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Auteur Stéphane Cordeau |
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A framework to estimate the contribution of weeds to the delivery of ecosystem (dis)services in agricultural landscapes / Séverin Yvoz in Ecological indicators, 132 (2021)
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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-Thèmes] Messicole
[CBNPMP-Thèmes] 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). Lien pérenne : 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, S., Cordeau, S., Ploteau, A., Petit, S. 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
Consultable
Article (2021)URL Weed seeds ability to emerge on the soil surface / Stéphane Cordeau (2015)
est un extrait de Symposium Weed management in changing environments (2015 ; Montpellier) 17th European weed research society symposium, EWRS 2015, 22-26 June 2015, Montpellier SupAgro, France / European weed research society (2015)
Titre : Weed seeds ability to emerge on the soil surface Type de document : Extrait d'ouvrage Auteurs : Stéphane Cordeau ; Daphné Lizon-Au-Ciré ; Carole Reibel ; Florence Strbik ; F. Duguet ; Annick Matejicek ; Jean-Philippe Guillemin Année de publication : 2015 Importance : p. 87 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Germination : généralités
[CBNPMP-Thèmes] MalherbologieRésumé : Annual weeds have to produce seeds each year to maintain their populations. These seeds fall on the soil surface. Seeds exposed to light during their moistening (i.e. caused by rain) better germinate than seeds in the darkness (i.e. buried). However, rare studies quantified the unique and combined effects of light, moisture and burial depth on the germination process. We investigated, in a greenhouse experiment in 2014, the impact of seed moisture (Moistened vs. Dried), light during moistening (Darkness vs. Light) and burial depth (Buried vs. Surface) on germination of 12 annual weed species contrasted on their seed traits and germination periods (Alopecurus myosuroides Huds., Amaranthus retroflexus L., Avena fatua L., Bromus sterilis L., Capsella bursapastoris (L.) Medik., Cyanus segetum L., Chenopodium album L., Geranium dissectum L., Poa annua L., Sonchus asper (L.) Hill, Veronica persica Poir., Vulpia myuros (L.) C.C.GME L.). Six modalities were tested (with 5 replicates): MDS (moistened seeds in darkness and then placed on the soil surface), MLS (moistened in light and placed on the surface), DLS (dried in light and placed on the surface), MDB (moistened in darkness and then 0.5 cm-buried), MLB (moistened in light and 0.5 cm-buried), DLB (dried in light and 0.5 cm-buried). Datasets were analysed with generalized linear model (GLM, binomial distribution). Lien pérenne : HAL : hal-01871771 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=85772 Cordeau, S., Lizon-Au-Ciré, D., Reibel, C., Strbik, F., Duguet, F., Matejicek, A., Guillemin, J.P. 2015. Weed seeds ability to emerge on the soil surface. In: Symposium Weed management in changing environments (2015 ; Montpellier) 17th European weed research society symposium, EWRS 2015, 22-26 June 2015, Montpellier SupAgro, France. AFPP = Association française de protection des plantes, Alfortville: 87.