Search results for "Endemism"
showing 10 items of 206 documents
Some species of the southeastern Italian Miocene giant galericine Deinogalerix (Mammalia, Eulipotyphla) revisited, with review of the genus
2018
• Revision of Deinogalerix remains from the Terre Rosse of Gargano stored at the University of Florence. • The material was assigned mainly to D. freudenthali, D. intermedius and D. minor. • The material improves our knowledge of the small and primitive species D. freudenthali. • The study confirms the validity of the lineages D. minor-D. brevirostris and D. intermedius-D. koenigswaldi.
Dichrorampha dinarica, new species, a century of confusion in European lepidopterology (Lepidoptera: Tortricidae) resolved by combining morphology an…
2012
Dichrorampha dinarica, new species, is described from the Dinaric mountains (Macedonia, Bosnia and Herzegovina). The newspecies was formerly confused with D. ligulana (Herrich-Schäffer, 1851) from the Alps and D. rilana Drenowsky, 1909 fromthe Rila mountains (Bulgaria). Therefore, a re-description of D. rilana is provided based on topotypical specimens. The diag-nostic morphological characters of the involved species, supported by significant divergence of the mtDNA barcode (COI fragment of 658 bp), are discussed in detail.
The Centaurea parlatoris complex (Asteraceae): taxonomic checklist and typifications
2021
A taxonomic account of the Centaurea parlatoris complex (Asteraceae), endemic to Sicily, is presented. This complex includes six taxa, three described in the 19th century (C. parlatoris, C. parlatoris var. tomentosa and C. parlatoris var. virescens) and three recently described (C. sicana, C. giardinae and C. heywoodiana). Starting from the designation of the types for the oldest plant names that have not been typified yet, taxonomic considerations are formulated and C. parlatoris var. virescens is elevated to the rank of species. An identification key and a distribution map complete this account.
What is a tree in the Mediterranean Basin hotspot? A critical analysis
2019
Background: Tree species represent 20% of the vascular plant species worldwide and they play a crucial role in the global functioning of the biosphere. The Mediterranean Basin is one of the 36 world biodiversity hotspots, and it is estimated that forests covered 82% of the landscape before the first human impacts, thousands of years ago. However, the spatial distribution of the Mediterranean biodiversity is still imperfectly known, and a focus on tree species constitutes a key issue for understanding forest functioning and develop conservation strategies. Methods: We provide the first comprehensive checklist of all native tree taxa (species and subspecies) present in the Mediterranean-Europ…
Teucrium ronnigeri Sennen (Lamiaceae) y sus variaciones
2009
Se aportan datos sobre Teucrium ronnigeri Sennen, nombre prioritario para el endemismo iberolevantino que ha venido denominándose T. aureum subsp. latifolium o T. homotrichum. Se discute su variabilidad morfológica a lo largo de su área de distribución, sobre todo en lo que afecta a la coloración general de la planta, anchura de las hojas superiores, color de la corola y tamaño de los cálices y glomérulos florales. Pese a la enorme variación observada, se acepta que las poblaciones del extremo meridional de Alicante y áreas limítrofes con Murcia, constituyen una entidad particular, para la que se propone la nueva combinación T. ronnigeri subsp. lagunae, la cual se diferencia de la típica, T…
Hieracium jurassicum subsp. serrapretense (Asteraceae), a new hawkweed taxon from the pollino national park (Southern Italy)
2018
A new hawkweed taxon endemic to the Pollino National Park (southern Italy), Hieracium jurassicum subsp. serrapretense, is described and illustrated. Information on its morphology, distribution, ecology and taxonomic relationship is provided.
Pérdida del área de ocupación y del tamaño de la población de Vella lucentina (Cruciferae)
2009
Se presenta nueva información sobre los tamaños de población de Vella lucentina, endemismo alicantino propio de matorrales esteparios calcícolas, bajo bioclima termomediterráneo semiárido. A partir de muestreos de campo durante la época de floración (abril a junio de 2008), se han delimitado en un SIG los polígonos envolventes de los tres núcleos de población conocidos. Se ha localizado y delimitado un nuevo núcleo en la Serra dels Castellans (Agost). Se han estimado los efectivos poblacionales en cada una de las subpoblaciones. La superficie total de ocupación actual es de 351,52 ha. El tamaño de población, según criterios de la UICN (individuos maduros), puede estimarse en 385.671 individ…
Conservation of Ptilostemon greuteri (Asteraceae), an endemic climate relict from Sicily (Italy): state of knowledge after the discovery of a second …
2022
Ptilostemon greuteri is one of the most endangered and poorly studied woody vascular plant species of the Mediterranean Basin, endemic to Sicily (Italy). Several peculiar traits confer to P. greuteri a character of uniqueness and an enigmatic attractiveness. In fact, at first glimpse the largest individuals of this species remind the most remarkable and peculiar cases of herbaceous genera (e.g., Echium, Senecio) turned woody on insular or insular-like mountain ecosystems. Following the discovery of a second population of this rare species, a project aiming at the study and conservation of P. greuteri was set up. We present here updated information on the distribution, conservation status, b…
Groundwater biodiversity in Europe. In: Freshwater Biology Special Issue, Assessing and Conserving Groundwater Biodiversity (Eds. J. Gibert & D.C. Cu…
2009
International audience
Phenotypic and genetic variability in Forest thrush, Turdus lherminieri at different scales
2012
Understanding the mechanisms underlying population structure is a crucial issue in evolutionary biology and ecology. Identifying the processes driving biodiversity is also of prime interest to draw up guidelines for population management and conservation planning. Level of differentiation depends on a subtle balance between gene flow, genetic drift and natural selection and insight into the relative contribution of these factors can be provided by spatial and temporal patterns of intra-specific phenotypic and genetic variations. Differentiation has mainly been studied in insular systems because i) islands give ideal framework to study divergence in species ii) islands enclosed endemic fauna…