Carte d’état-major de la Corse (1864-1866). Occupation du sol et première analyse des forêts anciennes

Panaïotis, Christophe; Barthet, Thomas; Vallauri, Daniel; Hugot, Laëtitia; Gauberville, Christian; Reymann, Julie; O’Deye-Guizien, Kévin; Delbosc, Pauline

doi:10.3406/ecmed.2017.2005

Cited by 3 publications

(4 citation statements)

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“…Since the beginning of the twentieth century, land-abandonment has induced a global increase of shrublands and forested areas. The afforestation rate reached only 17.6% in 1866 (i.e., 153,775 ha) against 58% currently (i.e., 507,000 ha), i.e., an increase of 3.3 times in the surface area of Corsican forests over a period of 150 years (Panaïotis et al, 2017). But this increase may be locally counterbalanced by frequent illegal fires often linked to pastoral practices.…”

Section: Main Current Vegetation Dynamics On Large and Medium Islandsmentioning

confidence: 99%

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Plant Biogeography and Vegetation Patterns of the Mediterranean Islands

Mèdail

2021

Bot. Rev.

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With about 11,100 islands and islets of which ca. 250 are regularly inhabited by human, the Mediterranean Sea represents one of the regions of the world with the most islands and archipelagos. These numerous islands represent a significant component of the Mediterranean biodiversity, notably with the presence of range-restricted species and peculiar vegetation types. The aim of this review is to provide a balanced view of this highly diverse phytoecological heritage, but also taking into account the medium sized islands and the smaller ones that have not been highlighted so far. Mediterranean islands constitute both a museum for ancient lineages (paleoendemic taxa) and cradle for recent plant diversification. The complex historical biogeography (paleogeographical events of the Neogene, Messinian salinity crisis, climatic and eustatic changes of the Pleistocene, influence of glacial events) has profoundly influenced the current patterns of plant diversity. These insular landscapes were also precociously impacted by prehistoric man, possibly by Neanderthals. Among the 157 large Mediterranean islands (i.e. with a surface area exceeding 10 km 2 ), 49 have a surface greater than 100 km 2 .The main patterns anddynamics of vegetationon the largests islands (Balearic Islands, Corsica, Sardinia, Sicily, Croatian islands, Greek islands, Crete, Cyprus) are summarized. Then, the specific ecosystem functioning (disturbance, plant-animal interac-tions) and vegetation structures of the small Mediterranean islands (i.e. a surface area less than 10 km 2 or 1000 ha), are highlighted by evoking successively the small rocky islands, the volcanic ones, and the sandy and flat islands. Owing to their uniqueness and fragility, Mediterranean islands urgently need some integrated and ambitious conservation planning, aiming at the long-term preservation of their outstanding biotic and cultural heritage.

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Section: Main Current Vegetation Dynamics On Large and Medium Islandsmentioning

confidence: 99%

“…With a forest cover of 58%, Corsica is the most wooded Mediterranean island (Fig. 9b) inasmuch as forests represents 507,000 ha of which 396,000 ha correspond to closed forests, with a recovery rate above 40% (Panaïotis et al, 2017).…”

Section: Corsicamentioning

confidence: 99%

Plant Biogeography and Vegetation Patterns of the Mediterranean Islands

Mèdail

2021

Bot. Rev.

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“…507,000 ha), i.e. an increase of 3.3 in the surface of Corsican forests over a period of 150 years (Panaïotis et al 2015). But this increase can be locally counterbalanced by frequent illegal fires, often linked to pastoral practices.…”

Section: Widespread Human Impacts and Land Use Changesmentioning

confidence: 99%

The specific vulnerability of plant biodiversity and vegetation on Mediterranean islands in the face of global change

2017

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To cite this version:Frederic Medail. The specific vulnerability of plant biodiversity and vegetation on Mediterranean islands in the face of global change.Abstract The numerous Mediterranean islands ([10,000) are very important from a biodiversity point of view, both in term of plant species (numerous endemics, presence of 'climate relicts') and of ecosystems' assemblage. These patterns can be explained by complex interactions between a highly heterogeneous historical biogeography and ecological processes related to diverse island conditions. Furthermore, most of the ups and downs of this biodiversity were closely linked with human pressures which have changed many times through the long socio-ecological history of these island landscapes since the Neolithic period. At present, insular plant biodiversity and rural landscapes are threatened by diverse global environmental changes related to urbanization, habitat fragmentation, unsustainable tourism and other practices (e.g. overgrazing, forest fires), and by other more recent drivers such as climate warming and aridification, sea-level rise and biological invasions. Some of these impacts will be exacerbated on islands because of no (or highly limited) adjacent areas of expansion, notably on the smallest ones (i.e. size \ ca. 1000 ha). With regards to the biome crisis facing the Mediterranean basin and induced by human activities, islands constitute key ecological systems and 'current refugia' to ensure the long-term preservation of coastal plant biodiversity. They also represent fascinating ecological systems to disentangle the role of environmental versus human pressures on spatially simplified communities of the Mediterranean coastal areas. Future detailed studies of these 'natural island microcosms' could greatly improve our knowledge of the functional and evolutionary processes induced by rapid environmental changes in this region.

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“…old-growth forests with a subnatural character, cf. Panaïotis et al, 2017) and of high botanical interest, were particularly sought after. In addition, we looked for sectors that had not already benefited from extensive entomological surveys (e.g., we did not select the Vizzavona sector, one of the most accessible and studied sites), and instead favoured those that lacked data (e.g., Capicorsu), based on spatial preliminary analyses such as those presented in figures 1-2.…”

Section: Sites and Habitats Studiedmentioning

confidence: 99%

Our Planet Reviewed in Corsica 2019-2021: a large-scale survey of neglected biodiversity on a Mediterranean island

Touroult,

Ichter,

Pollet

et al. 2023

Bull. Soc. entomol. Fr.

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From 2019 to 2021, scientific field campaigns have been organised in Corsica by the Muséum national d’Histoire naturelle, the Office français de la biodiversité and the Collectivité de Corse as part of the “Our Planet Reviewed” naturalist exploration programme. This paper presents the context, the state of biogeographical and taxonomic knowledge prior to our expeditions, and the objectives, the methods and the first results obtained. The aim was to establish a modern survey of the species present in a selection of sites representative of different Corsican ecosystems, and to further develop the natural history collections through depositing new specimens and species with associated standard DNA barcodes, useful for their identification. Over a period of three years, nineteen sites were surveyed with a semi-standardised protocol and a large-scale trapping scheme was organised in three of these. Sampling efforts focused on forest habitats at higher altitudes and on coastal dune and lowland marshland habitats. A vast array of methods was used to collect invertebrates, with a specific effort on flightinterception traps and pan traps. A total of 34 experts participated to the field surveys and more than 80 further contributed to the study of the specimens. Occurrence data are available in the Inventaire national du patrimoine naturel (http://www.inpn.fr) and, for specimens processed through DNA barcoding, specimen and DNA sequencing data will be accessible in the Barcode of Life datasystems (BOLD : http://www.boldsystems.org). In early 2023, the assembled datasets included 31,100 occurrence data for 3,900 taxa of terrestrial arthropods, representing a 53% increase in publicly available data for the island. More than 6,800 DNA barcode sequences have been produced for arthropods, representing a 14-fold increase in available sequences of Corsican insects compared to those available before the start of the programme. So far, these efforts resulted in producing the first Corsican records for 148 species and in the description of 12 species new to science.

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Carte d’état-major de la Corse (1864-1866). Occupation du sol et première analyse des forêts anciennes

Cited by 3 publications

References 0 publications

Plant Biogeography and Vegetation Patterns of the Mediterranean Islands

Plant Biogeography and Vegetation Patterns of the Mediterranean Islands

The specific vulnerability of plant biodiversity and vegetation on Mediterranean islands in the face of global change

Our Planet Reviewed in Corsica 2019-2021: a large-scale survey of neglected biodiversity on a Mediterranean island

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