DBG Physaria bellii Demographic Monitoring
Citation
Levy R (2018). DBG Physaria bellii Demographic Monitoring. Version 1.2. Kathryn Kalmbach Herbarium (Denver Botanic Gardens). Sampling event dataset https://doi.org/10.15468/q2guc1 accessed via GBIF.org on 2024-09-01.Description
This dataset consists of data collected when monitoring a population of the imperiled (G2) species Physaria bellii G. Mulligan. Observations and data were recorded once per year in 2017, 2008, 2009, 2011, 2013, and 2016. Observations were made within a 30 meter by 20 meter macro-plot, within which are smaller 30 meter by 1 meter sub-plots (may be referred to as transects). Data recorded consists of the location of plants within a sub-plot, the number of other P. bellii individuals (rosettes) within the immediate surrounding vicinity of the plant of interest, if the plant was flowering, the number of inflorescences present, the number of fruits present, and if any animal herbivory is exhibited on the plant of interest.Sampling Description
Study Extent
30 meter by 1 meter sub-plots within a 30 meter by 20 meter macro-plot.Sampling
The Physaria bellii transect is found along the western slope of the ridge. The 20m x 30m plot is located along the ridge, 43 meters north of the barbed wire fence. Each transect within the macroplot is 30 x 1 meters, and are placed at 2 meters intervals starting from 1.97 meters from the south west corner of the macroplot. On the south grid of the plot, a nail and its number are allotted. Run a tape measure 30m parallel with the ridge. Straighten tape (make sure tape measures 30m long). Some nails on the north edge are placed at more than 30m due to rocks or constraints of the soil but measurements should only be recorded to 30m. Position a 1m x 30m macro-plot in the correct location for the macro-plot to be sampled, i.e., meters 7.97-8.97 x 30m for plot 7.97m (tag #86). Before beginning actual observation, make sure you fill in the name of the site, plot # (meter), tag # (nail tag), page # per plot, date and your name. Count all Physaria bellii that fall within the plot or touch the south and west lines of the macro-plot (see Figure 1). Plants touching the north and east lines are considered out and not recorded. For X-coordinate (0-100cm) and Y-coordinate (0-30m), record the distance from the starting point to the center of the plant, i.e., 0.55m (55cm) and 22m. If you find a cluster of tiny Physaria bellii rosettes, record the distance to the center of the cluster for the X-coordinate and Y-coordinate, and then count the number of rosettes in the cluster. Record whether the plant is flowered (i.e., 0 or 1), and the number of flowering stems. If the plant has fruit, please count the number of fruit on the plant. Record whether the plant is browsed by insects or mammals, trampled by human or mammals (i.e., 0 or 1). In the comment section, describe the type of browsing observed and the condition of the plant, if any. Note: 0-absence, 1-presence.Method steps
- The Physaria bellii transect is found along the western slope of the ridge. The 20m x 30m plot is located along the ridge, 43 meters north of the barbed wire fence. Each transect within the macroplot is 30 x 1 meters, and are placed at 2 meters intervals starting from 1.97 meters from the south west corner of the macroplot. On the south grid of the plot, a nail and its number are allotted. Run a tape measure 30m parallel with the ridge. Straighten tape (make sure tape measures 30m long). Some nails on the north edge are placed at more than 30m due to rocks or constraints of the soil but measurements should only be recorded to 30m. Position a 1m x 30m macro-plot in the correct location for the macro-plot to be sampled, i.e., meters 7.97-8.97 x 30m for plot 7.97m (tag #86). Before beginning actual observation, make sure you fill in the name of the site, plot # (meter), tag # (nail tag), page # per plot, date and your name. Count all Physaria bellii that fall within the plot or touch the south and west lines of the macro-plot (see Figure 1). Plants touching the north and east lines are considered out and not recorded. For X-coordinate (0-100cm) and Y-coordinate (0-30m), record the distance from the starting point to the center of the plant, i.e., 0.55m (55cm) and 22m. If you find a cluster of tiny Physaria bellii rosettes, record the distance to the center of the cluster for the X-coordinate and Y-coordinate, and then count the number of rosettes in the cluster. Record whether the plant is flowered (i.e., 0 or 1), and the number of flowering stems. If the plant has fruit, please count the number of fruit on the plant. Record whether the plant is browsed by insects or mammals, trampled by human or mammals (i.e., 0 or 1). In the comment section, describe the type of browsing observed and the condition of the plant, if any. Note: 0-absence, 1-presence.
Additional info
Specific locality and georeference information has been redacted to protect the integrity of the population of ranked (G2/S2) species.Taxonomic Coverages
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Physaria belliicommon name: Bell's twinpod rank: species
Geographic Coverages
Exact location of the population has been redacted from this dataset to protect the integrity of this imperiled (G2) species. Please contact the listed individuals for detailed location information.
Bibliographic Citations
- Plant Phenology Ontology (PPO) http://purl.obolibrary.org/obo/ppo.owl - http://purl.obolibrary.org/obo/ppo.owl
- Spackman, S., B. Jennings, J. Coles, C. Dawson, M. Minton, A. Kratz, and C. Spurrier. 1997. Colorado rare plant field guide. Prepared for Bureau of Land Management, U.S. Forest Service and U.S. Fish and Wildlife Service by Colorado Natural Heritage Program. -
- Mulligan, Gerald A. 1966. Two new species of Physaria (Cruciferae) in Colorado. Canadian Journal of Botany. 44:1661-1665. -
- NatureServe Explorer. 2008. Accessed 30 September 2008. Online at http://www.natureserve.org/explorer/. -
Contacts
Richard Levyoriginator
position: Database Associate
Denver Botanic Gardens
909 York St
Denver
80206
Colorado
US
Telephone: 7208653657
email: richard.levy@botanicgardens.org
homepage: https://www.botanicgardens.org/team/profile/rick-levy
Richard Levy
metadata author
position: Database Associate
Denver Botanic Gardens
909 York St
Denver
80206
Colorado
US
Telephone: 7208653657
email: richard.levy@botanicgardens.org
homepage: https://www.botanicgardens.org/team/profile/rick-levy
Richard Levy
administrative point of contact
position: Database Associate
Denver Botanic Gardens
909 York St
Denver
80206
Colorado
US
Telephone: 7208653657
email: richard.levy@botanicgardens.org
homepage: https://www.botanicgardens.org/team/profile/rick-levy
Jennifer Neale
principal investigator
position: Director of Research and Conservation
Denver Botanic Gardens
909 York St
Denver
80206
Colorado
US
email: nealejr@botanicgardens.org
Richard Levy
administrative point of contact
position: Database Associate
Denver Botanic Gardens
909 York St
Denver
80206
Colorado
US
Telephone: 7208653657
email: richard.levy@botanicgardens.org
homepage: https://www.botanicgardens.org/team/profile/rick-levy
Jennifer Neale
administrative point of contact
position: Director of Research and Conservation
Denver Botanic Gardens
909 York St
Denver
80206
Colorado
US
email: nealejr@botanicgardens.org
Michelle DePrenger-Levin
administrative point of contact
position: Research Associate
Denver Botanic Gardens
909 York St
Denver
80206
Colorado
US
email: DePrengM@botanicgardens.org