D. Lawrence Venable, Arturo Flores-Martinez, Helene C. Muller-Landau, Greg Barron-Gafford, and Judith X. Becerra. 2008. Seed dispersal of desert annuals. Ecology 89:2218–2227.


Supplement 1

Seedling counts for each dispersal transect.
Ecological Archives
E089-127-S1
.

Copyright


Authors
File list (downloads)
Description


Author(s)

D. Lawrence Venable
Department of Ecology and Evolutionary Biology
University of Arizona
1041 East Lowell
Tucson, Arizona 85721, USA
E-mail : venable@email.arizona.edu

Arturo Flores-Martínez
Dir. Gral de Estadística e Información Ambiental
SEMARNAT
Blvd. Adolfo Ruiz Cortinez No. 4209
México DF. CP 14210, MEXICO
E-mail : afloresm@semarnat.gob.mx

Helene C. Muller-Landau
Smithsonian Tropical Research Institute
Unit 0948 APO-AA 34002, USA and
Department of Ecology, Evolution, and Behavior
University of Minnesota
St. Paul, Minnesota 55108, USA
E-mail : mullerh@si.edu

Greg Barron-Gafford
Department of Ecology and Evolutionary Biology
University of Arizona
1041 East Lowell
Tucson, Arizona 85721, USA
E-mail : gregbg@email.arizona.edu

Judith X. Becerra
Department of Entomology
University of Arizona
Tucson, Arizona 85721, USA
E-mail : becerra@ag.arizona.edu


File list

rawdata.zip -- All raw transect seedling count data files at once.

see Download page for individual files.

Description

The border between source and removal areas is at distance "0" with densities on the source side assigned negative values and densities on the removal side assigned positive values. PERE is Pectocarya recurvata and SCBA is Schismus barbatus. Distances are in centimeters counting out from the border.

Transect file names are a concatenation of dispersal type, direction, species, and replicate number. Dispersal type equivalents are : Shrub = dispersal from open into shrub; Open = dispersal from shrub into open; and Both = complete exclusion. Direction is either "Up" for up-slope or "Down" for down-slope. Each file is in tab separated ascii format and contains the raw data for that dispersal transect..

Column definitions :

1 = data set number (a value required by the MatLab code for running transects in batches but that has no inherent meaning)

2 = distance from transect border in centimeters

3 = seedling count


ESA Publications | Ecological Archives | Permissions | Citation | Contacts