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6 recherche sur le mot-clé 'Anchusa crispa Viv.'   

Biologie et écologie d'une espèce endémique corso-sarde rare et protégée : Anchusa crispa viv. (Boraginaceae). Implication pour sa conservation / Angélique Quilichini (1999)

Public Citation Titre : Biologie et écologie d'une espèce endémique corso-sarde rare et protégée : Anchusa crispa viv. (Boraginaceae). Implication pour sa conservation Type de document : Imprimé Auteurs : Angélique Quilichini (1970-) Année de publication : 1999 Importance : 140 p. Langues : Français (fre) Catégories : [CBNPMP-Thématique] Démographie, écologie des populations (dynamique des populations, démécologie) [CBNPMP-Thématique] Démographie [CBNPMP-Thématique] Génétique et écologie (dynamique, démographique, sélection) [CBNPMP-Thématique] Variabilité en protéines, polymorphisme enzymatique [CBNPMP-Thématique] Système de reproduction [CBNPMP-Thématique] Coadaptation, coévolution, symbiose (dissémination, pollinisation) [CBNPMP-Thématique] Chorologie [CBNPMP-Géographique] Corse (France) Mots-clés : Anchusa crispa Viv. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=77754 Quilichini, Angélique (1970-) , 1999. Biologie et écologie d'une espèce endémique corso-sarde rare et protégée : Anchusa crispa viv. (Boraginaceae). Implication pour sa conservation. , . 140 pp.

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11264	8400	Thèse et mémoire	Centre de documentation	Bibliothèque	Consultable

Biologie et estimation des menaces pesant sur les populations de l'endémique corso-sarde Anchusa crispa Viv. (Boraginaceae) en Corse / Angélique Quilichini in Acta botanica gallica, 148 (4) (2001)

Public Citation [article]  inActa botanica gallica > 148 (4) (2001) . - 319-331 Titre : Biologie et estimation des menaces pesant sur les populations de l'endémique corso-sarde Anchusa crispa Viv. (Boraginaceae) en Corse Type de document : Imprimé Auteurs : Angélique Quilichini (1970-) Année de publication : 2001 Article en page(s) : 319-331 Langues : Français (fre) Catégories : [CBNPMP-Thématique] Biologie de la reproduction [CBNPMP-Thématique] Monitoring, suivi [CBNPMP-Thématique] Mode de diffusion des semences [CBNPMP-Thématique] Stratégie de conservation in situ [CBNPMP-Géographique] Corse (France) Mots-clés : Anchusa crispa Viv. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=137669 Quilichini, Angélique (1970-) 2001 Biologie et estimation des menaces pesant sur les populations de l'endémique corso-sarde Anchusa crispa Viv. (Boraginaceae) en Corse. Acta botanica gallica, 148(4): 319-331.

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
R352	P-286	Revue	Centre de documentation	Revues	Consultable

Evidence for local outbreeding depression in the Mediterranean island endemic Anchusa crispa Viv. (Boraginaceae) / Angélique Quilichini (2001) 

Public Citation est un tiré à part de 87 - 2001 (Heredity) Titre : Evidence for local outbreeding depression in the Mediterranean island endemic Anchusa crispa Viv. (Boraginaceae) Type de document : Tiré à part de revue Auteurs : Angélique Quilichini (1970-) ; Max Debussche (1948-) ; John D. Thompson (1959-) Année de publication : 2001 Importance : 1-8 Langues : Anglais (eng) Catégories : [CBNPMP-Géographique] Corse (France) [CBNPMP-Thématique] Génétique et écologie (dynamique, démographique, sélection) [CBNPMP-Thématique] Régime et stratégie de reproduction (allogamie, autogamie, apomixie, reproduction asexué) Mots-clés : Anchusa crispa Viv. Résumé : In this study we examined the relative effects of inbreeding and outbreeding on offspring fitness over two generations in Anchusa crispa Viv., a rare species which on Corsica (France) occurs in small populations composed of patches of few individuals. Self- and outcross-pollinations were carried out in a single population and F1 progeny grown to flowering. Plants grown from selfing and outcrossing were then selfed or outcrossed to produce F2 individuals in four combinations of pollination treatments over two generations, i.e. self + self, self + outcross, outcross + self and outcross + outcross. In the F1 generation, selfed progeny had a significantly greater number of cymes per plant than outcrossed progeny (P=0.006). Plants from two generations of selfing had fewer seeds per fruit (P=0.06) but a significantly greater survival rate (P < 0.001) and a greater number of cymes (P=0.06) than those from two generations of outcrossing. Selfed F2 from outcrossed F1 had a significantly greater number of cymes (P < 0.01) than outcrossed F2 from outcrossed F1. In the comparison between selfed and outcrossed F2 from selfed F1 the former had a significantly greater survival rate (P < 0.001), but the latter significantly more flowers per cyme (P < 0.05). Together, these results indicate that outbreeding depression may occur on a very local scale within populations of this rare endemic species, with important implications for the conservation of rare plants. Lien pérenne : DOI : 10.1046/j.1365-2540.2001.00897.x Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=130703 Quilichini, Angélique (1970-), Debussche, Max (1948-), Thompson, John D. (1959-) 2001 Evidence for local outbreeding depression in the Mediterranean island endemic Anchusa crispa Viv. (Boraginaceae). Heredity, 87 : 1-8.

Documents numériques

Consultable Article (2001) URL

Seed dispersal and germination patterns in a rare Mediterranean island endemic (Anchusa crispa Viv., Boraginaceae) / Angélique Quilichini (2000)

Public Citation est un tiré à part de 21 (6) - 2000 (Acta oecologica. Oecologia generalis) Titre : Seed dispersal and germination patterns in a rare Mediterranean island endemic (Anchusa crispa Viv., Boraginaceae) Type de document : Tiré à part de revue Auteurs : Angélique Quilichini (1970-) ; Max Debussche (1948-) Année de publication : 2000 Importance : 303-313 Langues : Français (fre) Catégories : [CBNPMP-Thématique] Banque de semences dans le sol [CBNPMP-Thématique] Ecologie de la germination [CBNPMP-Thématique] Mode de diffusion des semences [CBNPMP-Géographique] Corse (France) Mots-clés : Anchusa crispa Viv. Résumé : We analyse and discuss patterns of seed dispersal and germination of a rare endemic plant species, Anchusa crispa Viv. (Boraginaceae) from Corsica and Sardinia. This coastal plant inhabits dunes and back-dunes, and currently numbers only a few thousand individuals which generally occur in isolated populations. This study included experiments conducted in the field in Corsica and also under controlled conditions in the laboratory. Short-distance dispersal of A. crispa is performed by ants, both by myrmecochory and dyszoochory. The invasion of an exotic species of ant, Linepithema humile, could locally modify the dispersal system and possibly the population dynamics of A. crispa. Long-distance dispersal may occur by water transport since seeds can germinate after at least 1 week of immersion in seawater and readily float on the surface. Burial of seeds is favourable for germination, percentage germination being maximised at a depth of 1–2 cm below the soil surface. A. crispa has a seed bank of about ten viable seeds per m2, which may contribute to the survival of this species which exists in small populations with a short life span. Due to its seed dispersal and germination patterns, the conservation of this species will necessitate that human disturbance, which can destabilise the surface of the sand is prevented and that new populations are introduced to favourable sites. Lien pérenne : DOI : 10.1016/S1146-609X(00)01089-4 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=130702 Quilichini, Angélique (1970-), Debussche, Max (1948-) 2000 Seed dispersal and germination patterns in a rare Mediterranean island endemic (Anchusa crispa Viv., Boraginaceae). Acta oecologica. Oecologia generalis, 21(6) : 303-313.

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
10870	Quilichini A.	Tiré à part	Centre de documentation	Tirés à part	Consultable

How much do we know and how much do we care about genetic diversity of threatened plants ? A case study from the French flora / Juliette Ducrettet in Botany letters, 170 (1) (2023)

Public Citation [article]  inBotany letters > 170 (1) (2023) . - 110-118 Titre : How much do we know and how much do we care about genetic diversity of threatened plants ? A case study from the French flora Type de document : Imprimé Auteurs : Juliette Ducrettet ; Sandrine Maurice ; Éric Imbert Année de publication : 2023 Article en page(s) : 110-118 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Diversité génétique [CBNPMP-Thématique] Statut des espèces & des milieux, degré de menace, extinction, régression, plantes rares, Livre Rouge [CBNPMP-Thématique] Conservation et gestion des espèces [CBNPMP-Géographique] France Mots-clés : Arenaria grandiflora L.  Convolvulus lanuginosus  Pinguicula grandiflora Lam.  Agropyron cristatum  Vitis vinifera L.  Delphinium montanum DC.  Aster pyrenaeus Desf. ex DC., 1805  Biscutella neustriaca  Ranunculus nodiflorus L., 1753  Narcissus triandus  Eryngium viviparum J. Gay.  Centaurea corymbosa Pourret  Brassica insularis Moris  Cypripedium calceolus L., 1753  Anchusa crispa Viv.  Eryngium alpinum L., 1753  Liparis loeselii (L.) L.C.M. Richard  Ranunculus lateriflorus Résumé : mall demographic size and reduced genetic diversity increase the extinction probability of a population. Genetic diversity within populations for neutral markers is an heuristic parameter, as it reflects past and ongoing processes acting on populations, and informs on possible futures. This study presents a synthesis of the knowledge on neutral genetic diversity for threatened plants in metropolitan France and the use of such data in management actions. Pairing threatened species with the closest non-threatened species for which we could find appropriate genetic data, we collected information on genetic diversity for 25 threatened species and non-threatened controls. We found that threatened species in France have on average a lower within-population genetic diversity than non-threatened controls and thus are exposed to risks linked to genetic erosion. Combining an analysis of recovery plans and a survey addressed to practitioners, we concluded that genetic diversity is rarely integrated in management actions. The integration of such information into applied conservation remains a challenge. We provide some guidelines to collect biological traits impacting within-population genetic diversity and some specific recommendations for a better incorporation of population genetics concepts into conservations actions. Lien pérenne : DOI : 10.1080/23818107.2022.2125902 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=153215 Ducrettet, Juliette, Maurice, Sandrine, Imbert, Éric 2023 How much do we know and how much do we care about genetic diversity of threatened plants ? A case study from the French flora. Botany letters, 170(1): 110-118.

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
R22162	P-1824	Revue	Centre de documentation	Revues	Consultable

Plans de gestion conservatoire mis en place en Corse pour cinq espèces végétales endémiques et prioritaires de la Directive "Habitats" / Annie Aboucaya in Bulletin de la Société botanique du Centre-ouest. Numéro spécial, 19 (n.s.) (1999)

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