LUQ DATA SET METADATA

Long-Term
Ongoing

Data Files and Variables

Data File Identifiersort icon Data File Collected
Ecuador old fields percent tree stem file: sugar cane right field
text/plain iconsugar-right-tree.txt
 03/01/1998 - 05/01/2010
Ecuador old fields percent tree stem file: sugar cane left field
text/plain iconsugar-left-tree.txt
 03/01/1998 - 05/01/2010
Ecuador old fields percent tree stem file: pasture right field
text/plain iconpasture-right-tree.txt
 05/01/1998 - 05/01/2010
Ecuador old fields percent tree stem file: pasture left field
text/plain iconpasture-left-tree.txt
 03/01/1998 - 05/01/2010
Ecuador old fields percent tree stem file: banana right field
text/plain iconbana-right-tree.txt
 03/01/1998 - 05/01/2010
Ecuador old fields percent tree stem file: banana left field
text/plain iconbana-left-tree.txt
 03/01/1998 - 05/01/2006
Ecuador old fields percent cover file: sugar cane right field
text/plain iconsugar-right-cover.txt
 03/01/1998 - 05/01/2010
Ecuador old fields percent cover file: sugar cane left field
text/plain iconsugar-right-cover.txt
 03/01/1998 - 05/01/2010
Ecuador old fields percent cover file: pasture right field
text/plain iconbana-right-cover.txt
 03/01/1998 - 05/01/2010
Ecuador old fields percent cover file: pasture left field
text/plain iconpasture-left-cover.txt
 03/01/1998 - 05/01/2010
Ecuador old fields percent cover file: banana right field
text/plain iconbana-right-cover.txt
 03/01/1998 - 05/01/2010
Ecuador old fields percent cover file: banana left field
text/plain iconbana-left-cover.txt
 03/01/1998 - 05/01/2010

Measurements:

Year of measurement or observation
Plot Id
Species name
Cover Percentage
Comments at the field
101
Ecuador old fields permanent plot vegetation sampling

Research Sites:

Ecuador Maquipucuna Reserve Pasture Sugar cane and Banana fields

Methods:

Twenty five (2 m X 5 m) plots have been set in each field next to the forest. These are organized in five rows with five plots each set up with the 5 m side along the forest edge. The percentage of the area of each plot covered by each species is visually estimated (file 1). For each tree stem in each plot greater than 1 m in height, we measure the basal diameter and height, and identify the species. (File 2). Six fields (Pasture left, pasture right, Sugar cane left, Sugar cane right, banana left, banana right) x 2 files each=12 total files.

Abstract

Permanent plot data is expected to show these temporal patterns: (1) rapid increases in percent cover and tree stem density, and (2) rapid turnover from early to late successional plant species. Plant-plant competition should show quick increases in intensity with native grass species and exotics as top competitors. These may lead to exclusion of some trees common after landslide disturbance. Spatial patterns of invading trees should include edge effects due to dispersal limitation with clumping of bird-dispersed species before the first five years after cow exclusion. Because of intact soil and low vegetation trees should grow, as measured by biomass(productivity), height, and basal diameter increases, significantly faster compared to colonization of landslides.

List of Publications:

Regeneration filters in post-agricultural fields of Puerto Rico and Ecuador
Early successional pattern and process after sugarcane, banana and pasture cultivation

Related Project:

Owner:

Randall W. Myster

Contact(s):

Randall W. Myster

Researcher's Keywords:

Long-Term Ecological Research (LTER)
permanent plots
LUQ
Luquillo

Complete Metadata:

more