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Seedling and tree data from Sequoia National Park and Yosemite National Park


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Das, A.J., and Stephenson, N.L., 2019, Seedling and tree data from Sequoia National Park and Yosemite National Park: U.S. Geological Survey data release,


These tables include data from 25 long-term forest plots located in either Sequoia or Yosemite national park. Trees in these plots (established between 1982 and 2001) are censused annually for mortality and measured for diameter every 4 to 6 years. Plots were mostly 1 hectare (ha) in size (range 0.9 – 2.5 ha) and contained at least two 25 by 25 meter seedling sub-plots to monitor natural seedling recruitment. The largest plot, at 2.5 ha, included four such seedling sub-plots. Each sub-plot was divided into 5 by 5 meter quadrats. In almost all the plots these seedling sub-plots were established in 1999, but four plots (those with names starting with FF) were added to the study in 2002 and seedling data was only available from this date. [...]


Point of Contact :
Adrian J Das
Originator :
Adrian J Das, Nathan L Stephenson
USGS Mission Area :
SDC Data Owner :
Western Ecological Research Center
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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Seedling and tree data from Sequoia National Park and Yosemite National Park.xml
Original FGDC Metadata

62.3 KB
PlotInfogeneral.txt 843 Bytes
quadrat_precise.csv 42.75 KB
TaggedSdl.txt 837.28 KB
treedata.csv 1.93 MB
treeyears.txt 1.04 KB


Data were collected to study the population dynamics of tree seedlings.


The authors of these data require that data users contact them regarding intended use and to assist with understanding limitations and interpretation. 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. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.



  • USGS Data Release Products
  • USGS Western Ecological Research Center



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Additional Information


Type Scheme Key
DOI doi:10.5066/P96ENO3D

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