Plant conservation
Tropical Important Plant Areas
My involvement in the cross-departmental Tropical Important Plant Areas (TIPAs) programme at Royal Botanic Gardens, Kew not only comprises assessing the conservation status of (near) endemic Cyperaceae species from Cameroon, Guinea, Mozambique and Uganda, but also includes teaching on the Master de Biodiversité et de Développement Durable organised by Royal Botanic Gardens, Kew and the National Herbarium of Guinea at Université Gamal Abdel Nasser de Conakry. Furthermore, I have acted as project coordinator and grant writer for two interdisciplinary project proposals to the UKRI Global Challenges Research Fund: (1) GAIN (Guinea/Agrobiodiversity/Innovations/Networks) in 2016-2017 for c. £7.5m and (2) GCRF Underutilised plants of tropical Africa Hub in 2017-2018 for c. £16.5m.

In 2020, a new project has been launched promote conservation of threatened tree species in three Tropical Important Plant Areas (TIPAs) of Guinea funded by Fondation Franklinia. Together with Kew Africa team colleagues and our Guinean partners at the National Herbarium of Guinea, the Guinean government departments, and NGOs Guinée Ecologie and Association Guinéene d’Eveil au Developpement Durable, we aim to halt biodiversity loss in threatened habitats and reduce the threat of extinction of unique tree species in Guinea through a programme combining on-the-ground conservation actions, capacity building, policy change and opportunities to improve livelihoods through cultivation of native tree species in local communities.
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Relevant publications

Couch C, Molmou D, Magassouba S, Doumbouya S, Diawara M, Diallo MY, Keita SM, Koné F, Diallo MC, Kourouma S, Diallo MB, Keita MS, Oulare A, van der Burgt X, Larridon I, Cheek M (in review) An analysis of Species Conservation Action Plans in Guinea. BioRxiv Preprint: https://biorxiv.org/cgi/content/short/2020.01.27.920751v1 Oryx.

Couch C, Magassouba S, Molmou D, Larridon I, Cheek M (2017) Tropical Important Plant Areas - a Case study from Guinea. European Conference of Tropical Ecology. 6-10 February 2017. Abstracts. Brussels, Belgium. p. 388. Poster presentation in session “Concepts and methods for enhanced stakeholder-scientist interactions in tropical biodiversity conservation”

Media coverage
Blogs:

Couch C, Larridon I (2019) Guarding Guinea’s biodiversity. Kew Blog available online at https://www.kew.org/read-and-watch/guarding-guinea-africa-biodiversity

Larridon I, Couch C (2016) Training the trainers in Guinea. Kew Blog available online at https://www.kew.org/read-and-watch/training-the-trainers-guinea
Unlocking the potential of underutilised plants
The overarching aim of this project funded by a Pilot Study Fund grant from the Royal Botanic Gardens, Kew is to unlock the potential of underutilised plant species indigenous to Guinea. It has been set up in the context of the overarching project funding 3 Guinean students to obtain a doctorate so they can become the plant and fungal science teachers of the future. The first PhD student, Denise Molmou, has already started her project in a collaboration between Royal Botanic Gardens, Kew and Ghent University. Two more students aim to start soon after completing their Master de Biodiversité et de Développement Durable degrees.

Main objectives of the Pilot Study are to:
1. Use analytical approaches to determine chemical traits of underutilised species indigenous to Guinea.
2. Evaluate economic potential of selected underutilised species, including co-products, based on chemical traits relevant to nutrition, health and other uses for humanity.
3. Assess chemical diversity within species to underpin future selection of ‘chemically elite’ plants for sustainable cultivation.

Species will be selected based on a preliminary list of wild harvested socio-economic plant species of Guinea, and on expected potential uses due to knowledge of morphology and phylogenetic relationships to useful plants. The samples have been sourced through fieldwork carried out as part of the TIPAs project (samples already at Kew) and through planned fieldwork funded through other grants.

The funding applied for here will be used to conduct chemical analyses on extracts, prepared from different plant parts (capturing the potential of co-products) using high resolution accurate mass (HRAM) liquid chromatography-ultraviolet-mass spectrometry (LC-UV-MSn), low resolution LC-MS and gas chromatography-mass spectrometry (GC-MS) analysis; in addition to macronutrient and mineral analysis methods.
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Relevant publications

Cheek M, Magassouba S, Howes MJR, Doré T, Doumbouya S, Molmou D, Grall A, Couch C, Larridon I (2018) Kindia (Pavetteae, Rubiaceae), a new cliff-dwelling genus with chemically profiled colleter exudate from Mt Gangan, Republic of Guinea. PeerJ 6: e4666. Available online.

Promoting plant conservation through the IUCN Red List
In the context of the Tropical Important Plant Areas (TIPAs) programme at Royal Botanic Gardens, Kew and as a member of the IUCN SSC Freshwater Plant Specialist Group and West Africa Plant Red List Authority, I carry out conservation assessments of Cyperaceae and selected other monocots species to assess their risk of extinction.
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Relevant publications

Larridon I, Rabarivola ML (2019) Costularia andringitrensis. The IUCN Red List of Threatened Species 2019: e.T130617143A130617145. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T130617143A130617145.en.

Larridon I, Rabarivola ML (2019) Costularia baronii. The IUCN Red List of Threatened Species 2019: e.T139226490A139228473. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T139226490A139228473.en.

Larridon I, Rabarivola ML (2019) Costularia brevifolia. The IUCN Red List of Threatened Species 2019: e.T130617159A130617163. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T130617159A130617163.en.

Larridon I, Rabarivola ML (2019) Costularia cadetii. The IUCN Red List of Threatened Species 2019: e.T130617191A130617197. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T130617191A130617197.en.

Larridon I, Rabarivola ML (2019) Costularia humbertii. The IUCN Red List of Threatened Species 2019: e.T130617238A130617245. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T130617238A130617245.en.

Larridon I, Rabarivola ML (2019) Costularia itremoensis. The IUCN Red List of Threatened Species 2019: e.T130617262A130617264. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T130617262A130617264.en.

Larridon I, Rabarivola ML (2019) Costularia leucocarpa. The IUCN Red List of Threatened Species 2019: e.T130617330A130617347. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T130617330A130617347.en.

Larridon I, Baider CL (2019) Costularia melicoides. The IUCN Red List of Threatened Species 2019: e.T68150031A68150040. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T68150031A68150040.en.

Larridon I, Rabarivola ML (2019) Costularia microcarpa. The IUCN Red List of Threatened Species 2019: e.T130617411A130617509. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T130617411A130617509.en.

Larridon I (2019) Costularia natalensis. The IUCN Red List of Threatened Species 2019: e.T130617532A130617535. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T130617532A130617535.en.

Larridon I, Rabarivola ML (2019) Costularia pantopoda. The IUCN Red List of Threatened Species 2019: e.T130617547A130617561. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T130617547A130617561.en.

Larridon I, Rabarivola ML (2019) Costularia purpurea. The IUCN Red List of Threatened Species 2019: e.T130617618A130617621. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T130617618A130617621.en.

Larridon I, Rabarivola ML (2019) Costularia robusta. The IUCN Red List of Threatened Species 2019: e.T139226499A139228478. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T139226499A139228478.en.

Larridon I, Henriette E, Senterre E (2019) Costularia xipholepis. The IUCN Red List of Threatened Species 2019: e.T130617721A130617732. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T130617721A130617732.en.

Larridon I, Bauters K, Galán Díaz J, Rabarivola ML (2019) Scleria andringitrensis. The IUCN Red List of Threatened Species 2019: e.T123730366A123733775. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T123730366A123733775.en.

Larridon I, Galán Díaz J, Rabarivola ML (2019) Scleria angusta. The IUCN Red List of Threatened Species 2019: e.T123732637A123733825. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T123732637A123733825.en.

Larridon I, Bauters K, Galán Díaz J, Rabarivola ML (2019) Scleria ankaratrensis. The IUCN Red List of Threatened Species 2019: e.T123730451A123733780. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T123730451A123733780.en.

Larridon I, Galán Díaz J, Rabarivola ML (2019) Scleria baronii. The IUCN Red List of Threatened Species 2019: e.T123732751A123733830. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T123732751A123733830.en.

Larridon I, Galán Díaz J, Rabarivola ML (2019) Scleria hildebrandtii. The IUCN Red List of Threatened Species 2019: e.T123732302A123733815. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T123732302A123733815.en.

Larridon I, Bauters K, Galán Díaz J, Rabarivola ML (2019) Scleria hilsenbergii. The IUCN Red List of Threatened Species 2019: e.T123730539A123733790. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T123730539A123733790.en.

Larridon I, Galán Díaz J, Rabarivola ML (2019) Scleria madagascariensis. The IUCN Red List of Threatened Species 2019: e.T88513810A88513813. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T88513810A88513813.en.

Larridon I, Bauters K, Galán Díaz J, Rabarivola ML (2019) Scleria perpusilla. The IUCN Red List of Threatened Species 2019: e.T123730610A123733795. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T123730610A123733795.en.

Larridon I, Galán Díaz J, Rabarivola ML (2019) Scleria rosea. The IUCN Red List of Threatened Species 2019: e.T123732852A123733835. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T123732852A123733835.en.

Larridon I, Galán Díaz J, Rabarivola ML (2019) Scleria rutenbergiana. The IUCN Red List of Threatened Species 2019: e.T123732578A123733820. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T123732578A123733820.en.

Larridon I, Galán Díaz J, Rabarivola ML (2019) Scleria trialata. The IUCN Red List of Threatened Species 2019: e.T123733093A123733840. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T123733093A123733840.en.

Larridon I, Cheek M (2019) Mesanthemum albidum. The IUCN Red List of Threatened Species 2019: e.T139227362A139228483. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T139227362A139228483.en.

Larridon I (2019) Mesanthemum alenicola. The IUCN Red List of Threatened Species 2019: e.T139227385A139228488. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T139227385A139228488.en.

Richards S, Larridon I (2019) Mesanthemum angustitepalum. The IUCN Red List of Threatened Species 2019: e.T139227412A139228493. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T139227412A139228493.en.

Li B, Larridon I, Cheek M (2019) Mesanthemum auratum. The IUCN Red List of Threatened Species 2019: e.T138094918A139228468. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T138094918A139228468.en.

Hooper O, Cheek M, Larridon I (2019) Mesanthemum bennae. The IUCN Red List of Threatened Species 2019: e.T116135153A116135208. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T116135153A116135208.en.

Larridon I (2019) Mesanthemum cupricola. The IUCN Red List of Threatened Species 2019: e.T139227522A139228498. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T139227522A139228498.en.

Steed-Mundin O, Larridon I (2019) Mesanthemum glabrum. The IUCN Red List of Threatened Species 2019: e.T139227550A139228503. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T139227550A139228503.en.

Larridon I, Saad R (2019) Mesanthemum jaegeri. The IUCN Red List of Threatened Species 2019: e.T139227567A139228508. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T139227567A139228508.en.

Larridon I, Stevens V (2019) Mesanthemum pilosum. The IUCN Red List of Threatened Species 2019: e.T139227571A139228513. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T139227571A139228513.en.

Cheek M, Yu T, Larridon I (2019) Mesanthemum prescottianum. The IUCN Red List of Threatened Species 2019: e.T139227580A139228518. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T139227580A139228518.en.

Larridon I, Zhu Y (2019) Mesanthemum radicans. The IUCN Red List of Threatened Species 2019: e.T136641701A136641707. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T136641701A136641707.en.

Larridon I (2019) Mesanthemum reductum. The IUCN Red List of Threatened Species 2019: e.T139227849A139228523. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T139227849A139228523.en.

Couch CA, Cheek M, Larridon I (2019) Mesanthemum tuberosum. The IUCN Red List of Threatened Species: e.T116203902A116203978. https://www.iucnredlist.org/species/116203902/116203978.

Larridon I, Williams M (2019) Mesanthemum variabile. The IUCN Red List of Threatened Species 2019: e.T139681945A139682013. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T139681945A139682013.en.

Larridon I, Bauters K, Cheek M (2019) Scleria cheekii. The IUCN Red List of Threatened Species 2019: e.T123733546A123733850. http://dx.doi.org/10.2305/IUCN.UK.2019-1.RLTS.T123733546A123733850.en.

Larridon I, Lansdown RV (2018) Carex brassii. The IUCN Red List of Threatened Species 2018: e.T120147667A120147678. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T120147667A120147678.en.

Larridon I, Lansdown RV (2018) Cyperus aureobrunneus. The IUCN Red List of Threatened Species 2018: e.T120157469A120157473. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T120157469A120157473.en.

Larridon I, Lansdown RV (2018) Cyperus lipomonostachyus. The IUCN Red List of Threatened Species 2018: e.T120159208A120159211. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T120159208A120159211.en.

Larridon I, Lansdown RV (2018) Cyperus ridleyi. The IUCN Red List of Threatened Species 2018: e.T131763132A120162054. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T131763132A120162054.en.

Lansdown RV, Larridon I, Bauters K (2018) Scleria catophylla. The IUCN Red List of Threatened Species 2018: e.T120180227A120180231. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T120180227A120180231.en.

Larridon I, Lansdown RV, Bauters K, Galán Díaz J (2018) Scleria distans. The IUCN Red List of Threatened Species 2018: e.T120180276A120180338. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T120180276A120180338.en.

Lansdown RV, Larridon I, Bauters K (2018) Scleria dregeana. The IUCN Red List of Threatened Species 2018: e.T185539A120179533. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T185539A120179533.en.

Lansdown RV, Larridon I, Bauters K (2018) Scleria flexuosa. The IUCN Red List of Threatened Species 2018: e.T120180363A120180367. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T120180363A120180367.en.

Larridon I, Mani S, Lansdown RV, Galán Díaz J, Bauters K (2018) Scleria foliosa. The IUCN Red List of Threatened Species 2018: e.T177009A120179735. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T177009A120179735.en.

Lansdown RV, Larridon I, Bauters K (2018) Scleria glabra. The IUCN Red List of Threatened Species 2018: e.T120180385A120180405. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T120180385A120180405.en.

Larridon I, Thacker H, Juffe Bignoli D, Lansdown RV, Bauters K, Galán Díaz J (2018) Scleria greigiifolia. The IUCN Red List of Threatened Species 2018: e.T185680A120180017. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T185680A120180017.en.

Larridon I, Lansdown RV, Bauters K, Galán Díaz J (2018) Scleria lagoensis. The IUCN Red List of Threatened Species 2018: e.T120180481A120180587. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T120180481A120180587.en.

Larridon I, Lansdown RV, Bauters K, Galán Díaz J (2018) Scleria pooides. The IUCN Red List of Threatened Species 2018: e.T120180697A120180706. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T120180697A120180706.en.

Larridon I, Lansdown RV, Bauters K, Galán Díaz J (2018) Scleria racemosa. The IUCN Red List of Threatened Species 2018: e.T120180818A120180991. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T120180818A120180991.en.

Lansdown RV, Larridon I, Bauters K (2018) Scleria rehmannii. The IUCN Red List of Threatened Species 2018: e.T120181111A120181118. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T120181111A120181118.en.

Larridon I, Bauters K, Lansdown RV (2018) Scleria richardsiae. The IUCN Red List of Threatened Species 2018: e.T120181161A120181169. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T120181161A120181169.en.

Cheek M, Larridon I, Rokni S (2018) Scleria shielae. The IUCN Red List of Threatened Species 2018: e.T110080777A110080779. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T110080777A110080779.en.

Larridon I, Bauters K, Lansdown RV (2018) Scleria suaveolens. The IUCN Red List of Threatened Species 2018: e.T131769088A120180755. http://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T131769088A120180755.en.

Larridon I (2018) Pitcairnia feliciana. The IUCN Red List of Threatened Species 2018: e.T87753965A87753976. http://dx.doi.org/10.2305/IUCN.UK.2018-1.RLTS.T87753965A87753976.en.

Cheek M, Rokni S, Larridon I (2017) Coleochloa domensis. The IUCN Red List of Threatened Species 2017: e.T110080553A110080555. http://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T110080553A110080555.en.

Cheek M, Larridon I, Rokni S (2017) Cyperus rheophyticus. The IUCN Red List of Threatened Species 2017: e.T110093122A110093124. http://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T110093122A110093124.en.

Cheek M, Larridon I, Rokni S (2017) Hypolytrum unispicatum. The IUCN Red List of Threatened Species 2017: e.T110080667A110080669. http://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T110080667A110080669.en.

Cheek M, Larridon I, Rokni S (2017) Mapania raynaliana. The IUCN Red List of Threatened Species 2017: e.T110092998A110093000. http://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T110092998A110093000.en.

Larridon I, Rokni S, Cheek M (2017) Nemum megastachyum. The IUCN Red List of Threatened Species 2017: e.T110080723A110080725. http://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T110080723A110080725.en.

Cheek M, Larridon I, Rokni S, Pollard BJ, Darbyshire I (2017) Scleria afroreflexa. The IUCN Red List of Threatened Species 2017: e.T46196A110071228. http://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T46196A110071228.en.

Larridon I (2016) Bulbostylis bodardii. The IUCN Red List of Threatened Species 2016: e.T85730886A85730889. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T85730886A85730889.en.

Larridon I (2016) Bulbostylis guineensis. The IUCN Red List of Threatened Species 2016: e.T56564536A56564544. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T56564536A56564544.en.

Larridon I (2016) Cyperus felicis. The IUCN Red List of Threatened Species 2016: e.T85731137A85731147. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T85731137A85731147.en.

Larridon I, Diop FN, Mahamane A (2016) Cyperus lateriticus. The IUCN Red List of Threatened Species 2016: e.T185340A85711625. http://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T185340A85711625.en.

Larridon I (2016) Hypolytrum cacuminum. The IUCN Red List of Threatened Species 2016: e.T85731054A85731057. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T85731054A85731057.en.

Larridon I (2016) Nemum bulbostyloides. The IUCN Red List of Threatened Species 2016: e.T85731362A85731369. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T85731362A85731369.en.

Larridon I (2016) Scleria guineensis. The IUCN Red List of Threatened Species 2016: e.T85731314A85731317. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T85731314A85731317.en.

Main collaborators
United Kingdom
Belgium
Lars Chatrou (Ghent University)
Guinea
Sékou Magassouba, Denise Molmou, Gbamon Kounoumou, Pépé Albert Guilavogui (National Herbarium of Guinea)
Pépé M. Haba (Guinée Biodiversité)
Madagascar
Linah Rabarivola, Helene Ralimanana & Franck Rakotonasolo (Kew Madagascar Conservation Centre)
Funding
Royal Botanic Gardens, Kew (TIPAs Guinea funding, Pilot Study Fund grant…)
Fondation Franklinia
The Ellis Goodman Family Foundation (grant including part funding for 3 PhD projects on socio-economic plant and fungi of Guinea)
The Guinean government (PhD scholarship for Denise Molmou)
MSc in Plant and Fungal Taxonomy, Diversity and Conservation (Royal Botanic Gardens, Kew and Queen Mary University of London)
Research Foundation - Flanders (FWO) International mobility grants (Guinea, Uganda)
King Léopold III Foundation for the Exploration and Protection of Nature International mobility grants (Guinea, Uganda)