Stephanie Yelenik 20180119 spreadsheet https://doi.org/10.5066/F7D21WVC Stephanie Yelenik, USGS Unknown publication This data contains the height of shrubs found along transects on the south facing slopes of Santa Cruz Island, CA. It was used in the analysis for the Manuspcript "Long-term impacts of exotic grazer removal on native shrub recovery, Santa Cruz Island, California". These sites were sampled in 2004 and 2016 to gain a longer term view on native shrub reestablishment into exotic grasslands after exotic grazer removal. A combination of overgrazing and exotic species introduction have led to the degradation of habitats worldwide. It is often unclear whether removal of exotic ungulates will lead to the natural reestablishment of native plant communities without further management inputs. Here, I return to sites on Santa Cruz Island, CA twelve years after initial sampling to gain a longer term view on native shrub reestablishment into exotic grasslands after exotic grazer removal. Santa Cruz Island was grazed by feral sheep and cattle for over a century; these exotic grazers were removed in the late 1980’s and feral pigs were removed in 2005-2006. I resampled five sites on south-facing slopes in the Central Valley of the island to quantify native shrub cover, density and size. none 20040601 20160901 observed Complete None planned -119.81929779052736 -119.69741821289064 34.03971591781685 33.98294031714773 Santa Cruz Island ISO 19115 Topic Category biota None grazer removal coastal sage scrub drought exotic plants California grasslands Artemisia californica Eriogonum arborescens USGS Metadata Identifier USGS:5a305d71e4b08e6a89d58d8b None California Channel Islands None. Please see 'Distribution Info' for details. None. Users are advised to read the data set's metadata thoroughly to understand appropriate use and data limitations. Stephanie G Yelenik U.S. Geological Survey, PACIFIC REGION Research Ecologist mailing address

Bldg 344 Chain of Craters Rd.

Hawaii National Park HI 96718 United States 808-985-6440 808-967-8568 syelenik@usgs.gov MS Excel 2013, SCI_PercentCover No formal attribute accuracy tests were conducted. No formal logical accuracy tests were conducted. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable. Plant Community Sampling Transects were established in six sites in June 2004 in the transition zones between 100% shrubs and 100% grasses on south facing slopes. A 30m tape was extended parallel to the contour line of the slope in an area with >90% (estimated observationally) cover by exotic annual grasses and random numbers were used to locate where the grass-to-shrub transect would fall. Transects were then run uphill (Supplementary Figure 1), perpendicular to the slope contour until they ended in areas with >90% cover by native shrubs. Transects varied between 50m and 95m in length depending on the size of the transition zone. Both ends were marked with metal posts. One transect could not be relocated thus the 2016 data set only includes five sites. Please see Yelenik and Levine (2010) for more detailed methods and previous data. Percent cover of all species was quantified in consecutive 5m x 5m quadrats using the transect tape as the western-most side of the quadrat. I also recorded the height, species, and meter mark of each native shrub whose canopy fell directly underneath the transect tape. I then compared these data to the original data (obtained in July 2004) in order to quantify changes in number and cover of shrubs between sample points. 20160929 Stephanie G Yelenik U.S. Geological Survey, PACIFIC REGION Research Ecologist mailing address

Bldg 344 Chain of Craters Rd.

Hawaii National Park HI 96718 United States 808-985-6440 808-967-8568 syelenik@usgs.gov SCI_ShrubHeight.csv Comma Separated Value (CSV) file containing data. Producer defined site site Producer defined Steve site Producer defined Generator site Producer defined Martha Stewart site Producer defined Vista Coreopsis site Producer defined Lagunitas Seca site Producer defined Calle Cerrado site Producer defined year year Producer defined 2004 year Producer defined 2016 year Producer defined transect_distance_m distance along transect. The 0 point is at the lower elevation point in grassland. Producer defined 0 100 m Transect_section I parsed transects into an upper, middle and lower section by roughly splitting transects and quadrats in thirds by distance (referred to as "transect section" hereafter). The sampling design was such that upper transects were dominated by native shrubs, the lower transect was dominated by exotic annual grasses, and the middle section was mixed shrub-grassland. Producer defined lower lowest section/third of transect by elevation Producer defined middle middle section/third of transect by elevation Producer defined upper upper section/third of transect by elevation Producer defined spp species of shrub Producer defined Art Artemisia californica Producer defined Earb Eriogonum arborescens Producer defined Encelia californica Encelia californica Producer defined Hazartia Hazartia spp. Producer defined height_cm height of shrub at tallest point Producer defined 0 180.0 cm alive_dead denotes whether shrub was alive (0) or dead (1) Producer defined 1 dead Producer defined 0 alive Producer defined notes notes taken at datapoint Producer defined observer notes GS ScienceBase U.S. Geological Survey mailing address

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Digital Data https://doi.org/10.5066/F7D21WVC None 20200827 Stephanie G Yelenik U.S. Geological Survey, PACIFIC REGION Research Ecologist mailing address

Bldg 344 Chain of Craters Rd.

Hawaii National Park HI 96718 United States 808-985-6440 808-967-8568 syelenik@usgs.gov FGDC Biological Data Profile of the CDGSM FGDC-STD-001.1-1999 Record created using USGS Metadata Wizard tool. (https://github.com/usgs/fort-pymdwizard)