Integrating farming techniques in an ecological matrix model: Implementation on the primrose (Primula vulgaris)
Autor: | D. Le Cœur, A. Fargue-Lelièvre, Jacques Baudry |
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Přispěvatelé: | Sciences pour l'Action et le Développement : Activités, Produits, Territoires (SADAPT), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, SAD Paysage (SAD Paysage), AGROCAMPUS OUEST-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) |
Jazyk: | angličtina |
Rok vydání: | 2011 |
Předmět: |
0106 biological sciences
Flora Population Biodiversity Woodland Biology 010603 evolutionary biology 01 natural sciences Grassland roadside management population dynamics population growth rate education 2. Zero hunger geography education.field_of_study geography.geographical_feature_category business.industry Ecology Ecological Modeling 15. Life on land farm management Primula vulgaris biology.organism_classification primula vulgaris Agriculture leslie matrix model [SDE.BE]Environmental Sciences/Biodiversity and Ecology business Cropping 010606 plant biology & botany |
Zdroj: | Ecological Modelling Ecological Modelling, Elsevier, 2011, 222 (4), pp.1002-1015. ⟨10.1016/j.ecolmodel.2010.11.025⟩ |
ISSN: | 0304-3800 |
Popis: | Several studies have proven the importance of field margins in sustaining biodiversity and other work has been done on the effect of field management on field margin flora. However few models have been built to predict the effects of field management on the flora. Our project addresses this need for a model capable of predicting the effect of cropping techniques and their timing on the flora of field margins. Primula vulgaris is a biodiversity indicator, characteristic of undisturbed flora and found in field margins and woodlands: its population has been declining for several years. We created a temporal matrix model of P. vulgaris populations on field margins, taking into account the effects of field, field margin and roadside management based on literature and expert knowledge. We then analysed its sensitivity to demographic parameters by comparing lambda (growth rate) sensitivity and elasticity. We compared the management parameter effect using the relative growth rate of the population after 6 years of simulation. Sensitivity analysis to biological parameters showed the importance of adult survival and seed production and germination. Results show that P. vulgaris is particularly sensitive to broad-spectrum herbicides and that other management techniques like early mowing, scything and scrub-killer (diluted broad-spectrum herbicide or specific herbicide) are less aggressive. Our simulations show that management of cash crops in Brittany is too aggressive for P. vulgaris populations and that 4–5 years of grassland in the adjacent field are necessary to maintain populations. |
Databáze: | OpenAIRE |
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