The Bureau of Land Management's National Invasive Species Information Management System (NISIMS) is designed to collect field data and store it in a standard database to allow for data sharing and reporting at the local, state and national levels. At this time, the system reports and tracks weed infestations only, Future versions of the system will report and track infestations by all taxa including weeds, birds, fish, and algae. The system also reports and tracks treatments of these invasive weed species infestations on public lands. The tools are based on the use of the BLM system of Enterprise Geographic Information System (EGIS) Architecture approved nationally in 2003. It also depends on the Geospatial Services Strategic Plan approved nationally by BLM management in 2008. It is the first BLM system with seamless tools to collect scientific data in remote locations throughout all BLM lands and to feed that data regularly into national, official BLM geospatial database. Though the infestation data included here represents a snapshot of actual infestations of the individual species, it doesn't represent the total infestations of the particular species. Only a fraction of the lands the BLM administers has been inventoried, and not all of that data has been brought into NISIMS.
此資源出現紀錄的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 101,203 筆紀錄。
下載最新版本的 Darwin Core Archive (DwC-A) 資源，或資源詮釋資料的 EML 或 RTF 文字檔。
Reitsma J (2021): BLM - National Invasive Species Information Management System - Plants. v1.2. United States Geological Survey. Dataset/Occurrence. https://bison.usgs.gov/ipt/resource?r=blm_nisims&v=1.2
此資料的發布者及權利單位為 United States Geological Survey。 To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.
Occurrence; invasive plants; invasive species; words as described here: http://www.blm.gov/style/medialib/blm/wo/Planning_and_Renewable_Resources/nisims.Par.31448.File.dat/NISIMS_2_Data%20Dictionary_Public.pdf; Metadata; Observation
longitude -77.19246 to -150.7504 latitude 31.88719 to 67.3851
|界定座標範圍||緯度南界 經度西界 [31.887, -150.75], 緯度北界 經度東界 [67.385, -77.192]|
101,203 observations of 331 unique taxa.
|起始日期 / 結束日期||2012-12-31 / 2019-01-30|
|計畫名稱||Bureau of Land Management Invasive Species Information Management System|
|研究區域描述||Federally owned lands of the Bureau of Land Management|
|研究設計描述||Data is collected using BLM weed monitoring protocol|
Methodology and required software are described here: http://www.blm.gov/wo/st/en/prog/more/weeds/nisims/What_Contractors_and_Partners_Need_and_How_to_Get_it.html
|研究範圍||Management areas throughout the US owned by the Bureau of Land Management.|
|品質控管||The user manual describes the qa/qc steps taken by participating weed managers, here: http://www.blm.gov/style/medialib/blm/wo/Planning_and_Renewable_Resources/nisims.Par.39684.File.dat/NISIMS_2_User_Guide_Public.pdf|
- As per the user manual.
During processing of the dataset where percent cover=0, occurrence status was interpreted as 'absent'.