8 research outputs found
Ecological and patrimonial study of the stand of Corsican odonates applied to the conservation of species and wetlands with stakes
La Corse abrite une grande diversitĂ© de zones humides soumises Ă des pressions et menaces dâorigine anthropique qui nâont cessĂ© de croĂźtre et de se diversifier au cours de ces derniĂšres dĂ©cennies. La conservation de ces milieux Ă forte valeur patrimoniale et du peuplement dâodonates original qui sây dĂ©veloppe, reprĂ©sente aujourdâhui dâimportants enjeux environnementaux et sociĂ©taux afin de prĂ©server les services Ă©cologiques essentiels rendus par ces Ă©lĂ©ments clefs des Ă©cosystĂšmes aquatiques et terrestres. Le projet de recherche appliquĂ©e dĂ©veloppĂ© dans le cadre de cette thĂšse sâest attachĂ© Ă amĂ©liorer les connaissances disponibles sur les libellules de Corse, afin de proposer des mesures de conservation et de gestion concrĂštes en faveur de ce groupe et de ses principaux habitats naturels sur lâĂźle. Dans cet objectif, la premiĂšre partie de ces travaux sâest employĂ©e Ă combler les principales lacunes de connaissance identifiĂ©es par les Ă©tudes antĂ©rieures sur la situation des espĂšces, notamment en intensifiant lâeffort de prospection consenti Ă lâĂ©chelle rĂ©gionale. Les particularitĂ©s, la rĂ©partition, les exigences et habitats Ă©cologiques de nombreuses libellules se dĂ©veloppant en Corse ont pu ĂȘtre dĂ©crits avec prĂ©cision. Les informations disponibles sur certains taxons Ă forte valeur patrimoniale ont particuliĂšrement augmentĂ© comme lâillustre la dĂ©finition trĂšs complĂšte de la situation Ă©co-biogĂ©ographique de Chalcolestes parvidens. La deuxiĂšme partie de ces travaux sâest attachĂ©e Ă Ă©valuer et comparer lâefficacitĂ© des principales mĂ©thodes dâĂ©chantillonnage couramment utilisĂ©es pour lâĂ©tude des populations dâodonates. Dans ce cadre, les nombreuses informations rĂ©coltĂ©es sur lâorganisation spatiale et la dynamique des populations Ă©tudiĂ©es ont notamment Ă©tĂ© employĂ©es afin de proposer aux principaux gestionnaires dâespaces naturels de lâĂźle (Conseils dĂ©partementaux, PNRC, CommunesâŠ) des mĂ©thodes adaptĂ©es pour lâĂ©valuation et le monitoring des espĂšces Ă fort enjeu de conservation, dont lâemblĂ©matique et menacĂ© Lestes macrostigma.La troisiĂšme partie de ces travaux est consacrĂ©e au dĂ©veloppement dâoutils pour le suivi de la qualitĂ© des principaux habitats dâodonates. Elle a permis dâaboutir Ă lâĂ©laboration dâun tout nouvel indice biologique adaptĂ© Ă lâĂ©valuation de lâĂ©tat Ă©cologique des riviĂšres de Corse : « Odonata Community Index â Corsica » (OCIC). Cet outil innovant, basĂ© sur lâĂ©tude du peuplement caractĂ©ristique des libellules des cours dâeau, sâest montrĂ© particuliĂšrement performant lors de sa confrontation aux autres indices biologiques actuellement utilisĂ©s sur lâĂźle. Lâindice OCIC et le groupe des odonates apparaissent aujourdâhui clairement comme des solutions alternatives prometteuses, en vue dâamĂ©liorer lâefficacitĂ© du systĂšme dâĂ©valuation de la qualitĂ© Ă©cologique des riviĂšres de Corse, compte tenu des failles de reprĂ©sentativitĂ© mises en Ă©vidence par les expĂ©rimentations rĂ©alisĂ©es.La derniĂšre partie de cette thĂšse, basĂ©e sur des Ă©valuations patrimoniales et Ă©cologiques du peuplement insulaire dâodonates rĂ©alisĂ©es Ă lâaide des informations produites, se conclue par le dĂ©veloppement de nouveaux dispositifs rĂ©gionaux de conservation en lien avec les services de lâEtat : un Plan RĂ©gional dâActions, une liste rouge dâespĂšces menacĂ©es ainsi quâune liste actualisĂ©e dâespĂšces dĂ©terminantes pour les Zones Naturelles dâIntĂ©rĂȘt Ecologique Faunistique et Floristique. Ces dispositifs permettront dâamĂ©liorer lâĂ©tat de conservation des libellules de Corse et des principales zones humides qui les abritent.Au final, ces travaux de thĂšse qui ont permis de plus de tripler les donnĂ©es disponibles jusquâalors sur les libellules de Corse, fourniront un nouveau cadre de dĂ©veloppement pour lâodonatologie insulaire.Corsica is home to a great diversity of wetland subject to anthropogenic pressures and threats which have continued to grow and diversify in recent decades. The conservation of these environments with high heritage value and of the original Odonata community that develops in it, today represents significant environmental and societal challenges in order to preserve essential ecological services provided by these key elements of aquatic and terrestrial ecosystems. The applied research project developed as part of this thesis is focused on improving the knowledge available on the corsican dragonflyâs community, to propose concrete conservation and management measures for this group and its main insular natural habitats.In this objective, the first part of this work has sought to fill principal knowledge gaps identified by previous studies on the situation of listed species, including by greatly intensifying exploration effort at the regional level. The special features, distribution, habitat requirements and ecological of many dragonflies growing in Corsica have been described with great precision. The information available on some taxa with high heritage value increased as illustrated by the comprehensive definition of eco-bio-geographical situation of Chalcolestes parvidens.The second part of this work has sought to evaluate and compare the effectiveness of the main sampling methods commonly used for the study of dragonflyâs populations. In this context, the informations collected on the spatial organization and dynamics of the populations studied were especially used to propose appropriate methods for evaluation and monitoring the species to high conservation issue to main managers of natural areas of the island (County Councils, PNRC, municipalities ...), including the emblematic and threatened Lestes macrostigma.The third part of this work is devoted to the development of tools for monitoring the quality of the main Odonata habitats. It lead to the development of a new biological index adapted to assess the ecological status of corsican rivers: "Odonata Community Index - Corsica '(OCIC). This innovative tool, based on the study of characteristics of Odonata community of watercourses, was particularly effective during its confrontation with other biological indicators currently used on the island. The OCIC index today appear clearly as an alternative solution to improve the efficiency of the ecological quality assessment system of the Corsican rivers, given the representativeness vulnerabilities which have been highlighted by the tests performed.The final part of this thesis, based on heritage and environmental assessments of the insular dragonflyâs community made with all the information produced, ended with the development and the proposal of several regional conservation devices whose implementation is encouraged by the state services: a first regional actions plan, a first red list of threatened species and an updated list of species determinative for natural areas of ecological, flora and fauna interest. These important features are intended to contribute to improve the overall state of conservation of Corsican dragonflies and main wetlands that support them. They should enable the implementation of truly operational management actions and ensure better consideration of the main regional conservation and valuation issues identified.In the end, the thesis work that increased more than triple the previously available data on dragonflies of Corsica, will provide a new framework to developpe the isular odonatology
Etude écologique et patrimoniale du peuplement des odonates de Corse appliquée à la conservation des espÚces et des zones humides à enjeux
Corsica is home to a great diversity of wetland subject to anthropogenic pressures and threats which have continued to grow and diversify in recent decades. The conservation of these environments with high heritage value and of the original Odonata community that develops in it, today represents significant environmental and societal challenges in order to preserve essential ecological services provided by these key elements of aquatic and terrestrial ecosystems. The applied research project developed as part of this thesis is focused on improving the knowledge available on the corsican dragonflyâs community, to propose concrete conservation and management measures for this group and its main insular natural habitats.In this objective, the first part of this work has sought to fill principal knowledge gaps identified by previous studies on the situation of listed species, including by greatly intensifying exploration effort at the regional level. The special features, distribution, habitat requirements and ecological of many dragonflies growing in Corsica have been described with great precision. The information available on some taxa with high heritage value increased as illustrated by the comprehensive definition of eco-bio-geographical situation of Chalcolestes parvidens.The second part of this work has sought to evaluate and compare the effectiveness of the main sampling methods commonly used for the study of dragonflyâs populations. In this context, the informations collected on the spatial organization and dynamics of the populations studied were especially used to propose appropriate methods for evaluation and monitoring the species to high conservation issue to main managers of natural areas of the island (County Councils, PNRC, municipalities ...), including the emblematic and threatened Lestes macrostigma.The third part of this work is devoted to the development of tools for monitoring the quality of the main Odonata habitats. It lead to the development of a new biological index adapted to assess the ecological status of corsican rivers: "Odonata Community Index - Corsica '(OCIC). This innovative tool, based on the study of characteristics of Odonata community of watercourses, was particularly effective during its confrontation with other biological indicators currently used on the island. The OCIC index today appear clearly as an alternative solution to improve the efficiency of the ecological quality assessment system of the Corsican rivers, given the representativeness vulnerabilities which have been highlighted by the tests performed.The final part of this thesis, based on heritage and environmental assessments of the insular dragonflyâs community made with all the information produced, ended with the development and the proposal of several regional conservation devices whose implementation is encouraged by the state services: a first regional actions plan, a first red list of threatened species and an updated list of species determinative for natural areas of ecological, flora and fauna interest. These important features are intended to contribute to improve the overall state of conservation of Corsican dragonflies and main wetlands that support them. They should enable the implementation of truly operational management actions and ensure better consideration of the main regional conservation and valuation issues identified.In the end, the thesis work that increased more than triple the previously available data on dragonflies of Corsica, will provide a new framework to developpe the isular odonatology.La Corse abrite une grande diversitĂ© de zones humides soumises Ă des pressions et menaces dâorigine anthropique qui nâont cessĂ© de croĂźtre et de se diversifier au cours de ces derniĂšres dĂ©cennies. La conservation de ces milieux Ă forte valeur patrimoniale et du peuplement dâodonates original qui sây dĂ©veloppe, reprĂ©sente aujourdâhui dâimportants enjeux environnementaux et sociĂ©taux afin de prĂ©server les services Ă©cologiques essentiels rendus par ces Ă©lĂ©ments clefs des Ă©cosystĂšmes aquatiques et terrestres. Le projet de recherche appliquĂ©e dĂ©veloppĂ© dans le cadre de cette thĂšse sâest attachĂ© Ă amĂ©liorer les connaissances disponibles sur les libellules de Corse, afin de proposer des mesures de conservation et de gestion concrĂštes en faveur de ce groupe et de ses principaux habitats naturels sur lâĂźle. Dans cet objectif, la premiĂšre partie de ces travaux sâest employĂ©e Ă combler les principales lacunes de connaissance identifiĂ©es par les Ă©tudes antĂ©rieures sur la situation des espĂšces, notamment en intensifiant lâeffort de prospection consenti Ă lâĂ©chelle rĂ©gionale. Les particularitĂ©s, la rĂ©partition, les exigences et habitats Ă©cologiques de nombreuses libellules se dĂ©veloppant en Corse ont pu ĂȘtre dĂ©crits avec prĂ©cision. Les informations disponibles sur certains taxons Ă forte valeur patrimoniale ont particuliĂšrement augmentĂ© comme lâillustre la dĂ©finition trĂšs complĂšte de la situation Ă©co-biogĂ©ographique de Chalcolestes parvidens. La deuxiĂšme partie de ces travaux sâest attachĂ©e Ă Ă©valuer et comparer lâefficacitĂ© des principales mĂ©thodes dâĂ©chantillonnage couramment utilisĂ©es pour lâĂ©tude des populations dâodonates. Dans ce cadre, les nombreuses informations rĂ©coltĂ©es sur lâorganisation spatiale et la dynamique des populations Ă©tudiĂ©es ont notamment Ă©tĂ© employĂ©es afin de proposer aux principaux gestionnaires dâespaces naturels de lâĂźle (Conseils dĂ©partementaux, PNRC, CommunesâŠ) des mĂ©thodes adaptĂ©es pour lâĂ©valuation et le monitoring des espĂšces Ă fort enjeu de conservation, dont lâemblĂ©matique et menacĂ© Lestes macrostigma.La troisiĂšme partie de ces travaux est consacrĂ©e au dĂ©veloppement dâoutils pour le suivi de la qualitĂ© des principaux habitats dâodonates. Elle a permis dâaboutir Ă lâĂ©laboration dâun tout nouvel indice biologique adaptĂ© Ă lâĂ©valuation de lâĂ©tat Ă©cologique des riviĂšres de Corse : « Odonata Community Index â Corsica » (OCIC). Cet outil innovant, basĂ© sur lâĂ©tude du peuplement caractĂ©ristique des libellules des cours dâeau, sâest montrĂ© particuliĂšrement performant lors de sa confrontation aux autres indices biologiques actuellement utilisĂ©s sur lâĂźle. Lâindice OCIC et le groupe des odonates apparaissent aujourdâhui clairement comme des solutions alternatives prometteuses, en vue dâamĂ©liorer lâefficacitĂ© du systĂšme dâĂ©valuation de la qualitĂ© Ă©cologique des riviĂšres de Corse, compte tenu des failles de reprĂ©sentativitĂ© mises en Ă©vidence par les expĂ©rimentations rĂ©alisĂ©es.La derniĂšre partie de cette thĂšse, basĂ©e sur des Ă©valuations patrimoniales et Ă©cologiques du peuplement insulaire dâodonates rĂ©alisĂ©es Ă lâaide des informations produites, se conclue par le dĂ©veloppement de nouveaux dispositifs rĂ©gionaux de conservation en lien avec les services de lâEtat : un Plan RĂ©gional dâActions, une liste rouge dâespĂšces menacĂ©es ainsi quâune liste actualisĂ©e dâespĂšces dĂ©terminantes pour les Zones Naturelles dâIntĂ©rĂȘt Ecologique Faunistique et Floristique. Ces dispositifs permettront dâamĂ©liorer lâĂ©tat de conservation des libellules de Corse et des principales zones humides qui les abritent.Au final, ces travaux de thĂšse qui ont permis de plus de tripler les donnĂ©es disponibles jusquâalors sur les libellules de Corse, fourniront un nouveau cadre de dĂ©veloppement pour lâodonatologie insulaire
Ătude du peuplement des Formicidae des arriĂšres-dunes littorales du site de Campo dellâOro (Ajaccio, Corse) et de la compĂ©tition entre deux taxons Ă caractĂšre envahissant : Linepithema humile (Mayr, 1868) et Tapinoma nigerrimum (Nylander, 1856)
A study of the Formicidae community of littoral backdunes at Campo dellâOro (Ajaccio, Corsica) and of the competition between two invasive taxa : Linepithema humile (Mayr, 1868) and Tapinoma nigerrimum (Nylander, 1856).
The Corsican Formicidae community suffers today from important changes affecting coastal backdunes environments. These changes are linked to the recent expansion of two invasive species : the alien species Linepithema humile (Mayr, 1868) and Tapinoma nigerrimum (Nylander, 1856), considered as a native species. This study explores for the first time the organization of Formicidae community in a typical site of coastal backdunes in Corsica (Campo dellâOro at Ajaccio), as well as the effects of the combined presence of L. humile and T. nigerrimum on the local myrmecofauna. In this context, different sampling techniques have been used (e. g. nest recording, workers trapping) in order to analyse several parameters that may affect Formicidae communities : species diversity, taxa distribution, habitats and nests and workers densities. These analyses highlight the important effects of several biotic and abiotic factors (e.g. vegetation type, organic matter, humidity) on the distribution and organization of ants from Corsican beaches. The data also show a clear spatial exclusion between L. humile and T. nigerrimum due to competition between the two species. Finally, unlike the native species, L. humile seems unable to coexist with high diversity of species in the coastal backdunes.Le peuplement de Formicidae de Corse subit aujourdâhui dâimportantes transformations touchant notamment les milieux dâarriĂšres-dunes littorales. Ces Ă©volutions sont liĂ©es en particulier Ă lâarrivĂ©e rĂ©cente de deux taxons Ă caractĂšre envahissant : Linepithema humile (Mayr, 1868), dâorigine exogĂšne et Tapinoma nigerrimum (Nylander, 1856), considĂ©rĂ©e comme une espĂšce locale. Les prĂ©sents travaux ont pour objectifs dâĂ©tudier pour la premiĂšre fois lâorganisation du peuplement de Formicidae sur un site reprĂ©sentatif des milieux dâarriĂšres-dunes littorales de Corse (Campo dellâOro Ă Ajaccio) ainsi que les effets sur la myrmĂ©cofaune locale de lâimplantation sur une mĂȘme localitĂ© de L. humile et T. nigerrimum. Dans ce cadre, diffĂ©rentes techniques dâĂ©chantillonnage ont Ă©tĂ© employĂ©es (e. g. recherches de nids, piĂ©geages dâindividus) afin dâanalyser plusieurs paramĂštres pouvant influer sur les peuplements de Formicidae : diversitĂ© spĂ©cifique, rĂ©partition des espĂšces, habitats, densitĂ©s de nids et dâouvriĂšres. Les analyses mettent en Ă©vidence les effets marquĂ©s de plusieurs facteurs biotiques et abiotiques (e.g. type de vĂ©gĂ©tation, matiĂšre organique, humiditĂ©) sur la distribution et lâorganisation des fourmis. De plus, les observations montrent un phĂ©nomĂšne dâexclusion spatiale entre L. humile et T. nigerrimum liĂ© Ă la compĂ©tition entre ces deux taxons. Contrairement aux espĂšces considĂ©rĂ©es comme locales, L. humile ne semble pouvoir coexister quâavec une trĂšs faible diversitĂ© dâespĂšces dans les arriĂšres-dunes littorales.Berquier Cyril, Lebas Claude, Andrei-Ruiz Marie-CĂ©cile. Ătude du peuplement des Formicidae des arriĂšres-dunes littorales du site de Campo dellâOro (Ajaccio, Corse) et de la compĂ©tition entre deux taxons Ă caractĂšre envahissant : Linepithema humile (Mayr, 1868) et Tapinoma nigerrimum (Nylander, 1856). In: Revue d'Ăcologie (La Terre et La Vie), tome 73, n°1, 2018. pp. 12-22
A study of the Formicidae community of littoral backdunes at Campo dellâOro (Ajaccio, Corsica) and of the competition between two invasive taxa: Linepithema humile (Mayr, 1868) and Tapinoma nigerrimum (Nylander, 1856)
Le peuplement de Formicidae de Corse subit aujourdâhui dâimportantes transformations touchant notamment les milieux dâarriĂšres-dunes littorales. Ces Ă©volutions sont liĂ©es en particulier Ă lâarrivĂ©e rĂ©cente de deux taxons Ă caractĂšre envahissant : Linepithema humile (Mayr, 1868), dâorigine exogĂšne et Tapinoma nigerrimum (Nylander, 1856), considĂ©rĂ©e comme une espĂšce locale. Les prĂ©sents travaux ont pour objectifs dâĂ©tudier pour la premiĂšre fois lâorganisation du peuplement de Formicidae sur un site reprĂ©sentatif des milieux dâarriĂšres-dunes littorales de Corse (Campo dellâOro Ă Ajaccio) ainsi que les effets sur la myrmĂ©cofaune locale de lâimplantation sur une mĂȘme localitĂ© de L. humile et T. nigerrimum. Dans ce cadre, diffĂ©rentes techniques dâĂ©chantillonnage ont Ă©tĂ© employĂ©es (e.g. recherches de nids, piĂ©geages dâindividus) afin dâanalyser plusieurs paramĂštres pouvant influer sur les peuplements de Formicidae : diversitĂ© spĂ©cifique, rĂ©partition des espĂšces, habitats, densitĂ©s de nids et dâouvriĂšres. Les analyses mettent en Ă©vidence les effets marquĂ©s de plusieurs facteurs biotiques et abiotiques (e.g. type de vĂ©gĂ©tation, matiĂšre organique, humiditĂ©) sur la distribution et lâorganisation des fourmis. De plus, les observations montrent un phĂ©nomĂšne dâexclusion spatiale entre L. humile et T. nigerrimum liĂ© Ă la compĂ©tition entre ces deux taxons. Contrairement aux espĂšces considĂ©rĂ©es comme locales, L. humile ne semble pouvoir coexister quâavec une trĂšs faible diversitĂ© dâespĂšces dans les arriĂšres-dunes littorales.The Corsican Formicidae community suffers today from important changes affecting coastal backdunes environments. These changes are linked to the recent expansion of two invasive species: the alien species Linepithema humile (Mayr, 1868) and Tapinoma nigerrimum (Nylander, 1856), considered as a native species. This study explores for the first time the organization of Formicidae community in a typical site of coastal backdunes in Corsica (Campo dellâOro at Ajaccio), as well as the effects of the combined presence of L. humile and T. nigerrimum on the local myrmecofauna. In this context, different sampling techniques have been used (e.g. nest recording, workers trapping) in order to analyse several parameters that may affect Formicidae communities: species diversity, taxa distribution, habitats and nests and workers densities. These analyses highlight the important effects of several biotic and abiotic factors (e.g. vegetation type, organic matter, humidity) on the distribution and organization of ants from Corsican beaches. The data also show a clear spatial exclusion between L. humile and T. nigerrimum due to competition between the two species. Finally, unlike the native species, L. humile seems unable to coexist with high diversity of species in the coastal backdunes
Contribution of a DNA barcode to an assessment of the specificity of ant taxa (Hymenoptera: Formicidae) on Corsica
International audienceWe used the COI marker, the most popular DNA barcode for the animal kingdom, to assess the taxonomic status of Corsican populations of eight groups of species of ants that occur both on Corsica and the European mainland. (i) In two groups, we detected no genetic differentiation between Corsica and the continent. Absence of differentiation across varieties of Aphaenogaster spinosa within Corsica confirm current synonymies. (ii) In four groups, we detected strong genetic differentiation between Corsica and the continent, confirming recent taxonomic studies based on morphology for three of these groups. For the fourth group, we propose that the status of Corsican populations be raised from sub-species to species: Temnothorax cordieri stat. rev. (iii) In one group, the genetic differentiation and morphological differences do not support splitting and as a consequence we propose to accept the previous synonymy Temnothorax tuberum = Temnothorax melanocephalus. (iv) In Myrmica scabrinodis and Myrmica spinosior, COI sequence information is largely inconsistent with morphology and geography, not only on Corsica but also on the mainland, and should not be used to support taxonomic decisions. Although the use of COI has drawbacks, it is globally consistent with morphology and can be used to complement morphological ant taxonomy. We provide an updated checklist of ants of Corsica
ï»żEstablishment and new hosts of the non-native seed beetle Stator limbatus (Coleoptera, Chrysomelidae, Bruchinae) on acacias in Europe
Stator limbatus is a phytophagous beetle native to warm regions of North and Central America, feeding on Fabaceae seeds and one of the most polyphagous species within the subfamily Bruchinae, here reported for the first time in Europe and on new hosts. Adult beetles emerged from Acacia spp. seeds collected in the islands of Corsica (France), and Sardinia (Italy). The wide presence in Sardinia and Corsica supports the hypothesis that this alien species was introduced several years ago. In both islands, S. limbatus emerged from Acacia mearnsii seeds, with infestation rates of up to 74.2 and 90.8% in 2019 and 2020, respectively. This seed beetle also emerged from two previously unreported host species, Acacia saligna and A. pycnantha, showing highest infestation rates of 4.0 and 95.1%, respectively. Both Acacia species are reported as new host associations with S. limbatus. Overall, seed infestation rates recorded in 2019 and 2020 indicate that S. limbatus is well established and that Mediterranean bioclimatic conditions are suitable for its population ncrease in size. This study lays the foundations for further research on known and potential host species and the spread and distribution of S. limbatus in Europe
La PlanÚte Revisitée en Corse. Expéditions terrestres 2021 - CÎte orientale et <i>Capicorsu</i>: Bilan scientifique
"The Planet Reviewed in Corsica" is an expedition by the MNHN in partnership with the CollectivitĂ© de Corse and the French Office for Biodiversity. Between 2019 and 2022, several teams of scientists are undertaking an inventory of terrestrial and marine diversity of Corsica. The objective is to establish a reference state of a series of sites of high biological value and to modernize the collections of the MNHN. This report provides a quick overview of terrestrial expeditions from two emblematic sectors of Corsica: the west coast and northern Capicorsu. From March to May 2021, 34 participants took part of the inventory of about 10 sites. In 2021, the increased sampling effort and the first phase of identification made it possible to announce 2 227 inventoried species and 11 346 data uploaded and shared in the national inventory of natural heritage (INPN). This last field year makes an important contribution to the national inventory of natural heritage with 75 species inventoried for the first time in Corsica, 5 new species for France and 12 species expected new to science. Many taxa had not been observed for decades or several for more than a century. This knowledge is being disseminated on OpenObs, the French portal for biodiversity. Moreover, the Barcoding campaign achieved a total of 2 200 specimens sequenced for DNA (CO1 et ITS). The results will contribute to the species identifications, the taxonomic revisions to be published but also to enrich the global Barcode of Life information system.« La PlanĂšte RevisitĂ©e en Corse » est une expĂ©dition du MusĂ©um national dâhistoire naturelle menĂ©e en partenariat avec la CollectivitĂ© de Corse et lâOffice français de la BiodiversitĂ©. Entre 2019 et 2021, plusieurs Ă©quipes de scientifiques entreprennent lâinventaire de diffĂ©rents secteurs terrestres et marins reprĂ©sentatifs de la diversitĂ© de Corse afin dâĂ©tablir un Ă©tat de rĂ©fĂ©rence dâune sĂ©rie de sites Ă forte valeur biologique et de moderniser les collections dâhistoire naturelle de rĂ©fĂ©rence du MusĂ©um national. Ce rapport propose un premier bilan « Ă chaud » des expĂ©ditions terrestres de deux secteurs emblĂ©matiques de lâĂźle : la cĂŽte orientale et le nord du Capicorsu. De mars Ă mai 2021, 34 personnes ont participĂ© Ă lâinventaire dâune dizaine de sites. En 2021, lâeffort important dâĂ©chantillonnage et la premiĂšre phase dâidentification permettent dâores et dĂ©jĂ dâannoncer plus de 2 227 espĂšces inventoriĂ©es et 11 346 donnĂ©es mises en ligne et partagĂ©es. Cette troisiĂšme et derniĂšre annĂ©e de terrain apporte une contribution importante Ă lâinventaire du patrimoine naturel avec 12 nouvelles espĂšces pour la science, 75 espĂšces inventoriĂ©es pour la premiĂšre fois en Corse et au moins 5 espĂšces nouvelles pour la France. De nombreux taxons nâavaient pas Ă©tĂ© observĂ©s depuis plusieurs dĂ©cennies voire plus dâun siĂšcle pour certains. Cette connaissance est en cours de diffusion sur OpenObs, le portail d'accĂšs aux donnĂ©es d'observation sur les espĂšces. En parallĂšle, la campagne de codes-barres ADN (CO1 et ITS) de 2021 a permis de sĂ©quencer 2 200 individus. Les rĂ©sultats permettront de contribuer aux dĂ©terminations pour les inventaires, aux rĂ©visions taxinomiques qui feront lâobjet de publications scientifiques mais Ă©galement dâenrichir le systĂšme dâinformation global Barcode of Life
La PlanÚte Revisitée en Corse. Expéditions terrestres 2021 - CÎte orientale et <i>Capicorsu</i>: Bilan scientifique
"The Planet Reviewed in Corsica" is an expedition by the MNHN in partnership with the CollectivitĂ© de Corse and the French Office for Biodiversity. Between 2019 and 2022, several teams of scientists are undertaking an inventory of terrestrial and marine diversity of Corsica. The objective is to establish a reference state of a series of sites of high biological value and to modernize the collections of the MNHN. This report provides a quick overview of terrestrial expeditions from two emblematic sectors of Corsica: the west coast and northern Capicorsu. From March to May 2021, 34 participants took part of the inventory of about 10 sites. In 2021, the increased sampling effort and the first phase of identification made it possible to announce 2 227 inventoried species and 11 346 data uploaded and shared in the national inventory of natural heritage (INPN). This last field year makes an important contribution to the national inventory of natural heritage with 75 species inventoried for the first time in Corsica, 5 new species for France and 12 species expected new to science. Many taxa had not been observed for decades or several for more than a century. This knowledge is being disseminated on OpenObs, the French portal for biodiversity. Moreover, the Barcoding campaign achieved a total of 2 200 specimens sequenced for DNA (CO1 et ITS). The results will contribute to the species identifications, the taxonomic revisions to be published but also to enrich the global Barcode of Life information system.« La PlanĂšte RevisitĂ©e en Corse » est une expĂ©dition du MusĂ©um national dâhistoire naturelle menĂ©e en partenariat avec la CollectivitĂ© de Corse et lâOffice français de la BiodiversitĂ©. Entre 2019 et 2021, plusieurs Ă©quipes de scientifiques entreprennent lâinventaire de diffĂ©rents secteurs terrestres et marins reprĂ©sentatifs de la diversitĂ© de Corse afin dâĂ©tablir un Ă©tat de rĂ©fĂ©rence dâune sĂ©rie de sites Ă forte valeur biologique et de moderniser les collections dâhistoire naturelle de rĂ©fĂ©rence du MusĂ©um national. Ce rapport propose un premier bilan « Ă chaud » des expĂ©ditions terrestres de deux secteurs emblĂ©matiques de lâĂźle : la cĂŽte orientale et le nord du Capicorsu. De mars Ă mai 2021, 34 personnes ont participĂ© Ă lâinventaire dâune dizaine de sites. En 2021, lâeffort important dâĂ©chantillonnage et la premiĂšre phase dâidentification permettent dâores et dĂ©jĂ dâannoncer plus de 2 227 espĂšces inventoriĂ©es et 11 346 donnĂ©es mises en ligne et partagĂ©es. Cette troisiĂšme et derniĂšre annĂ©e de terrain apporte une contribution importante Ă lâinventaire du patrimoine naturel avec 12 nouvelles espĂšces pour la science, 75 espĂšces inventoriĂ©es pour la premiĂšre fois en Corse et au moins 5 espĂšces nouvelles pour la France. De nombreux taxons nâavaient pas Ă©tĂ© observĂ©s depuis plusieurs dĂ©cennies voire plus dâun siĂšcle pour certains. Cette connaissance est en cours de diffusion sur OpenObs, le portail d'accĂšs aux donnĂ©es d'observation sur les espĂšces. En parallĂšle, la campagne de codes-barres ADN (CO1 et ITS) de 2021 a permis de sĂ©quencer 2 200 individus. Les rĂ©sultats permettront de contribuer aux dĂ©terminations pour les inventaires, aux rĂ©visions taxinomiques qui feront lâobjet de publications scientifiques mais Ă©galement dâenrichir le systĂšme dâinformation global Barcode of Life