Hereby are presented the results of a detailed research carried out on Dianthus morisianus Vals. (Caryophyllaceae), species included in the priority list of the 10 most endangered taxa in Sardinia. This species is particularly threatened by its habitat reduction and fragmentation, mainly due to anthropic activities and to intrinsic factors related to its reproductive biology. For these reasons, it is considered to be Critically Endangered according to the IUCN protocols. Despite the many threats which insist on the population, there still have not been taken any conservation actions or protection measures. The aim of this study was to increase knowledge on the biology, ecology, structure and evolutionary trends of such population, in order to identify appropriate conservation strategies. The study has therefore provided the integration of in situ analysis concerning the distribution of the species and its population and the ecological aspects and ex situ analysis concerning the reproductive biology of such species and its germination ecophysiology. The data obtained confirm the critical situation of D. morisianus due to anthropic threats and to its reproductive difficulties. Therefore, it is vital to pursue and implement studies to identify effective conservation actions for the species.
Analisi dello stato di conservazione di Dianthus morisianus Vals., endemita esclusivo dell’ecosistema dunale di Portixeddu (Sardegna sudoccidentale)
COGONI, DONATELLA;FENU, GIUSEPPE;BACCHETTA, GIANLUIGI
2010-01-01
Abstract
Hereby are presented the results of a detailed research carried out on Dianthus morisianus Vals. (Caryophyllaceae), species included in the priority list of the 10 most endangered taxa in Sardinia. This species is particularly threatened by its habitat reduction and fragmentation, mainly due to anthropic activities and to intrinsic factors related to its reproductive biology. For these reasons, it is considered to be Critically Endangered according to the IUCN protocols. Despite the many threats which insist on the population, there still have not been taken any conservation actions or protection measures. The aim of this study was to increase knowledge on the biology, ecology, structure and evolutionary trends of such population, in order to identify appropriate conservation strategies. The study has therefore provided the integration of in situ analysis concerning the distribution of the species and its population and the ecological aspects and ex situ analysis concerning the reproductive biology of such species and its germination ecophysiology. The data obtained confirm the critical situation of D. morisianus due to anthropic threats and to its reproductive difficulties. Therefore, it is vital to pursue and implement studies to identify effective conservation actions for the species.
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