LUQ LTER DATA SETS DOCUMENTATION FORM
ON-LINE VERSION
A DATA SET is a series of observations collected by the same methodology. Each data set should have documentation sufficient for someone unfamiliar with the research to replicate the study. Data sets may be broken into subsets (data files) that are discrete in space and time, in that order. The documentation for a data set should include all spatial and temporal subdivisions of the data.
(Data, Abstract, Methods, Variables)
NOTES:
PERSON(S) COMPLETING THIS FORM: E-MAIL ADDRESS:
|
Christopher P. Bloch |
PROJECT TITLE: Community Ecology of Land Snails Survey (Long-term population dynamics of snails in the tabonuco forest)
PROJECT DESCRIPTION: Terrestrial gastropods and walking sticks were sampled at 40 points on the Luquillo Forest Dynamics Plot at El Verde twice annually from 1991-2002 to investigate long-term population and community dynamics and response to disturbance.
Densities
Densities of invertebrates and apparency of plant species are estimated to investigate the effects of disturbance on long-term population dynamics, habitat associations, and spatial distributions.
Habitat
To investigate habitat associations of terrestrial invertebrates, apparency of 17 plant groups (species, genera, families) from 0-3 m from the ground was estimated at each of the sampling localities where invertebrates were surveyed.
LTER CORE AREAS:(Annotate all that apply)
| Population Dynamics |
|
Disturbance Patterns |
LEF LTER 1 RESEARCH TOPIC: (Annotate all that apply)
| Recovery After Disturbance |
|
Spatial and Temporal Distribution of Populations |
We define a data file as a component of a data set. A data set can have
only one data file or more. Basically, different data files have different data
structures or format .
DATA SET FILES (SUBSETS):
|
Data File No. |
Data File Identifier |
On-Line Filename |
Starting Date |
Periodicity of sample |
End Period |
| 1 | Big Grid Snail MNKA (Snail Abundance (MNKA)) |
BigGridSnailCaptures1991-2007.txt | June, 1992 | Seasonal (Wet, Dry) | June 29, 2007 |
| 2 |
Walking Stick MNKA |
WalkingStickMNKA1992-2004.txt | June, 1991 | Seasonal (Wet, Dry) | June, 2004 |
| 3 |
BG Snail M-R95W |
BGSnailM-R95W132-229RECAP.txt | June, 1995 | Wet season | June, 1995 |
| 3a | BG Snail M-R95W (Mark-Recapture Data from Wet Season 1995) |
BGSnailM-R95W231-328RECAP.txt | June, 1995 | Wet season | June, 1995 |
| 3b | BG Snail M-R95W (Mark-Recapture Data from Wet Season 1995) |
BGSnailM-R95W330-422RECAP.txt | June, 1995 | Wet season | June, 1995 |
| 3c | BG Snail M-R95W (Mark-Recapture Data from Wet Season 1995) |
BGSnailM-R95W37-130RECAP.txt | June, 1995 | Wet season | June, 1995 |
| 4 |
BG Snail M-R96D |
BGSnailM-R96D132-229RECAP.txt | March, 1996 | Dry season | March, 1996 |
| 4a | BG Snail M-R96D (Mark-Recapture Data from Dry Season 1996) |
BGSnailM-R96D231-328RECAP.txt | March, 1996 | Dry season | March, 1996 |
| 4b | BG Snail M-R96D (Mark-Recapture Data from Dry Season 1996) |
BGSnailM-R96D330-422RECAP.txt | March, 1996 | Dry season | March, 1996 |
| 4c | BG Snail M-R96D (Mark-Recapture Data from Dry Season 1996) |
BGSnailM-R96D37-130RECAP.txt | March, 1996 | Dry season | March, 1996 |
| 5 |
BG Snail M-R96W |
BGSnailM-R96W132-229RECAP.txt | June, 1996 | Wet season | June, 1996 |
| 5a | BG Snail M-R96W (Mark-Recapture Data from Wet Season 1996) |
BGSnailM-R96W231-328RECAP.txt | June, 1996 | Wet season | June, 1996 |
| 5b | BG Snail M-R96W (Mark-Recapture Data from Wet Season 1996) |
BGSnailM-R96W330-422RECAP.txt | June, 1996 | Wet season | June, 1996 |
| 5c | BG Snail M-R96W (Mark-Recapture Data from Wet Season 1996) |
BGSnailM-R96W37-130RECAP.txt | June, 1996 | Wet season | June, 1996 |
| 6 |
BG Snail M-R97D |
BGSnailM-R97D132-229RECAP.txt | March, 1997 | Dry season | March, 1997 |
| 6a | BG Snail M-R97D (Mark-Recapture Data from Dry Season 1997) |
BGSnailM-R97D231-328RECAP.txt | March, 1997 | Dry season | March, 1997 |
| 6b | BG Snail M-R97D (Mark-Recapture Data from Dry Season 1997) |
BGSnailM-R97D330-422RECAP.txt | March, 1997 | Dry season | March, 1997 |
| 6c | BG Snail M-R97D (Mark-Recapture Data from Dry Season 1997) |
BGSnailM-R97D37-130RECAP.txt | March, 1997 | Dry season | March, 1997 |
| 7 |
BG Snail M-R97W |
BGSnailM-R97W132-229RECAP.txt | June, 1997 | Wet season | June, 1997 |
| 7a | BG Snail M-R97W (Mark-Recapture Data from Wet Season 1997) |
BGSnailM-R97W231-328RECAP.txt | June, 1997 | Wet season | June, 1997 |
| 7b | BG Snail M-R97W (Mark-Recapture Data from Wet Season 1997) |
BGSnailM-R97W330-422RECAP.txt | June, 1997 | Wet season | June, 1997 |
| 7c | BG Snail M-R97W (Mark-Recapture Data from Wet Season 1997) |
BGSnailM-R97W37-130RECAP.txt | June, 1997 | Wet season | June, 1997 |
| 8 |
BG Snail M-R98D |
BGSnailM-R98D132-229RECAP.txt | March, 1998 | Dry season | March, 1998 |
| 8a | BG Snail M-R98D (Mark-Recapture Data from Dry Season 1998) |
BGSnailM-R98D231-328RECAP.txt | March, 1998 | Dry season | March, 1998 |
| 8b | BG Snail M-R98D (Mark-Recapture Data from Dry Season 1998) |
BGSnailM-R98D330-422RECAP.txt | March, 1998 | Dry season | March, 1998 |
| 8c | BG Snail M-R98D (Mark-Recapture Data from Dry Season 1998) |
BGSnailM-R98D37-130RECAP.txt | March, 1998 | Dry season | March, 1998 |
| 9 |
BG Snail M-R98W |
BGSnailM-R98W132-229RECAP.txt | June, 1998 | Wet season | June, 1998 |
| 9a | BG Snail M-R98W (Mark-Recapture Data from Wet Season 1998) |
BGSnailM-R98W231-328RECAP.txt | June, 1998 | Wet season | June, 1998 |
| 9b | BG Snail M-R98W (Mark-Recapture Data from Wet Season 1998) |
BGSnailM-R98W330-422RECAP.txt | June, 1998 | Wet season | June, 1998 |
| 9c | BG Snail M-R98W (Mark-Recapture Data from Wet Season 1998) |
BGSnailM-R98W37-130RECAP.txt | June, 1998 | Wet season | June, 1998 |
| 10 |
BG Snail M-R99D |
BGSnailM-R99D132-229RECAP.txt | March, 1999 | Dry season | March, 1999 |
| 10a |
BG Snail M-R99D |
BGSnailM-R99D231-328RECAP.txt | March, 1999 | Dry season | March, 1999 |
| 10b | BG Snail M-R99D (Mark-Recapture Data from Dry Season 1999) |
BGSnailM-R99D330-422RECAP.txt | March, 1999 | Dry season | March, 1999 |
| 10c | BG Snail M-R99D (Mark-Recapture Data from Dry Season 1999) |
BGSnailM-R99D37-130RECAP.txt | March, 1999 | Dry season | March, 1999 |
| 11 | BG Snail M-R99W (Mark-Recapture Data from Wet Season 1999) |
BGSnailM-R99W132-229RECAP.txt | June, 1998 | Wet season | June, 1998 |
| 11a | BG Snail M-R99W (Mark-Recapture Data from Wet Season 1999) |
BGSnailM-R99W231-328RECAP.txt | June, 1998 | Wet season | June, 1998 |
| 11b | BG Snail M-R99W (Mark-Recapture Data from Wet Season 1999) |
BGSnailM-R99W330-422RECAP.txt | June, 1998 | Wet season | June, 1998 |
| 11c | BG Snail M-R99W (Mark-Recapture Data from Wet Season 1999) |
BGSnailM-R99W37-130RECAP.txt | June, 1998 | Wet season | June, 1998 |
| 12 |
BG Snail M-R00D |
BGSnailM-R00D132-229RECAP.txt | March, 2000 | Dry season | March, 2000 |
| 12a | BG Snail M-R00D (Mark-Recapture Data from Dry Season 2000) |
BGSnailM-R00D231-328RECAP.txt | March, 2000 | Dry season | March, 2000 |
| 12b | BG Snail M-R00D (Mark-Recapture Data from Dry Season 2000) |
BGSnailM-R00D330-422RECAP.txt | March, 2000 | Dry season | March, 2000 |
| 12c | BG Snail M-R00D (Mark-Recapture Data from Dry Season 2000) |
BGSnailM-R00D37-130RECAP.txt | March, 2000 | Dry season | March, 2000 |
| 13 |
BG Snail M-R00W |
BGSnailM-R00W132-229RECAP.txt | July, 2000 | Wet season | July, 2000 |
| 13a | BG Snail M-R00W (Mark-Recapture Data from Wet Season 2000) |
BGSnailM-R00W231-328RECAP.txt | July, 2000 | Wet season | July, 2000 |
| 13b | BG Snail M-R00W (Mark-Recapture Data from Wet Season 2000) |
BGSnailM-R00W330-422RECAP.txt | July, 2000 | Wet season | July, 2000 |
| 13c | BG Snail M-R00W (Mark-Recapture Data from Wet Season 2000) |
BGSnailM-R00W37-130RECAP.txt | July, 2000 | Wet season | July, 2000 |
| 14 | BG Snail M-R01D (Mark-Recapture Data from Dry Season 2001) |
BGSnailM-R01D37-130RECAP.txt | March, 2001 | Dry season | March, 2001 |
| 14a | BG Snail M-R01D (Mark-Recapture Data from Dry Season 2001) |
BGSnailM-R01D132-229RECAP.txt | March, 2001 | Dry season | March, 2001 |
| 14b | BG Snail M-R01D (Mark-Recapture Data from Dry Season 2001) |
BGSnailM-R01D231-328RECAP.txt | March, 2001 | Dry season | March, 2001 |
| 14c | BG Snail M-R01D (Mark-Recapture Data from Dry Season 2001) |
BGSnailM-R01D330-422RECAP.txt | March, 2001 | Dry season | March, 2001 |
| 15 | BG Snail M-R01D (Mark-Recapture Data from Wet Season 2001) |
BGSnailM-R01W37-130RECAP.txt | July, 2001 | Wet season | July, 2001 |
| 15a | BG Snail M-R01D (Mark-Recapture Data from Wet Season 2001) |
BGSnailM-R01W132-229RECAP.txt | July, 2001 | Wet season | July, 2001 |
| 15b | BG Snail M-R01D (Mark-Recapture Data from Wet Season 2001) |
BGSnailM-R01W231-328RECAP.txt | July, 2001 | Wet season | July, 2001 |
| 15c | BG Snail M-R01D (Mark-Recapture Data from Wet Season 2001) |
BGSnailM-R01W330-422RECAP.txt | July, 2001 | Wet season | July, 2001 |
| 16 | BG Snail M-R02D (Mark-Recapture Data from Dry Season 2002) |
BGSnailM-R02D37-130RECAP.txt | May, 2002 | Dry Season | May, 2002 |
| 16a | BG Snail M-R02D (Mark-Recapture Data from Dry Season 2002) |
BGSnailM-R02D132-229RECAP.txt | May, 2002 | Dry Season | May, 2002 |
| 16b | BG Snail M-R02D (Mark-Recapture Data from Dry Season 2002) |
BGSnailM-R02D231-328RECAP.txt | May, 2002 | Dry Season | May, 2002 |
| 16c | BG Snail M-R02D (Mark-Recapture Data from Dry Season 2002) |
BGSnailM-R02D330-422RECAP.txt | May, 2002 | Dry Season | May, 2002 |
| 17 | BG Snail M-R01D (Mark-Recapture Data from Wet Season 2002) |
BGSnailM-R02W37-130RECAP.txt | July, 2002 | Wet season | July, 2002 |
| 17a | BG Snail M-R01D (Mark-Recapture Data from Wet Season 2002) |
BGSnailM-R02W132-229RECAP.txt | July, 2002 | Wet season | July, 2002 |
| 17b | BG Snail M-R01D (Mark-Recapture Data from Wet Season 2002) |
BGSnailM-R02W231-328RECAP.txt | July, 2002 | Wet season | July, 2002 |
| 17c | BG Snail M-R01D (Mark-Recapture Data from Wet Season 2002) |
BGSnailM-R02W330-422RECAP.txt | July, 2002 | Wet season | July, 2002 |
| 18 |
BG Snail M-R95W |
BGSnailM-R95W132-229TOTALS.txt | June, 1995 | Wet season | June, 1995 |
| 18a | BG Snail M-R95W (Mark-Recapture Totals from Wet Season 1995) |
BGSnailM-R95W231-1928TOTALS.txt | June, 1995 | Wet season | June, 1995 |
| 18b | BG Snail M-R95W (Mark-Recapture Totals from Wet Season 1995) |
BGSnailM-R95W330-422TOTALS.txt | June, 1995 | Wet season | June, 1995 |
| 18c | BG Snail M-R95W (Mark-Recapture Totals from Wet Season 1995) |
BGSnailM-R95W37-130TOTALS.txt | June, 1995 | Wet season | June, 1995 |
| 19 |
BG Snail M-R96D |
BGSnailM-R96D132-229TOTALS.txt | March, 1996 | Dry season | March, 1996 |
| 19a | BG Snail M-R96D (Mark-Recapture Totals from Dry Season 1996) |
BGSnailM-R96D231-328TOTALS.txt | March, 1996 | Dry season | March, 1996 |
| 19b | BG Snail M-R96D (Mark-Recapture Totals from Dry Season 1996) |
BGSnailM-R96D330-422TOTALS.txt | March, 1996 | Dry season | March, 1996 |
| 19c | BG Snail M-R96D (Mark-Recapture Totals from Dry Season 1996) |
BGSnailM-R96D37-130TOTALS.txt | March, 1996 | Dry season | March, 1996 |
| 20 |
BG Snail M-R96W |
BGSnailM-R96W132-229TOTALS.txt | June, 1996 | Wet season | June, 1996 |
| 20a | BG Snail M-R96W (Mark-Recapture Totals from Wet Season 1996) |
BGSnailM-R96W231-328TOTALS.txt | June, 1996 | Wet season | June, 1996 |
| 20b | BG Snail M-R96W (Mark-Recapture Totals from Wet Season 1996) |
BGSnailM-R96W330-422TOTALS.txt | June, 1996 | Wet season | June, 1996 |
| 20c | BG Snail M-R96W (Mark-Recapture Totals from Wet Season 1996) |
BGSnailM-R96W37-130TOTALS.txt | June, 1996 | Wet season | June, 1996 |
| 21 |
BG Snail M-R97D |
BGSnailM-R97D132-229TOTALS.txt | March, 1997 | Dry season | March, 1997 |
| 21a | BG Snail M-R97D (Mark-Recapture Totals from Dry Season 1997) |
BGSnailM-R97D231-328TOTALS.txt | March, 1997 | Dry season | March, 1997 |
| 21b | BG Snail M-R97D (Mark-Recapture Totals from Dry Season 1997) |
BGSnailM-R97D330-422TOTALS.txt | March, 1997 | Dry season | March, 1997 |
| 21c | BG Snail M-R97D (Mark-Recapture Totals from Dry Season 1997) |
BGSnailM-R97D37-130TOTALS.txt | March, 1997 | Dry season | March, 1997 |
| 22 |
BG Snail M-R97W |
BGSnailM-R97W132-229TOTALS.txt | June, 1997 | Wet season | June, 1997 |
| 22a | BG Snail M-R97W (Mark-Recapture Totals from Wet Season 1997) |
BGSnailM-R97W231-328TOTALS.txt | June, 1997 | Wet season | June, 1997 |
| 22b | BG Snail M-R97W (Mark-Recapture Totals from Wet Season 1997) |
BGSnailM-R97W330-422TOTALS.txt | June, 1997 | Wet season | June, 1997 |
| 22c | BG Snail M-R97W (Mark-Recapture Totals from Wet Season 1997) |
BGSnailM-R97W37-130TOTALS.txt | June, 1997 | Wet season | June, 1997 |
| 23 |
BG Snail M-R98D |
BGSnailM-R98D132-229TOTALS.txt | March, 1998 | Dry season | March, 1998 |
| 23a | BG Snail M-R98D (Mark-Recapture Totals from Dry Season 1998) |
BGSnailM-R98D231-328TOTALS.txt | March, 1998 | Dry season | March, 1998 |
| 23b | BG Snail M-R98D (Mark-Recapture Totals from Dry Season 1998) |
BGSnailM-R98D330-422TOTALS.txt | March, 1998 | Dry season | March, 1998 |
| 23c | BG Snail M-R98D (Mark-Recapture Totals from Dry Season 1998) |
BGSnailM-R98D37-130TOTALS.txt | March, 1998 | Dry season | March, 1998 |
| 24 |
BG Snail M-R98W |
BGSnailM-R98W132-229TOTALS.txt | June, 1998 | Wet season | June, 1998 |
| 24a | BG Snail M-R98W (Mark-Recapture Totals from Wet Season 1998) |
BGSnailM-R98W231-328TOTALS.txt | June, 1998 | Wet season | June, 1998 |
| 24b | BG Snail M-R98W (Mark-Recapture Totals from Wet Season 1998) |
BGSnailM-R98W330-422TOTALS.txt | June, 1998 | Wet season | June, 1998 |
| 24c | BG Snail M-R98W (Mark-Recapture Totals from Wet Season 1998) |
BGSnailM-R98W37-130TOTALS.txt | June, 1998 | Wet season | June, 1998 |
| 25 |
BG Snail M-R99D |
BGSnailM-R99D132-229TOTALS.txt | March, 1999 | Dry season | March, 1999 |
| 25a |
BG Snail M-R99D |
BGSnailM-R99D231-328TOTALS.txt | March, 1999 | Dry season | March, 1999 |
| 25b | BG Snail M-R99D (Mark-Recapture Totals from Dry Season 1999) |
BGSnailM-R99D330-422TOTALS.txt | March, 1999 | Dry season | March, 1999 |
| 25c | BG Snail M-R99D (Mark-Recapture Totals from Dry Season 1999) |
BGSnailM-R99D37-130TOTALS.txt | March, 1999 | Dry season | March, 1999 |
| 26 | BG Snail M-R99W (Mark-Recapture Totals from Wet Season 1999) |
BGSnailM-R99W132-229TOTALS.txt | June, 1998 | Wet season | June, 1998 |
| 26a | BG Snail M-R99W (Mark-Recapture Totals from Wet Season 1999) |
BGSnailM-R99W231-328TOTALS.txt | June, 1998 | Wet season | June, 1998 |
| 26b | BG Snail M-R99W (Mark-Recapture Totals from Wet Season 1999) |
BGSnailM-R99W330-422TOTALS.txt | June, 1998 | Wet season | June, 1998 |
| 26c | BG Snail M-R99W (Mark-Recapture Totals from Wet Season 1999) |
BGSnailM-R99W37-130TOTALS.txt | June, 1998 | Wet season | June, 1998 |
| 27 |
BG Snail M-R00D |
BGSnailM-R00D132-229TOTALS.txt | March, 2000 | Dry season | March, 2000 |
| 27a | BG Snail M-R00D (Mark-Recapture Totals from Dry Season 2000) |
BGSnailM-R00D231-328TOTALS.txt | March, 2000 | Dry season | March, 2000 |
| 27b | BG Snail M-R00D (Mark-Recapture Totals from Dry Season 2000) |
BGSnailM-R00D330-422TOTALS.txt | March, 2000 | Dry season | March, 2000 |
| 27c | BG Snail M-R00D (Mark-Recapture Totals from Dry Season 2000) |
BGSnailM-R00D37-130TOTALS.txt | March, 2000 | Dry season | March, 2000 |
| 28 |
BG Snail M-R00W |
BGSnailM-R00W132-229TOTALS.txt | July, 2000 | Wet season | July, 2000 |
| 28a | BG Snail M-R00W (Mark-Recapture Totals from Wet Season 2000) |
BGSnailM-R00W231-328TOTALS.txt | July, 2000 | Wet season | July, 2000 |
| 28b | BG Snail M-R00W (Mark-Recapture Totals from Wet Season 2000) |
BGSnailM-R00W330-422TOTALS.txt | July, 2000 | Wet season | July, 2000 |
| 28c | BG Snail M-R00W (Mark-Recapture Totals from Wet Season 2000) |
BGSnailM-R00W37-130TOTALS.txt | July, 2000 | Wet season | July, 2000 |
| 29 | BG Snail M-R01D (Mark-Recapture Totals from Dry Season 2001) |
BGSnailM-R01D37-130TOTALS.txt | March, 2001 | Dry season | March, 2001 |
| 29a | BG Snail M-R01D (Mark-Recapture Totals from Dry Season 2001) |
BGSnailM-R01D132-229TOTALS.txt | March, 2001 | Dry season | March, 2001 |
| 29b | BG Snail M-R01D (Mark-Recapture Totals from Dry Season 2001) |
BGSnailM-R01D231-328TOTALS.txt | March, 2001 | Dry season | March, 2001 |
| 29c | BG Snail M-R01D (Mark-Recapture Totals from Dry Season 2001) |
BGSnailM-R01D330-422TOTALS.txt | March, 2001 | Dry season | March, 2001 |
| 30 | BG Snail M-R01D (Mark-Recapture Totals from Wet Season 2001) |
BGSnailM-R01W37-130TOTALS.txt | July, 2001 | Wet season | July, 2001 |
| 30a | BG Snail M-R01D (Mark-Recapture Totals from Wet Season 2001) |
BGSnailM-R01W132-229TOTALS.txt | July, 2001 | Wet season | July, 2001 |
| 30b | BG Snail M-R01D (Mark-Recapture Totals from Wet Season 2001) |
BGSnailM-R01W231-328TOTALS.txt | July, 2001 | Wet season | July, 2001 |
| 30c | BG Snail M-R01D (Mark-Recapture Totals from Wet Season 2001) |
BGSnailM-R01W330-422TOTALS.txt | July, 2001 | Wet season | July, 2001 |
| 31 | BG Snail M-R02D (Mark-Recapture Totals from Dry Season 2002) |
BGSnailM-R02D37-130TOTALS.txt | May, 2002 | Dry Season | May, 2002 |
| 31a | BG Snail M-R02D (Mark-Recapture Totals from Dry Season 2002) |
BGSnailM-R02D132-229TOTALS.txt | May, 2002 | Dry Season | May, 2002 |
| 31b | BG Snail M-R02D (Mark-Recapture Totals from Dry Season 2002) |
BGSnailM-R02D231-328TOTALS.txt | May, 2002 | Dry Season | May, 2002 |
| 31c | BG Snail M-R02D (Mark-Recapture Totals from Dry Season 2002) |
BGSnailM-R02D330-422TOTALS.txt | May, 2002 | Dry Season | May, 2002 |
| 32 | BG Snail M-R02D (Mark-Recapture Totals from Wet Season 2002) |
BGSnailM-R02W37-130TOTALS.txt | July, 2002 | Wet season | July, 2002 |
| 32a | BG Snail M-R02D (Mark-Recapture Totals from Wet Season 2002) |
BGSnailM-R02W132-229TOTALS.txt | July, 2002 | Wet season | July, 2002 |
| 32b | BG Snail M-R02D (Mark-Recapture Totals from Wet Season 2002) |
BGSnailM-R02W231-328TOTALS.txt | July, 2002 | Wet season | July, 2002 |
| 32c | BG Snail M-R02D (Mark-Recapture Totals from Wet Season 2002) |
BGSnailM-R02W330-422TOTALS.txt | July, 2002 | Wet season | July, 2002 |
| 33 | BG Snail M-R03D (Mark-Recapture Data from Dry Season 2003) |
BGSnailM-R03D37-130RECAP.txt | May, 2003 | Dry Season | May, 2003 |
| 33a | BG Snail M-R03D (Mark-Recapture Data from Dry Season 2003) |
BGSnailM-R03D132-229RECAP.txt | May, 2003 | Dry Season | May, 2003 |
| 33b | BG Snail M-R03D (Mark-Recapture Data from Dry Season 2003) |
BGSnailM-R03D231-328RECAP.txt | May, 2003 | Dry Season | May, 2003 |
| 33c | BG Snail M-R03D (Mark-Recapture Data from Dry Season 2003) |
BGSnailM-R03D330-422RECAP.txt | May, 2003 | Dry Season | May, 2003 |
| 34 | BG Snail M-R03D (Mark-Recapture Data from Wet Season 2003) |
BGSnailM-R03W37-130RECAP.txt | July, 2003 | Wet season | July, 2003 |
| 34a | BG Snail M-R03D (Mark-Recapture Data from Wet Season 2003) |
BGSnailM-R03W132-229RECAP.txt | July, 2003 | Wet season | July, 2003 |
| 34b | BG Snail M-R03D (Mark-Recapture Data from Wet Season 2003) |
BGSnailM-R03W231-328RECAP.txt | July, 2003 | Wet season | July, 2003 |
| 34c | BG Snail M-R03D (Mark-Recapture Data from Wet Season 2003) |
BGSnailM-R03W330-422RECAP.txt | July, 2003 | Wet season | July, 2003 |
| 35 | BG Snail M-R03D (Mark-Recapture Totals from Dry Season 2003) |
BGSnailM-R03D37-130TOTALS.txt | May, 2003 | Dry Season | May, 2003 |
| 35a | BG Snail M-R03D (Mark-Recapture Totals from Dry Season 2003) |
BGSnailM-R03D132-229TOTALS.txt | May, 2003 | Dry Season | May, 2003 |
| 35b | BG Snail M-R03D (Mark-Recapture Totals from Dry Season 2003) |
BGSnailM-R03D231-328TOTALS.txt | May, 2003 | Dry Season | May, 2003 |
| 35c | BG Snail M-R03D (Mark-Recapture Totals from Dry Season 2003) |
BGSnailM-R03D330-422TOTALS.txt | May, 2003 | Dry Season | May, 2003 |
| 36 | BG Snail M-R03D (Mark-Recapture Totals from Wet Season 2003) |
BGSnailM-R03W37-130TOTALS.txt | July, 2003 | Wet season | July, 2003 |
| 36a | BG Snail M-R03D (Mark-Recapture Totals from Wet Season 2003) |
BGSnailM-R03W132-229TOTALS.txt | July, 2003 | Wet season | July, 2003 |
| 36b | BG Snail M-R03D (Mark-Recapture Totals from Wet Season 2003) |
BGSnailM-R03W231-328TOTALS.txt | July, 2003 | Wet season | July, 2003 |
| 36c | BG Snail M-R03D (Mark-Recapture Totals from Wet Season 2003) |
BGSnailM-R03W330-422TOTALS.txt | July, 2003 | Wet season | July, 2003 |
RESEARCH LOCATION: Luquillo Forest Dynamics Plots, El Verde
INVESTIGATORS:
PRINCIPAL INVESTIGATORS E-MAIL address
Christopher P. Bloch |
OTHER RESEARCHERS E-MAIL address
Michael Willig |
|
| Javier Alvarez | javier_alvariz@mail.fws.gov |
| John Cary | |
| Stephen Cox | stephen.cox@ttu.edu |
| Michelle Wolf | mwolf@montana.edu |
| Donald Yee | dayee@ilstu.edu |
CONTACT PERSONS E-MAIL address Phone Number (Include area code)
|
C. Bloch |
(508)531-2087 |
SOURCE OF FUNDING (SPONSOR): NSF (Luquillo LTER), U.S. Dept. of Energy (Oak Ridge Associated Universities)
DATA SET ABSTRACT: The data set consists of 13 files: (1) abundance data for the walking stick, Lamponius portoricensis, (2) estimates of abundance (Minimum Number Known Alive) for 17 species of terrestrial snails, and (3) 16 files containing data on size and mark-recapture estimates of population size for the snails Caracolus caracolla and Nenia tridens from Wet Season 1995 to Wet Season 2000. Note: MNKA estimates are not always identical to the number of individuals indicated in the Mark-Recapture data, because some individuals (e.g., those that were lost before being marked) had to be excluded from calculations for Mark-Recapture estimates of abundance. Each of the 16 files contain the data of one of four groups of plots on the Luquillo Forest Dynamics Plot at El Verde: 37-130, 132-229, 231-328, or 330-422, which is identified in the file name along with the years the samples were taken.
In October 2004, the 16 files containing data on size and mark-recapture estimates of population size for the snails Caracolus caracolla and Nenia tridens were separated into two files. One contains the recapture data and another contains the total snails sampled and recaptured for each of these two species.
DATA SET METHODS: One hundred sixty points were selected on the Luquillo Forest Dynamics Plot at El Verde. Circular quadrats (r = 3 m) were established at each point. From June 1991 to present, 40 points were sampled four times seasonally for the presence of terrestrial snails and walking sticks, with the following exceptions: (1) in 1995, 1996, and 1997, the wet season surveys comprised 160 points, (2) in 1998, the wet season survey comprised 100 points, (3) walking stick surveys began in the wet season of 1992, (4) walking sticks were sampled only twice per season until 1994, (5) snails were sampled only once in Dry season 1991, twice in Wet season 1991, Wet and Dry seasons 1992, and Wet and Dry seasons of 1993, and three times in Wet and Dry seasons 1994. Sampling at each point 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 and walking sticks. Walking sticks were identified to sex whenever possible, with immature or unidentifiable individuals being classified as "juveniles." Exceptions to this classification system are Dry season 1993, Dry season 1996, and Wet season 1996, when no walking sticks were classified to sex. In these cases, all walking sticks are listed in the data file as "juveniles." Beginning in 1995, individuals of C. caracolla and N. tridens were marked with a numbered plastic dot affixed to the shell and measured to the nearest 0.1 mm using dial calipers. All surveys occurred between 19:30 and 03:00 hours to coincide with peak snail activity. Population densities were estimated as Minimum Number Known Alive (MNKA), the maximum number of individuals of each species recorded for a site in each season, and from Wet Season 1995 onward, using the Lincoln-Peterson, Modified Lincoln-Peterson, and Schnabel estimators.
REFERENCES:
Seber, G. A. F. 1982. The estimation of animal abundance and related parameters.
Second ed. MacMillan Publishing Co., Inc., New York, New York, USA.
CROSS-REFERENCES (other data sets related to this one): LTERDBAS
41: Habitat selection/Caracolus caracolla and other snails LTERDBAS
42: Grid Habitat Data, Bisley 1994,1999
LTERDBAS 43: Grid Invertebrate
Data Bisley 1989-1999
SAMPLE LOCATION:
STORAGE SITES (of data files):
INVESTIGATOR'S ASSIGNED KEYWORDS: snails, walking sticks, population density, disturbance, Hurricane Hugo
LEF LTER OFFICIAL KEYWORDS (See table): LFDP, TABONUCO, DISTURBANCE, HURRICANE, TERRESTRIAL, PEER REVIEW JOURNAL
PUBLICATIONS:
Secrest, M.F. 1995. The impact of Hurricane Hugo on two common tree snails in the Luquillo Experimental Forest of Puerto Rico: a long-term study. M.S. Thesis, Texas Tech University, Lubbock, Texas.
Secrest, M.F., M.R. Willig, and L.L. Peppers. 1996. The legacy of disturbance on habitat associations of terrestrial snails in the Luquillo Experimental Forest, Puerto Rico. Biotropica 28:502-514.
Willig, M.R., M.F. Secrest, J.F. Cary, S.B. Cox, G.R. Camilo, and M.R. Gannon. 1998. Long-term monitoring of snails in the Luquillo Experimental Forest of Puerto Rico: heterogeneity, scale, disturbance, and recovery. In F. Dallmeier and J. Comisky, editors. Forest Biodiversity in North, Central, and South America and the Caribbean: Research and Monitoring. UNESCO and The Parthenon Press, Carnforth, Lancashire, UK. Pp. 293-322.
Bloch, C.P. 2004. Long-term responses of snail populations and communities to disturbance in the Luquillo Experimental Forest, Puerto Rico. Ph.D. Dissertation. Texas Tech University, Lubbock, TX.
Willig, M.R., C.P. Bloch, N. Brokaw, C. Higgins, J. Thompson, and C. Zimmermann. 2007. Cross-scale responses of biodiversity to hurricane and anthropogenic disturbance in a tropical forest. Ecosystems 10: 834-838.
Bloch, C.P., C.L. Higgins, and M.R. Willig. 2007. Effects of large-scale disturbance on community structure:
temporal trends in nestedness. Oikos 116: 396-406.
Bloch, C.P., and M.R. Willig. 2006. Context-dependence of long-term responses of terrestrial gastropod
populations to large-scale disturbance. Journal of Tropical Ecology 22: 111-122.
DISSEMINATION: UNRESTRICTED
REASONS TO RESTRICT DATA IN THIS DATA SET BEYOND ITS TWO YEAR POLICY PERIOD*:
*WILL HAVE TO BE APPROVED BY LTER PRINCIPAL INVESTIGATORS: J. ZIMMERMAN, A. LUGO , D.J. LODGE
SITES DESCRIPTIONS:
Geographical positional system (GPS) Coordinates for each location:
|
location |
latitude |
longitude |
|
FILE NAME OR #ABOVE (all in which the variable appears) |
1, 3-34 | 1-34 | 2 | 1 | 1-34 | 1 |
|
ABBREVIATION (as it appears on the data file) |
YEAR | SEASON | YEAR-SEASON | RUN | POINT | DATE |
|
NAME OF VARIABLE |
Year | Season | Year and season | Run | Point | Date |
|
DEFINITION OF VARIABLE |
Year of survey (YYYY) |
Season when survey was made |
Year and season when survey was made (YYS where S = Season with D=Dry and W=Wet ) | Identifies which night of sampling
the data represent within a season |
Identifies the location on the LFDP (HRP) where sampling was conducted |
Date when survey was made (mm/dd/yyyy) |
|
UNIT |
N/A | N/A | N/A | N/A | N/A | N/A |
|
PRECISION |
N/A | N/A | N/A | N/A | N/A | |
|
RANGE OR LIST OF VALUES |
1992... | {W= Wet, D=Dry) | 92W, 92D, ..., | 1 - 4 | ||
|
DATA TYPE |
integer | alphanumeric | alphanumeric | integer | integer | datetime |
|
MISSING DATA CODES |
none | none | none | none | none | none |
VARIABLES (ATTRIBUTES):
FILE NAME OR #ABOVE (all in which the variable appears) |
1 | 1 | 1 | 1 | 1 |
ABBREVIATION (as it appears on the data file) |
AULALT | ALCALT | ALCSTR | CARCAR | CARMAR |
NAME OF VARIABLE |
Population size of captured Austroselenites alticola | Population size of captured Alcadia alta | Population size of captured Alcadia striata | Population size of captured Caracolus caracolla | Population size of captured Caracolus marginella |
DEFINITION OF VARIABLE |
Population size of captured Austroselenites alticola at each point | Population size of captured Alcadia alta at each point | Population size of captured Alcadia striata at each point | Population size of captured Caracolus caracolla at each point | Population size of captured Caracolus marginella at each point |
UNIT |
|||||
PRECISION |
|||||
RANGE OR LIST OF VALUES |
|||||
DATA TYPE |
Integer |
Integer | Integer | Integer |
Integer |
MISSING DATA CODES |
none | none | none | none | none |
VARIABLES (ATTRIBUTES):
FILE NAME OR #ABOVE (all in which the variable appears) |
1 | 1 | 1 | 1 | 1 | 1 |
ABBREVIATION (as it appears on the data file) |
CEPMUS | CEPSQU | GAENIG | LAMGRA | MEGCRO | NENTRI |
NAME OF VARIABLE |
Population size of captured Cepolis musicola | Population size of captured Cepolis squamosa | Population size of captured Gaeotis nigrolineata | Population size of captured Lamellaxis gracilis | Population size of captured Megalomastoma croceum | Population size of captured Nenia tridens |
DEFINITION OF VARIABLE |
Population size of capturedCepolis musicola at each point | Population size of captured Cepolis squamosa at each point | Population size of captured Gaeotis nigrolineata at each point | Population size of captured Lamellaxis gracilis at each point | Population size of captured Megalomastoma croceum at each point | Population size of captured Nenia tridens at each point |
UNIT |
||||||
PRECISION |
||||||
RANGE OR LIST OF VALUES |
||||||
DATA TYPE |
Integer | Integer | Integer | Integer | Integer | Integer |
MISSING DATA CODES |
none | none | none | none | none | none |
VARIABLES (ATTRIBUTES):
FILE NAME OR #ABOVE (all in which the variable appears) |
1 | 1 | 1 | 1 | 1 |
ABBREVIATION (as it appears on the data file) |
OLEGRA | OLEPLA | OBETER | POLACU | PLAPOR |
NAME OF VARIABLE |
Population size of captured Oleacina glabra | Population size of captured Oleacina playa | Population size of captured Obeliscus terebraster | Population size of captured Polydontes acutangul | Population size of captured Platysuccinea portoricensis |
DEFINITION OF VARIABLE |
Population size of captured Oleacina glabra at each point | Population size of captured Oleacina playa at each point | Population size of captured Obeliscus terebraster at each point | Population size of captured Polydontes acutangula at each point | Population size of captured Platysuccinea portoricensis at each point |
UNIT |
|||||
PRECISION |
|||||
RANGE OR LIST OF VALUES |
|||||
DATA TYPE |
Integer | Integer | Integer | Integer | Integer |
MISSING DATA CODES |
none | none | none | none | none |
VARIABLES (ATTRIBUTES):
FILE NAME OR #ABOVE (all in which the variable appears) |
1 | 1 | 1 | 1 |
ABBREVIATION (as it appears on the data file) |
SUBOCT | VAGOCC | UNKNOWN | TOTABU |
NAME OF VARIABLE |
Population size of captured Subulina octana | Population size of captured Vaginulus occidentalisf | Population size of snails of UNKNOWN species | Total abundance (MNKA) |
DEFINITION OF VARIABLE |
Population size of captured Subulina octana at each point | Population size of captured Vaginulus occidentalis at each point | Population size of captured snails of unknown species at each point | Total abundance (MNKA) of all snails |
UNIT |
||||
PRECISION |
||||
RANGE OR LIST OF VALUES |
||||
DATA TYPE |
Integer | Integer | Integer | Integer |
MISSING DATA CODES |
none | none | none | none |
VARIABLES (ATTRIBUTES):
FILE NAME OR #ABOVE (all in which the variable appears) |
2 | 2 | 2 | 2 | 2 |
ABBREVIATION (as it appears on the data file) |
JUVENILERUN1 | JUVENILERUN2 | JUVENILERUN3 | JUVENILERUN4 | MALERUN1 |
NAME OF VARIABLE |
Juvenile Run 1 | Juvenile Run 2 | Juvenile Run 3 | Juvenile Run 4 | Male Run 1 |
DEFINITION OF VARIABLE |
Number of juvenile L. portoricensis encountered the first time the point was surveyed. | Number of juvenile L. portoricensis encountered the second time the point was surveyed. | Number of juvenile L. portoricensis encountered the third time the point was surveyed. | Number of juvenile L. portoricensis encountered the fourth time the point was surveyed. | Number of adult male L. portoricensis encountered the first time the point was surveyed. |
UNIT |
N/A | N/A | N/A | N/A | N/A |
PRECISION |
N/A | N/A | N/A | N/A | N/A |
RANGE OR LIST OF VALUES |
|||||
DATA TYPE |
Integer |
Integer |
Integer |
Integer |
Integer |
MISSING DATA CODES |
Blank | Blank | Blank | Blank | Blank |
VARIABLES (ATTRIBUTES):
FILE NAME OR #ABOVE (all in which the variable appears) |
2 | 2 | 2 | 2 | 2 |
ABBREVIATION (as it appears on the data file) |
MALERUN2 | MALERUN3 | MALERUN4 | FEMALERUN1 | FEMALERUN2 |
NAME OF VARIABLE |
Male Run 2 | Male Run 3 | Male Run 4 | Female Run 1 | Female Run 2 |
DEFINITION OF VARIABLE |
Number of adult male L. portoricensis encountered the second time the point was surveyed. | Number of adult male L. portoricensis encountered the third time the point was surveyed. | Number of adult male L. portoricensis encountered the fourth time the point was surveyed. | Number of adult female L. portoricensisencountered the first time the point was surveyed. | Number of adult female L. portoricensisencountered the second time the point was surveyed. |
UNIT |
N/A | N/A | N/A | N/A | N/A |
PRECISION |
N/A | N/A | N/A | N/A | N/A |
RANGE OR LIST OF VALUES |
|||||
DATA TYPE |
Integer | Integer | Integer | Integer | Integer |
MISSING DATA CODES |
Blank | Blank | Blank | Blank | Blank |
VARIABLES (ATTRIBUTES):
|
FILE NAME OR #ABOVE (all in which the variable appears) |
2 | 2 | 2 | 2 | 2 |
|
ABBREVIATION (as it appears on the data file) |
FEMALERUN3 | FEMALERUN4 | TOTALJUVENILE | TOTALMALE | TOTALFEMALE |
|
NAME OF VARIABLE |
Female Run 3 | Female Run 4 | Total Juvenile | Total Male | Total Female |
|
DEFINITION OF VARIABLE |
Number of adult female L. portoricensis encountered the third time the point was surveyed. | Number of adult female L. portoricensis encountered the fourth time the point was surveyed. | Total number of adult juvenile L. portoricensis encountered throughout the season. | Total number of adult male L. portoricensis encountered throughout the season. | Total number of adult female L. portoricensis encountered throughout the season. |
|
UNIT |
N/A | N/A | N/A | N/A | N/A |
|
PRECISION |
N/A | N/A | N/A | N/A | N/A |
|
RANGE OR LIST OF VALUES |
|||||
|
DATA TYPE |
Integer | Integer | Integer | Integer | Integer |
|
MISSING DATA CODES |
Blank | Blank | none | none | none |
VARIABLES (ATTRIBUTES):
FILE NAME OR #ABOVE (all in which the variable appears) |
2 | 2 | 2 | 2 | 2 |
ABBREVIATION (as it appears on the data file) |
TOTALADULT | TOTALALL | MNKAJUVENILE | MNKAADULT | MNKATOTAL |
NAME OF VARIABLE |
Total Adult | Total Total | Minimum Number of Juvenile known alive | Minimum Number of Adult known alive | Minimum Number of Total known alive |
DEFINITION OF VARIABLE |
Sum of Total Male and Total Female L. portoricensis encountered throughout the season. | Total number of L. portoricensis encountered throughout the season. | Maximum number of juvenile L. portoricensis individuals found at a particular point during the season of interest. |
Maximum number of adult L. portoricensisindividuals found at a particular point during the season of interest. | Minimum Number of total L. portoricensisindividuals found at a particular point during the season of interest. |
UNIT |
N/A | N/A | N/A | N/A | N/A |
PRECISION |
N/A | N/A | N/A | N/A | N/A |
RANGE OR LIST OF VALUES |
|||||
DATA TYPE |
Integer |
Integer | Integer | Integer |
Integer |
MISSING DATA CODES |
none |
none | none | none |
none |
VARIABLES (ATTRIBUTES):
|
FILE NAME OR #ABOVE (all in which the variable appears) |
3-17, 33-34 |
3-17, 33-34 | 3-17, 33-34 |
3-17, 33-34 | 3-17, 33-34 |
|
ABBREVIATION (as it appears on the data file) |
RECNUM | CCCOLORANDNO | CCRUN1_MM, | CCRUN2_MM | CCRUN3_MM |
|
NAME OF VARIABLE |
Assigned record number | Color and Number identification of Caracolus caracolla | Greatest length of shell of a Caracolus caracolla in survey 1 | Greatest length of shell of a Caracolus caracolla in survey 2 | Greatest length of shell of a Caracolus caracolla in survey 3 |
|
DEFINITION OF VARIABLE |
Number assigned to record for data management purposes | Number and color of marks placed on shells of a Caracolus caracolla individual for identification | Greatest length of shell of a Caracolus caracolla found in the first sampling period within a season | Greatest length of shell of a Caracolus caracolla found in the second sampling period within a season | Greatest length of shell of a Caracolus caracolla found in the third sampling period within a season |
|
UNIT |
N/A | mm | mm | mm | |
|
PRECISION |
|||||
|
RANGE OR LIST OF VALUES |
1,... | R = red, B = blue, W = white, etc.) | |||
|
DATA TYPE |
Integer | Alphanumeric | Decimal | Decimal | Decimal |
|
MISSING DATA CODES |
none | Empty cells in-dicate that an individual was not captured | Empty cells in-dicate that an individual was not captured | Empty cells in-dicate that an individual was not captured | Empty cells in-dicate that an individual was not captured |
VARIABLES (ATTRIBUTES):
FILE NAME OR #ABOVE (all in which the variable appears) |
3-17, 33-34 |
3-17, 33-34 | 3-17, 33-34 |
3-17, 33-34 | 3-17, 33-34 |
ABBREVIATION (as it appears on the data file) |
CCRUN4_MM | CCRECAP2 |
CCRECAP3 |
CCRECAP4 |
NTRECAP2 |
NAME OF VARIABLE |
Greatest length of shell of a Caracolus caracolla in survey 4 | Recapture event of Caracolus caracolla in survey 2 | Recapture event of Caracolus caracolla in survey 3 | Recapture event of Caracolus caracolla in survey 4 | Recapture event of Nenia tridens in survey 2 |
DEFINITION OF VARIABLE |
Greatest length of shell of a Caracolus caracolla found in the fourth sampling period within a season | Whether any individual of Caracolus caracolla captured in survey 2 had been captured previously in the same season | Whether any individual of Caracolus caracollacaptured in survey 3 had been captured previously in the same season | Whether any individual of Caracolus caracolla captured in survey 4 had been captured previously in the same season | Whether any individual of Nenia tridens captured in survey 2 had been captured previously in the same season |
UNIT |
mm | ||||
PRECISION |
|||||
RANGE OR LIST OF VALUES |
0 = no recapture, |
0 = no recapture, 1 = recapture occured |
0 = no recapture, 1 = recapture occured |
0 = no recapture, 1 = recapture occured |
|
DATA TYPE |
Decimal | Integer | Integer | Integer | Integer |
MISSING DATA CODES |
Empty cells in-dicate that an individual was not captured | none | none | none | none |
VARIABLES (ATTRIBUTES):
FILE NAME OR #ABOVE (all in which the variable appears) |
3-17, 33-34 |
3-17, 33-34 | 3-17, 33-34 |
3-17, 33-34 | 3-17, 33-34 |
ABBREVIATION (as it appears on the data file) |
NTRECAP3 |
NTRECAP4RUN |
NTCOLORANDNO | NTRUN1_MM, | NTRUN2_MM, |
NAME OF VARIABLE |
Recapture event of Nenia tridens in survey 3 | Recapture event of Nenia tridens in survey 4 | Color and Number identification of Nenia tridens | Greatest length of shell of Nenia tridens | Greatest length of shell of a Nenia tridens in survey 2 |
DEFINITION OF VARIABLE |
Whether any individual of Nenia tridens captured in survey 3 had been captured previously in the same season | Whether any individual of Nenia tridens captured in survey 4 had been captured previously in the same season | Number and color of marks placed on shells of a Nenia tridens individual for identification | Greatest length of shell in each sampling period within a season | Greatest length of shell of a Nenia tridensfound in the second sampling period within a season |
UNIT |
mm | mm | |||
PRECISION |
|||||
RANGE OR LIST OF VALUES |
0 = no recapture, 1 = recapture occured |
0 = no recapture, 1 = recapture occured |
R = red, B = blue, W = white, etc.) | ||
DATA TYPE |
Integer | Integer | Alphanumeric | Decimal | Decimal |
MISSING DATA CODES |
none | none | Empty cells in-dicate that an individual was not captured | Empty cells in-dicate that an individual was not captured | Empty cells in-dicate that an individual was not captured |
VARIABLES (ATTRIBUTES):
FILE NAME OR #ABOVE (all in which the variable appears) |
3-17, 33-34 |
3-17, 33-34 | 18-32,35-36 |
18-32,35-36 | 18-32,35-36 |
ABBREVIATION (as it appears on the data file) |
NTRUN3_MM, | NTRUN4_MM | TOTAL | SPECIESCODE | TOTALTYPE |
NAME OF VARIABLE |
Greatest length of shell of a Nenia tridens in survey 3 | Greatest length of shell of a Nenia tridens in survey 4 | Total number of individuals captured | Species name code | Run or recapture event |
DEFINITION OF VARIABLE |
Greatest length of shell of a Nenia tridens found in the third sampling period within a season | Greatest length of shell of a Nenia tridens found in the fourth sampling period within a season | Total number of individuals captured or recapture at a site within a season. For recapture events this field is left blank for the first Run | Two letter species code of the species studied | Type of activity for which total has been either calculated for a specific point in a sampling period within a season |
UNIT |
mm | ||||
PRECISION |
|||||
RANGE OR LIST OF VALUES |
NT = Nenia tridens,CC = Caracolus caracolla | run = sampling period , recapture = recapture event | |||
DATA TYPE |
Decimal | Integer | Alphabetic | ||
MISSING DATA CODES |
Empty cells in-dicate that an individual was not captured | none | none |
COMPUTATIONAL METHODS:
| VARIABLE NAME | FORMULA OR DESCRIPTION |
| Minimum Number Known Alive | Maximum number of individuals found at a particular point during the season of interest. |
| Lincoln-Peterson Estimate of Population Size | N=M/(m/n), where N=population size, n=total individuals captured in a sample, m=recaptured individuals in that sample, and M=total number of marked individuals in the population |
| Modified Lincoln-Peterson Estimate of Population Size | N=M/((m/n)-1), where n=total individuals in a sample +1, m=recaptured individuals in that sample +1, and M=total marked individuals in the population +1 |
| Schnabel Estimate of Population Size | N=sum of (M*n) for each time period/sum of m over all time periods, where N,M,m,n are defined as ifor the Lincoln-Peterson estimator. |
DATE OF LAST REVIEW:
January 24, 2008
DATE OF LAST ENTRY: 2003
STAGE OF DATA SET MANAGEMENT (dates):
RECEIVED SEP 29 2000
ENTERED:
FILED: Oct 4, 2000
ON-LINE: Oct 4, 2000
REVIEWED BY RESEARCHER
FILING MEDIA:
NAME OF DOCUMENTATION FILE: Lterdb107.Htm; Hrpinverts.Doc
NAME OF ON - LINE CATALOG: LTERDBAS
RECORD #: 107
DOCUMENT TYPE: magnetic media
PRIORITY TO BE ENTERED: N/A
Rev. date of this form: 8 June 2000