prioritizing crop wild relatives collecting
TRANSCRIPT
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Identifying conservation priorities for crop wild relatives
Nora P. Castañeda-Álvarez, Colin K. Khoury, Harold A. Achicanoy, Vivian Bernau, Hannes Dempewolf, Ruth J. Eastwood, Luigi Guarino, Ruth H. Harker, Andy Jarvis, Nigel Maxted, Jonas V. Müller, Julian Ramirez-Villegas, Chrystian C. Sosa, Paul C. Struik, Holly
Vincent, & Jane Toll
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Ex situ conservation of CWR
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Ex situ conservation of CWR
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CWR in genebanks: How much is enough?
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How much is enough? Our process
Density of seed collections
Areas where gaps exist in ex situ collections for multiple taxa
Density of records
Ramírez-Villegas, J., Khoury, C., Jarvis, A., Debouck, D.G., Guarino, L., 2010. A gap analysis methodology for collecting crop genepools: A case study with Phaseolus beans. PLoS ONE 5, e13497.
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Determine gaps in collections
Model distributions
Gather taxonomic data
Gather occurrence
data
Make collecting recommendations
Georeferencing
TaxonomicGeographicEcological
How much is enough? Our process
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Our processDefinition of crops and crop wild relative taxa to analyze:• 81 crop genepools globally important for food security.• 1079 crop wild relative taxa (GP1 and GP2 + less closely related taxa with
proven and potential uses in breeding)
Vincent, H. et al. Biological conservation. 167, 265-275 (2013)
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Our processGathering and curating occurrence data from 420 data sources• Data quality check
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Our processModelling the distribution of CWR• MaxEnt: modelling algorithm
• 19 climatic variables• 5 x 5km resolution• Native range of each taxa
Measuring 3 gap analysis metrics• Sampling Representativeness Score• Geographic Representativeness Score• Ecological Representativeness Score
Identifying collecting and conservation priorities
Picture credit: https://scienceasaverb.wordpress.com/2010/10/29/introduction-to-ecological-niche-modeling-environmental-niche-modeling-species-distribution-modeling-part-two-what-is-niche-modeling/
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Our process
http://www.cwrdiversity.org/
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Our results: Collecting hotspotsGlobal collecting hotspots for High Priority Taxa, for 76 crop gene pools
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Priorities for conservation
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High priority
taxa
for c
ollecti
on
Mid priority
taxa
for c
ollecti
on
Low prio
rity t
axa fo
r colle
ction
No furth
er colle
ction is
required
0100200300400500600700800900
No.
of C
WR
taxa
71%
13% 12%5%
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Broom milletFinger milletQuinoaRiceMaize
Foxtail milletOat
BarleyFoxtail milletRyeWheat
Finger milletPearl milletRiceSorghum
Foxtail milletPearl milletRiceSorghum
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BeanLima Bean Bambara groundnut
CowpeaGrasspea
GrasspeaLentilPeaChickpeaVetch
Adzuki beanMung beanPigeonpeaUrd bean
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• CWR inventory• Occurrence dataset• Gap analysis results
http://www.cwrdiversity.org/resources/
Our products
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Conservation priorities for crop wild relatives
Thank you!
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