Alien Plant Threat Assessment

Description

Data on alien (non-native) plant species surveys within the boundaries of disturbed sites within Yosemite National Park. Surveys were supplemented by quadrat-based subsampling of some campgrounds, camps, developments and corrals to obtain native/non-native species ratios. Surveys primarily targeted areas of human disturbance, such as campgrounds, corrals, developments, roads, trails and pastures, where alien plant species were most likely to be introduced and dispersed.

Resources

Name Format Description Link
8 UTM coordinates for sites surveyed in 1998 and 1999 https://irma.nps.gov/DataStore/DownloadFile/601834?Reference=2253446
8 Herbarium label data from plant specimens collected during surveys of disturbed areas in Yosemite in 1998 and 1999. Specimens are housed at Yosemite National Park herbarium. https://irma.nps.gov/DataStore/DownloadFile/601843?Reference=2253446
8 Lookup table for USGS quadrangle map codes used in SITE table https://irma.nps.gov/DataStore/DownloadFile/601848?Reference=2253446
47 Table by table field definitions (metadata) https://irma.nps.gov/DataStore/DownloadFile/601830?Reference=2253446
8 Data from quadrat subsamples of campgrounds, developments, and corrals surveyed in 1999 https://irma.nps.gov/DataStore/DownloadFile/601842?Reference=2253446
8 Data on tree canopy cover from point transects at alien plant survey sites in Yosemite in 1998 https://irma.nps.gov/DataStore/DownloadFile/601846?Reference=2253446
8 Survey data from campgrounds, developments, and corrals in Yosemite from 1998 and 1999 https://irma.nps.gov/DataStore/DownloadFile/601835?Reference=2253446
8 Data from quadrat subsamples of campgrounds, developments, and corrals surveyed in 1998 https://irma.nps.gov/DataStore/DownloadFile/601841?Reference=2253446
33 Field form used in 1999 https://irma.nps.gov/DataStore/DownloadFile/601833?Reference=2253446
33 Field methods used in 1998 and 1999 to collect alien plant species occurrence data in disturbed sites of Yosemite https://irma.nps.gov/DataStore/DownloadFile/601831?Reference=2253446
0 Compressed archive of files including data and documentation https://irma.nps.gov/DataStore/DownloadFile/601828?Reference=2253446
8 Survey site descriptions, including location and environmental setting https://irma.nps.gov/DataStore/DownloadFile/601840?Reference=2253446
8 Data tree canopy cover from point transects at sites surveyed for alien plant species in Yosemite in 1999 https://irma.nps.gov/DataStore/DownloadFile/601847?Reference=2253446
8 Plant counts by species recorded by volunteers doing mechanical control (hand pulling, string trimmers) under the direction of National Park Service staff https://irma.nps.gov/DataStore/DownloadFile/601849?Reference=2253446
8 Data on shrub intercept transects https://irma.nps.gov/DataStore/DownloadFile/601838?Reference=2253446
8 Data on plant species occurrence recorded during surveys of travel corridors (roads and trails) in 1998 and 1999 in Yosemite NP https://irma.nps.gov/DataStore/DownloadFile/601837?Reference=2253446
8 Categorical use level assigned to trails surveyed in 1998 and 1999. Used levels supplied by Wilderness Office, Yosemite National Park in 1998. https://irma.nps.gov/DataStore/DownloadFile/601844?Reference=2253446
8 Length (m) of transects randomly placed to subsample areas surveyed for alien plant species in Yosemite in 1998 https://irma.nps.gov/DataStore/DownloadFile/601845?Reference=2253446
33 U.S. Geological Survey Open File Report summarizing and analyzing data resulting from alien plant surveys of disturbed areas in Yosemite, Sequoia, and Kings Canyon National Park. https://irma.nps.gov/DataStore/DownloadFile/601850?Reference=2253446
8 Lookup table for codes used to represent vascular plant species recorded during alien plant species assessment surveys (nomenclature: Hickman. 1993. The Jepson Manual, 1st Edition) https://irma.nps.gov/DataStore/DownloadFile/601836?Reference=2253446

Tags

  • ecological-framework-biological-integrity-invasive-species-invasive-exotic-plants
  • exotic-species
  • plant-surveys
  • non-native-invasive-species
  • alien-plants
  • disturbance

Topics

Categories