Monitoring system and in situ conservation of endemic and threatened Beta patula Aiton populations in Madeira Region
| Autor: | M. A. A. Pinheiro de Carvalho, Humberto Nóbrega, Gregório Freitas, Lothar Frese, Carla Ragonezi, Maria Amely Zavattieri |
|---|---|
| Přispěvatelé: | Laghetti, Gaetano |
| Jazyk: | portugalština |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine In situ conservation Population Size Population Biodiversity Escola Superior de Tecnologias e Gestão Plant Science Conservation 01 natural sciences Faculdade de Ciências da Vida Madeira Archipelago 03 medical and health sciences Diversity index Critically endangered CWR Genetics Biodiversity indices education Ecology Evolution Behavior and Systematics education.field_of_study Amaranthaceae biology Forestry biology.organism_classification 030104 developmental biology Wild beets Threatened species Isoplexis Species evenness Beta patula Aiton populations Monitoring system Madeira (Portugal) Agronomy and Crop Science 010606 plant biology & botany Species richness |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação instacron:RCAAP Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) |
| DOI: | 10.1007/s10722-020-01035-x#citeas |
| Popis: | Madeira Archipelago is a hotspot for crop wild relatives (CWR) of crop cultures. Some of these CWR are present in very specific environments, such as, in Ponta de Sao Lourenco or Desertas Islands. One such species is Beta patula Aiton, a Critically Endangered species which belongs to the Gene Pool 1b of cultivated beets. A continuous effort has been developed for its ex situ conservation through the storage of accessions (ISOP2512 and ISOP1911) in the ISOPlexis GeneBank at the University of Madeira. Simultaneously, a series of studies have been carried out to understand the species’ ecogeographic and ecological requirements, to validate populations’ boundaries and sizes, and to establish population dynamics. This study includes a complete floristic survey at the B. patula locations of, Desembarcadouro islet (DI) with 12 (DI1–DI12) sampling sites, and Chao islet (CI) with 3 (CI1–CI3). Several Biodiversity indices were calculated for these locations. Plot DI3 exhibited the highest values for Corrected Evenness (E′ = 0.77 ± 0.07), Shannon–Weaver Diversity Index (H′ = 2.48 ± 0.12), and Hill’s Index (N2 = 4.47 ± 0.72), with a total sum of 306 individuals of B. patula. The demographic status of B. patula populations in DI and CI was determined yearly between 2014 and 2018. The results show an average population size of 16,906 and 2917 plants, respectively. These data will be used for the establishment of a protocol to monitor and manage a genetic reserve for B. patula and other CWR. By doing so, our work will contribute to the implementation of the European genetic reserve network. |
| Databáze: | OpenAIRE |
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