Data Set Citation
Marvier M of Santa Clara University.Effects of Bt crops on nontarget invertebrates.
cmccreedy.3.39 (http://knb.ecoinformatics.org/knb/metacat/cmccreedy.3.39/nceas).
Data Tables, Images, and Other Entities:
Metadata download:Ecological Metadata Language (EML) File
Data Table: (View Metadata )
Online Distribution Info:
Download File: http://delphi.nceas.ucsb.edu/btcrops/
Offline Distribution Info:
Medium:digital
Data Set Owner(s):
Individual: Michelle Marvier
Organization:Santa Clara University
Email Address:
mmarvier@scu.edu
Abstract:
 
Data were extracted from a large collection of published and unpublished studies that examined the effects of transgenic Bt crops on nontarget invertebrate species. Nontarget species are species other than the pest targeted by the specific Bt crop variety. Database includes methodological details and results from each study, as well as a full literature citation and information about the authors of each paper. Individual studies frequently examined multiple species or reported multiple response variables. Each line of data represents a single comparison of an invertebrate organism in an 'exposed' versus a 'control' treatment. Control treatments are non-transgenic varieties of the same crop species, either with or without pesticide applications. Both field and lab studies are included. In some cases, data were obtained by scanning figures and measuring data values from the scanned images. We attempted to contact authors of papers to verify scanned data values and to fill in missing details about their studies. Whether the author replied is indicated in the database.
Keywords:
Thesaurus:NASA Global Change Mastor Directory
 
  • Arthropods
  • Parasitism
  • Pollinator Species
  • Herbivory
  • Invertebrates
  • Plant Breeding and Genetics
  • Cropping Systems
  • Pesticides
  • Transgenic crops
  • Bt crops
  • Natural Enemies
  • Nontarget effects
  • Bacillus thuringiensis
  • Genetically modified crops
  • Beneficial insects
  • Cry proteins
License and Usage Rights:
 
Please cite the database as 'Marvier, M., C. McCreedy, J. Regetz, and P.Kareiva. Nontarget effects of Bt crops database. http://delphi.nceas.ucsb.edu/btcrops'
Geographic Coverage:
Geographic Description:Worldwide
Bounding Coordinates:
West:  179.25  degrees
East:  179.25  degrees
North:  90.0  degrees
South:  -61.875  degrees
Temporal Coverage:
Begin:
1989
End:
2006
Taxonomic Coverage:
Rank NameRank ValueCommon Names
Taxon:
PhylumArthropoda
Access Control:
Auth System:knb
Order:denyFirst
Access Rules:
ALLOW:
[read]
public
ALLOW:
[read]
[write]
[changePermission]
cn=knb-prod,o=NCEAS,dc=ecoinformatics,dc=org
ALLOW:
[read]
[write]
[changePermission]
uid=regetz,o=NCEAS,dc=ecoinformatics,dc=org
Contact:
Individual: Michelle Marvier
Organization:Santa Clara University
Email Address:
mmarvier@scu.edu
Methods Info:
Step 1:  
Description:
Criteria for inclusion in this database
1. Study compares a Bt crop and a non-Bt crop (either with or without pesticide application).
2. Study reports a response (e.g. survival, fecundity, abundance, presence) of at least one non-target invertebrate group.
3. Means and SDs reported for each treatment or available from the author.