About
26
Publications
10,834
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351
Citations
Citations since 2017
Introduction
See my website for more information: https://ronanmarrec.weebly.com/
Additional affiliations
September 2017 - present
October 2016 - August 2017
University of Toronto at Mississauga
Position
- Fellow
September 2015 - April 2016
Education
October 2011 - November 2014
September 2009 - June 2011
Publications
Publications (26)
Sustainable land-use planning should consider large-scale landscape connectivity. Commonly-used species-specific connectivity models are difficult to generalize for a wide range of taxa. In the context of multi-functional land-use planning, there is growing interest in species-agnostic approaches, modelling connectivity as a function of human lands...
Aim
The spatio‐temporal connectivity of forest patches in lowland agricultural landscapes and their age matter to explain current biodiversity patterns across regional as well as biogeographical extents, to the point that their effect exceeds the one of macroclimate for plant diversity in the understorey of temperate forests. Whether this remains t...
Forest microclimates contrast strongly with the climate outside forests. To fully understand and better predict how forests' biodiversity and functions relate to climate and climate change, microclimates need to be integrated into ecological research. Despite the potentially broad impact of microclimates on the response of forest ecosystems to glob...
To understand time‐lag dynamics in the response of biodiversity to contemporary environmental changes (e.g. macroclimate warming and atmospheric pollution), we need to consider former anthropogenic forcing factors such as past land uses and management practices that can have both compounding and confounding effects. This is especially true in Europ...
Intensive agriculture has profoundly altered biodiversity and trophic relationships in agricultural landscapes, leading to the deterioration of many ecosystem services such as pollination or biological control. Information on which spatio-temporal factors are simultaneously affecting crop pests and their natural enemies is required to improve conse...
Most statistical models of microclimate focus on the difference or ‘offset’ between standardized air temperatures (macroclimate) and those of a specific habitat such as forest understorey, grassland or under a log. However, these offsets can fluctuate from positive to negative over a single day such that common practice consists in aggregating data...
Trait-based community assembly studies have mostly been addressed along spatial gradients, and do not consider explicitly a fundamental dimension governing community assembly, the time. Nevertheless, such consideration seems particularly necessary in systems in which organisms have to face regular disturbances and rapid changes in vegetation phenol...
Although landscape spatial structure is known to influence spatial patterns of biodiversity, its effect on insect communities at higher trophic levels such as parasitoids remains poorly understood. This is particularly true in continuously distributed forests in which it can be difficult to identify clear boundaries among habitat patches. Using the...
Context Agroecosystems are dynamic, with yearly changing proportions of crops. Explicit consideration of this temporal heterogeneity is required to decipher population and community patterns but remains
poorly studied.
Objectives We evaluated the impact on the activity-density of two dominant carabid species (Poecilus cupreus and Anchomenus dorsal...
Land-use and climate change along with biological invasions are among the main drivers of changes in community structure. In the face of these challenges, conservation and restoration efforts in Alberta aim to promote efficient use of land, reduction of disturbances, and conservation of biodiversity and ecosystem services. However, successful manag...
Spatial and temporal variation of the processes driving the metacommunity structure of spruce budworm (Choristoneura fumiferana) associated parasitoids
Carabid beetles (Coleoptera: Carabidae) play an important role in agriculture as natural enemies of pests. The development and application of practical techniques for managing their populations is a central challenge for sustainable agriculture and depends on detailed knowledge of the ecology of individual species. However, this information is rela...
Poecilus cupreus (L.) (Coleoptera: Carabidae) is a typical polyphagous predator species on arable lands. In this study, 11 polymorphic microsatellite markers were developed from genomic DNA of P. cupreus. Genotypes of 87 individuals sampled from three localities in Western France were analyzed to characterize the polymorphism at each locus. The num...
Functional structure of carabid beetle communities in an agricultural landscape in Western France
Impact of the fragmentation in an agricultural landscape on the spatial genetic structure of populations of the land snail Cepaea hortensis
Les plantes sont sessiles et les flux génétiques entre populations sont donc limités. Cette faible mobilité renforce une sélection divergente dans des environnements contrastés. Par conséquent, on peut partir du principe que dans un milieu donné, les populations locales présentent une "fitness" supérieure à celle des populations non locales. Cepend...
Projects
Projects (2)
Through integrating the rich biodiversity and geospatial data generated by the Alberta Biodiversity Monitoring Institute (ABMI), my project aims at evaluating the impact of landscape structure on connectivity and community composition across taxonomic groups. The ultimate goal of this project is to provide a basis for taking into account landscape effects for predicting local species diversity, community composition, and resultant ecosystem services in Alberta’s ecosystems under current and future conditions.
