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Gap Analysis
Andy Jarvis, Julián Ramírez, Nora Castañeda, Robert Hijmans and Jacob Van Etten
© Neil Palmer (CIAT)
Why Gap Analysis?
• Tool to assess crop genetic and geographical diversity.
• Allows detecting non-fulfilled species collections as well as defining which species should be collected and where these collections should be focused.
• Assesses the current extent at which the ex situ conservation system is correctly holding the genetic diversity of a particular genepool.
The Gap Analysis pathway
Taxonomy review Data gathering Georeferentiaton
Environmental
data gathering
Gap Analysis
process
Final
recommendations
Geographic dimension
Environmental dimensionTaxonomic dimension
The Gap Analysis process
Proxy for:
• Range of traits
Proxy for:
• Diversity
• Possibly biotic traits
Proxy for:
• Abiotic traits
• Identifying gaps
Taxa priorization
High P
riorit
y Tax
a
Med
ium P
riorit
y Tax
a
Low P
riorit
y Tax
a
No co
nser
vatio
n re
quire
d
The Rugosi and Acutifolii case
• Section Acutifolii– P. acutifolius– P. acutifolius var. acutifolius– P. acutifolius var. latifolius– P. acutifolius var. tenuifolius– P. parvifolius
• Section Rugosi– P. angustissimus– P. filiformis– P. carteri
Debouck, D. (2009). Cahiers de Phaséologie – section Rugosi. Retrieved November 3, 2009, from http://isa.ciat.cgiar.org/urg/
Debouck, D. (2009). Cahiers de Phaséologie – section Acutifolii. Retrieved November 3, 2009, from http://isa.ciat.cgiar.org/urg/
Environmental coverage
Prioritization results
High Priority Taxa (HPT)
• Where to find the most?
High Priority Taxa (HPT)
P. carteri
Section: Rugosi
P. acutifolius var. latifolius
Section: Acutifolii
• HPT for Rugosi and Acutifolii• HPT and Protected Areas
High Priority Taxa (HPT)
• HPT and Protected Areas
Are there analyses for other crops?
13 crop genepools analyzed, 7 analyses in the pipeline Recommendations on which taxa are priority to conserve Maps indicating what and where to collect Results publicly available at: http://gisweb.ciat.cgiar.org/GapAnalysis/
Taxon-level and genepool level priorities
Methodology and code
MethodologyCode
Priorities list per genepool
Georeferenced datasets
Gap Analysis
http
://g
isw
eb.c
iat.
cgia
r.or
g/G
apA
naly
sis/
Additional joint actions
Journal of the Botanical Research Institute of Texas
P. marechalii P. rotundatus
Section Paniculati
Additional joint actions Morphological observations Ecology Electrophoretic evidence
Jesús Salcedo (Bioversity)