Détail de l'auteur
Auteur Sandrine Petit (1969-) |
Documents disponibles écrits par cet auteur (8)
Affiner la rechercheAgriculture, prairies de fauche et environnement dans le massif jurassien / Sandrine Petit in Espaces naturels, 33 (01/2011)
Titre : Agriculture, prairies de fauche et environnement dans le massif jurassien Type de document : Imprimé Auteurs : Sandrine Petit (1969-) ; Philippe Fleury ; Jean-Yves Vansteelant Année de publication : 2011 Article en page(s) : 47-48 Langues : Français (fre) Catégories : [CBNPMP-Thématique] Prairies humides et hautes communautés herbeuses Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148381
in Espaces naturels > 33 (01/2011) . - 47-48Petit, Sandrine (1969-), Fleury, Philippe, Vansteelant, Jean-Yves 2011 Agriculture, prairies de fauche et environnement dans le massif jurassien. Espaces naturels, 33: 47-48.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité R10264 P-549 Revue Centre de documentation Revues Consultable 
Titre : Les apports de l'écologie du paysage pour comprendre la dynamique de la flore adventice Type de document : Numérique Auteurs : Sandrine Petit (1969-), Auteur ; Claudine Thenail, Auteur ; Bruno Chauvel, Auteur ; Jacques Baudry (1952-), Auteur Année de publication : 2008 Article en page(s) : 49-60 Langues : Français (fre) Catégories : [CBNPMP-Thématique] Mauvaises herbes
[CBNPMP-Thématique] Science du paysage, division de l'espace en individualités, éléments du paysageRésumé : Les recherches menées en écologie du paysage mettent en évidence des effets probants de la structure du paysage sur la dynamique de la flore et de la faune. Dans le contexte d’une recherche de systèmes de cultures permettant un usage réduit des herbicides, il est légitime de s’interroger sur les effets potentiels de l’organisation de ces systèmes dans l’espace et dans le temps au sein d’un territoire sur la flore adventice. On sait aussi qu’une majorité des adventices utilisent des milieux autres que la parcelle cultivée et que la prise en compte des ces espaces hors champ est nécessaire à la compréhension de la dynamique de la flore adventice. Cet article propose une synthèse des connaissances actuelles sur le rôle des structures paysagères sur la dynamique de la flore adventice. Il identifie les avancées qui sont nécessaires pour pouvoir répondre à des questions relatives à l’effet de l’organisation spatio-temporelle des mosaïques agricoles (parcelles et espaces hors-champ) sur la flore adventice et présente des méthodes de description de ces mosaïques et de leur gestion qui relèvent de l’articulation entre l’écologie du paysage et l’agronomie. Identifiant : HAL : hal-02665450 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=144183
in Innovations agronomiques > 3 (2008) . - 49-60Petit, Sandrine (1969-), Thenail, Claudine, Chauvel, Bruno, Baudry, Jacques (1952-) 2008 Les apports de l'écologie du paysage pour comprendre la dynamique de la flore adventice. Innovations agronomiques, 3: 49-60.Documents numériques
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Article (2008)URL
Titre : Assessing the impacts of agricultural intensification on biodiversity : a British perspective Type de document : Imprimé Auteurs : Leslie George Firbank ; Sandrine Petit (1969-) ; Simon M. Smart ; Alasdair Blain ; Robert Fuller Année de publication : 2008 Article en page(s) : 777-787 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Incidence des activités agricoles Résumé : Agricultural intensification is best considered as the level of human appropriation of terrestrial net primary production. The global value is set to increase from 30%, increasing pressures on biodiversity. The pressures can be classified in terms of spatial scale, i.e. land cover, landscape management and crop management. Different lowland agricultural landscapes in Great Britain show differences among these pressures when habitat diversity and nutrient surplus are used as indicators. Eutrophication of plants was correlated to N surplus, and species richness of plants correlated with broad habitat diversity. Bird species diversity only correlated with habitat diversity when the diversity of different agricultural habitats was taken into account. The pressures of agricultural change may be reduced by minimizing loss of large habitats, minimizing permanent loss of agricultural land, maintaining habitat diversity in agricultural landscapes in order to provide ecosystem services, and minimizing pollution from nutrients and pesticides from the crops themselves. While these pressures could potentially be quantified using an internationally consistent set of indicators, their impacts would need to be assessed using a much larger number of locally applicable biodiversity indicators. Identifiant : DOI : 10.1098/rstb.2007.2183 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=155173
in Philosophical Transactions Royal Society London B > 363 (1492) (27/02/2008) . - 777-787Firbank, Leslie George, Petit, Sandrine (1969-), Smart, Simon M., Blain, Alasdair, Fuller, Robert 2008 Assessing the impacts of agricultural intensification on biodiversity : a British perspective. Philosophical Transactions Royal Society London B, 363(1492): 777-787.
Titre : A framework to estimate the contribution of weeds to the delivery of ecosystem (dis)services in agricultural landscapes Type de document : Imprimé Auteurs : Séverin Yvoz ; Stéphane Cordeau ; Alexandre Ploteau ; Sandrine Petit (1969-) Année de publication : 2021 Article en page(s) : 108321 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Messicole
[CBNPMP-Thématique] BiodiversitéRésumé : There is a pressing need for indicators and methods to quantify the provision of ecosystem services as a prerequisite to identify management options that optimize trade-offs between services. Arable weeds provide multiple services and are thus a good model to evaluate such trade–offs. This flora provides trophic resources (flowers or seeds) that support pollinators and pest natural enemies (pollination and pest control services) but can also be harmful for crop production (disservice). To date, few indicators are available to quantify the contribution of weeds to ecosystem services or their harmfulness, and no indicators account for intraspecific variability in weed traits that result from contrasting growing conditions, notably the location of weeds within fields (field edge vs field core) and crop type. Here, we developed nine proxies for potential weed harmfulness (competition, harvest difficulties and future weed infestations) and weed contributions to resources provision to pollinators (bees, bumblebees and hoverflies) and pest natural enemies (carabid beetles, birds and parasitoid wasps). These nine proxies accounted for individual weed plant response to growing conditions (combination of within-field location by crop type) for 155 weed species, resulting in 967 unique situations (combinations of species by within-field locations by crop types). Apart from harvest difficulties, all proxies were positively correlated, i.e. harmfulness increased when services increased. Weed plants located on field edges had greater contributions to all proxies than those located in field cores, especially in cereal crops. We identified that small weed species with short life cycles and low competitiveness, presented the optimum proxy combination, i.e. high services and low harmfulness. The development of these proxies and the proposed framework provide new avenues for assessing trade-offs between multiple ecosystem services at different temporal (crop sequence) and spatial scales (landscape). Identifiant : DOI : 10.1016/j.ecolind.2021.108321 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150404
in Ecological indicators > 132 (2021) . - 108321Yvoz, Séverin, Cordeau, Stéphane, Ploteau, Alexandre, Petit, Sandrine (1969-) 2021 A framework to estimate the contribution of weeds to the delivery of ecosystem (dis)services in agricultural landscapes. Ecological indicators, 132: 108321.Documents numériques
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Article (2021)URLA specialist-generalist classification of arable flora and its response to chanes in agricultural practices / Guillaume Fried
Titre : A specialist-generalist classification of arable flora and its response to chanes in agricultural practices Type de document : Tiré à part de revue Auteurs : Guillaume Fried, Auteur ; Sandrine Petit (1969-), Auteur ; Xavier Reboud, Auteur Importance : 20-31 Langues : Français (fre) Résumé : Theory in ecology points out the potential link between the degree of specialisation of organisms and their responses to disturbances and suggests that this could be a key element for understanding the assembly of communities. We evaluated this question for the arable weed flora as this group has scarcely been the focus of ecological studies so far and because weeds are restricted to habitats characterised by very high degrees of disturbance. As such, weeds offer a case study to ask how specialization relates to abundance and distribution of species in relation to the varying disturbance regimes occurring in arable crops. We used data derived from an extensive national monitoring network of approximately 700 arable fields scattered across France to quantify the degree of specialisation of 152 weed species using six different ecological methods. We then explored the impact of the level of disturbance occurring in arable fields by comparing the degree of specialisation of weed communities in contrasting field situations. The classification of species as specialist or generalist was consistent between different ecological indices. When applied on a large-scale data set across France, this classification highlighted that monoculture harbour significantly more specialists than crop rotations, suggesting that crop rotation increases abundance of generalist species rather than sets of species that are each specialised to the individual crop types grown in the rotation. Applied to a diachronic dataset, the classification also shows that the proportion of specialist weed species has significantly decreased in cultivated fields over the last 30 years which suggests a biotic homogenization of agricultural landscapes. This study shows that the concept of generalist/specialist species is particularly relevant to understand the effect of anthropogenic disturbances on the evolution of plant community composition and that ecological theories developed in stable environments are valid in highly disturbed environments such as agro-ecosystems. The approach developed here to classify arable weeds according to the breadth of their ecological niche is robust and applicable to a wide range of organisms. It is also sensitive to disturbance regime and we show here that recent changes in agricultural practices, i.e. increased levels of disturbance have favoured the most generalist species, hence leading to biotic homogenisation in arable landscapes. Identifiant : DOI : 10.1186/1472-6785-10-20 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=144171 Fried, Guillaume, Petit, Sandrine (1969-), Reboud, Xavier [sans date] A specialist-generalist classification of arable flora and its response to chanes in agricultural practices. BMC Ecology, 10 : 20-31.Documents numériques
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