Species distribution modeling and conservation assessment of the northwestern Argentinian highland papayas under global change scenarios

Translated title of the contribution: Species distribution modeling and conservation assessment of the northwestern Argentinian highland papayas under global change scenarios

M. Manuela Urtasun, Eugenia M. Giamminola, Carola Y. Lamas, Carol Caudle Baskin, Johanna Croce, Ramiro N. Curti, Marta L.de Viana

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Wild species related to crops are a source of genes for improving crop tolerance of biotic and abiotic stresses. Vasconcellea quercifolia and V. glandulosa are wild relatives of papaya (Carica papaya). They are the southernmost-distributed members of the genus and have traits related to tolerance of temperature and precipitation seasonality. Climate and land-use changes, however, are threatening their persistence. Our objectives were to identify priority ex situ conservation areas based on the potential distribution of both species in northwestern Argentina under global change scenarios. The potential distribution of Vasconcellea spp. was modeled using occurrence data and five bioclimatic non-correlated variables. Distribution range shifts were assessed in two climate change scenarios for the year 2050, considering land-use changes. Gap analysis methodology was applied, and conservation priorities were identified by an integrated approach of conservation strategies. Vasconcellea quercifolia has a wider habitat suitability area than V. glandulosa, and the effect of landuse change on distribution was higher for the former than latter species. Conversely, climate change would be more negative on V. glandulosa than V. quercifolia, and the synergic effect of both climate and land-use changes would be higher for V. quercifolia than V. glandulosa. According to gap analysis, both Vasconcellea spp. are high priority species for further germplasm collection. We identified priority areas for ex situ conservation.

Translated title of the contributionSpecies distribution modeling and conservation assessment of the northwestern Argentinian highland papayas under global change scenarios
Original languageEnglish
Pages (from-to)331-342
Number of pages12
JournalEcologia Austral
Volume32
Issue number2
DOIs
StatePublished - Aug 2022

Bibliographical note

Publisher Copyright:
© 2022, Asociacion Argentina de Ecologia. All rights reserved.

Keywords

  • Maxent
  • V glandulosa
  • Vasconcellea quercifolia
  • climate change
  • crop wild relatives
  • ex situ conservation
  • land-use change

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology

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