Global and Regional IUCN Red List Assessments: 4

Fenu, Giuseppe; Ferretti, Giulio; Gennai, Matilde; Cano, Agustín Lahora; Mendoza-Fernández, Antonio J.; Poveda, Juan Francisco Mota; Jesús, Robles,; Serra, Lluí­s; Schwarzer, Hedwig; Sánchez-Gómez, Pedro; Viciani, Daniele; Orsenigo, Simone

doi:10.3897/ib.4.21595

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…The number of adult individuals was generally low, with a few exceptions being under the minimum threshold of 20 plants in 11 populations, considered the quasi-extinction threshold generally adopted in demographic studies to help minimise the demographic stochasticity associated with a small population size [ 3 , 22 ]. This situation makes some populations prone to local extirpation in the near future, as well as for a single environmental stochastic event [ 23 , 24 , 69 , 73 ]. This finding was also supported and enhanced in four populations by the absence of recruitment; all of our data indicated a probable local extirpation of this species in a short time period.…”

Section: Discussionmentioning

confidence: 99%

Persistence of the Strictly Endemic Plants of Forest Margins: The Case of Cirsium alpis-lunae in the Northern Apennines (Italy)

Fenu

Lazzaro

Lastrucci

et al. 2022

Plants

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Narrow endemic plants constitute a pivotal group for conservation, being often reduced to a small contingent of individuals and frequently threatened. However, effective conservation actions require reliable basic information about distribution range, ecological requirements, and population traits. Nevertheless, such knowledge results are incomplete or even completely missing for some neglected or recently described plants, such as Cirsium alpis-lunae, a thistle exclusive to the N-Apennines (Italy). To fill this gap, all sites where C. alpis-lunae grow were monitored, and data on the site and population traits were collected. Our results indicated that this plant is restricted to 16 scattered sites, varied in surface area and number of individuals. Reproductive and juvenile plants showed to be affected by roughly the same variables, in particular the surface of the site, the slope aspect, and the canopy cover. The narrow ecological niche of C. alpis-lunae was mainly determined by the canopy cover, and where coverage increases, the number of individuals decreases. The individuals only grow at forest edges, where the peculiar ecological conditions are limiting factors for the development of forestry cover; some other factors (i.e., high inclination and instability of the substrate) contribute to limiting the development of forestry vegetation and guarantee the persistence of these ecotones. Despite the great difficulties in accessing the sites where this species grows, this study presents, for the first time, a complete picture of the C. alpis-lunae population and yielded important data to identify effective conservation measures.

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Section: Discussionmentioning

confidence: 99%

Persistence of the Strictly Endemic Plants of Forest Margins: The Case of Cirsium alpis-lunae in the Northern Apennines (Italy)

Fenu

Lazzaro

Lastrucci

et al. 2022

Plants

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“…Urban expansion of cities, with the consequent construction of infrastructure (E01, F01) is one of the main threats as it is a factor in the fragmentation and change of natural and semi-natural habitats [68][69][70], as highlighted by Spampinato et al [71,72]. Urbanisation has already, in the past, caused the extinction of several micro-populations (19,20,21) of the species known from the literature (Figure 2) [39]. Reforestations carried out mainly in the 1950s (B01) [73,74] contributed to the extinction of other populations (22,23) reported in the literature (Figure 2) [40].…”

Section: Discussionmentioning

confidence: 99%

“…As a consequence of climate change, a distributional shift of plant species to higher altitudes and latitudes is expected. This will be almost impossible for rare and/or endemic taxa, which are tightly bound to a narrow ecological niche and exclusive to a specific range, which is very often fragmented [14,[17][18][19][20]. In addition, a further threat is posed by alien species, which, finding favourable temperatures, rapidly expand their range, competing with native species and causing the loss of habitats that preserve rare and/or endemic species [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Population Structure and Dynamic of Endemic Salvia ceratophylloides Ard. (Lamiaceae)

et al. 2022

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Understanding how changes of any origin interact with the structure and survival of entire populations is very important for the protection and conservation of threatened, rare and/or endemic species. In this study, structure and population dynamics of Salvia ceratophylloides Ard., a precious endemic species, belonging to the subgenus Sclarea (Moench) Benth., section Plethiosphace Benth. (Lamiaceae) exclusive to the suburban environments of Reggio Calabria (Southern Italy), was analysed. Interactions between this species and its different growth habitats were examined. Moreover, the disturbance factors which directly affect the demographic viability of the species, influencing its growth, reproduction and distribution in its distribution area were identified. From 2019 to 2021, a census by counting individuals of all the known stations, recorded according to a specific protocol, was carried out. The recorded data were statistically analysed and compared with those of the phytosociological surveys carried out using the Braun-Blanquet method and summarised in phytosociological classes, in accordance with the hierarchical floristic classification system of vascular plant communities, accepted at national and European levels. The structure of the different populations was also related to the different threat factors that afflict S. ceratophylloides. It was observed that the most structured populations of S. ceratophylloides were found in natural and semi-natural environments where the anthropogenic disturbance was minor, while populations with an irregular structure were found in sites exposed to disturbances of various origins. The different phytosociological classes do not interact directly on population structure. The most important factors affecting structure and distribution are disturbances of various origins, in particular anthropogenic and phytosanitary disturbances. In order to keep populations balanced and stable over time, it would be useful to adopt conservation measures for the species and the habitat in which they live, with practical solutions for the following: (a) to limit infestations by insects that parasitize stems and seeds; (b) to prevent mowing, fires, grazing and the introduction of invasive alien species.

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Red Listing plants under full national responsibility: Extinction risk and threats in the vascular flora endemic to Italy

Orsenigo

Montagnani

Fenu

et al. 2018

Biological Conservation

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Global and Regional IUCN Red List Assessments: 4

Cited by 5 publications

References 5 publications

Persistence of the Strictly Endemic Plants of Forest Margins: The Case of Cirsium alpis-lunae in the Northern Apennines (Italy)

Persistence of the Strictly Endemic Plants of Forest Margins: The Case of Cirsium alpis-lunae in the Northern Apennines (Italy)

Analysis of the Population Structure and Dynamic of Endemic Salvia ceratophylloides Ard. (Lamiaceae)

Red Listing plants under full national responsibility: Extinction risk and threats in the vascular flora endemic to Italy

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