Pierre Marle

Pierre Marle
French National Centre for Scientific Research | CNRS · UMR 5023 - Laboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés

Freshwater Biologist

About

26
Publications
4,533
Reads
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24
Citations
Additional affiliations
April 2015 - present
University of Geneva
Position
  • Phd student / Research assistant
February 2014 - April 2014
Museum of Zoology Lausanne
Position
  • Research Assistant
Education
September 2013 - September 2015
University of Franche-Comté
Field of study
  • Aquatic Ecology and Biology

Publications

Publications (26)
Data
Chironomid larvae are useful bioindicators to assess environmental degradation and pollution of freshwater ecosystems. Specifically, mouthparts deformities in chironomid larvae are considered as indicators of environmental stress (e.g. caused by water pollution). In this study, a total of 50 chironomid larvae from a small karstic stream were examin...
Article
Full-text available
Two new species of Bungona, belonging to the subgenera Chopralla Waltz & McCafferty, 1987 and Centroptella Braasch & Soldán, 1980, are described based on larvae from Kalimantan (Borneo, Indonesia). Bungona (Centroptella) papilionodes n. Sp. is the third species described for the subgenus. It can be distinguished from Bungona (Centroptella) longiset...
Article
Full-text available
The aim of the study was to carry out a comparative approach of two floodplain reaches of the French Upper-Rhône River, on the basis of their caddisfly assemblages. Caddisflies were sampled in 2014 and 2015 in the adult stage via light-traps. A comparison with historical data in the same sector was also carried out. Our results exemplified how side...
Method
Full-text available
A large-scale river restoration programme was launched on the French Rhône in 1998. Among other objectives, it seeks to enhance the lateral connectivity between the river and its floodplain and the diversity of secondary-channels. Caddisflies are recognized as valuable indicators to assess aquatic ecosystems in general but only few studies concerne...
Method
Full-text available
La section Biologie des Eaux de la division Protection des Eaux de l’Etat de Vaud a développé à partir du module SMG Macrozoobenthos de la Confédération une méthode simplifiée, dénommée Indice biologique rapide (IBR) qui a la particularité de livrer rapidement des résultats en cas de perturbation de la qualité d’un cours d’eau telle qu’une pollutio...
Article
Permanent ponds are valuable freshwater systems and biodiversity hotspots. They provide diverse ecosystem services (ES), including water quality improvement and supply, food provisioning and biodiversity support. This is despite being under significant pressure from multiple anthropogenic stressors and the impacts of ongoing global change. However,...
Article
Full-text available
β$$ \beta $$‐Diversity, commonly defined as the compositional variation among localities that links local diversity (α‐diversity) and regional diversity (γ‐diversity), can arise from two different ecological phenomena, namely the spatial species turnover (i.e., species replacement) and the nestedness of assemblages (i.e., species loss). However, an...
Article
Full-text available
1. Large river floodplains are dynamic environments, where alternating low and high flows are key ecological processes shaping aquatic biota. As a result of fluctuations in flow in floodplain channels, the diversity of benthic assemblages is assumed to result from the balance between surface flow connections, which are dominant during high flows, a...
Presentation
Full-text available
Permanent ponds represent important habitats for aquatic biodiversity and provide vital ecosystem services as key elements for blue landscape connectivity. Although mostly neglected in management programmes, protection schemes and biodiversity studies in general, ponds constitute habitats with high α- and spatial β-diversity, providing unique habit...
Presentation
Ponds, whilst being mostly neglected in management and protection plans, can constitute habitats with high α- and β-diversity, including many rare and endemic species. In heterogeneous landscapes, ponds can also contribute to habitat connectivity and enhance γ-diversity whilst delivering many ecosystem services. Semi-aquatic insects are one of the...
Poster
Full-text available
Whilst being small and shallow, permanent ponds provide valuable habitats for a multitude of organisms as well as provide habitats for animals like aquatic insects and others, including many rare species. These ponds, which were often neglected in limnological studies, were the core of our joint project, the 3rd freshwater project - EUROPONDS in or...
Article
Full-text available
Body size is perhaps the most fundamental property of an organism and its relationship with abundance is one of the most studied relationships in ecology. Although numerous studies have examined these relationships in local communities, few have investigated how they vary at different temporal and spatial scales. We investigated the relationship be...
Preprint
Full-text available
In large river floodplain the availability of resources to the fish fauna is highly variable as a consequence of environmental change. However, relatively little is known about the food preferences for a young-of-year fish ("YOY" hereafter) to find suitable habitat to settle, feed and survive. Here, we have investigated the composition of planktoni...
Poster
Full-text available
Within the EUROPONDS project we looked into the contribution of aquatic invertebrates to terrestrial ecosystems, which are globally declining, in various countries all over Europe. Our study encompassed a restored quarry in Alpedrete, Madrid, Spain, a landscape destined for livestock activities. We hypothesized that the emergence during autumn and...
Article
Full-text available
We present a novel meta-community approach to explore the influence of species traits, such as adult body size, larval feeding type and microhabitat, as well as larval macrohabitat (main river channel vs. floodplain water bodies) on the concentration of total Hg accumulated ([THg]) in assemblages of adult caddisflies. We analyzed [THg] in 157 light...
Poster
Full-text available
We present a new meta-community approach to explore the influence of species traits, such as adult body size, larval feeding type and micro-habitat, as well as larval macrohabitat (main river channel vs. floodplain water bodies) on the concentration of Hg accumulated [THg] in assemblages of adult caddisflies. We analyzed [THg] in 157 light-trapped...
Article
Full-text available
Freshwater biodiversity loss is a major concern, and global warming is already playing a significant role in species extinctions. Our main goal was to predict climate change impacts on aquatic insect species distribution and richness in Swiss running waters according to two climate change scenarios (RCP2.6 and RCP8.5), using different modeling appr...
Article
Full-text available
The high biotic diversity supported by floodplains is ruled by the interplay of geomorphic and hydrological processes at various time scales, from daily fluctuations to decennial successions. Because understanding such processes is a key question in river restoration, we attempted to model changes in taxonomic richness in an assemblage of 58 macroi...
Chapter
Springs are ecosystems influenced by the exposure of groundwater at the Earth's surface. Springs are abundant and have played important, highly interactive ecological, cultural, and socio-economic roles in arid, mesic, and subaqueous environments throughout human evolution and history. However, springs also are widely regarded as being highly threa...
Poster
Full-text available
This poster was a contribution by Juan Rubio-Ríos and Encarnación Fenoy from EUROPONDS project to the online Symposium about "Researches in Experimental Sciences" ("IX Simposio de Investigación en Ciencias Experimentales") from University of Almería in Spain.
Article
Full-text available
Biotic homogenization represents a major concern in ecology but relatively few studies have assessed climate change impacts on assemblage patterns of freshwater species. Our main goals were to predict the current and future (years 2035, 2060 and 2085) patterns of mayfly, stonefly and caddisfly (EPT) diversity across Switzerland from macroscale envi...
Article
Cyrnus cintranus is one of five Cyrnus species with distribution ranges restricted to western Europe. In this paper, we redescribe the poorly defined female of C. cintranus. We also draw attention to the existence of a previously unmentioned morphological feature that aids significantly in the identification of the female of C. cintranus, separatin...

Questions

Question (1)
Question
The Bayesian methods (e.g. MixSIAR) use the mean and standard deviation of each resource in the estimation of resource contribution in diets.
In my case, I have two main resources: littoral and pelagic.
For the pelagic one, I have only the d13C and d15N mean, resulting in loss of observed variation (SD) for the pelagic resource.
Other resource (multi-sample), littoral, have been processed in order to have the mean and the SD.
Do you know a diet estimation method in line with this case?
Thanks for helping
Best regards
Pierre

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Projects

Projects (2)
Project
EUROPONDS was selected as the 3rd fresh project, a joint call of the European Federation of Freshwater Sciences (EFFS) board and the EFFS Societies as well as the European Fresh and Young Researchers (EFYR) and representatives of the Fresh Blood for Fresh Water (FBFW). To evaluate the often overlooked ecological contributions and ecosystem services provided by ponds across Europe, we will investigate the taxonomy and biomass (‘biodiversity’) and the energy content and dietary quality, as measured by total lipids and their fatty acids (‘nutritional value for subsequent consumers’) of emerging insects from ponds across Europe. Funding for this project is provided by the EFFS-federated societies.
Project
- Hydro-ecological model to explore interactions between flow regime and invertebrate communities - Trophic ecology in fish nurseries - Transfers and effects of contaminants across an alluvial food chain