INTERACTIVE TOOLKIT FOR
CROP WILD RELATIVE CONSERVATION PLANNING version 1.0

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An ecogeographic study comprises three main phases: project design, data collection/analysis and the ecogeographic products. The project design includes:

     1. Identification of target taxa expertise.

     2. Selection of target taxa taxonomy.

     3. Delimitation of target area.

     4. Design and creation of the database structure (optional).

The data collection and analysis phase includes:

     5. Survey of occurrence data, as well as passport, site and environment, and existing characterization and evaluation data.

     6. Collation of occurrence data into the database.

     7. Data verification.

     8. Data analysis.

The ecogeographic products include:

     9. A CWR occurrence data database (which contains raw data).

     10. A conspectus (that summarizes the taxonomic, geographical and ecological data for the target taxa).

     11. A report (which interprets the data and results obtained).

1. Identification of taxa expertise

Taxon experts and experts in the flora of a target area may provide accurate species location and ecological information and may be able to recommend relevant grey literature, Floras, monographs, taxonomic databases, the appropriate herbaria and genebanks to visit. They could also put the conservationist in contact with other specialists. Experts to contact may include:

  • Botanical, agrobiodiversity and biodiversity conservation, taxonomic, genetic, geographic, breeding researchers.
  • Herbaria and genebank curators.
  • NGOs working in conservation in the target region or on target crops.

2. Selection of target taxa taxonomy

The most widely accepted taxonomic classification can be determined with the aid of:

  • Target taxon experts.
  • National or global Floras.
  • Taxonomic monographs.
  • Recent taxonomic revisions.
  • Taxonomic databases etc.

It is important to detect existing synonyms to avoid missing specimens that may be identified under synonymous names and to prevent separate treatments of the same taxon. In the context of the development of a National Strategic Action Plan for CWR Conservation (NSAP)  [1], this step would already have been undertaken as part of the creation of the CWR checklist.

3. Delimitation of the target area

Normally an ecogeographic study should include the whole range of a species’ distribution so as to avoid the problem of non-compatible datasets that can be inherent in multiple surveys of the same taxon. However, given that conservation planning included in a NSAP is undertaken at national level, the whole country should be the target area.

4. (Design and creation of the occurrence database structure)

This step is optional as the use of the existing Occurrence data collation template  [2] is recommended (see step 6 for more details).

5. Survey of occurrence data

Sources of data are likely to include:

  • Scientific and ‘grey’ literature: Floras, monographs, recent taxon studies, reports of Environmental Impact Assessment studies1, databases, gazetteers, scientific papers, soil maps, vegetation maps, atlases etc., available both in paper form and as digital files.
  • Existing GIS layers illustrating species distribution.
  • Expert knowledge: contact with taxonomic or geographic experts is likely to provide significant additional data to facilitate the analysis and will also provide an opportunity to gain feedback on the analysis results.
  • Field survey data: where ecogeographic data is scarce there may be insufficient data to undertake meaningful ecogeographic analysis and it will then be necessary to collate fresh data from field observations of the target taxa.
  • For examples of data sources, click here  [4].

In addition, have a careful look at the recommendations listed in Annex A of Castañeda et al. (2011)  [5], which aims to facilitate the recording of passport data.

Ideally, occurrence data should be available for every CWR included in the study, though it should be stressed that georeferencing is often required to ensure the necessary data is complete. The broader the sampling of occurrence data the more geographically and ecologically representative the data, and ultimately the results, will be.

6. Collation of occurrence data into database

The use of the existing Occurrence data collation template  [2] is recommended. The template caters for different types of data (genebank accessions, herbarium specimens, bibliographic references, internet references, biodiversity or botanical databases (e.g. GBIF), personal communications from experts and field observations) and, if the data is to be used for ecogeographic diversity analyses, the template also helps the user to prepare the data for use in the CAPFITOGEN tools  [6] (Parra-Quijano et al. 2016).

  [7]
Schematic representation of occurrence data verification

7. Data verification

  • Check for duplicates. There are several types of duplicates:

    • Duplicate records: occurrence records that refer to the exact same record but the information came from different sources or was reported twice from the same source. These should be removed from the dataset.
    • Duplicate accessions/herbarium vouchers: genebank accessions or herbarium vouchers that were collected in the same locality, by the same collectors on the same date but held in different institutions. Usually these refer to collections that were divided by the collectors to be distributed among different institutions. These should not be removed from the dataset but should be tagged as duplicates. They may be useful, for example, to give an idea of the amount of seed available, however they are not relevant for the diversity, gap or climate change analyses.
    • Duplicate populations: populations (with the exact same coordinates) that have been sampled more than once at different dates by the same, or different, collectors. These are not duplicate records nor duplicate accessions/vouchers and should not be removed from the dataset. They will give an indication of how intensively that particular species is being collected, but they are also not relevant for diversity, gap or climate change analyses.

  • Check for spelling errors and standardize data format.
  • Georeference all the entries, if possible. All data should also be georeferenced by using (online) gazetteers, maps, Google Earth etc. (see here  [4] for georeferencing resources).
  • Assign a level of geographic precision. Different levels of precision can be assigned to each record. The appropriate level of precision to be considered for each type of data analysis can then be decided upon. For example, to locate areas for active in situ conservation, only very accurate data (levels 1, 2 and 3) might be used, but to map hotspots, both accurate data and coarser scale data might be used (levels 1, 2, 3 and 4).
  [8]
Examples of location data and their corresponding level of geographic precision (from Maxted et al. 2013).
  • Check for outlier locations. Distribution maps should be created (using GIS if possible) to look for outlier collection sites. All outlying individual records should then be corrected or, if correction is not possible, tagged and not used in the analysis.

8. Diversity analyses of collated occurrence data

Data analyses may include:

9. Data synthesis

After the data has been collated and analyzed, the following products should be produced: an occurrence database (which contains raw data after verification and standardization), an (optional) conspectus (which summarizes all of the data collated for each CWR) and a final report (which interprets the data obtained and is usually a part of a conservation planning report or a CWR National Strategic Action Plan/National Strategy).



1 Environmental Impact Assessment (EIA) have been defined by the IAIA and IEA (1999) as “the process of identifying, predicting, evaluating and mitigating the biophysical, social, and other relevant effects of development proposals prior to major decisions being taken and commitments made.” In other words, they permit assessing the possible negative and positive impacts that a project (e.g. highway, dam, building, etc.) may have on the natural, social and economic aspects. Regarding the biophysical aspect, EIA reports generally provide species lists of Flora (and Fauna) that occur in the area where the project is to be developed thus constituting important sources of species distributional data.


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