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Gippet JMW, Bates OK, Moulin J, Bertelsmeier C. The global risk of infectious disease emergence from giant land snail invasion and pet trade. Parasit Vectors 2023; 16:363. [PMID: 37848903 PMCID: PMC10580515 DOI: 10.1186/s13071-023-06000-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 10/06/2023] [Indexed: 10/19/2023] Open
Abstract
BACKGROUND Pathogen outbreaks mostly originate from animals, but some species are more likely to trigger epidemics. The giant land snail (Lissachatina fulica) is a widespread invader, a popular exotic pet, and a notorious vector of the rat lungworm, causing eosinophilic meningitis in humans. However, a comprehensive assessment of the risks of disease outbreak associated with this species is lacking. METHODS We assessed and mapped the risk of disease transmission associated with the invasion and pet trade of L. fulica. First, we conducted a review of the scientific literature to list all known L. fulica parasites and pathogens and query host-pathogen databases to identify their potential mammalian hosts. Then, to assess the potential for L. fulica to spread globally, we modelled its suitable climatic conditions and tested whether, within climatically suitable areas, the species tended to occur near humans or not. Finally, we used social media data to map L. fulica possession as an exotic pet and to identify human behaviours associated with increased risk of disease transmission. RESULTS Lissachatina fulica can carry at least 36 pathogen species, including two-thirds that can infect humans. The global invasion of L. fulica is climatically limited to tropical areas, but the species is strongly associated with densely populated areas where snails are more likely to enter in contact with humans. In temperate countries, however, climatic conditions should prevent L. fulica's spread. However, we show that in Europe, giant snails are popular exotic pets and are often handled with direct skin contact, likely increasing the risk of pathogen transmission to their owners. CONCLUSIONS It is urgent to raise public awareness of the health risks associated with L. fulica in both tropical countries and Europe and to regulate its trade and ownership internationally. Our results highlight the importance of accounting for multiple types of human-wildlife interactions when assessing risks of infectious disease emergence. Furthermore, by targeting the species most likely to spread pathogens, we show that it is possible to rapidly identify emerging disease risks on a global scale, thus guiding timely and appropriate responses.
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Affiliation(s)
- Jérôme M W Gippet
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland
| | - Olivia K Bates
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland
| | - Jérémie Moulin
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland
- Association OPPAL - Chemin de la Cotze 26, 1941 Vollèges, Switzerland
| | - Cleo Bertelsmeier
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland
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Gippet JMW, Sherpa Z, Bertelsmeier C. Reliability of social media data in monitoring the global pet trade in ants. Conserv Biol 2023; 37:e13994. [PMID: 36424881 DOI: 10.1111/cobi.14041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 09/27/2022] [Accepted: 11/16/2022] [Indexed: 05/30/2023]
Abstract
The global pet trade is a major risk to biodiversity and humans and has become increasingly globalized, diversified, digitalized, and extremely difficult to control. With billions of internet users posting online daily, social media could be a powerful surveillance tool. But it is unknown how reliably social media can track the global pet trade. We tested whether Instagram data predicted the geographic distribution of pet stores and the taxonomic composition of traded species in the emerging pet trade in ants (Hymenoptera, Formicidae). We visited 138 online stores selling ants as pets worldwide and recorded the species traded. We scraped ∼38,000 Instagram posts from ∼6300 users referencing ants as pets and analyzed comments on post and geolocation (available for ∼1800 users). We tested whether the number of Instagram users predicted the number of ant sellers per country and whether the species referenced as pets on Instagram matched the species offered in online stores, with a particular focus on invasive species. The location of Instagram users referencing ants as pets predicted the location of ant sellers across the globe (R2 = 0.87). Instagram data detected 439 of the 631 ant species traded in online stores (70%), including 59 of the 68 invasive species traded (87%). The number of Instagram users referencing a species was a good predictor of the number of sellers offering the species (R2 = 0.77). Overall, Instagram data provided affordable and reliable data for monitoring the emerging pet trade in ants. Easier access to these data would facilitate monitoring of the global pet trade and help implement relevant regulations in a timely manner.
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Affiliation(s)
- Jérôme M W Gippet
- Department of Ecology and evolution, University of Lausanne, Lausanne, Switzerland
| | - Zoé Sherpa
- Department of Ecology and evolution, University of Lausanne, Lausanne, Switzerland
| | - Cleo Bertelsmeier
- Department of Ecology and evolution, University of Lausanne, Lausanne, Switzerland
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Cayuela H, Gaillard JM, Vieira C, Ronget V, Gippet JMW, Garcia TC, Marais GAB, Lemaître JF. Sex differences in adult lifespan and aging rate across mammals: a test of the 'Mother Curse hypothesis'. Mech Ageing Dev 2023; 212:111799. [PMID: 36948470 DOI: 10.1016/j.mad.2023.111799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 03/15/2023] [Accepted: 03/17/2023] [Indexed: 03/24/2023]
Abstract
In many animal species, including humans, males have shorter lifespan and show faster survival aging than females. This differential increase in mortality between sexes could result from the accumulation of deleterious mutations in the mitochondrial genome of males due to the maternal mode of mtDNA inheritance. To date, empirical evidence supporting the existence of this mechanism - called the Mother Curse hypothesis - remains largely limited to a few study cases in humans and Drosophila. In this study, we tested whether the Mother Curse hypothesis accounts for sex differences in lifespan and aging rate across 128 populations of mammals (60 and 68 populations studied in wild and captive conditions, respectively) encompassing 104 species. We found that adult lifespan decreases with increasing mtDNA neutral substitution rate in both sexes in a similar way in the wild - but not in captivity. Moreover, the aging rate marginally increased with neutral substitution rate in males and females in the wild. Overall, these results indicate that the Mother Curse hypothesis is not supported across mammals. We further discuss the implication of these findings for our understanding of the evolution of sex differences in mortality and aging.
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Affiliation(s)
- Hugo Cayuela
- Université Lyon 1, CNRS, UMR 5558, Laboratoire de Biométrie et Biologie Evolutive, F-769622, Villeurbanne, France.
| | - Jean-Michel Gaillard
- Université Lyon 1, CNRS, UMR 5558, Laboratoire de Biométrie et Biologie Evolutive, F-769622, Villeurbanne, France
| | - Cristina Vieira
- Université Lyon 1, CNRS, UMR 5558, Laboratoire de Biométrie et Biologie Evolutive, F-769622, Villeurbanne, France
| | - Victor Ronget
- Université Lyon 1, CNRS, UMR 5558, Laboratoire de Biométrie et Biologie Evolutive, F-769622, Villeurbanne, France
| | - Jérôme M W Gippet
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland
| | - Thamar Conde Garcia
- Université Lyon 1, CNRS, UMR 5558, Laboratoire de Biométrie et Biologie Evolutive, F-769622, Villeurbanne, France
| | - Gabriel A B Marais
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661 Vairão, Portugal; Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, 4099-002 Porto, Portugal; BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal
| | - Jean-François Lemaître
- Université Lyon 1, CNRS, UMR 5558, Laboratoire de Biométrie et Biologie Evolutive, F-769622, Villeurbanne, France
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Gippet JMW, Rocabert C, Colin T, Grangier J, Tauru H, Dumet A, Mondy N, Kaufmann B. The observed link between urbanization and invasion can depend on how invasion is measured. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
- Jérôme M. W. Gippet
- Department of Ecology and Evolution University of Lausanne Lausanne Switzerland
| | - Charles Rocabert
- Synthetic and Systems Biology Unit Institute of Biochemistry Biological Research Centre Szeged Hungary
- Organismal and Evolutionary Biology Research Programme University of Helsinki Helsinki Finland
| | - Théotime Colin
- School of Life and Environmental Sciences Sydney Institute of Agriculture The University of Sydney Sydney New South Wales Australia
| | - Julien Grangier
- UMR5023 Ecologie des Hydrosystèmes, Naturels et Anthropisés ENTPE CNRS Université Lyon 1 Université de Lyon Villeurbanne, Lyon France
| | - Hugo Tauru
- UMR5023 Ecologie des Hydrosystèmes, Naturels et Anthropisés ENTPE CNRS Université Lyon 1 Université de Lyon Villeurbanne, Lyon France
| | - Adeline Dumet
- UMR5023 Ecologie des Hydrosystèmes, Naturels et Anthropisés ENTPE CNRS Université Lyon 1 Université de Lyon Villeurbanne, Lyon France
| | - Nathalie Mondy
- UMR5023 Ecologie des Hydrosystèmes, Naturels et Anthropisés ENTPE CNRS Université Lyon 1 Université de Lyon Villeurbanne, Lyon France
| | - Bernard Kaufmann
- UMR5023 Ecologie des Hydrosystèmes, Naturels et Anthropisés ENTPE CNRS Université Lyon 1 Université de Lyon Villeurbanne, Lyon France
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Gippet JMW, George L, Bertelsmeier C. Local coexistence of native and invasive ant species is associated with micro-spatial shifts in foraging activity. Biol Invasions 2021. [DOI: 10.1007/s10530-021-02678-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bonnamour A, Gippet JMW, Bertelsmeier C. Insect and plant invasions follow two waves of globalisation. Ecol Lett 2021; 24:2418-2426. [PMID: 34420251 PMCID: PMC9290749 DOI: 10.1111/ele.13863] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/10/2021] [Accepted: 07/27/2021] [Indexed: 01/01/2023]
Abstract
Globalisation has facilitated the spread of alien species, and some of them have significant impacts on biodiversity and human societies. It is commonly thought that biological invasions have accelerated continuously over the last centuries, following increasing global trade. However, the world experienced two distinct waves of globalisation (~1820–1914, 1960‐present), and it remains unclear whether these two waves have influenced invasion dynamics of many species. To test this, we built a statistical model that accounted for temporal variations in sampling effort. We found that insect and plant invasion rates did not continuously increase over the past centuries but greatly fluctuated following the two globalisation waves. Our findings challenge the idea of a continuous acceleration of alien species introductions and highlight the association between temporal variations in trade openness and biological invasion dynamics. More generally, this emphasises the urgency of better understanding the subtleties of socio‐economic drivers to improve predictions of future invasions.
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Affiliation(s)
- Aymeric Bonnamour
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | - Jérôme M W Gippet
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | - Cleo Bertelsmeier
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
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Cayuela H, Dorant Y, Forester BR, Jeffries DL, Mccaffery RM, Eby LA, Hossack BR, Gippet JMW, Pilliod DS, Chris Funk W. Genomic signatures of thermal adaptation are associated with clinal shifts of life history in a broadly distributed frog. J Anim Ecol 2021; 91:1222-1238. [PMID: 34048026 PMCID: PMC9292533 DOI: 10.1111/1365-2656.13545] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/17/2021] [Indexed: 12/14/2022]
Abstract
Temperature is a critical driver of ectotherm life‐history strategies, whereby a warmer environment is associated with increased growth, reduced longevity and accelerated senescence. Increasing evidence indicates that thermal adaptation may underlie such life‐history shifts in wild populations. Single nucleotide polymorphisms (SNPs) and copy number variants (CNVs) can help uncover the molecular mechanisms of temperature‐driven variation in growth, longevity and senescence. However, our understanding of these mechanisms is still limited, which reduces our ability to predict the response of non‐model ectotherms to global temperature change. In this study, we examined the potential role of thermal adaptation in clinal shifts of life‐history traits (i.e. life span, senescence rate and recruitment) in the Columbia spotted frog Rana luteiventris along a broad temperature gradient in the western United States. We took advantage of extensive capture–recapture datasets of 20,033 marked individuals from eight populations surveyed annually for 14–18 years to examine how mean annual temperature and precipitation influenced demographic parameters (i.e. adult survival, life span, senescence rate, recruitment and population growth). After showing that temperature was the main climatic predictor influencing demography, we used RAD‐seq data (50,829 SNPs and 6,599 putative CNVs) generated for 352 individuals from 31 breeding sites to identify the genomic signatures of thermal adaptation. Our results showed that temperature was negatively associated with annual adult survival and reproductive life span and positively associated with senescence rate. By contrast, recruitment increased with temperature, promoting the long‐term viability of most populations. These temperature‐dependent demographic changes were associated with strong genomic signatures of thermal adaptation. We identified 148 SNP candidates associated with temperature including three SNPs located within protein‐coding genes regulating resistance to cold and hypoxia, immunity and reproduction in ranids. We also identified 39 CNV candidates (including within 38 transposable elements) for which normalized read depth was associated with temperature. Our study indicates that both SNPs and structural variants are associated with temperature and could eventually be found to play a functional role in clinal shifts in senescence rate and life‐history strategies in R. luteiventris. These results highlight the potential role of different sources of molecular variation in the response of ectotherms to environmental temperature variation in the context of global warming.
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Affiliation(s)
- Hugo Cayuela
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | - Yann Dorant
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, QC, Canada
| | - Brenna R Forester
- Department of Biology, Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO, USA
| | - Dan L Jeffries
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | - Rebecca M Mccaffery
- US Geological Survey, Forest and Rangeland Ecosystem Science Center, Port Angeles, WA, USA
| | - Lisa A Eby
- Wildlife Biology Program, W. A. Franke College of Forestry and Conservation, University of Montana, Missoula, MT, USA
| | - Blake R Hossack
- US Geological Survey, Northern Rocky Mountain Science Center, Missoula, MT, USA
| | - Jérôme M W Gippet
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | - David S Pilliod
- US Geological Survey, Forest and Rangeland Ecosystem Science Center, Boise, ID, USA
| | - W Chris Funk
- Department of Biology, Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO, USA
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Bujan J, Charavel E, Bates OK, Gippet JMW, Darras H, Lebas C, Bertelsmeier C. Increased acclimation ability accompanies a thermal niche shift of a recent invasion. J Anim Ecol 2020; 90:483-491. [PMID: 33131068 DOI: 10.1111/1365-2656.13381] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 10/21/2020] [Indexed: 11/30/2022]
Abstract
Globalization is removing dispersal barriers for the establishment of invasive species and enabling their spread to novel climates. New thermal environments in the invaded range will be particularly challenging for ectotherms, as their metabolism directly depends on environmental temperature. However, we know little about the role climatic niche shifts play in the invasion process, and the underlining physiological mechanisms. We tested if a thermal niche shift accompanies an invasion, and if native and introduced populations differ in their ability to acclimate thermal limits. We used an alien ant species-Tapinoma magnum-which recently started to spread across Europe. Using occurrence data and accompanying climatic variables, we measured the amount of overlap between thermal niches in the native and invaded range. We then experimentally tested the acclimation ability in native and introduced populations by incubating T. magnum at 18, 25 and 30°C. We measured upper and lower critical thermal limits after 7 and 21 days. We found that T. magnum occupies a distinct thermal niche in its introduced range, which is on average 3.5°C colder than its native range. Critical thermal minimum did not differ between populations from the two ranges when colonies were maintained at 25 or 30°C, but did differ after colony acclimation at a lower temperature. We found twofold greater acclimation ability of introduced populations to lower temperatures, after prolonged incubation at 18°C. Increased acclimation ability of lower thermal limits could explain the expansion of the realized thermal niche in the invaded range, and likely contributed to the spread of this species to cooler climates. Such thermal plasticity could be an important, yet so far understudied, factor underlying the expansion of invasive insects into novel climates.
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Affiliation(s)
- Jelena Bujan
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
| | - Ellouène Charavel
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
| | - Olivia K Bates
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
| | - Jérôme M W Gippet
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
| | - Hugo Darras
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
| | - Claude Lebas
- Antarea (www.antarea.fr), Association pour l'étude et la cartographie des fourmis de France métropolitaine, Canohès, France
| | - Cleo Bertelsmeier
- Department of Ecology and Evolution, Biophore, University of Lausanne, Lausanne, Switzerland
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