Global and Regional IUCN Red List Assessments: 1

Orsenigo, Simone; Bacchetta, Gianluigi; Calevo, Jacopo; Castello, Miris; Cogoni, Donatella; Gennai, Matilde; Licht, Wolfang; Montagnani, Chiara; Perrino, Enrico Vito; Pinna, Maria Silvia; Silletti, Giuseppe; Véla, Errol; Viciani, Daniele; Vidali, M.; Wagensommer, Robert P.; Zappa, Elena; Fenu, Giuseppe

doi:10.3897/italianbotanist.1.8647

Cited by 9 publications

(6 citation statements)

References 12 publications

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“…It occurs in an extremely restricted range (convex hull of about 10 km 2 ) and is found in unstable and dynamic habitats characterized by incoherent accumulations of coarse gravel in particularly steep mountain screes (Giupponi and Giorgi 2019). It usually occurs in the alpine and subalpine altitudinal planes and exclusively on calcareous substrates (Orsenigo et al 2016). The plant is about 6-12 cm tall, each stalk usually hosts 3-6 (rarely 10) single flowers, and the flowering phenology lasts from around mid-June to mid-July, with some individuals flowering earlier or later in the season.…”

Section: Methodsmentioning

confidence: 99%

Investigating pollination strategies in disturbed habitats: the case of the narrow-endemic toadflax Linaria tonzigii (Plantaginaceae) on mountain screes

et al. 2021

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Plant mating systems may reflect an adaptation to a habitat type, with self-pollination being potentially common in unstable and disturbed conditions. We investigated the reproductive ecology of an Alpine, narrow-range toadflax, Linaria tonzigii Lona (Plantaginaceae), occurring in steep and dynamic mountain screes. We explored self-compatibility and spontaneous autogamy, seed viability, daily nectar production, pollinator behaviour and pollen transfer in wild populations, using hand pollination treatments, quantification of nectar volume, viability Tetrazolium assay, active pollinator sampling and video recordings, and UV-bright dust for pollen substitution. After ex novo sequencing of several genetic regions of L. tonzigii, we performed a multi-marker phylogenetic analysis of 140 Linaria species and tracked the occurrence of the self-compatibility trait. Our results showed that this species is self-compatible, pollinated mostly via spontaneous autogamy and pollinator-mediated geitonogamy, and self-pollinated seeds are as viable as cross-pollinated ones. Selfing could be due to pollinator rarity because, despite the studied species providing a high nectar volume, wild bees, moths and small beetles infrequently visited its flowers in the sparsely vegetated scree slopes. In addition, a preliminary survey showed a low genetic haplotype diversity in the study plant. Moreover, the phylogeny shows that self-compatibility is scattered in the tree, suggesting the adaptive nature of this reproductive trait in the genus Linaria. This study supports for theories that high prevalence of selfing is an adaptation to environments unfavourable for cross-pollination, and particularly where pollinators are rare, such as in perturbed, poorly vegetated high-elevation habitats.

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Section: Methodsmentioning

confidence: 99%

Investigating pollination strategies in disturbed habitats: the case of the narrow-endemic toadflax Linaria tonzigii (Plantaginaceae) on mountain screes

et al. 2021

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“…Nowadays, the publication of new plant species frequently includes an assessment of their status based on the IUCN criteria. Although some Italian endemic taxa have been recently assessed against the IUCN criteria (e.g., Foggi et al, 2014;Rossi et al, 2016;Orsenigo et al, 2016Orsenigo et al, , 2017Fenu et al, 2016Fenu et al, , 2017a, a comprehensive Red List for the Italian endemic vascular plants is still lacking. The evaluation of the extinction risk of all the Italian endemic plants would provide a powerful tool for driving further conservation steps for these unique organisms.…”

Section: Introductionmentioning

confidence: 99%

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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143

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“…In the end, we want to highlight the conservation relevance of plant communities with Cirsium alpislunae. As already done for other endemic Tuscan and Italian species (Foggi et al, 2015;Orsenigo et al, 2016;Fenu et al, 2016Fenu et al, , 2017 this thistle was already globally assessed with the IUCN methods and found to have a Near Threatened (NT) status (Gennai et al, 2015). Laserpitio latifolii-Cirsietum alpis-lunae conenoses are also important, because they too are strictly endemic and because they can be attributed to a Natura 2000 habitat type of European conservation interest, i.e.…”

Section: Resultsmentioning

confidence: 89%

A new plant community with the strictly endemic "Cirsium alpis-lunae" (Asteraceae) in the Northern Apennines (Italy) and considerations on the alliances "Senecionion samniti" and "Adenostylion alpinae"

Viciani¹,

Lazzaro²,

Gonnelli³

et al. 2019

Mediterr. Bot.

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We conducted a phytosociological study of the particular coenoses with presence of Cirsium alpis-lunae, a strictly endemic species living in marly-arenaceous montane screes of the Apennines between Tuscany, Emilia-Romagna and Marche. We surveyed all the reported locations and analyzed the coenological and ecological features of the communities by means of standard statistical methods, describing a new association, Laserpitio latifolii-Cirsietum alpis-lunae. We attributed the new association to Mulgedio-Aconitetea, but we noted in the literature some nomenclatural misinterpretations concerning the syntaxonomic treatment of this Apennine vegetation at the order and alliance level. We found that Adenostylion alpinae is the most suitable alliance to encompass Laserpitio latifolii-Cirsietum alpis-lunae and it cannot be considered a synonym of Senecionion samniti. Senecionion samniti was here lectotypified, and seems to be closer to Molinio-Arrhenetheretea than to Mulgedio-Aconitetea.

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Global and Regional IUCN Red List Assessments: 1

Cited by 9 publications

References 12 publications

Investigating pollination strategies in disturbed habitats: the case of the narrow-endemic toadflax Linaria tonzigii (Plantaginaceae) on mountain screes

Investigating pollination strategies in disturbed habitats: the case of the narrow-endemic toadflax Linaria tonzigii (Plantaginaceae) on mountain screes

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

A new plant community with the strictly endemic "Cirsium alpis-lunae" (Asteraceae) in the Northern Apennines (Italy) and considerations on the alliances "Senecionion samniti" and "Adenostylion alpinae"

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