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

Aymer Andrés Vásquez-Ordóñez1, Aymer Andrés Vásquez Ordóñez1, Soroush Parsa1, Rodrigo Zuñiga1

1 Centro Internacional de Agricultura Tropical, CIAT, Km 17 Recta Cali-Palmira, 6713, Cali, Colombia

Corresponding author(s): Aymer Andrés Vásquez-Ordóñez (a.a.vasquez@cgiar.org)

Received {date}; Revised {date}; Accepted {date}; Published {date}

Citation: Combination of authors, year of data paper publication (in parentheses), Title, Journal Name, Volume, Issue number (in parentheses), and doi of the data paper.

Resource Citation

Vásquez-Ordóñez A.A., Parsa S. (2014-). A geographic distribution database of Mononychellus mites (Acari: Tetranychidae) on cassava (Manihot esculenta), 1513 records, online, http://ipt.sibcolombia.net/valle/resource.do?r=ciat_001, published on 14/03/2014, version 1.0 (update 03/10/2014). http://doi.org/10.15472/83z2n7

Abstract

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).

Keywords: Cassava Green Mite, Cassava Green Mite Complex, International Center for Tropical Agriculture (CIAT), CIAT’s Arthropod Reference Collection (CIATARC)., Occurrence, Observation, VALLE_DEL_CAUCA, Occurrence

Project details

Project title: Management of RTB Critical Pests and Diseases under Changing Climates, through Risk Assessment, Surveillance and Modeling
Personnel: Soroush Parsa
Funding: This project was supported by the Roots, Tubers and Bananas (RTB) Research Program of the Consultative Group on International Agricultural Research (CGIAR).
Study area descriptions/descriptor: 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.

Data published through GBIF: https://ipt.biodiversidad.co/sib/resource?r=ciat_001

Taxonomic coverage

General taxonomic coverage description: 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).
Taxonomic ranks
Species: Mononychellus caribbeanae, Mononychellus mcgregori, Mononychellus planki, Mononychellus tanajoa
Common names: Cassava Green Mite Complex, Cassava Green Mite Complex, Cassava Green Mite Complex, Cassava Green Mite Complex, Cassava Green Mite

Spatial coverage

General spatial 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).
Coordinates: 27°5'56.4''S and 22°54'14.4''N Latitude; 95°13'1.2''W and 109°34'51.6''E Longitude 

Temporal coverage: June 18, 1975 - March 11, 2012

Natural collections description

Parent collection identifier: CIATARC
Collection name: CIAT Arthropod Reference Collection
Collection identifier: Registro Nacional de Colecciones Biológicas:208
Specimen preservation method: Microscopic preparation

Methods

Method step description: 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.
Study extent 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).
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 description: 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]).

Ajuste de vocabularios controlados en:
Elementos geográficos: stateProvince y county;

Datasets

Dataset description
Object name: Darwin Core Archive A geographic distribution database of Mononychellus mites (Acari: Tetranychidae) on cassava (Manihot esculenta)
Character encoding: UTF-8
Format name: Darwin Core Archive format
Format version: 1.0
Distribution: https://ipt.biodiversidad.co/sib/archive.do?r=ciat_001
Publication date of data: 2022-01-06
Language: English
Licences of use: Public Domain (CC0 1.0)

Metadata language: English
Date of metadata creation: 2014-03-06
Hierarchy level: Dataset

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