Colin Fontaine

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Müllerian mimicry among bees and wasps: a review of current knowledge and future avenues of research

Paul Chatelain, Marianne Elias, Colin Fontaine, Claire Villemant, more

Biological Reviews > 98 > 4 > 1310 - 1328

Many bees and stinging wasps, or aculeates, exhibit striking colour patterns or conspicuous coloration, such as black and yellow stripes. Such coloration is often interpreted as an aposematic signal advertising aculeate defences: the venomous sting. Aposematism can lead to Müllerian mimicry, the convergence of signals among different species unpalatable to predators. Müllerian mimicry has been extensively...

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Mutualistic interactions shape global spatial congruence and climatic niche evolution in Neotropical mimetic butterflies

Maël Doré, Keith Willmott, Sebastien Lavergne, Nicolas Chazot, more

Ecology Letters > 26 > 6 > 843 - 857

Understanding the mechanisms underlying species distributions and coexistence is both a priority and a challenge for biodiversity hotspots such as the Neotropics. Here, we highlight that Müllerian mimicry, where defended prey species display similar warning signals, is key to the maintenance of biodiversity in the c. 400 species of the Neotropical butterfly tribe Ithomiini (Nymphalidae: Danainae)...

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Mechanisms underpinning community stability along a latitudinal gradient: Insights from a niche‐based approach

Luke Christopher Evans, Yolanda Melero, Reto Schmucki, Philipp H. Boersch‐Supan, more

Global Change Biology > 29 > 12 > 3271 - 3284

At large scales, the mechanisms underpinning stability in natural communities may vary in importance due to changes in species composition, mean abundance, and species richness. Here we link species characteristics (niche positions) and community characteristics (richness and abundance) to evaluate the importance of stability mechanisms in 156 butterfly communities monitored across three European...

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Trait matching and sampling effort shape the structure of the frugivory network in Afrotropical forests

Clémentine Durand‐Bessart, Norbert J. Cordeiro, Colin A. Chapman, Katharine Abernethy, more

New Phytologist > 237 > 4 > 1446 - 1462

Frugivory in tropical forests is a major ecological process as most tree species rely on frugivores to disperse their seeds. However, the underlying mechanisms driving frugivore–plant networks remain understudied. Here, we evaluate the data available on the Afrotropical frugivory network to identify structural properties, as well as assess knowledge gaps. We assembled a database of frugivory interactions...

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Anthropogenic pressures coincide with Neotropical biodiversity hotspots in a flagship butterfly group

Maël Doré, Keith Willmott, Boris Leroy, Nicolas Chazot, more

Diversity and Distributions > 28 > 12 > 2912 - 2930

Aim The biodiversity crisis has highlighted the need to assess and map biodiversity in order to prioritize conservation efforts. Clearwing butterflies (tribe Ithomiini) have been proposed as biological indicators for habitat quality in Neotropical forests, which contain the world's richest biological communities. Here, we provide maps of different facets of Ithomiini diversity across the Neotropics...

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Interaction fidelity is less common than expected in plant–pollinator communities

Santiago A. Parra, Elisa Thébault, Colin Fontaine, Vasilis Dakos

Journal of Animal Ecology > 91 > 9 > 1842 - 1854

Pairs of plants and pollinators species sometimes consistently interact throughout time and across space. Such consistency can be interpreted as a sign of interaction fidelity, that is a consistent interaction between two species when they co‐occur in the same place. But how common interaction fidelity is and what determines interaction fidelity in plant–pollinator communities remain open questions...

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Bioclimatic context of species' populations determines community stability

Luke Christopher Evans, Yolanda Melero, Reto Schmucki, Philipp H. Boersch‐Supan, more

Global Ecology and Biogeography > 31 > 8 > 1542 - 1555

Aim It is important to understand the factors affecting community stability because ecosystem function is increasingly at risk from biodiversity loss. Here, we evaluate how a key factor, the position of local environmental conditions within the thermal range of the species, influences the stability of butterfly communities at a continental scale. Location Spain, UK and Finland. Time period 1999–2017...

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Species richness and food‐web structure jointly drive community biomass and its temporal stability in fish communities

Alain Danet, Maud Mouchet, Willem Bonnaffé, Elisa Thébault, more

Ecology Letters > 24 > 11 > 2364 - 2377

Biodiversity–ecosystem functioning and food‐web complexity–stability relationships are central to ecology. However, they remain largely untested in natural contexts. Here, we estimated the links among environmental conditions, richness, food‐web structure, annual biomass and its temporal stability using a standardised monitoring dataset of 99 stream fish communities spanning from 1995 to 2018. We...

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Phenological traits foster persistence of mutualistic networks by promoting facilitation

François Duchenne, Colin Fontaine, Elsa Teulière, Elisa Thébault, more

Ecology Letters > 24 > 10 > 2088 - 2099

Morphological and phenological traits are key determinants of the structure of mutualistic networks. Both traits create forbidden links, but phenological traits can also decouple interaction in time. While such difference likely affects the indirect effects among species and consequently network persistence, it remains overlooked. Here, using a dynamic model, we show that networks structured by phenology...

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Relative effects of anthropogenic pressures, climate, and sampling design on the structure of pollination networks at the global scale

Maël Doré, Colin Fontaine, Elisa Thébault

Global Change Biology > 27 > 6 > 1266 - 1280

Pollinators provide crucial ecosystem services that underpin to wild plant reproduction and yields of insect‐pollinated crops. Understanding the relative impacts of anthropogenic pressures and climate on the structure of plant–pollinator interaction networks is vital considering ongoing global change and pollinator decline. Our ability to predict the consequences of global change for pollinator assemblages...

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Long‐term effects of global change on occupancy and flight period of wild bees in Belgium

François Duchenne, Elisa Thébault, Denis Michez, Maxence Gérard, more

Global Change Biology > 26 > 12 > 6753 - 6766

Global change affects species by modifying their abundance, spatial distribution, and activity period. The challenge is now to identify the respective drivers of those responses and to understand how those responses combine to affect species assemblages and ecosystem functioning. Here we correlate changes in occupancy and mean flight date of 205 wild bee species in Belgium with temporal changes in...

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Advancing our understanding of ecological stability

Sonia Kéfi, Virginia Domínguez‐García, Ian Donohue, Colin Fontaine, more

Ecology Letters > 22 > 9 > 1349 - 1356

The concept of ecological stability occupies a prominent place in both fundamental and applied ecological research. We review decades of work on the topic and examine how our understanding has progressed. We show that our understanding of stability has remained fragmented and is limited largely to simple or simplified systems. There has been a profusion of metrics proposed to quantify stability, of...

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Rush hours in flower visitors over a day–night cycle

Eva Knop, Christopher Gerpe, Remo Ryser, Fabian Hofmann, more

Insect Conservation and Diversity > 11 > 3 > 267 - 275

Most research on pollination has focussed on a subset of insect taxa within a narrow time window during daylight hours. As a consequence, we have a limited understanding of the diversity and activity of flower visitors during the night or belonging to taxa other than bees or syrphid flies. Here, we quantified the abundance and species richness of flower visitors in ruderal meadows over repeated...

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Floral morphology as the main driver of flower-feeding insect occurrences in the Paris region

James Desaegher, Sophie Nadot, Colin Fontaine, Bruno Colas

Urban Ecosystems > 2018 > 21 > 4 > 585-598

Through the rapid expansion worldwide of impervious areas and habitat fragmentation, urbanization has strong consequences that must be understood to efficiently manage biodiversity. We studied the effects of urbanization on flower-feeding insects by using data from a citizen science program in the Parisian region. We analysed the occurrence of insects from 46 different families on flowers of different...

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Fixism and conservation science

Alexandre Robert, Colin Fontaine, Simon Veron, Anne‐Christine Monnet, more

Conservation Biology > 31 > 4 > 781 - 788

The field of biodiversity conservation has recently been criticized as relying on a fixist view of the living world in which existing species constitute at the same time targets of conservation efforts and static states of reference, which is in apparent disagreement with evolutionary dynamics. We reviewed the prominent role of species as conservation units and the common benchmark approach to conservation...

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Stability of a diamond-shaped module with multiple interaction types

Alix M. C. Sauve, Colin Fontaine, Elisa Thébault

Theoretical Ecology > 2016 > 9 > 1 > 27-37

Indirect interactions among species emerge from the complexity of ecological networks and can strongly affect the response of communities to disturbances. To determine these indirect interactions and understand better community dynamics, ecologists focused on the interactions within small sets of species or modules. Thanks to their analytical tractability, modules bring insights on the mechanisms...

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Comparing the conservatism of ecological interactions in plant–pollinator and plant–herbivore networks

Colin Fontaine, Elisa Thébault

Population Ecology > 2015 > 57 > 1 > 29-36

Conservatism in species interaction, meaning that related species tend to interact with similar partners, is an important feature of ecological interactions. Studies at community scale highlight variations in conservatism strength depending on the characteristics of the ecological interaction studied. However, the heterogeneity of datasets and methods used prevent to compare results between mutualistic...

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Structure–stability relationships in networks combining mutualistic and antagonistic interactions

Alix M. C. Sauve, Colin Fontaine, Elisa Thébault

Oikos > 123 > 3 > 378 - 384

The relationship between the structure of ecological networks and community stability has been studied for decades. Recent developments highlighted that this relationship depended on whether interactions were antagonistic or mutualistic. Different structures promoting stability in different types of ecological networks, i.e. mutualistic or antagonistic, have been pointed out. However, these findings...

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FORUM: Sustaining ecosystem functions in a changing world: a call for an integrated approach

Hiroshi Tomimatsu, Takehiro Sasaki, Hiroko Kurokawa, Jon R. Bridle, more

Journal of Applied Ecology > 50 > 5 > 1124 - 1130

With ever‐increasing human pressure on ecosystems, it is critically important to predict how ecosystem functions will respond to such human‐induced perturbations. We define perturbations as either changes to abiotic environment (e.g. eutrophication, climate change) that indirectly affects biota, or direct changes to biota (e.g. species introductions). While two lines of research in ecology, biodiversity–ecosystem...

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Evolutionary History and Ecological Processes Shape a Local Multilevel Antagonistic Network

Marianne Elias, Colin Fontaine, F.J. Frank van Veen

Current Biology > 2013 > 23 > 14 > 1355-1359

Uncovering the processes that shape the architecture of interaction networks is a major challenge in ecology. Studies have consistently revealed that more closely related taxa tend to show greater overlap in interaction partners, fuelling the idea that interactions are phylogenetically conserved [1–8]. However, local ecological processes such as exploitative or apparent competition (indirect interactions)...

INFONA - science communication portal

Search results for: Colin Fontaine

Müllerian mimicry among bees and wasps: a review of current knowledge and future avenues of research

Mutualistic interactions shape global spatial congruence and climatic niche evolution in Neotropical mimetic butterflies

Mechanisms underpinning community stability along a latitudinal gradient: Insights from a niche‐based approach

Trait matching and sampling effort shape the structure of the frugivory network in Afrotropical forests

Anthropogenic pressures coincide with Neotropical biodiversity hotspots in a flagship butterfly group

Interaction fidelity is less common than expected in plant–pollinator communities

Bioclimatic context of species' populations determines community stability

Species richness and food‐web structure jointly drive community biomass and its temporal stability in fish communities

Phenological traits foster persistence of mutualistic networks by promoting facilitation

Relative effects of anthropogenic pressures, climate, and sampling design on the structure of pollination networks at the global scale

Long‐term effects of global change on occupancy and flight period of wild bees in Belgium

Advancing our understanding of ecological stability

Rush hours in flower visitors over a day–night cycle

Floral morphology as the main driver of flower-feeding insect occurrences in the Paris region

Fixism and conservation science

Stability of a diamond-shaped module with multiple interaction types

Comparing the conservatism of ecological interactions in plant–pollinator and plant–herbivore networks

Structure–stability relationships in networks combining mutualistic and antagonistic interactions

FORUM: Sustaining ecosystem functions in a changing world: a call for an integrated approach

Evolutionary History and Ecological Processes Shape a Local Multilevel Antagonistic Network

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