On the 1998-1999 invasives survey
Please note that we do not distribute the actual MS Access database outside of our office.
To cite the data from this survey, use the following citation:
Randall, J.M., & Rice, B.A. 2003. 1998-1999 Survey of Invasive Species on Lands Managed by The Nature Conservancy, http://tncinvasives.ucdavis.edu/survey.html, updated January 2003.
Summary survey data
If you are interested in some quick, factoid type data about the extent of invasive species in TNC preserves, this is something you would be interested in. This also has some valuable qualifiers about the entire survey.
View summary report
Plants reported by staff
This is a list of those plant species that were reported in the survey. The presence or absence of a species on this list should not, by itself, be reason to classify a plant as "invasive", etc. (Note also our disclaimer regarding organism lists on our web site.)
View plant data
Non-plant invasives reported by staff
This is a list of non-plant organisms that were reported in the survey. This list contains species that may be native to an area, but which interfere with the specific management goals for the conservation area. Note our disclaimer regarding organism lists on our web site.
View non-plant data report
TNC staff can request these hardcopy-only weed reports by sending email to our team (bamrice(at)ucdavis.edu). (Specify which weed interests you--weed reports are available for any species listed above.) Designed for land managers, these reports are probably the most important (and lengthy) reports we produced from our database. Organized by plant species, they detail information on threat severity (including species or communities threatened), control methods used, and their effectiveness. The term "weed" in the report title merely indicates that the plant interfered with the specific management goals for a conservation area.
Animal pest reports
TNC staff can request these hardcopy-only documents by sending email to our team (bamrice(at)ucdavis.edu). These are similar to weed reports, although not as detailed. Animal pest reports are available for any animal listed above. The term "pest" merely indicates that the animal interfered with the specific management goals for a conservation area.
State weed woe reports
Request these reports from us via email (bamrice(at)ucdavis.edu). Designed for land managers (a.k.a. stewards, or site-based practitioners), these are listings of the weeds reported for each state, the control methods being used against the weed, and subjective ratings by managers as to the severity of the weed's threat. If you are a land manager, you should review not only your state's report, but also those of adjacent states!
State Weed Reports
Request these reports from us via email (bamrice(at)ucdavis.edu). Designed for staff at the Director of Science/Stewardship level, these list the weeds, control methods, and staff/volunteer hours and dollar amounts being used against weeds. Information on animal pests is also included.
Weed survey questionnaires
These are the MS Word surveys used to query staff. The survey recorded data for as many as ten weed taxa. Staff reporting more than ten weed taxa used the weed survey supplement. In hindsight these forms were admittedly somewhat primitive, but they were useful and ultimately effective in obtained the required information.
Download weed survey
Download weed survey supplement
Thumbnail reports of invasive species projects being done by The Nature Conservancy.
Invasive species management is not impossible. Read these success stories and be inspired.
Assessments of invasive species issues for various operating units in The Nature Conservancy.
Curious to see what the core staff of The Nature Conservancy's Global Invasive Species Team looks like? Yes, we have pity upon you, but we also have this link!
Learn about our 1999 survey--a snapshot of invasive species issues across all of The Nature Conservancy.
Address information to help you contact GIST staff.
Other site resources
A fully-integrated hardware and software application for mapping invasives and tracking management actions.
A review of remote sensing technology, as applied to invasive species detection and mapping.
One of the largest collections of photographs of invasive species (mostly plants) available on the web.
Species which are either new to an area, or are showing alarming symptoms such as signs of signicant, new expansion.
Adaptive management planning tools such as model plans for sites, weed control templates, etc. Very useful!
Join our listserve to voice your frustrations and trumpet your successes.
Powerpoint presentations on invasive species, weed pamphlets, on developing weed management areas, and more.