Comparing the flowering phenology between the only natural and a translocated population of <i>Dianthus morisianus</i>

Nebot, Anna; Cogoni, Donatella; Fenu, Giuseppe; Bacchetta, Gianluigi

doi:10.1080/23818107.2018.1505546

Cited by 2 publications

(4 citation statements)

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“…Plants from translocated population have a reproductive output similar to the natural one. It consists of numerous offspring (more than 50% were tested; Fenu et al, 2016) that are able to flower and produce fruits as previously observed (Nebot et al, 2018). Plants are also bigger than the natural ones.…”

Section: Discussionmentioning

confidence: 79%

“…In Nebot et al (2018) high floral display and flowering synchrony in the translocation were observed. These flowering characteristics may highly contribute to attract pollinators (Grindeland et al, 2005) and therefore facilitating the reproductive success of D. morisianus.…”

Section: Discussionmentioning

confidence: 96%

“…It is a self-compatible species, with mixed mating system (Nebot et al, 2016). The flowering season is from early May to late June, and ripe fruits can be found during June-July (Nebot et al, 2018). Seedling emergence represents the most critical stage for the long-term persistence of D. morisianus, while the lack of a persistent soil seed bank represents a hazard to the persistence of the natural population (Cogoni et al, 2012).…”

Section: Plant Speciesmentioning

confidence: 99%

“…The aims of this study were to test the success of the first translocated population, improve the knowledge on the reproductive system of D. morisianus and its reproductive success to identify the potential biological factors that threaten this plant species. Previous studies analysed some characteristics of the breeding system of this species on ex situ cultivated plants (Nebot et al, 2016) and the flowering phenology (Nebot et al, 2018). However, the ability to autonomous selfpollination and the pollination vectors dependence have never been investigated.…”

Section: Introductionmentioning

confidence: 99%

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Breeding system and inbreeding depression in a translocated population of the endangered plant Dianthus morisianus (Caryophyllaceae)

Nebot

Cogoni

Fenu

et al. 2020

Flora

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Know the breeding system of endemic plants is important to design conservation strategies. Translocations are actions to improve the survival prospects of the species, but nowadays there are only a few studies that analyse their success and make a comparison between translocation and the natural populations. Dianthus morisianus is a threatened narrow endemic plant species growing on sand dunes in SW Sardinia (Italy). The objective of this study was to assess the breeding system, the presence of inbreeding depression and pollen limitation, as well as the success of the plant translocation. All these results were compared with those from the single natural population. The breeding system was tested through five pollination treatments and the reproductive success was analysed by the fruit set, seed set, seed weight, germination and mortality rate. The translocated population behaved like the natural one on fruit and seed formation. Autonomous self-pollination was lower than the other treatments regarding fruit set and seed/ovule ratio in the two studied populations. The species is self-compatible and presents partial self-fertility. The selfing rate was higher in the translocated population and the inbreeding depression presented low values for the natural population, while the translocated population presented negative values. Neither of the populations suffered pollen limitation. The species did not present reproductive problems and it is pollinator dependent. Moreover, the translocated population demonstrated high success after five years, as an increase of the population area and new recruited plants was observed; the offspring were able to flower, fruiting and reproduce. This translocation success increases the survival prospects of the species.

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Section: Discussionmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 96%