Variables Descriptions Data File Date Rangesort ascending
Abundance of all snail species and walking sticks in 1999 File Bisleydatasummary1999_0.csv 1999-08-07 to 1999-08-20
Abundance of all snail species and walking sticks in 1994 File Bisleydatasummary1994.csv 1994-06-20 to 1994-07-07
Polydontes acutangula abundance 1989-1999 File Pa.csv 1989-06-01 to 1999-08-07
Nenia tridens abundance 1989-1999 File Nt.csv 1989-06-01 to 1999-08-07
Gaeotis nigrolineata abundance 1989-1999 File Gn.csv 1989-06-01 to 1999-08-07
Caracolus caracolla abundance 1989-1999 File Cc.csv 1989-06-01 to 1999-08-07

Status: 

Completed

Title

Bisley Grid Invertebrate Data, 1989-1999
Summary

DOI: 

10.6073/pasta/c775d9a222063b15319e8edc5d308a73

Short name: 

LUQMetadata43

Data set ID: 

43

Abstract: 

The data set consists of counts of terrestrial invertebrates from the grid at Bisley Watersheds #1 and 2, for the years 1989, 1990, 1994, and 1999. Data for 1989 and 1990 are confined to 4 species of terrestrial snails: Caracolus caracolla, Gaeotis nigrolineata, Nenia tridens, and Polydontes acutangula. Counts for other snail species and the walking stick Lamponius portoricensis are available for 1994 and 1999.

Dates
Date Range: 
1989-06-01 00:00:00 to 1999-08-07 00:00:00
People

Owner/Creator: 

Michael R. Willig

Contact: 

Michael R. Willig
Christopher P. Bloch

Additional Project roles: 

Name: Eda Melendez-Colom Role: Data Manager
Name: Christopher P. Bloch Role: Associated Researcher
Name: Gerardo Camilo Role: Associated Researcher
Name: Michael Wolf Role: Associated Researcher
Methodology

Methods: 

Thirty six points were selected from the grid at Bisley based upon accessibility during night-time surveys (for a map of the study plots, see Willig and Camilo, 1991). See the List of Codes of the 36 selected grid points. Circular quadrats (r = 5 m) were established at each point and sampled during the wet season immediately prior to Hurricane Hugo (June-August 1989), that immediately following Hugo (July-August 1990), and in July-August of 1994 and August of 1999. Sampling at each of the selected points consisted of a minimum of two individuals searching all available surfaces within a quadrat (e.g., vegetation, litter, rock, soil) for the presence of snails. All surveys occurred between 19:30 and 03:00 hours to coincide with peak snail activity.

Status: 

Completed

Time Period: 

Long-Term
Related

Related publications: 

The impact of Hurricane Hugo on two common tree snails: A long-term study
The legacy of disturbance on habitat associations of terrestrial snails in the Luquillo Experimental Forest, Puerto Rico
The effect of Hurricane Hugo on six invertebrate species in the Luquillo Experimental Forest of Puerto Rico
Long-term monitoring of snails in the Luquillo Experimental Forest of Puerto Rico: heterogeneity, scale,disturbance recovery

Related sites: 

Bisley Research Area Watershed 1 Grid points
Bisley Research Area Watersheds 2 Grid points
Categories

Core Areas: 

Researcher's Keywords: 

LTER Keywords: 

Table 4 Long-Term Classification: 

2006 Proposal Classification: 

Program: 

EML is valid: 

Yes

EML Link: 

Download EML