DATA SET IDENTIFIER: Canopy invertebrate responses to Hurricane Hugo at several El Verde plots- LUQINVERT

PROJECT TITLE: Canopy Arthropods (Canopy invertebrate responses to Hurricane Hugo)

PROJECT DESCRIPTION: We study the canopy invertebrate responses to Hurricane Hugo, tree species, and recovery time since 1991. Some of the results include:

• Hurricane disturbance affects invertebrate abundances significantly. Changes in functional organization are consistent with comparable studies of arthropod responses to canopy removal during harvest in temperate forests.
• Tree species also affected invertebrate abundances significantly, but invertabrate communities did not differ significantly between the three early successional and three later successional tree species.
• Leaf area missing, an indicator or herbivore effect on canopy processes, showed significant seasonal and annual trends, as well as differences among tree species and hurricane treatments.
• Herbivore abundances and leaf area missing were not related to concentrations of nitrogen, phosphorous, potassium, or calcium in the foliage.
• This study demonstrated that invertebrate community structure and herbivory are dynamic processes that reflect the influences of host species and variable environmental conditions.

LTER CORE AREAS: (Annotate all that apply)

LEF LTER 1 RESEARCH TOPIC: (Annotate all that apply)

Population recovery after disturbance

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	El Verde Canopy Arthropods data	EVArthropods1991-2007.txt	February 24, 1991	4 times in 1991; 3 times in 1992; 3 times in 1994; 2 times in 1995; 2 times in 1997; 2 times in 1998; 2 times in 1999; once in 2000; twice in 2001; once in 2002 and 2003; 2 times in 2004	July 17, 2007

RESEARCH LOCATION: Big Grid - grid points 5.5, 3.3 (Block 4), 8.3, 10.3 (Block 3), 7.6 (Block 6), 11.7, 11.11 (Block 5); Odum Trail - 10 and 50 m above MRCE plot (Block 2); Sonadora Trail - 10 and 40 m S and W of bridge (Block 1);

INVESTIGATORS:

PRINCIPAL INVESTIGATORS E-MAIL address

T.D. Schowalter

tschowalter@agcenter.lsu.edu

OTHER RESEARCHERS E-MAIL address

CONTACT PERSONS E-MAIL address Phone Number (Include area code)

T.D. Schowalter

tschowalter@agcenter.lsu.edu

225-578-1634

SOURCE OF FUNDING (SPONSOR): NSF LTER subcontract through UPR (until 2001 only- after that data has been voluntarily shared by the Investigator.)

DATA SET ABSTRACT: Five tree species in 1991, six during 1992-1995, were selected to represent early and late successional forests at El Verde. These trees were sampled in both gap and non-gap plots resulting from Hurricane Hugo.

DATA SET METHODS: A long-handled insect net with closeable plastic bag was used to collect foliage-bearing branches up to 10-12 m heights in gap and non-gap plots, within a 15 m radius around the points identified above. Bags were sealed until invertebrates could be sorted. Invertebrates were counted by phenotype; foliage was pressed, dried, weighed, and measured for leaf area missing as a result of herbivory.

REFERENCES:

CROSS-REFERENCES (other data sets related to this one):

SAMPLE LOCATION: Oregon State University, Entomology Dept.

STORAGE SITES: Oregon State University, Forest Science and Entomology Depts.; ITES Data Management File Cabinet DM-002, Drawer#1

INVESTIGATOR'S ASSIGNED KEYWORDS: Invertebrates, insects, arthropods, Lepidoptera, Homoptera, spiders, mites, Dacryodes, Manilkara, Sloanea, Cecropia, Casearia, Prestoea, Hurricane Hugo, disturbance

LEF LTER OFFICIAL KEYWORDS (See table): EL VERDE, LFDP (EV Big Grid), Q SONADORA, TABONUCO, DISTURBANCE, POPULATION DYNAMICS, INSECTS, PEER REVIEWED JOURNAL

PUBLICATIONS:

Schowalter, T.D. 1994. Invertebrate community structure and herbivory in a tropical rain forest canopy in Puerto Rico following Hurricane Hugo. Biotropica 26: 312-319. (Abstract)

Schowalter, T.D. 1995. Canopy invertebrate community response to disturbance and consequences of herbivory in temperate and tropical forests. Selbyana 16: 41-48. (Abstract)

Schowalter, T.D. 2006. Insect Ecology: an Ecosystem Approach, 2nd Ed. Elsevier/Academic, San Diego , CA .

Schowalter, T.D. and L.M. Ganio. 2003.  Diel, seasonal and disturbance-induced variation in invertebrate assemblages.  pp. 315-328, In: Y. Basset, V. Navotny, S. Miller and R. Kitching, eds., Arthropods of Tropical Forests. Cambridge University Press, Cambridge , UK .

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: Big Grid (Luquillo Forest Dynamics Plots)- grid points 5.5, 3.3 (Block 4), 8.3, 10.3 (Block 3), 7.6 (Block 6), 11.7, 11.11 (Block 5); Odum Trail - 10 and 50 m above MRCE plot (Block 2); Sonadora Trail - 10 and 40 m S and W of bridge (Block 1);

Geographical positional system (GPS) Coordinates for each location:

Location	Longitude	Latitude
Sonadora Trail (10 and 40 m S and W of bridge) undisturbed area (>75% canopy cover) used by Schowalter to observe insects	65 49.016 W	18 19.270 N
Odum Trail (10 and 50 m above MRCE plot) gap area (<25% canopy cover) used by Schowalter to observe insects	65 49.076 W	18 19.274 N
Odum Trail (10 and 50 m above MRCE plot) undisturbed area (>75% canopy cover) used by Schowalter to observe insects	65 48.963 W	18 19.294 N
LFDP (grid points 11.7, 11.11)  undisturbed area (>75% canopy cover) used by Schowalter to observe insects	65 48.914 W	18 19.386 N
LFDP (grid point  grid point 7.6)  undisturbed area (>75% canopy cover) used by Schowalter to observe insects	65 48.996	18 19.409

VARIABLES (ATTRIBUTES):

VARIABLES (ATTRIBUTES):

FILE NAME OR #ABOVE(all in which the variable appears)	1	1	1	1	1	1	1	1
ABBREVIATION(as it appears on the data file)	PHS	CHR	LP1	LP2	LP3	LP4	GEO	DER
NAME OF VARIABLE	Phasmid,	Chrysolmelid	Lepidoptera 1	Lepidoptera 2 (Pyralid?)	Lepidoptera 3	Moth of the Lepidoptera family	Geometrid	Derbid, Dawnaria
DEFINITION OF VARIABLE	Number of individuals of Phasmid invertebrate morphotype	Number of individuals of Chrysolmelid invertebrate morphotype	Number of individuals of Lepidoptera 1 invertebrate morphotype	Number of individuals of Lepidoptera 2 (Pyralid?) invertebrate morphotype	Number of individuals of Lepidoptera 3 invertebrate morphotype	Number of individuals of Moth of the Lepidoptera family invertebrate morphotype	Number of individuals of Geometrid invertebrate morphotype	Number of individuals of Derbid, Dawnaria invertebrate morphotype
UNIT
PRECISION
RANGE OR LIST OF VALUES	0, ...	0, ...	0, ...	0, ...	0, ...	0, ...	0, ...	0, ...
DATA TYPE	integer	integer	integer	integer	integer	integer	integer	integer
MISSING DATA CODES

VARIABLES (ATTRIBUTES):

FILE NAME OR #ABOVE(all in which the variable appears)	1	1	1	1	1	1	1	1
ABBREVIATION(as it appears on the data file)	DEL	PSE	APH	TRP	MEM	FLT	CX1	CIC
NAME OF VARIABLE	Delphacid	Pseudoflatoides	Aphid	Tropiduchid	Membracid	Flatid, Petrusa	Cixiid 1	Cicadellid
DEFINITION OF VARIABLE	Number of individuals of Delphacid invertebrate morphotype	Number of individuals of Pseudoflatoides invertebrate morphotype	Number of individuals of Aphid invertebrate morphotype	Number of individuals of Tropiduchid invertebrate morphotype	Number of individuals of Membracid invertebrate morphotype	Number of individuals of Flatid, Petrusa invertebrate morphotype	Number of individuals of Cixiid 1 invertebrate morphotype	Number of individuals of Cicadellid invertebrate morphotype
UNIT
PRECISION
RANGE OR LIST OF VALUES	0, ...	0, ...	0, ...	0, ...	0, ...	0, ...	0, ...	0, ...
DATA TYPE	integer	integer	integer	integer	integer	integer	integer	integer
MISSING DATA CODES

VARIABLES (ATTRIBUTES):

FILE NAME OR #ABOVE(all in which the variable appears)	1	1	1	1	1	1	1	1
ABBREVIATION(as it appears on the data file)	PSY	CC1	CC2	CC3	CC4	MIR	CX2	BT1
NAME OF VARIABLE	Psyllid	Scale, Vinsonia stellifera	Scale, long, brown	Scale, hemispherical	Scale, flat, round	Mirid	Cixiid 2	Blattid 1
DEFINITION OF VARIABLE	Number of individuals of Psyllid invertebrate morphotype	Number of individuals of Scale, Vinsonia stellifera invertebrate morphotype	Number of individuals of Scale, long, brown invertebrate morphotype	Number of individuals of Scale, hemispherical invertebrate morphotype	Number of individuals of Scale, flat, round invertebrate morphotype	Number of individuals of Mirid invertebrate morphotype	Number of individuals of Cixiid 2 invertebrate morphotype	Number of individuals of Blattid 1 invertebrate morphotype
UNIT
PRECISION
RANGE OR LIST OF VALUES	0, ...	0, ...	0, ...	0, ...	0, ...	0, ...	0, ...	0, ...
DATA TYPE	integer	integer	integer	integer	integer	integer	integer	integer
MISSING DATA CODES

VARIABLES (ATTRIBUTES):

FILE NAME OR #ABOVE(all in which the variable appears)	1	1	1	1	1	1	1	1
ABBREVIATION(as it appears on the data file)	BT2	OR3	COL	PSO	CLM	OR1	OR2	URP
NAME OF VARIABLE	Blattid 2, beetle-like	Oribatid 3	Collembola	Psocoptera	Clambid beetle	Oribatid 1, like Camisia	Oribatid 2, like Opiella	Uropodid mite
DEFINITION OF VARIABLE	Number of individuals of Blattid 2, beetle-like invertebrate morphotype	Number of individuals of Oribatid 3 invertebrate morphotype	Number of individuals of Collembola invertebrate morphotype	Number of individuals of Psocoptera invertebrate morphotype	Number of individuals of Clambid beetle invertebrate morphotype	Number of individuals of Oribatid 1, like Camisia invertebrate morphotype	Number of individuals of Oribatid 2, like Opiella invertebrate morphotype	Number of individuals of Uropodid mite invertebrate morphotype
UNIT
PRECISION
RANGE OR LIST OF VALUES	0, ...	0, ...	0, ...	0, ...	0, ...	0, ...	0, ...	0, ...
DATA TYPE	integer	integer	integer	integer	integer	integer	integer	integer
MISSING DATA CODES

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Note: See complete list of variables (csv format)

COMPUTATIONAL METHODS:

Variable Name	Formula
Numbers of each morphotype are eventually divided by FWT to standardize abundances (number/gram foliage) for statistical comparison of abundances among treatments, tree species, and years.

DATE OF LAST REVIEW: July 29, 2008
DATE OF LAST ENTRY:23 Jul 2006
STAGE OF DATA SET MANAGEMENT (dates):
RECEIVED: 1997
ENTERED: 1997
FILED ON-LINE REVIEWED BY RESEARCHER
FILING MEDIA: magnetic media
NAME OF DOCUMENTATION FILE: lterdb98.fm*
NAME OF DATA FILE: PR9192 , PR9495, PR0206.qpw
NAME OF ON - LINE CATALOG:  Lterdbas  
RECORD #: 96
DOCUMENT TYPE: magnetic media
PRIORITY TO BE ENTERED: N/A

Rev. date of this form: 27 March 2002