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Article

Importance of Plants with Extremely Small Populations (PSESPs) in Endemic-Rich Areas, Elements Often Forgotten in Conservation Strategies

by
Donatella Cogoni
1,
Giuseppe Fenu
2,*,
Carlo Dessì
3,
Angela Deidda
4,
Cesario Giotta
5,
Marcello Piccitto
6 and
Gianluigi Bacchetta
1
1
Centro Conservazione Biodiversità (CCB), Dipartimento di Scienze della Vita e dell’Ambiente, Università degli Studi di Cagliari, Viale Sant’Ignazio da Laconi 13, 09123 Cagliari, Italy
2
Dipartimento di Scienze della Vita e dell’Ambiente, Università degli Studi di Cagliari, Viale Sant’Ignazio da Laconi 13, 09123 Cagliari, Italy
3
Independent Researcher, Vico Sant’ Ignazio 22, 09090 Laconi, Italy
4
Independent Researcher, Via Frumini 13, 09090 Laconi, Italy
5
Independent Researcher, Viale Marconi 82, 08045 Lanusei, Italy
6
Istituto d’Istruzione Superiore Leonardo da Vinci, Via Leonardo da Vinci1, 08045 Lanusei, Italy
*
Author to whom correspondence should be addressed.
Plants 2021, 10(8), 1504; https://doi.org/10.3390/plants10081504
Submission received: 9 June 2021 / Revised: 14 July 2021 / Accepted: 18 July 2021 / Published: 22 July 2021
(This article belongs to the Special Issue Ecology and Evolution of Plants in the Mediterranean Basin: From Knowledge to Conservation)
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Abstract

The distribution of the threatened fern Ophioglossum vulgatum L., a plant with extremely small populations (PSESPs) in Sardinia, is characterized by small disjunct populations with only a few individuals, and little is known about its status in the wild. To provide information for the conservation of O. vulgatum and with the aim to develop an in situ conservation strategy, we investigated its distribution, population size, and habitat. Field surveys confirmed that the species grows in only five localities. Two representative populations were selected for this study (Funtanamela and Gedili), and in each population, all plants were mapped and monitored monthly from April to August over an 8-year period. During the study, the populations had a very low number of reproductive plants and the populations appeared to be in decline, with the total number of plants per population slightly decreased in Gedili while a sharp reduction was recorded in Funtanamela due to wild boar threat. A fence was built in order to protect the site from further damage, but no noticeable signals of recovery were observed. The most urgent conservation requirement for this species is to preserve the threatened habitat of the remnant populations. Further field surveys and research are also required for an improved understanding of the species’ status.
Keywords: evolutionary potential loss; knowledge gaps; Mediterranean flora; monitoring activities; Ophioglossum vulgatum L.; plant conservation; Sardinia evolutionary potential loss; knowledge gaps; Mediterranean flora; monitoring activities; Ophioglossum vulgatum L.; plant conservation; Sardinia

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MDPI and ACS Style

Cogoni, D.; Fenu, G.; Dessì, C.; Deidda, A.; Giotta, C.; Piccitto, M.; Bacchetta, G. Importance of Plants with Extremely Small Populations (PSESPs) in Endemic-Rich Areas, Elements Often Forgotten in Conservation Strategies. Plants 2021, 10, 1504. https://doi.org/10.3390/plants10081504

AMA Style

Cogoni D, Fenu G, Dessì C, Deidda A, Giotta C, Piccitto M, Bacchetta G. Importance of Plants with Extremely Small Populations (PSESPs) in Endemic-Rich Areas, Elements Often Forgotten in Conservation Strategies. Plants. 2021; 10(8):1504. https://doi.org/10.3390/plants10081504

Chicago/Turabian Style

Cogoni, Donatella, Giuseppe Fenu, Carlo Dessì, Angela Deidda, Cesario Giotta, Marcello Piccitto, and Gianluigi Bacchetta. 2021. "Importance of Plants with Extremely Small Populations (PSESPs) in Endemic-Rich Areas, Elements Often Forgotten in Conservation Strategies" Plants 10, no. 8: 1504. https://doi.org/10.3390/plants10081504

APA Style

Cogoni, D., Fenu, G., Dessì, C., Deidda, A., Giotta, C., Piccitto, M., & Bacchetta, G. (2021). Importance of Plants with Extremely Small Populations (PSESPs) in Endemic-Rich Areas, Elements Often Forgotten in Conservation Strategies. Plants, 10(8), 1504. https://doi.org/10.3390/plants10081504

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