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Bruno de Foucault

Bruno de Foucault
Société botanique d'Occitanie · Redaction

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116
Publications
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1,109
Citations
Citations since 2016
7 Research Items
495 Citations
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080

Publications

Publications (116)
Article
Full-text available
Collectif, 2022-Cent observations botaniques remarquables en région Occitanie depuis l'an 2000 1 Title One hundred remarkable botanical observations in the Occitanie region since the year 2000 Résumé À l'occasion de l'édition du numéro 100 de Carnets botaniques, cet article collectif présente cent plantes observées en région Occitanie depuis l'an 2...
Article
Full-text available
This article provides some phytosociological data on the vegetation of a site with a remarkable plant diversity in the Aude departement (France), the Peyremale area, in Montolieu, and by extension some neighboring sites. Five new associations are defined: Dioscoreo communis-Pyretum spinosae, Anacamptido laxiflorae-Serapiadetum linguae, Ranunculo pa...
Technical Report
Full-text available
La directive « Habitats-Faune-Flore » liste dans son annexe I les types d’habitats naturels d’intérêt communautaire dont la conservation nécessite la désignation de zones spéciales de conservation. Cette annexe étant limitée aux codes et intitulés de ces habitats, la Commission européenne a publié un manuel d’interprétation des habitats de l’Union...
Article
The author analyses some divergences between plant and syntaxa nomenclatures, and proposes some corrections in plant systematics.
Article
Within the framework of the prodromous of French vegetations, under the sponsorship of French Society of plant sociology, the author presents the Adiantetea capilli-veneris: declination at the European level, then presentation of cards by known association at the French level. Only one order is recognized, Adiantetalia capilli-veneris, with three a...
Article
Full-text available
In Foucault (de), B. Contribution au prodrome des végétations de France : les Adiantetea capilli-veneris Braun-Blanq. ex Braun-Blanq., Roussine & Nègre 1952. Acta Botanica Gallica : Botany Letters 162 (4) : 375-403 .
Article
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Dans le cadre du prodrome des végétations de France, sous l'égide de la société française de phyto‑ sociologie, les auteurs présentent ici la classe des Epilobietea angustifolii : déclinaison au niveau européen, puis présentation de fiches par association connue au niveau français. mOTs‑CLés : Epilobietea angustifolii, coupes forestières herbacées,...
Article
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L'étude de caractérisation phytosociologique des stations de Choin noirâtre du secteur de Saint-Paul-des-Landes a permis de décrire deux groupements élémentaires originaux, considérés comme des associations nouvelles : un groupement à Carex viridula subsp. oedocarpa et Schoenus nigricans, assimilable à un bas-marais intermédiaire neutro-acidiclinop...
Article
Les détenteurs des savoirs traditionnels sont généralement des personnes âgées. Souvent, celles-ci meurent sans transmettre leurs connaissances aux jeunes de plus en plus désintéressés. Ainsi, avant que cela ne soit trop tard, nous nous sommes fixés pour objectif de rassembler les informations sur les poisons de flèches utilisés par les Pygmées de...
Article
We try here to model the vegetal dynamics, so progressive as regressive one, by using concepts stemming from the classic physics and we try to compare some results obtained in the empirical observations, specially the fact that the speed of the evolution in a series decreases when one get closer to the climax. At the same time, we discuss the conce...
Article
We try here to model the vegetal dynamics, so progressive as regressive one, by using concepts stemming from the classic physics and we try to compare some results obtained in the empirical observations, specially the fact that the speed of the evolution in a series decreases when one get closer to the climax. At the same time, we discuss the conce...
Article
Within the framework of the prodrome of French vegetation, under the sponsorship of the French Society of Phytosociology, the author presents Parietarietea judaicae: a list of syntaxa synthesized as tables and presented as 24 records by known association at the French level. In one known order, Parietarietalia judaicae, four alliances are separated...
Article
Les milieux humides reposant sur un lit de tourbe alcaline dans le marais de Sacy-le-Grand (Oise) ont été étudiés selon la méthodologie phytosociologique sigmatiste; huit associations ou groupements ont été identifiés et décrits à l'aide de tableaux de végétation; plusieurs associations de prairies tourbeuses offrent un caractère relictuel incontes...
Article
Full-text available
The spontaneous undergrowth of teak (Tectona grandis L. f.) plantation in Djigbé forest (south Benin) has been studied. The Psychotria vogeliana-community is identified from ten representative phytosociological relevés. This community is an indicator of sandy plateau soils generally associated with the least productive plantations. It's composed of...
Article
This survey addresses the influences of ecological factors on wood biophysical properties of teak wood in plantation in Togo. On national scale, these plantations are discriminated in six ecological groups using a correspondence factor analysis. The same analysis applied to the wood biophysical properties permits to discriminate Togolese teak in si...
Article
The main object of the authors is to present the plant community of Argania spinosa (L.) Skeels in Algeria. The distribution area of this forest tree in the district of Tindouf (Algeria) is identified for the first time. Using phytosociological method adapted to plant community of arid and Saharan land, this study describes three new syntaxa: Faidh...
Article
Full-text available
Isoberlinia doka Craib & Stapf and I. tomentosa (Harms) Craib & Stapf natural regeneration is studied in the Sudanian zone of Togo on 74 plots (10 m ×10 m). The survey show that both species self—maintain by seedlings (32%), stump resprouts (10.6%) and root suckers (57.4%) in five types habitat (fields, fallows less than 5 years, fallows from 5 to...
Article
Full-text available
After several investigations on the savanna and forest of Ngotto (Central African Republic), we propose a phytogeographical interpretation of our data on the systematic (level family), the biological forms, the dispersion of diaspores and phytogeographical elements spectra. These spectra are given regarding both formation type (savanna, forest) to...
Article
One part of Ngotto forest (south-west of Central—African Republic) was studied by the synusial approach in an unpublished thesis; eleven associations, ten subassociations and one provisional community were identified and described. The new syntaxa are validated here according to the International code of phytosociological nomenclature.
Article
As in quantitative laws of classic physics, the qualitative laws of the vegetal world (botany, plant sociology) constitute preferential bridges between some areas a priori without report (flora, vegetation on one hand, ecology, geography, dynamics…on the other hand). One gives an inventory of these multiple laws and one shows how it is possible to...
Article
Full-text available
The flora of Algerian cedar forests is studied. More than 500 species of vascular plants are listed, in about sixty families, belonging to various chorological types and characteristic habitats with a high patrimonial value. The analyses of rarity, endemic species richness and biogeographic value of this flora confirm its originality. The threats o...
Article
Full-text available
The flora and plant communities of gallery forests were studied of the Biosphere Reserve of Pendjari using the phytosociological approach. A total of 350 plant species were identified, of which 98 are typically gallery forest species of the Sudanian region of northern Benin. We define five plant communities: (1) the Broenadia salicina—Garcinia oval...
Article
Using participatory research appraisal, 29 ethnic areas were surveyed to document the folk nomenclature, identify the species under threat and understand the domestication process for the traditional leafy vegetables (TLV) consumed in Benin. It exists a rich folk nomenclature mainly characterised by synonymy and homonymy, 24 species under threat an...
Article
Full-text available
Micromorphological investigation on the trichome in leaves stems, calyxes and corolla in Teucrium L. species (T. creticum L., T. divaricatum Sieb. ex Heldr. subsp. villosum (Celak.) Rech. f, T. lamiifolium Urv. subsp. stachyo- phyllum (P.H. Davis) Hedge & Ekim, T. montbretii Benth. subsp. libanoticum P.H. Davis, T. orientale L. var. orientale and T...
Article
The objective of this study is to analyse the dynamics of a dense semi—deciduous forest, the forest massif of Ngotto situated in the southwest of the Central African Republic, by the systemic approach. We describe some synusial systems and three phytocoenotical systems: a system of the tracks of forestry exploitation, a system of chablis and a syst...
Article
With some researches in Togo, the authors identify an unrecognized vegetal formation for tropical Africa, the tall herb formation, illustrated by the new Marantochloo purpureae—Anubiadetum giganteae, described by a phytosocio- logical table and family, biological, pollination and phytogeographical spectra. Some comparisons with other African tall h...
Article
Full-text available
In a phytosociological study of some beaches on the sea—shore of Togo we described the Remireo maritimae—Canavalietum roseae (easily disturbed by anthropization), the Kyllingo peruvianae—Phyletum nodiflorae, some others herbaceous communities (with Schizachyrium pulchellum or with Paspalum distichum, Blutaparon vermiculare and Sesuvium portulacastr...
Article
One replaces the insectivorous plant genera in the Cronquist's systematics (1981), compared with Takhtajan (1996)'s system, included phytogeographical, ecological, sometimes phytosociological affinities of genera and species.
Article
The author presents the vegetal communities with Nepenthes and other insectivorous species studied in Malaysia (south-east Asia): Cameron Highlands (low herbaceous community with Dicranopteris linearis and Nepenthes sp., scrub community with Vaccinium sp. and Baeckea frutescens), Bako National Park, on sandstone and sterile sands (Casuarina nobilis...
Article
Full-text available
Lebanon is well known for its rich plant diversity. However, few works can be found in the literature related to its flora, and related to phytosociological studies. To date and to the best of our knowledge, no articles are devoted to phytosociology in this country. Therefore, we have conducted 50 samplings throughout 21 Lebanese villages to docume...
Article
Cet article est une contribution à une meilleure connaissance de la flore des forêts claires à Isoberlinia spp. en zone soudanienne au Togo. 508 espèces ligneuses et herbacées réparties en 315 genres et 79 familles ont été recensées sur 225 placeaux de 400 m². Trois nouvelles indications sont faites pour la flore de ces forêts (Thunbergia atacorien...
Article
L’analyse de la problématique des plantes alimentaires mineures et menacées au Togo a pris en compte l’aspect distribution spatiale afin de mieux juger de l’ampleur de la menace. L’étude a été menée sur la base des enquêtes ethnobotaniques dans 280 localités distribuées sur toute l’étendue du territoire togolais. Au total, 137 espèces alimentaires...
Article
Full-text available
Twenty-five strains of filamentous fungi, encompassing 14 different species and belonging mainly to Ascomycetes, were tested for their ability to degrade benzo[a]pyrene (BaP) in mineral liquid medium. The most performing isolates for BaP degradation (200 mg l(-1)) in mineral medium were Cladosporium sphaerospermum with 29 % BaP degradation, i.e., 8...
Article
Full-text available
Traditional leafy vegetables (LFT) are plants whose leaves are used and consumed by local human populations. Africa is an enormous reservoir of diversity for those vegetables which participate to food security, nutrition and monetary income in both rural and urban areas. The leafy vegetables are rich in fibres, vitamins and minerals. But intensive...
Article
Full-text available
La diversité spatiotemporelle des plantes en fleurs a été évaluée autour d’un rucher installé à Manigri (Bénin) à l’aide de relevés phénologiques mensuels de janvier à décembre 2007. Les 266 espèces de plantes en fleurs observées se composent de 196 herbacées et 70 ligneuses. Elles se répartissent en 189 genres et 70 familles. Les valeurs moyennes...
Article
Full-text available
Dans le cadre du prodrome des végétations de France, sous l’égide de la Société française de phytosociologie, les auteurs présentent ici les Cisto ladaniferi – Lavanduletea stoechadis : déclinaison au niveau européen, puis présentation de fiches par association connue au niveau français.
Article
Full-text available
Dans le cadre du prodrome des végétations de France, sous l'égide de la Société française de phytosociologie, les auteurs présentent ici la classe des Agrostietea stoloniferae : déclinaison au niveau européen, avec définition de plusieurs alliances nouvelles (Oenanthion globulosae, Ranunculo ophioglossifolii — Oenanthion fistulosae, Mentho arvensis...
Article
Full-text available
Dans le cadre du prodrome des végétations de France, sous l'égide de la Société française de phytosociologie, les auteurs présentent ici les Nerio oleandri - Tamaricetea africanae, avec définition d'un ordre (Neri° oleandri - Viticetalia agnicasti) et d'une alliance (Tamaricion nilotico - articulatae) nouveaux : déclinaison au niveau européen, puis...
Article
With some researches in Togo, the authors identify an unrecognized vegetal formation for tropical Africa, the tall herb formation, illustrated by the new Marantochloo purpureas - Anubiadetum giganteae, described by a phytosociological table and family, biological, pollination and phytogeographical spectra. Some comparisons with other African tall h...
Article
The objective of this study is to analyse the dynamics of a dense semi-deciduous forest, the forest massif of Ngotto situated in the southwest of the Central African Republic, by the systemic approach. We describe some synusial systems and three phytocoenotical systems: a system of the tracks of forestry exploitation, a system of chablis and a syst...
Article
Full-text available
The Massi natural forest within the Lama forest reserve makes up a particular ecosystem which is unique in Benin, lying on clay vertisols that are periodically inundated with rainwater. As a contribution to its protection, a phytosociological inventory was made using an integrated synusial method for an in-depth study of the forest's spontaneous ve...
Article
Full-text available
Structural and ecological characteristics of private Teak plantations in the Atlantic Department, South Benin, were studied according to the synusial approach of phytosociology in order to contribute to the sustainable management of the plantations. The study of dendrometric characteristics of Teak plantations was done by establishing two temporal...
Article
Full-text available
The study was carried out in the Pahou forest reserve in southern Benin as a contribution to sustainable management of this forest. Plant communities’ assessment was made using the synusial approach to phytosociology. Soils were characterized according to their pedological profiles and physico-chemical properties. Silvicultural plantations paramete...
Article
Structural and ecological characteristics of private Teak plantations in the Atlantic Department, South Benin, were studied according to the synusial approach of phytosociology in order to contribute to the sustainable management of the plantations. The study of dendrometric characteristics of Teak plantations was done by establishing two temporal...
Article
Full-text available
A study has been undertaken in the natural undergrowth of private teak plantations in Abomey—Calavi using the synusial approach to phytosociology. Pedological and topographical factors and private teak plantation production within plant communities have been studied. Mallotus oppositifolius and Macrosphyra longistyla community is identified on acid...
Article
Full-text available
The flora and plant communities of gallery forests were studied of the Biosphere Reserve of Pendjari using the phytosociological approach. A total of 350 plant species were identified, of which 98 are typically gallery forest species of the Sudanian region of northern Benin. We define five plant communities: (1) the Broenadia salicina-Garcinia oval...
Article
Full-text available
A study has been undertaken in the natural undergrowth of private teak plantations in Abomey-Calavi using the synusial approach to phytosociology. Pedological and topographical factors and private teak plantation production within plant communities have been studied. Mallotus oppositifolius and Macrosphyra longistyla community is identified on acid...
Article
Full-text available
Les caractéristiques structurelles et écologiques des plantations privées de teck du département de l’Atlantique au sud du Bénin ont été étudiées par la phytosociologie synusiale intégrée en vue de contribuer à leur gestion durable. Pour étudier leurs caractéristiques dendrométriques, deux placettes temporaires de 1 are ont été implantées dans 150...
Article
Full-text available
STRUCTURE AND ECOLOGY OF THE DIOSPYROS MESPILIFORMIS HOCHST. EX A.DC. AND DIALIUM GUINEENSE WILLD. FOREST IN THE MASS! RESERVE (LA LAMA), BENIN The Massi natural forest within the Lama forest reserve makes up a particular ecosystem which is unique in Benin, lying on clay vertisols that are periodically inundated with rainwater. As a contribution to...
Article
Full-text available
The morphological, anatomical and histochemical characteristics of four endemic taxa of the Teucrium genus (T. kotschyanum Poech, T. divaricatum Heldr. subsp. canescens (Celak.) Holmboe, T cyprium Boiss. subsp. cyprium et T. micropodioides Rouy) growing spontaneously in Cyprus have been studied. For each taxon, the roots, stalks, leafs and flowers...
Article
The main object of the authors is to present the plant community of Argania spinosa (L.) Skeels in Algeria. The distribution area of this forest tree in the district of Tindouf (Algeria) is identified for the first time. Using phytosociological method adapted to plant community of arid and Saharan land, this study describes three new syntaxa: Faidh...
Article
Full-text available
The morphological, anatomical and histochemical characteristics of four endemic taxa of the Teucrium genus (T. kotschyanum Poech, T. divaricatum Heldr. subsp. canescens (Čelak.) Holmboe, T. cyprium Boiss. subsp. cyprium et T. micropodioides Rouy) growing spontaneously in Cyprus have been studied. For each taxon, the roots, stalks, leafs and flowers...
Article
Full-text available
Reçu le 03-04-2008, accepté le 24-03-2009. Résumé Notre étude phytosociologique a été menée dans la forêt classée d'Itchèdè (6°59'-7°00'N et 2°37'-2°38' E). Elle a pour objectif de mieux connaître la forêt pour un meilleur suivi de sa dynamique en vue d'asseoir à terme, une base fiable de son aménagement et de sa gestion durable. Nous avons utilisé...
Article
Isoberlinia doka Craib & Stapf and I. tomentosa (Harms) Craib & Stapf natural regeneration is studied in the Sudanian zone of Togo on 74 plots (10 m ×10 m). The survey show that both species self-maintain by seedlings (32%), stump resprouts (10.6%) and root suckers (57.4%) in five types habitat (fields, fallows less than 5 years, fallows from 5 to...
Article
Full-text available
A study was carried out in Koto forest reserve in central Benin (6°56’ to 7°02’ of north lat. and 02°03’ to 02°09’ of east long), in order to contribute to the sustainable management of the forest. Phytosociological inventory was done using the synusial approach. Soils were studied through texture surveys, pedological profiles description and labor...
Article
Full-text available
Patterns of semi-deciduous forest are investigated in Benin by means of phytosociological relevés and multivariate analyses. Species and family importance values are assessed for each forest type. The classifications and DCA ordination of 176 semi-deciduous forest relevés result in six forest types, patterned along climatic and edaphic gradients. T...
Article
Full-text available
The flora of Algerian cedar forests is studied. More than 500 species of vascular plants are listed, in about sixty families, belonging to various chorological types and characteristic habitats with a high patrimonial value. The analyses of rarity, endemic species richness and biogeographic value of this flora confirm its originality. The threats o...
Article
One part of Ngotto forest (south-west of Central-African Republic) was studied by the synusial approach in an unpublished thesis; eleven associations, ten subassociations and one provisional community were identified and described. The new syntaxa are validated here according to the International code of phytosociological nomenclature.
Article
One part of Ngotto forest (south-west of Central-African Republic) was studied by the synusial approach in an unpublished thesis; eleven associations, ten subassociations and one provisional community were identified and described. The new syntaxa are validated here according to the International code of phytosociological nomenclature.
Article
Full-text available
This paper is a contribution to the understanding of the West African phytogeography, and particularly the vegetation of Benin. We describe the major vegetation types in Benin using numerical analysis, analyse the chorological differentiation of the flora within them using a phytogeographical index and examine the relations between vegetation types...
Article
The water plans of the Togolese East maritime region are all invaded by floating weeds. Phytosociological study of these ones show two communities: Lemno paucicoctatae-Pistietum stratioitis, a Myriophyllum spicatum community. Eichhornia crassipes is quite rare despite its presence on the Lomé lagoon and on the Mono river. Water chemical analysis sh...
Article
Full-text available
The natural undergrowth of Teak (Tectona grandis L. f.) plantations in south and center Benin has been assessed. The Icacina trichantha-plant community is identified in Djigbé forest. On the basis of ten representative phytosociological relevés, this plant community is composed of 93 species with a mean of 37 species per relevé. The analysis of spe...
Article
The water plans of the Togolese East maritime region are all invaded by floating weeds. Phytosociological study of these ones show two communities: Lemno paucicoctatae-Pistietum stratioitis, a Myriophyllum spicatum community. Eichhornia crassipes is quite rare despite its presence on the Lomé lagoon and on the Mono river. Water chemical analysis sh...
Article
The natural undergrowth of Teak (Tectona grandis L. f.) plantations in south and center Benin has been assessed. The Icacina trichantha-plant community is identified in Djigbé forest. On the basis of ten representative phytosociological relevés, this plant community is composed of 93 species with a mean of 37 species per relevé. The analysis of spe...
Article
Full-text available
Forest management consists in anthropogenic disturbances that are able to modulate ecological features, resource availability and successional patterns. Plant communities are thus expected to react differently to contrasted silvicultural systems. We compared plant species composition between stands submitted to a traditional management since many c...
Article
Five species of Combretaceae growing in Togo were investigated for their antifungal activity against 20 pathogenic fungi (10 yeast and 10 filamentous fungi). The five hydroethanolic extracts of Terminalia glaucescens and Anogeissus leiocarpus appeared to be the most active, their MICs ranging from 0.25 mg/ml to 4 mg/ml. The results confirm the trad...
Article
Summary • Disturbances and resource availability are key factors affecting plant diversity in managed forests. As disturbance regimes vary among silvicultural systems and may simultaneously affect different types of resources, effects on biodiversity can be unpredictable. • We compared the effects of two silvicultural systems on understorey plant d...
Article
After several investigations on the savanna and forest of Ngotto (Central African Republic), we propose a phytogeographical interpretation of our data on the systematic (level family), the biological forms, the dispersion of diaspores and phytogeographical elements spectra. These spectra are given regarding both formation type (savanna, forest) to...
Article
Correlations between terricolous bryophyte- and lichen- vegetation and edaphic parameters (pH, organic matter, nitrogen, Carbon/nitrogen ratio, Cation Exchange Capacity, and Cd, Pb and Zn soil contents) of soils submitted to a gradient of metal contamination in northern France were performed using statistical analysis. Six classes can be distinguis...
Article
The Ngotto forest is located in the south-west of the Central African Republic. For a better knowledge of the phytodiversity of this forest and to understand the factors by which it is determined, a phytogeographical interpretation of the data gathered is proposed on the basis of systematics (level of the family), biological types, types of diaspor...
Article
In a phytosociological study of some beaches on the sea-shore of Togo we described the Remireo maritimae-Canavalietum roseae (easily disturbed by anthropization). the Kyllingo peruvianae - Phyletum nodiflorae, some others herbaceous communities (with Schizachyrium pulchellum or with Paspalum distichum, Blutaparon vermiculare and Sesuvium portulacas...