Pollinator shifts are considered to drive floral trait evolution, yet little is still known about the modifications of petal epidermal surface at a biogeographic region scale. Here we investigated how independent from insects passerine birds in Macaronesian Islands consistently modified this (i.e. absence papillate cells). Using current phylogenies and extensive evidence field observations, selected total 81 plant species subspecies for microscopy comparative analysis, including 19 23...

A bird pollination syndrome exists in the Canary Islands archipelago across independent plant lineages despite absence of specialist birds. The efficiency current floral visitors remains unknown for many species this being a fundamental factor testing hypotheses about origin syndrome. Here, we studied components paleoendemic Navaea phoenicea, exhibiting conspicuous anatomical modifications associated with pollination.We measured (PE) foraging on flowers. quantitative were visitation...

Despite the importance of North African region in complex climatic and geological history western Mediterranean basin, level sampling this biogeographical phylogeographical studies is much lower than European region. Aiming to contribute filling gap, evolutionary Lavatera maritima reconstructed using sequence data from three plastid DNA regions (trnD-trnT, trnG, matK), species distribution modelling divergence time analysis. Of nine haplotypes identified, six occur Africa four are exclusive...

Abstract Aim Differentiation of island lineages from mainland relatives and radiation after initial colonization are two important processes generating diversity. Both these influenced by dynamics contemporary connections between species their source populations. The classic progression rule model, that is dispersal to older islands subsequently younger islands, can be considered a null hypothesis, particularly for geographically aligned perpendicular the coast with ages inversely...

Alpine oceanic ecosystems are considered amongst the most ephemeral and restricted habitats, with a biota highly vulnerable to climate changes disturbances. As an example of alpine insular endemic, past future population genetic structure diversity, distribution Viola cheiranthifolia (Violaceae), endemic Tenerife (Canary Islands), were estimated. The main goals predict this plant under change, assist in actions for its conservation.To perform analysis, 14 specific microsatellite markers...

Abstract Premise The diversification of island flora has been widely studied. However, the role environmental niches in insular radiation processes less investigated. We combined population genetic analyses with species distribution modelling to clarify relationships, patterns, niche requirements, and conservation Thesium sect. Kunkeliella , a clade rare hemiparasitic plants endemic Canaries. Methods studied three extant new taxon from La Palma Island. developed 12 microsatellites performed...

The translocation of individuals or the reinforcement populations are measures in genetic rescue endangered species. Although it can be controversial to decide which and how many must reintroduced, benefit from reinforcements. Sambucus palmensis is a critically endemic Canary Islands. During past 30 years, Garajonay National Park (La Gomera) has carried out an intensive program translocations using cuttings, due low germination rates seeds. To assess effect restorations on population...

Background: Climate change may increase the risk of biological invasions. However, current knowledge this interaction is limited.Aims: We aimed to quantify (1) effect climate on potential distribution invasive plant species in Spain, (2) importance area origin such and (3) vulnerability different biogeographic provinces future changes climatic suitability for invaders.Methods: applied six methods modelling assess variation climatically suitable areas 40 alien plants. developed a Potential...

Integration of unexpected discoveries about charismatic species can disrupt their well-established recovery plans, particularly when this requires coordinate actions among the different governments responsible. The Critically Endangered Coronopus navasii (Brassicaceae) was considered a restricted endemism to few Mediterranean temporary ponds in high mountain range Southeast Spain, until new group populations were discovered 500 km North 2006. Ten years after finding, its management has not...

The increase of the localities Himantoglossum robertianum in Community Madrid region last years is studied. We have visited new discovered populations and characterized their habitats, finding little agreement with basophilic preferences attributed to orchid. A model potential distribution taxon has been elaborated showing southern river basins as areas greatest suitability. lack data prevents from concluding that registered area corresponds a climatic or land-use change region, but work...

Thesium sect. Kunkeliella es un grupo de endemismos canarios distribución restringida y con alto grado amenaza, una las especies descritas hasta la fecha ya considerada extinta. El descubrimiento nuevo taxón en La Palma nos ha llevado a caracterizar genéticamente Canarias tanto nivel intra- como interespecífico, vez que revisar características morfológicas del grupo. Todo ello contribuido describir considerar el especie diferente denominada palmense conocer relaciones genéticas existentes...