from an area. Like all such methods, it does not deal with the residual seed bank in the soil or prevent the weed from establishing from another source at a later date. Classical biological control uses the weed's natural enemies to establish a long-term balance between the biological control organism...
This dataset displays where the CFLRP restoration projects will occur on the Lincoln District of the Helena National Forest.
The Southwest Exotic Plant Mapping Program (SWEMP) is a collaborative effort between the United States Geological Survey and federal, tribal, state, county and NGO partners in the southwest. This project is an ongoing effort to compile and distribute regional data on the occurrence of non-native invasive plants in the southwestern United States. The database represents the known sites (represented by a point location, i.e. site) of non-native invasive plant infestations within Arizona and New Mexico, and adjacent portions of California, Colorado, Nevada and Utah. These data, collected from 1911 to 2006, represent the field observations of various state, federal, tribal and county agencies, along with some specimen...
The California Invasive Plant Council (Cal-IPC) developed a “risk mapping” approach that combines comprehensive distribution maps with maps of current and future suitable range to show where each (invasive) species is likely to spread. The distribution maps are based on a new dataset created through a major campaign to collect expert opinion data from local resource managers across the state. From this dataset, Cal-IPC recently completed risk maps and management recommendations for 43 invasive plant species in the Sierra Nevada. The proposed project will build an online tool for these data. The tool will allow natural resource managers to generate risk maps and summary statistics for areas they select, and to determine...
Meadow knapweed (Centurea pratensis) occurrences in the Benton County area, as reported by Henry Storch. Dataset is in the process of being updated by interested individuals and organizations and will be updated here when finalized.
Post-fire rehabilitation seeding in the U.S. Intermountain West, primarily conducted by the Bureau of Land Management, is designed to reduce the risk of erosion and weed invasion while increasing desirable plant cover. Seeding effectiveness is typically monitored for three years following treatment, after which a closeout report is prepared. We evaluated 220 third-year closeout reports describing 214 aerial and 113 drill seedings implemented after wildfires from 2001 through 2006. Each treatment was assigned a qualitative success rating of good, fair, poor, or failure based on information in the reports. Seeding success varied by both treatment (aerial or drill) and year. Aerial seedings were rated 13.6% good, 18.3%...
Categories: Data;
Types: Citation;
Tags: Ecology,
Land Use Change,
USGS Science Data Catalog (SDC),
chaining,
cheatgrass,
We developed a screening system to identify introduced plant species that are likely to increase wildfire risk, using the Hawaiian Islands to test the system and illustrate how the system can be applied to inform management decisions. Expert-based fire risk scores derived from field experiences with 49 invasive species in Hawai′i were used to train a machine learning model that predicts expert fire risk scores from among 21 plant traits obtained from literature and databases. The model revealed that just four variables can identify species categorized as higher fire risk by experts with 90% accuracy, while low risk species were identified with 79% accuracy. We then used the predictive model to screen 365 naturalized...
Categories: Data,
Publication;
Types: Citation,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Hawaii,
farming,
fire,
fire risk,
flammability,
There is growing interest in the facilitated movement of plants as a means of conserving or restoring species and habitats, as climate conditions and management goals change. For example, plants might be relocated to support pollinator conservation or the restoration of prairies. Some land managers, in an effort to be proactive in the face of changing environmental conditions, are also considering relocating plants to sites that are considered more similar to anticipated future conditions. However, moving plants can be ecologically and economically risky. It’s possible that pests, pathogens, or contaminant weeds can be inadvertently moved along with the target plant material. In 2016, the noxious weed Palmer amaranth...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2018,
CASC,
Completed,
Grasslands and Plains,
Grasslands and Plains,
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