A geographic distribution database o…

Occurrence dataset published by Centro Internacional de Agricultura Tropical (CIAT)

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    Occurrences
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Summary

Full Title

A geographic distribution database of Mononychellus mites (Acari: Tetranychidae) on cassava (Manihot esculenta)

Description

The genus Mononychellus is represented by 28 herbivorous mites. Some of them are notorious pests of cassava (Manihot esculenta Crantz), a primary food crop in the tropics. With the exception of Mononychellus tanajoa (Bondar), their geographic distribution is not widely known. This dataset therefore reports observational and specimen-based occurrence data of Mononychellus species associated with cassava. The dataset consists of 1,513 distribution records documented by the International Center for Tropical Agriculture (CIAT) between 1975 and 2012. The specimens are held at CIAT’s Arthropod Reference Collection (CIATARC). Most of the records are from the genus’ native range in South America and were documented between 1980 and 2000. Approximately 61% of the records belong to M. tanajoa, 25% to M. caribbeanae (McGregor), 10% to M. mcgregori (Flechtman & Baker) and 2% to M. planki (McGregor).

Temporal coverages

Date range: Jun 18, 1975 - Mar 11, 2012

Language of Data

 

Administrative contact
Aymer Andrés Vásquez-Ordóñez
Research Assistant
Centro Internacional de Agricultura Tropical, CIAT Km 17 Recta Cali-Palmira 6713 Cali Valle del Cauca Colombia +57 (2) 4450000
Metadata author
Aymer Andrés Vásquez Ordóñez
Research Assistant
Centro Internacional de Agricultura Tropical, CIAT Km 17 Recta Cali-Palmira 6713 Cali Valle del Cauca Colombia +57 (2) 4450000
Originator
Aymer Andrés Vásquez-Ordóñez
Research Assistant
Centro Internacional de Agricultura Tropical, CIAT Km 17 Recta Cali-Palmira 6713 Cali Valle del Cauca Colombia +57 (2) 4450000

Taxonomic Coverage

Most records were identified to species level (98 %, 1483/1513) with the help of expert input (José María Guerrero, Pilar Hernandez). Only four species of the genera are reported. Approximately 61% of the records belong to Mononychellus tanajoa (Bondar, 1938), 25% to M. caribbeanae (McGregor, 1950), 10% to M. mcgregori (Flechtman & Baker, 1970) and 2% to M. planki (McGregor, 1950).

SPECIES
Mononychellus caribbeanae (Cassava Green Mite Complex), Mononychellus mcgregori (Cassava Green Mite Complex), Mononychellus planki (Cassava Green Mite Complex), Mononychellus tanajoa (Cassava Green Mite Complex, Cassava Green Mite)

1,442 Georeferenced data

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Description

The Mononychellus specimens and observations of CIATARC are from South America (14 countries), Central America (Cuba, more

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Geographic Coverage

The Mononychellus specimens and observations of CIATARC are from South America (14 countries), Central America (Cuba, Haiti, Honduras, Mexico, Nicaragua, Trinidad and Tobago), Africa (Benin, Kenia, Mozambique, Nigeria) and Asia (Vietnam, China).

Management of RTB Critical Pests and Diseases under Changing Climates, through Risk Assessment, Surveillance and Modeling

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Study area description

The Mononychellus specimens and observations of CIATARC are from South America (14 countries), Central America (Cuba, Haiti, Honduras, Mexico, Nicaragua, Trinidad and Tobago), Africa (Benin, Kenia, Mozambique, Nigeria) and Asia (Vietnam, China).

Design description

The objective of our project is to determine the global environmental suitability for the establishment of Mononychellus green mites. The need for this assessment is particularly acute for M. mcgregori, recently detected as an invasive pest of cassava in China and Vietnam. Also important is the analysis of M. tanajoa, a notorious pest of cassava currently restricted to the Americas and to sub-Saharan Africa. Our studies are intended to facilitate Pest Risk Analyses (PRA), and to test for environmental niche differentiation between the multiple Mononychellus species.

Funding

This project was supported by the Roots, Tubers and Bananas (RTB) Research Program of the Consultative Group on International Agricultural Research (CGIAR).

Project Personnel

Principal investigator
Soroush Parsa

Associated parties

Custodian steward
Rodrigo Zuñiga
Technician
Centro Internacional de Agricultura Tropical, CIAT Km 17 Recta Cali-Palmira 6713 Cali Valle del Cauca Colombia +57 (2) 4450000
Principal investigator
Soroush Parsa
Entomologist
Centro Internacional de Agricultura Tropical, CIAT Km 17 Recta Cali-Palmira 6713 Cali Valle del Cauca Colombia +57 (2) 4450000

Methodology

Study extent

The Mononychellus specimens and observations of CIATARC are from South America (14 countries), Central America (Cuba, Haiti, Honduras, Mexico, Nicaragua, Trinidad and Tobago), Africa (Benin, Kenia, Mozambique, Nigeria) and Asia (Vietnam, China).

Sampling description

The records in the dataset have been documented in three ways: 1) Records from CIAT’s initial field explorations to document pests in cassava (Guerrero & Belloti 1981; 4.4% records, between 1975-1983). 2) Records documented during the “Cassava Green Spider Mite Biological Control Project,” led by CIAT, IITA, CIBC and EMBRAPA (Bellotti et al. 1987, 1996, 1998, 2000, Byrne et al. 1983; CIAT 1984, 1985, 1986, 1990, 1992, 1995, Braun et al. 1993, Guerrero et al. 1993, CIAT et al. 1998; 89.6%, 1983-1999). Their locations were systematically selected based on their climatic homology to M. tanajoa-affected areas in Africa (Bellotti et al. 1987, CIAT 1993, Guerrero et al. 1993). 3) Records from other sources; including field inspections and collections conducted during routine farm visits by CIAT personnel, and from specimens submitted to CIATARC by fellow institutions and researchers (Bellotti et al. 2000; CIAT 2001, 2002, 2003; 6%, 2000-2012). The sampling process typically involved scouting cassava fields for infested plants, identified by speckling of their terminal leaves, followed by a close-up inspection for green mites using a 10x magnifying glass. To collect specimens, mites were then brushed off from leaves into collection vials containing a lactophenol solution (Krantz 1978) and maintained in ice chests until reaching the laboratory for proper mounting and identification (Bellotti et al. 1987, CIAT 1993, Guerrero et al. 1993).

Quality control

Record validation and cleaning was incorporated at several steps of the documentation process, following guideless by Chapman (2005 a,b). The scientific names on labels were checked with a taxonomic thesaurus developed by AAV. This thesaurus compiled all known synonyms and spelling variants of the scientific names used for our focal species. We assigned scientific names in accordance to current taxonomy trends. Geographic coordinates were verified using the “Check Coordinates” function in DIVA-GIS (Hitmans et al. 2001). For this last step, we relied on the Global Administrative Unit Layers (GAUL) shape file developed by the Food and Agriculture Organization of the United Nations (FAO, http://www.fao.org/geonetwork/srv/en/metadata.show?id=12691, [accessed 2013/11/14]).

Method Steps

  1. The dataset integrates two data flows: observational records and specimen-based records, identified either to genus or to species. The former were digitized from field diagnostic forms completed by personnel extensively trained in mite identification. These identifications, however, were likely conducted on site without mounting and preserving samples. Alternatively, these observations may correspond to properly-mounted but lost specimens. In either case, our confidence in the identification of observational records is high to genus level, but guarded to species level. On the other hand, specimen-based records belong to verifiable samples properly-preserved at CIATARC following the guidelines of Krantz (1978). Unique accession numbers were assigned to all records. All biodiversity data available (i.e. specimen, species identification, name of determiner, sex, biological phase, locality, date, habitat, host, collector and observations) was digitized in a Microsoft Excel 2010 spreadsheet adopting the Darwin Core Archive format v1.2 (Wieczorek et al. 2012). We updated locality fields (e.g., district, municipality) using the most current names and classifications of administrative divisions used by each country (e.g. http://www.dane.gov.co/Divipola/ for Colombia, http://www.inec.gob.ec/estadisticas/?option=com_content&view=article&id=80 for Ecuador, etc. [accessed 2013/11/14]). Based on their locality names, we then geocoded the records using Google Maps (https://maps.google.com/), GeoNames (http://www.geonames.org/) or Amézquita et al. (2013). GPS coordinates were converted to decimal degrees.

Specimen Preservation method

Microscopic preparation

References

Amézquita E, Rao IM, Rivera M, Corrales II, Bernal JH. 2013. Sistemas Agropastoriles: Un enfoque integrado para el manejo sostenible de Oxisoles de los Llanos Orientales de Colombia. Centro Internacional de Agricultura Tropical CIAT.

Bellotti AC, Mesa N, Serrano M, Guerrero JM, Herrera CJ. 1987. Taxonomic Inventory and Survey Activity for Natural Enemies of Cassava Green Mites in the Americas. Insect Science and its Application 8 (4/5/6): 845-849.

Bellotti AC, Alvarez E, Calvert L, Smith L, Lapointe S, Ospina B, El-Sharkawy M, Mueller K, Howeler R, Riss L, Bertschy C. 1996. Project 7: Integrated Cassava Crop Management in Major Agroecosystems of Latin America and Asia. Annual Report 1996. Centro Internacional de Agricultura Tropical. 60 pp.

Bellotti AC, Alvarez E, Calvert L, Calatayud PA, Ospina B, Anderson P. 1998. Project PE-1: IPM for a Safer Environment: Integrated Pest Management in Major Agroecosytems in the Americas. Annual Report 1996. Centro Internacional de Agricultura Tropical. 135 pp.

Bellotti AC, Calatayud PA, Dorn B, Alvarez E, Peck D, Calvert L, Buruchara R, Ampofo K, Anderson P. 2000. Project PE-1: Integrated Pest and Disease Management in Major Agroecosytems in the Americas. Annual Report 2000. Centro Internacional de Agricultura Tropical. 190 pp.

Braun AR, Alvarez JM, Cuéllar ME, Duque MC, Escobar JR, Franco C, Gaigl A, Guerrero JM, Lenis JI, Melo EL, Mesa NC, Zuñiga R. 1993 Invetario de ácaros fitófagos y sus enemigos naturales en el cultivo de la yuca en Ecuador. 1-52 pp. In: Braun AR. Bases fundamentales para investigación sobre los ácaros plagas y sus enemigos naturales en el Ecuadro. Documento de Trabajo No. 126. Centro Internacional de Agricultura Tropical, CIAT. 172 pp.

Byrne DH, Bellotti AC, Guerrero JM. 1983. The Cassava Mites. Tropical Pest Management 29(4): 378-394.

Chapman AD (2005a) Principles and Methods of Data Cleaning – Primary Species and Species-Occurrence Data, version 1.0. Global Biodiversity Information Facility, Copenhagen, 75 pp.

Chapman AD (2005b) Principles of Data Quality, version 1.0. Global Biodiversity Information Facility, Copenhagen, 61 pp.

CIAT. 1984. Annual Report 1984. Cassava Program. Centro Internacional de Agricultura Tropical, CIAT. Working Document No. 1. 270 pp.

CIAT. 1985. Annual Report 1985. Cassava Program. Centro Internacional de Agricultura Tropical, CIAT. Working Document No. 38. 371 pp.

CIAT. 1986. Annual Report 1986. Cassava Program. Centro Internacional de Agricultura Tropical, CIAT. Working Document No. 43. 254 pp.

CIAT. 1990. Annual Report 1990. Cassava Program. Centro Internacional de Agricultura Tropical, CIAT. Working Document No. 95. 385 pp.

CIAT. 1992. Annual Report 1987-1991. Cassava Program. Centro Internacional de Agricultura Tropical, CIAT. Working Document No. 116. 473 pp.

CIAT. 2001. Project PE-1: Integrated Pest and Disease Management in Major Agroecosytems in the Americas. Annual Report 2001. Centro Internacional de Agricultura Tropical. 211 pp.

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CIAT. 2003. Project PE-1: Integrated Pest and Disease Management in Major Agroecosytems in the Americas. Annual Report 2003. Centro Internacional de Agricultura Tropical. 258 pp.

CIAT, ITTA, EMBRAPA/CNPMF. 1998. Ecologically Sustainable Cassava Plant Protection in South America and Africa: An Environmentally Soun Approach. 1997 Annual report of Activities in South America. Centro International de Agricultura Tropical, CIAT; The International Institute for Tropical Agriculture, ITTA; Empresa Brasileira de Pesquisa Agropecu’aria, Centro Nacinal de Pesquisa de Mandioca e Frutas Tropicais, Embrapa/CNPMF. 115 pp.

Guerrero JM , Bellotti AC. 1981. Inventario de ácaros fitófagos en la yuca en Colombia. Yuca Boletin Informativo. No. 9.

Guerrero JM, Flechtman CHW, Duquez MC, Gaigl A, Bellotti AC, de Moraes GJ, Braun AR. 1993. Biogeography and Taxonomy of Mononychellus species associated with Manihot esculenta Crantz in the Americas. Centro Internacional de Agricultura Tropical, CIAT. 54 pp.

Krantz GW. 1978. A Manual of Acarology. Second Edition. Oregon State University Book Stores, Inc. 509 pp.

Hitmans RJ, Guarino L, Cruz M, Rojas E. 2001. Computer tools for spatial analysis of plant genetic resources data: 1. Diva-Gis. Plant Genetic Resources Newsletter 127:15-19.

Wieczorek J, Bloom D, Guralnick R, Blum S, Döring M, Giovanni R, Tobertson T, Vieglais D. 2012 Darwin Core: An Evolving Community-Developed Biodiversity Data Standard. PLoS ONE 7(1): e29714.