1
|
Pärt T, Jeppsson T, Paquet M, Arlt D, Laugen AT, Low M, Knape J, Qvarnström A, Forslund P. Unclear relationships between mean survival rate and its environmental variance in vertebrates. Ecol Evol 2024; 14:e11104. [PMID: 38435010 PMCID: PMC10909500 DOI: 10.1002/ece3.11104] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 02/15/2024] [Accepted: 02/20/2024] [Indexed: 03/05/2024] Open
Abstract
Current environmental changes may increase temporal variability of life history traits of species thus affecting their long-term population growth rate and extinction risk. If there is a general relationship between environmental variances (EVs) and mean annual survival rates of species, that relationship could be used as a guideline for analyses of population growth and extinction risk for populations, where data on EVs are missing. For this purpose, we present a comprehensive compilation of 252 EV estimates from 89 species belonging to five vertebrate taxa (birds, mammals, reptiles, amphibians and fish) covering mean annual survival rates from 0.01 to 0.98. Since variances of survival rates are constrained by their means, particularly for low and high mean survival rates, we assessed whether any observed relationship persisted after applying two types of commonly used variance stabilizing transformations: relativized EVs (observed/mathematical maximum) and logit-scaled EVs. With raw EVs at the arithmetic scale, mean-variance relationships of annual survival rates were hump-shaped with small EVs at low and high mean survival rates and higher (and widely variable) EVs at intermediate mean survival rates. When mean annual survival rates were related to relativized EVs the hump-shaped pattern was less distinct than for raw EVs. When transforming EVs to logit scale the relationship between mean annual survival rates and EVs largely disappeared. The within-species juvenile-adult slopes were mainly positive at low (<0.5) and negative at high (>0.5) mean survival rates for raw and relativized variances while these patterns disappeared when EVs were logit transformed. Uncertainties in how to interpret the results of relativized and logit-scaled EVs, and the observed high variation in EV's for similar mean annual survival rates illustrates that extrapolations of observed EVs and tests of life history drivers of survival-EV relationships need to also acknowledge the large variation in these parameters.
Collapse
Affiliation(s)
- Tomas Pärt
- Department of EcologySwedish University of Agricultural SciencesUppsalaSweden
| | | | - Matthieu Paquet
- Department of EcologySwedish University of Agricultural SciencesUppsalaSweden
- Institute of Mathematics of Bordeaux, CNRSUniversity of BordeauxTalenceFrance
- Theoretical and Experimental Ecology Station (SETE)CNRSMoulisFrance
| | - Debora Arlt
- Department of EcologySwedish University of Agricultural SciencesUppsalaSweden
- SLU Swedish Species Information CentreSwedish University of Agricultural SciencesUppsalaSweden
| | - Ane T. Laugen
- Department of Natural SciencesUniversity of AgderKristiansandNorway
| | - Matthew Low
- Department of EcologySwedish University of Agricultural SciencesUppsalaSweden
| | - Jonas Knape
- Department of EcologySwedish University of Agricultural SciencesUppsalaSweden
| | | | - Pär Forslund
- Department of EcologySwedish University of Agricultural SciencesUppsalaSweden
| |
Collapse
|
2
|
Fortuna R, Covas R, D'Amelio PB, Silva LR, Parenteau C, Bliard L, Rybak F, Doutrelant C, Paquet M. Interplay of cooperative breeding and predation risk on egg allocation and reproductive output. Behav Ecol 2024; 35:arae010. [PMID: 38486920 PMCID: PMC10939053 DOI: 10.1093/beheco/arae010] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 01/21/2024] [Accepted: 02/27/2024] [Indexed: 03/17/2024] Open
Abstract
Predation risk can influence behavior, reproductive investment, and, ultimately, individuals' fitness. In high-risk environments, females often reduce allocation to reproduction, which can affect offspring phenotype and breeding success. In cooperative breeders, helpers contribute to feed the offspring, and groups often live and forage together. Helpers can, therefore, improve reproductive success, but also influence breeders' condition, stress levels and predation risk. Yet, whether helper presence can buffer the effects of predation risk on maternal reproductive allocation remains unstudied. Here, we used the cooperatively breeding sociable weaver Philetairus socius to test the interactive effects of predation risk and breeding group size on maternal allocation to clutch size, egg mass, yolk mass, and yolk corticosterone. We increased perceived predation risk before egg laying using playbacks of the adults' main predator, gabar goshawk (Micronisus gabar). We also tested the interactive effects of group size and prenatal predator playbacks on offspring hatching and fledging probability. Predator-exposed females laid eggs with 4% lighter yolks, but predator-calls' exposure did not clearly affect clutch size, egg mass, or egg corticosterone levels. Playback-treatment effects on yolk mass were independent of group size, suggesting that helpers' presence did not mitigate predation risk effects on maternal allocation. Although predator-induced reductions in yolk mass may decrease nutrient availability to offspring, potentially affecting their survival, playback-treatment effects on hatching and fledging success were not evident. The interplay between helper presence and predator effects on maternal reproductive investment is still an overlooked area of life history and physiological evolutionary trade-offs that requires further studies.
Collapse
Affiliation(s)
- Rita Fortuna
- 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
- Centre for Biodiversity Dynamics, Institutt for Biologi, NTNU, 7491, Trondheim, Norway
| | - Rita Covas
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661, Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661, Vairão, Portugal
- FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape Town, 7701, Cape Town, South Africa
| | - Pietro B D'Amelio
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, 34293, Montpellier, France
- Université Paris-Saclay, CNRS, Institut des Neurosciences Paris-Saclay, 91400, Saclay, France
| | - Liliana R Silva
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661, Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661, Vairão, Portugal
| | - Charline Parenteau
- Centre d’Etudes Biologiques de Chizé, CNRS-La Rochelle Université, 79360, Villiers-en-Bois, France
| | - Louis Bliard
- Department of Evolutionary Biology & Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Fanny Rybak
- Université Paris-Saclay, CNRS, Institut des Neurosciences Paris-Saclay, 91400, Saclay, France
| | - Claire Doutrelant
- FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape Town, 7701, Cape Town, South Africa
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, 34293, Montpellier, France
| | - Matthieu Paquet
- Institute of Mathematics of Bordeaux, University of Bordeaux, CNRS, Bordeaux INP, 33405, Talence, France
- Theoretical and Experimental Ecology Station (SETE), CNRS, 09200, Moulis, France
| |
Collapse
|
3
|
Ivimey-Cook ER, Pick JL, Bairos-Novak KR, Culina A, Gould E, Grainger M, Marshall BM, Moreau D, Paquet M, Royauté R, Sánchez-Tójar A, Silva I, Windecker SM. Implementing code review in the scientific workflow: Insights from ecology and evolutionary biology. J Evol Biol 2023; 36:1347-1356. [PMID: 37812156 DOI: 10.1111/jeb.14230] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/08/2023] [Accepted: 09/12/2023] [Indexed: 10/10/2023]
Abstract
Code review increases reliability and improves reproducibility of research. As such, code review is an inevitable step in software development and is common in fields such as computer science. However, despite its importance, code review is noticeably lacking in ecology and evolutionary biology. This is problematic as it facilitates the propagation of coding errors and a reduction in reproducibility and reliability of published results. To address this, we provide a detailed commentary on how to effectively review code, how to set up your project to enable this form of review and detail its possible implementation at several stages throughout the research process. This guide serves as a primer for code review, and adoption of the principles and advice here will go a long way in promoting more open, reliable, and transparent ecology and evolutionary biology.
Collapse
Affiliation(s)
- Edward R Ivimey-Cook
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, Glasgow, UK
| | - Joel L Pick
- Institute of Ecology and Evolution, University of Edinburgh, Edinburgh, UK
| | - Kevin R Bairos-Novak
- Australian Research Council Centre of Excellence for Coral Reef Studies & College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
| | - Antica Culina
- Rudjer Boskovic Institute, Zagreb, Croatia
- Netherlands Institute of Ecology, NIOO-KNAW, Wageningen, the Netherlands
| | - Elliot Gould
- School of Ecosystem and Forest Sciences, University of Melbourne, Melbourne, Victoria, Australia
| | | | - Benjamin M Marshall
- Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling, UK
| | - David Moreau
- School of Psychology, Centre for Brain Research, University of Auckland, Auckland, New Zealand
| | - Matthieu Paquet
- Institute of Mathematics of Bordeaux, University of Bordeaux, CNRS, Bordeaux INP, Talence, France
| | - Raphaël Royauté
- Université ParisSaclay, INRAE, AgroParisTech, UMR EcoSys, Palaiseau, France
| | | | - Inês Silva
- Center for Advanced Systems Understanding (CASUS), Helmholtz-Zentrum Dresden-Rossendorf e.V. (HZDR), Görlitz, Germany
| | - Saras M Windecker
- School of Ecosystem and Forest Sciences, University of Melbourne, Melbourne, Victoria, Australia
| |
Collapse
|
4
|
Knape J, Paquet M, Arlt D, Kačergytė I, Pärt T. Partitioning variance in population growth for models with environmental and demographic stochasticity. J Anim Ecol 2023; 92:1979-1991. [PMID: 37491892 DOI: 10.1111/1365-2656.13990] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 07/04/2023] [Indexed: 07/27/2023]
Abstract
How demographic factors lead to variation or change in growth rates can be investigated using life table response experiments (LTRE) based on structured population models. Traditionally, LTREs focused on decomposing the asymptotic growth rate, but more recently decompositions of annual 'realized' growth rates using 'transient' LTREs have gained in popularity. Transient LTREs have been used particularly to understand how variation in vital rates translate into variation in growth for populations under long-term study. For these, complete population models may be constructed to investigate how temporal variation in environmental drivers affect vital rates. Such investigations have usually come down to estimating covariate coefficients for the effects of environmental variables on vital rates, but formal ways of assessing how they lead to variation in growth rates have been lacking. We extend transient LTREs to further partition the contributions from vital rates into contributions from temporally varying factors that affect them. The decomposition allows one to compare the resultant effect on the growth rate of different environmental factors, as well as density dependence, which may each act via multiple vital rates. We also show how realized growth rates can be decomposed into separate components from environmental and demographic stochasticity. The latter is typically omitted in LTRE analyses. We illustrate these extensions with an integrated population model (IPM) for data from a 26 years study on northern wheatears (Oenanthe oenanthe), a migratory passerine bird breeding in an agricultural landscape. For this population, consisting of around 50-120 breeding pairs per year, we partition variation in realized growth rates into environmental contributions from temperature, rainfall, population density and unexplained random variation via multiple vital rates, and from demographic stochasticity. The case study suggests that variation in first year survival via the unexplained random component, and adult survival via temperature are two main factors behind environmental variation in growth rates. More than half of the variation in growth rates is suggested to come from demographic stochasticity, demonstrating the importance of this factor for populations of moderate size.
Collapse
Affiliation(s)
- Jonas Knape
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Matthieu Paquet
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
- Institute of Mathematics of Bordeaux, University of Bordeaux, CNRS, Bordeaux INP, Talence, France
| | - Debora Arlt
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
- SLU Swedish Species Information Centre, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Ineta Kačergytė
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Tomas Pärt
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| |
Collapse
|
5
|
Fortuna R, Paquet M, Biard C, Élard L, Ferreira AC, Leroux-Coyaux M, Parenteau C, Silva LR, Théron F, Covas R, Doutrelant C. Egg components and offspring survival vary with group size and laying order in a cooperative breeder. Oecologia 2023; 202:129-142. [PMID: 37148378 DOI: 10.1007/s00442-023-05379-w] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 04/25/2023] [Indexed: 05/08/2023]
Abstract
Prenatal resource allocation to offspring can be influenced by maternal environment and offspring value, and affect offspring survival. An important pathway for flexible maternal allocation is via egg components such as nutrients and hormones. In cooperative breeders, females with helpers may increase resource allocation to eggs-'differential allocation'-or reduce it-'load-lightening'. Yet, helper effects on egg composition have been poorly studied. Moreover, it is unknown how helpers' presence modulates laying order effects on egg content and survival. Here, we investigated how maternal allocation varied with group size and laying order in the cooperatively breeding sociable weaver (Philetairus socius). We estimated interactive effects of helpers and laying order on allocation to egg mass, yolk nutrients-yolk mass, proteins, lipids, carotenoids, vitamin A and vitamin E-and hormones-testosterone, androstenedione, and corticosterone. Results concurred with the 'differential allocation' predictions. Females with more helpers produced later-laid eggs with heavier yolks and more lipids, and laid eggs overall richer in lipids. Proteins, antioxidants, and hormones were not found to vary with helper number. We then analyzed how helper number modulated laying order effects on survival. Females with more helpers did not specifically produce later-laid eggs with higher survival, but eggs laid by females with more helpers were overall more likely to fledge. These findings show that some egg components (yolk mass, lipids) can positively vary according to females' breeding group size, which may improve offspring fitness.
Collapse
Affiliation(s)
- Rita Fortuna
- 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.
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE, CNRS, Univ Montpellier, EPHE, IRD, 34293, Montpellier, France.
- Centre for Biodiversity Dynamics, Institutt for Biologi, NTNU, Trondheim, Norway.
| | - Matthieu Paquet
- Department of Ecology, Swedish University of Agricultural Sciences, P.O. Box 7044, 75007, Uppsala, Sweden
- Institute of Mathematics of Bordeaux, University of Bordeaux, CNRS, Bordeaux INP, Talence, France
| | - Clotilde Biard
- Sorbonne Université, UPEC, CNRS, IRD, INRA, Institut d'Écologie et des Sciences de l'Environnement de Paris, IEES, 75005, Paris, France
| | - Loïc Élard
- Sorbonne Université, UPEC, CNRS, IRD, INRA, Institut d'Écologie et des Sciences de l'Environnement de Paris, IEES, 75005, Paris, France
| | - André C Ferreira
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661, Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661, Vairão, Portugal
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE, CNRS, Univ Montpellier, EPHE, IRD, 34293, Montpellier, France
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Mathieu Leroux-Coyaux
- Sorbonne Université, UPEC, CNRS, IRD, INRA, Institut d'Écologie et des Sciences de l'Environnement de Paris, IEES, 75005, Paris, France
| | - Charline Parenteau
- Centre d'Etudes Biologiques de Chizé, CNRS-La Rochelle Université, Villiers-en-Bois, France
| | - Liliana R Silva
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661, Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661, Vairão, Portugal
| | - Franck Théron
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661, Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661, Vairão, Portugal
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE, CNRS, Univ Montpellier, EPHE, IRD, 34293, Montpellier, France
| | - Rita Covas
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661, Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661, Vairão, Portugal
- DST-NRF Centre of Excellence, FitzPatrick Institute, University of Cape Town, Cape Town, South Africa
| | - Claire Doutrelant
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE, CNRS, Univ Montpellier, EPHE, IRD, 34293, Montpellier, France
- DST-NRF Centre of Excellence, FitzPatrick Institute, University of Cape Town, Cape Town, South Africa
| |
Collapse
|
6
|
Nakagawa S, Ivimey-Cook ER, Grainger MJ, O'Dea RE, Burke S, Drobniak SM, Gould E, Macartney EL, Martinig AR, Morrison K, Paquet M, Pick JL, Pottier P, Ricolfi L, Wilkinson DP, Willcox A, Williams C, Wilson LAB, Windecker SM, Yang Y, Lagisz M. Method Reporting with Initials for Transparency (MeRIT) promotes more granularity and accountability for author contributions. Nat Commun 2023; 14:1788. [PMID: 37012240 PMCID: PMC10070262 DOI: 10.1038/s41467-023-37039-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 02/24/2023] [Indexed: 04/05/2023] Open
Affiliation(s)
- Shinichi Nakagawa
- Evolution & Ecology Research Centre and School of Biological, Earth and Environmental Sciences, UNSW, Sydney, Australia.
| | - Edward R Ivimey-Cook
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, Glasgow, UK
| | - Matthew J Grainger
- Norwegian Institute for Nature Research, Postbox 5685 Torgarden, 7485, Trondheim, Norway
| | - Rose E O'Dea
- Wissenschaftskolleg zu Berlin, Wallotstraße 19, 14193, Berlin, Germany
| | - Samantha Burke
- Evolution & Ecology Research Centre and School of Biological, Earth and Environmental Sciences, UNSW, Sydney, Australia
| | - Szymon M Drobniak
- Institute of Environmental Sciences, Jagiellonian University, Krakow, Poland
| | - Elliot Gould
- School of Ecosystem and Forest Sciences, University of Melbourne, Melbourne, VIC, Australia
| | - Erin L Macartney
- Evolution & Ecology Research Centre and School of Biological, Earth and Environmental Sciences, UNSW, Sydney, Australia
| | - April Robin Martinig
- Evolution & Ecology Research Centre and School of Biological, Earth and Environmental Sciences, UNSW, Sydney, Australia
| | - Kyle Morrison
- Evolution & Ecology Research Centre and School of Biological, Earth and Environmental Sciences, UNSW, Sydney, Australia
| | - Matthieu Paquet
- Institute of Mathematics of Bordeaux, University of Bordeaux, CNRS, Bordeaux INP, Talence, France
| | - Joel L Pick
- Institute of Ecology and Evolution, University of Edinburgh, Edinburgh, UK
| | - Patrice Pottier
- Evolution & Ecology Research Centre and School of Biological, Earth and Environmental Sciences, UNSW, Sydney, Australia
| | - Lorenzo Ricolfi
- Evolution & Ecology Research Centre and School of Biological, Earth and Environmental Sciences, UNSW, Sydney, Australia
| | - David P Wilkinson
- School of Ecosystem and Forest Sciences, University of Melbourne, Melbourne, VIC, Australia
| | - Aaron Willcox
- School of Ecosystem and Forest Sciences, University of Melbourne, Melbourne, VIC, Australia
| | - Coralie Williams
- Evolution & Ecology Research Centre and School of Biological, Earth and Environmental Sciences, UNSW, Sydney, Australia
| | - Laura A B Wilson
- School of Archaeology & Anthropology, The Australian National University, Acton, ACT, 2600, Australia
| | - Saras M Windecker
- School of Ecosystem and Forest Sciences, University of Melbourne, Melbourne, VIC, Australia
| | - Yefeng Yang
- Evolution & Ecology Research Centre and School of Biological, Earth and Environmental Sciences, UNSW, Sydney, Australia
| | - Malgorzata Lagisz
- Evolution & Ecology Research Centre and School of Biological, Earth and Environmental Sciences, UNSW, Sydney, Australia.
| |
Collapse
|
7
|
Fortuna R, D'Amelio PB, Doutrelant C, Ferreira AC, Lecq C, Silva LR, Covas R, Rybak F, Paquet M. Begging and feeding responses vary with relatedness and sex of provisioners in a cooperative breeder. Anim Behav 2022. [DOI: 10.1016/j.anbehav.2021.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
8
|
D'Amelio PB, Ferreira AC, Fortuna R, Paquet M, Silva LR, Theron F, Doutrelant C, Covas R. Disentangling climatic and nest predator impact on reproductive output reveals adverse high-temperature effects regardless of helper number in an arid-region cooperative bird. Ecol Lett 2021; 25:151-162. [PMID: 34787354 PMCID: PMC9299450 DOI: 10.1111/ele.13913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/28/2021] [Revised: 08/04/2021] [Accepted: 09/29/2021] [Indexed: 01/20/2023]
Abstract
Climate exerts a major influence on reproductive processes, and an understanding of the mechanisms involved and which factors might mitigate adverse weather is fundamental under the ongoing climate change. Here, we study how weather and nest predation influence reproductive output in a social species, and examine whether larger group sizes can mitigate the adverse effects of these factors. We used a 7‐year nest predator‐exclusion experiment on an arid‐region cooperatively breeding bird, the sociable weaver. We found that dry and, especially, hot weather were major drivers of nestling mortality through their influence on nest predation. However, when we experimentally excluded nest predators, these conditions were still strongly associated with nestling mortality. Group size was unimportant against nest predation and, although positively associated with reproductive success, it did not mitigate the effects of adverse weather. Hence, cooperative breeding might have a limited capacity to mitigate extreme weather effects.
Collapse
Affiliation(s)
- Pietro B D'Amelio
- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch, 7701, South Africa.,Centre d'Ecologie Fonctionnelle et Evolutive, CEFE, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, 34293, France
| | - André C Ferreira
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, 34293, France.,BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Vairão, 4485-661, Portugal.,CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, Vairão, 4485-661, Portugal
| | - Rita Fortuna
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Vairão, 4485-661, Portugal.,CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, Vairão, 4485-661, Portugal.,Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, 4099-002, Porto, Portugal
| | - Matthieu Paquet
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, SE-75007, Sweden
| | - Liliana R Silva
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Vairão, 4485-661, Portugal.,CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, Vairão, 4485-661, Portugal
| | - Franck Theron
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, 34293, France.,BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Vairão, 4485-661, Portugal.,CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, Vairão, 4485-661, Portugal
| | - Claire Doutrelant
- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch, 7701, South Africa.,Centre d'Ecologie Fonctionnelle et Evolutive, CEFE, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, 34293, France
| | - Rita Covas
- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch, 7701, South Africa.,BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Vairão, 4485-661, Portugal.,CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, Vairão, 4485-661, Portugal
| |
Collapse
|
9
|
Paquet M, Knape J, Arlt D, Forslund P, Pärt T, Flagstad Ø, Jones CG, Nicoll MAC, Norris K, Pemberton JM, Sand H, Svensson L, Tatayah V, Wabakken P, Wikenros C, Åkesson M, Low M. Integrated population models poorly estimate the demographic contribution of immigration. Methods Ecol Evol 2021. [DOI: 10.1111/2041-210x.13667] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Matthieu Paquet
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Jonas Knape
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Debora Arlt
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
- SLU Swedish Species Information Centre Swedish University of Agricultural Sciences Uppsala Sweden
| | - Pär Forslund
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Tomas Pärt
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | | | - Carl G. Jones
- Mauritian Wildlife Foundation Vacoas Mauritius
- Durrell Wildlife Conservation Trust Trinity UK
| | | | | | - Josephine M. Pemberton
- Institute of Evolutionary Biology School of Biological Sciences University of Edinburgh Edinburgh UK
| | - Håkan Sand
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Linn Svensson
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | | | - Petter Wabakken
- Faculty of Applied Ecology and Agricultural Sciences Inland Norway University of Applied Sciences Hamar Norway
| | - Camilla Wikenros
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Mikael Åkesson
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Matthew Low
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| |
Collapse
|
10
|
Quque M, Paquet M, Zahn S, Théron F, Faivre B, Sueur C, Criscuolo F, Doutrelant C, Covas R. Contrasting associations between nestling telomere length and pre and postnatal helpers' presence in a cooperatively breeding bird. Oecologia 2021; 196:37-51. [PMID: 33864121 DOI: 10.1007/s00442-021-04917-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 07/24/2020] [Accepted: 04/08/2021] [Indexed: 11/29/2022]
Abstract
Studies on cooperative breeders have addressed the effects of non-breeding 'helpers' on reproduction and parental care, but the consequences for offspring physiology and long-term survival are less understood. Helpers are expected to benefit offspring, but their presence can also lead to decreased pre- or post-natal parental reproductive effort. To examine whether prenatal and postnatal helpers influence offspring condition, we conducted a whole-clutch cross-fostering experiment in sociable weavers (Philetairus socius) that altered the nestlings' social environment (presence/absence of helpers). We tested whether relative telomere length (rTL), an indicator of somatic maintenance, was influenced by prenatal and/or postnatal presence of helpers 9 and 17 days after hatching, and whether rTL predicted long-term survival. Nine days after hatching, we found an overall positive effect of postnatal helpers on rTL: for nestlings with prenatal helpers, a reduction in the number of helpers post-hatch was associated with shorter telomeres, while nestlings swapped from nests without helpers to nests with helpers had a larger rTL. However, when prenatal helpers were present, an increased number of helpers after hatching led to shorter telomeres. Nine-day old chicks with longer rTL tended to be more likely to survive over the 5 years following hatching. However, close to fledging, there was no detectable effect of the experiment on rTL and no link between rTL and survival. This experimental study of a wild cooperative breeder, therefore, presents partial support for the importance of the presence of helpers for offspring rTL and the link between early-life telomere length and long-term survival.
Collapse
Affiliation(s)
- Martin Quque
- CNRS, IPHC UMR 7178, Université de Strasbourg, Strasbourg, France.
| | - Matthieu Paquet
- Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| | - Sandrine Zahn
- CNRS, IPHC UMR 7178, Université de Strasbourg, Strasbourg, France
| | - Frank Théron
- CNRS, CEFE UMR 5175, Université de Montpellier, Montpellier, France
| | - Bruno Faivre
- Biogéosciences, CNRS UMR 6282, Université de Bourgogne Franche-Comté, Dijon, France
| | - Cédric Sueur
- CNRS, IPHC UMR 7178, Université de Strasbourg, Strasbourg, France.,Institut Universitaire de France, Paris, France
| | | | - Claire Doutrelant
- CNRS, CEFE UMR 5175, Université de Montpellier, Montpellier, France.,Research Centre On Biodiversity and Genetic Resources, CIBIO-InBio, University of Porto, Porto, Portugal
| | - Rita Covas
- Research Centre On Biodiversity and Genetic Resources, CIBIO-InBio, University of Porto, Porto, Portugal.,Fitzpatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Cape Town, South Africa
| |
Collapse
|
11
|
Fortuna R, Paquet M, Ferreira AC, Silva LR, Theron F, Doutrelant C, Covas R. Maternal allocation in relation to weather, predation and social factors in a colonial cooperative bird. J Anim Ecol 2021; 90:1122-1133. [PMID: 33550597 DOI: 10.1111/1365-2656.13438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 09/21/2020] [Accepted: 01/11/2021] [Indexed: 11/28/2022]
Abstract
Females may adjust prenatal allocation in relation to ecological conditions that affect reproductive success, such as weather conditions or predation risk. In cooperative breeders, helpers might also influence reproductive success, and previous studies suggest that females can lay smaller eggs or larger clutches when breeding with more helpers. Although recent work suggests that helper effects can vary according to climatic variables, how social and ecological factors interact to shape prenatal allocation is poorly understood. Here, we examine how ecological and social components of the breeding environment covary with egg mass and clutch size, using as a model the sociable weaver Philetairus socius, a colonial, cooperatively breeding passerine. The study spanned 9 years and included over 1,900 eggs from over 550 clutches. Our analyses combined natural variation in weather conditions (rainfall before each reproductive event) with a nest predator-exclusion experiment and continuous monitoring of the mother's social environment, allowing us to estimate how individual females adjust allocation to reproduction as their number of helpers varies. We found that egg mass varied consistently within females and did not clearly differ in relation to rainfall or predation risk. Contrary to previous studies, there was no evidence for plastic adjustments as females gained and lost helpers, and egg mass was instead better predicted by mother size and identity. Females laid larger clutches when breeding in environments where predation risk was experimentally reduced and after higher rainfall levels. Yet, there was no evidence for increasing clutch size as the number of helpers increased, nor for an interaction between helper effects and ecological factors. We conclude that while sociable weaver females can vary their clutch size, they show high individual consistency in egg mass. In addition, we found no evidence that females may maximize fitness through plastic prenatal allocation in relation to the number of helpers, or that the presence/absence of helper effects is modulated by rainfall levels or predation risk. These results challenge our current knowledge on some of the possible benefits of breeding with helpers and call for more long-term analyses on reproductive allocation adjustments in other cooperative systems.
Collapse
Affiliation(s)
- Rita Fortuna
- CIBIO-InBIO - Research Centre in Biodiversity and Genetic Resources, Vairão, Portugal
| | - Matthieu Paquet
- Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - André C Ferreira
- CIBIO-InBIO - Research Centre in Biodiversity and Genetic Resources, Vairão, Portugal.,CEFE-UMR5175 CNRS - Université de Montpellier, Montpellier Cedex 5, France
| | - Liliana R Silva
- CIBIO-InBIO - Research Centre in Biodiversity and Genetic Resources, Vairão, Portugal
| | - Franck Theron
- CEFE-UMR5175 CNRS - Université de Montpellier, Montpellier Cedex 5, France
| | - Claire Doutrelant
- CEFE-UMR5175 CNRS - Université de Montpellier, Montpellier Cedex 5, France
| | - Rita Covas
- CIBIO-InBIO - Research Centre in Biodiversity and Genetic Resources, Vairão, Portugal.,Percy FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape Town, Cape Town, South Africa
| |
Collapse
|
12
|
Paquet M, Arlt D, Knape J, Low M, Forslund P, Pärt T. Why we should care about movements: Using spatially explicit integrated population models to assess habitat source-sink dynamics. J Anim Ecol 2020; 89:2922-2933. [PMID: 32981078 PMCID: PMC7756878 DOI: 10.1111/1365-2656.13357] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 02/21/2020] [Accepted: 08/31/2020] [Indexed: 11/30/2022]
Abstract
Assessing the source–sink status of populations and habitats is of major importance for understanding population dynamics and for the management of natural populations. Sources produce a net surplus of individuals (per capita contribution to the metapopulation > 1) and will be the main contributors for self‐sustaining populations, whereas sinks produce a deficit (contribution < 1). However, making these types of assessments is generally hindered by the problem of separating mortality from permanent emigration, especially when survival probabilities as well as moved distances are habitat‐specific. To address this long‐standing issue, we propose a spatial multi‐event integrated population model (IPM) that incorporates habitat‐specific dispersal distances of individuals. Using information about local movements, this IPM adjusts survival estimates for emigration outside the study area. Analysing 24 years of data on a farmland passerine (the northern wheatear Oenanthe oenanthe), we assessed habitat‐specific contributions, and hence the source–sink status and temporal variation of two key breeding habitats, while accounting for habitat‐ and sex‐specific local dispersal distances of juveniles and adults. We then examined the sensitivity of the source–sink analysis by comparing results with and without accounting for these local movements. Estimates of first‐year survival, and consequently habitat‐specific contributions, were higher when local movement data were included. The consequences from including movement data were sex specific, with contribution shifting from sink to likely source in one habitat for males, and previously noted habitat differences for females disappearing. Assessing the source–sink status of habitats is extremely challenging. We show that our spatial IPM accounting for local movements can reduce biases in estimates of the contribution by different habitats, and thus reduce the overestimation of the occurrence of sink habitats. This approach allows combining all available data on demographic rates and movements, which will allow better assessment of source–sink dynamics and better informed conservation interventions.
Collapse
Affiliation(s)
- Matthieu Paquet
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Debora Arlt
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden.,SLU Swedish Species Information Centre, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Jonas Knape
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Matthew Low
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Pär Forslund
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Tomas Pärt
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| |
Collapse
|
13
|
Josefsson J, Hiron M, Arlt D, Auffret AG, Berg Å, Chevalier M, Glimskär A, Hartman G, Kačergytė I, Klein J, Knape J, Laugen AT, Low M, Paquet M, Pasanen‐Mortensen M, Rosin ZM, Rubene D, Żmihorski M, Pärt T. Improving scientific rigour in conservation evaluations and a plea deal for transparency on potential biases. Conserv Lett 2020. [DOI: 10.1111/conl.12726] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
- Jonas Josefsson
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Matthew Hiron
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Debora Arlt
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Alistair G. Auffret
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Åke Berg
- Swedish Biodiversity Centre Swedish University of Agricultural Sciences Uppsala Sweden
| | - Mathieu Chevalier
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
- Department of Ecology and Evolution University of Lausanne Lausanne Switzerland
| | - Anders Glimskär
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Göran Hartman
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Ineta Kačergytė
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Julian Klein
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Jonas Knape
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Ane T. Laugen
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
- Department of Natural Sciences, Centre for Coastal Research University of Agder Kristiansand Norway
| | - Matthew Low
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Matthieu Paquet
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Marianne Pasanen‐Mortensen
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
- Department of Zoology Stockholm University Stockholm Sweden
| | - Zuzanna M. Rosin
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
- Department of Cell Biology Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University Umultowska Poznań Poland
| | - Diana Rubene
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
- Department of Crop Production Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Michał Żmihorski
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
- Mammal Research Institute, Polish Academy of Sciences Białowieża Poland
| | - Tomas Pärt
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| |
Collapse
|
14
|
Paquet M, Parenteau C, Ford LE, Ratz T, Richardson J, Angelier F, Smiseth PT. Females adjust maternal hormone concentration in eggs according to male condition in a burying beetle. Horm Behav 2020; 121:104708. [PMID: 32004551 DOI: 10.1016/j.yhbeh.2020.104708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 12/10/2019] [Accepted: 01/25/2020] [Indexed: 11/21/2022]
Abstract
In birds and other vertebrates, there is good evidence that females adjust the allocation of hormones in their eggs in response to prenatal environmental conditions, such as food availability or male phenotype, with profound consequences for life history traits of offspring. In insects, there is also evidence that females deposit juvenile hormones (JH) and ecdysteroids (ESH) in their eggs, hormones that play a key role in regulating offspring growth and metamorphosis. However, it is unclear whether females adjust their hormonal deposition in eggs in response to prenatal environmental conditions. Here we address this gap by conducting an experiment on the burying beetle Nicrophorus vespilloides, in which we manipulated the presence of the male parent and the size of the carcass used for breeding at the time of laying. We also tested for effects of the condition (i.e., body mass) of the parents. We then recorded subsequent effects on JH and ESH concentrations in the eggs. We found no evidence for an effect of these prenatal environmental conditions (male presence and carcass size) on hormonal concentration in the eggs. However, we found that females reduced their deposition of JH when mated with heavier males. This finding is consistent with negative differential allocation of maternal hormones in response to variation in the body mass of the male parent. We encourage further work to investigate the role of maternally derived hormones in insect eggs.
Collapse
Affiliation(s)
- Matthieu Paquet
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, UK; Department of Ecology, Swedish University of Agricultural Sciences, Box 7044, SE-75007 Uppsala, Sweden.
| | - Charline Parenteau
- Centre d'Etudes Biologiques de Chizé, Centre National de la Recherche Scientifique- La Rochelle Université, UMR 7372, F-79360 Villiers en Bois, France
| | - Lucy E Ford
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, UK
| | - Tom Ratz
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, UK
| | - Jon Richardson
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, UK
| | - Frédéric Angelier
- Centre d'Etudes Biologiques de Chizé, Centre National de la Recherche Scientifique- La Rochelle Université, UMR 7372, F-79360 Villiers en Bois, France
| | - Per T Smiseth
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, UK
| |
Collapse
|
15
|
Bliard L, Paquet M, Robert A, Dufour P, Renoult JP, Grégoire A, Crochet PA, Covas R, Doutrelant C. Examining the link between relaxed predation and bird coloration on islands. Biol Lett 2020; 16:20200002. [PMID: 32315593 DOI: 10.1098/rsbl.2020.0002] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Insular ecosystems share analogous ecological conditions, leading to patterns of convergent evolution that are collectively termed as the 'island syndrome'. In birds, part of this syndrome is a tendency for a duller plumage, possibly as a result of relaxed sexual selection. Despite this global pattern, some insular species display a more colourful plumage than their mainland relatives, but why this occurs has remained unexplained. Here, we examine the hypothesis that these cases of increased plumage coloration on islands could arise through a relaxation of predation pressure. We used comparative analyses to investigate whether average insular richness of raptors of suitable mass influences the plumage colourfulness and brightness across 110 pairs of insular endemic species and their closest mainland relatives. As predicted, we find a likely negative relationship between insular coloration and insular predation while controlling for mainland predation and coloration, suggesting that species were more likely to become more colourful as the number of insular predators decreased. By contrast, plumage brightness was not influenced by predation pressure. Relaxation from predation, together with drift, might thus be a key mechanism of species phenotypic responses to insularity.
Collapse
Affiliation(s)
- Louis Bliard
- CEFE UMR 5175, CNRS - Université de Montpellier - EPHE, 1919 route de Mende, 34293 Montpellier Cedex 05, France
| | - Matthieu Paquet
- Department of Ecology, Swedish University of Agricultural Sciences, Box 7044, SE-75007 Uppsala, Sweden
| | - Aloïs Robert
- CEFE UMR 5175, CNRS - Université de Montpellier - EPHE, 1919 route de Mende, 34293 Montpellier Cedex 05, France
| | - Paul Dufour
- Laboratoire d'Écologie Alpine, Université Grenoble Alpes, CNRS, Université Savoie Mont Blanc, LECA, F-38000 Grenoble, France
| | - Julien P Renoult
- CEFE UMR 5175, CNRS - Université de Montpellier - EPHE, 1919 route de Mende, 34293 Montpellier Cedex 05, France
| | - Arnaud Grégoire
- CEFE UMR 5175, CNRS - Université de Montpellier - EPHE, 1919 route de Mende, 34293 Montpellier Cedex 05, France
| | - Pierre-André Crochet
- CEFE UMR 5175, CNRS - Université de Montpellier - EPHE, 1919 route de Mende, 34293 Montpellier Cedex 05, France
| | - Rita Covas
- CIBIO-InBio, University of Porto, Rua Monte-Crasto, 4485-661 Vairão, Portugal.,Biology Department, Science Faculty, University of Porto, Porto, Portugal.,Percy FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch 7701, South Africa
| | - Claire Doutrelant
- CEFE UMR 5175, CNRS - Université de Montpellier - EPHE, 1919 route de Mende, 34293 Montpellier Cedex 05, France.,Percy FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch 7701, South Africa
| |
Collapse
|
16
|
Humbert O, Cadour N, Paquet M, Schiappa R, Poudenx M, Chardin D, Borchiellini D, Benisvy D, Ouvrier MJ, Zwarthoed C, Schiazza A, Ilie M, Ghalloussi H, Koulibaly PM, Darcourt J, Otto J. 18FDG PET/CT in the early assessment of non-small cell lung cancer response to immunotherapy: frequency and clinical significance of atypical evolutive patterns. Eur J Nucl Med Mol Imaging 2019; 47:1158-1167. [PMID: 31760467 DOI: 10.1007/s00259-019-04573-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [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: 05/02/2019] [Accepted: 10/10/2019] [Indexed: 12/11/2022]
Abstract
PURPOSE This prospective study aimed (1) to assess the non-small cell lung cancer (NSCLC) evolutive patterns to immunotherapy using FDG-PET and (2) to describe their association with clinical outcome. DESIGN Fifty patients with metastatic NSCLC were included before pembrolizumab or nivolumab initiation. FDG-PET scan was performed at baseline and after 7 weeks of treatment (PETinterim1) and different criteria/parameters of tumor response were assessed, including PET response criteria in solid tumors (PERCIST). If a first PERCIST progressive disease (PD) without clinical worsening was observed, treatment was continued and a subsequent FDG-PET (PETinterim2) was performed at 3 months of treatment. Pseudo-progression (PsPD) was defined as a PERCIST response/stability on PETinterim2 after an initial PD. If a second PERCIST PD was assessed on PETinterim2, a homogeneous progression of lesions (termed immune homogeneous progressive-disease: iPDhomogeneous) was distinguished from a heterogeneous evolution (termed immune dissociated-response: iDR). A durable clinical benefit (DCB) of immunotherapy was defined as treatment continuation over a 6-month period. The association between PET evolutive profiles and DCB was assessed. RESULTS Using PERCIST on PETinterim1, 42% (21/50) of patients showed a response or stable disease, most of them (18/21) reached a DCB. In contrast, 58% (29/50) showed a PD, but more than one-third (11/29) were misclassified as they finally reached a DCB. No standard PETinterim1 criteria could accurately distinguished responding from non-responding patients. Treatment was continued in 19/29 of patients with a first PERCIST PD; the subsequent PETinterim2 demonstrated iPDhomogeneous, iDR and PsPD in 42% (8/19), 26% (5/19), and 32% (6/19), respectively. Whereas no patients with iPDhomogeneous experienced a DCB, all patients with iDR and PsPD reached a clinical benefit to immunotherapy. CONCLUSION In patients with a first PD on PERCIST and treatment continuation, a subsequent PET identifies more than half of them with iDR and PsPD, both patterns being strongly associated with a clinical benefit of immunotherapy.
Collapse
Affiliation(s)
- O Humbert
- Department of Nuclear Medicine, Centre Antoine-Lacassagne, Université Côte d'Azur (UCA), 33 Avenue de Valombrose, 06189, Nice, France. .,Laboratory Transporter in Imaging and Radiotherapy in Oncology (TIRO), UMR E 4320, CEA, UCA, Nice, France.
| | - N Cadour
- Department of Nuclear Medicine, Centre Antoine-Lacassagne, Université Côte d'Azur (UCA), 33 Avenue de Valombrose, 06189, Nice, France
| | - M Paquet
- Department of Nuclear Medicine, Centre Antoine-Lacassagne, Université Côte d'Azur (UCA), 33 Avenue de Valombrose, 06189, Nice, France
| | - R Schiappa
- Department of Biostatistics, Centre Antoine-Lacassagne, UCA, Nice, France
| | - M Poudenx
- Department of Medical Oncology, Centre Antoine-Lacassagne, UCA, Nice, France
| | - D Chardin
- Department of Nuclear Medicine, Centre Antoine-Lacassagne, Université Côte d'Azur (UCA), 33 Avenue de Valombrose, 06189, Nice, France.,Laboratory Transporter in Imaging and Radiotherapy in Oncology (TIRO), UMR E 4320, CEA, UCA, Nice, France
| | - D Borchiellini
- Department of Medical Oncology, Centre Antoine-Lacassagne, UCA, Nice, France.,Clinical Research and Innovation Office, Centre Antoine-Lacassagne, UCA, Nice, France
| | - D Benisvy
- Department of Nuclear Medicine, Centre Antoine-Lacassagne, Université Côte d'Azur (UCA), 33 Avenue de Valombrose, 06189, Nice, France
| | - M J Ouvrier
- Department of Nuclear Medicine, Centre Antoine-Lacassagne, Université Côte d'Azur (UCA), 33 Avenue de Valombrose, 06189, Nice, France
| | - C Zwarthoed
- Department of Nuclear Medicine, Centre Antoine-Lacassagne, Université Côte d'Azur (UCA), 33 Avenue de Valombrose, 06189, Nice, France
| | - A Schiazza
- Department of Nuclear Medicine, Centre Antoine-Lacassagne, Université Côte d'Azur (UCA), 33 Avenue de Valombrose, 06189, Nice, France
| | - M Ilie
- Laboratory of Clinical and Experimental Pathology, Hospital-Integrated Biobank (BB-0033-00025), Nice Hospital University, FHU OncoAge, UCA, Nice, France
| | - H Ghalloussi
- Department of Medical Oncology, Centre Antoine-Lacassagne, UCA, Nice, France
| | - P M Koulibaly
- Department of Nuclear Medicine, Centre Antoine-Lacassagne, Université Côte d'Azur (UCA), 33 Avenue de Valombrose, 06189, Nice, France
| | - J Darcourt
- Department of Nuclear Medicine, Centre Antoine-Lacassagne, Université Côte d'Azur (UCA), 33 Avenue de Valombrose, 06189, Nice, France.,Laboratory Transporter in Imaging and Radiotherapy in Oncology (TIRO), UMR E 4320, CEA, UCA, Nice, France
| | - J Otto
- Department of Medical Oncology, Centre Antoine-Lacassagne, UCA, Nice, France
| |
Collapse
|
17
|
Paquet M, Arlt D, Knape J, Low M, Forslund P, Pärt T. Quantifying the links between land use and population growth rate in a declining farmland bird. Ecol Evol 2019; 9:868-879. [PMID: 30766676 PMCID: PMC6362438 DOI: 10.1002/ece3.4766] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 10/21/2018] [Revised: 11/13/2018] [Accepted: 11/05/2018] [Indexed: 11/17/2022] Open
Abstract
Land use is likely to be a key driver of population dynamics of species inhabiting anthropogenic landscapes, such as farmlands. Understanding the relationships between land use and variation in population growth rates is therefore critical for the management of many farmland species. Using 24 years of data of a declining farmland bird in an integrated population model, we examined how spatiotemporal variation in land use (defined as habitats with "Short" and "Tall" ground vegetation during the breeding season) and habitat-specific demographic parameters relates to variation in population growth taking into account individual movements between habitats. We also evaluated contributions to population growth using transient life table response experiments which gives information on contribution of past variation of parameters and real-time elasticities which suggests future scenarios to change growth rates. LTRE analyses revealed a clear contribution of Short habitats to the annual variation in population growth rate that was mostly due to fledgling recruitment, whereas there was no evidence for a contribution of Tall habitats. Only 18% of the variation in population growth was explained by the modeled local demography, the remaining variation being explained by apparent immigration (i.e., the residual variation). We discuss potential biological and methodological reasons for high contributions of apparent immigration in open populations. In line with LTRE analysis, real-time elasticity analysis revealed that demographic parameters linked to Short habitats had a stronger potential to influence population growth rate than those of Tall habitats. Most particularly, an increase of the proportion of Short sites occupied by Old breeders could have a distinct positive impact on population growth. High-quality Short habitats such as grazed pastures have been declining in southern Sweden. Converting low-quality to high-quality habitats could therefore change the present negative population trend of this, and other species with similar habitat requirements.
Collapse
Affiliation(s)
- Matthieu Paquet
- Department of EcologySwedish University of Agricultural SciencesUppsalaSweden
| | - Debora Arlt
- Department of EcologySwedish University of Agricultural SciencesUppsalaSweden
| | - Jonas Knape
- Department of EcologySwedish University of Agricultural SciencesUppsalaSweden
| | - Matthew Low
- Department of EcologySwedish University of Agricultural SciencesUppsalaSweden
| | - Pär Forslund
- Department of EcologySwedish University of Agricultural SciencesUppsalaSweden
| | - Tomas Pärt
- Department of EcologySwedish University of Agricultural SciencesUppsalaSweden
| |
Collapse
|
18
|
Petit M, Paquet M, Paulhac L, Kitchener P. Impact of serum on calcium transient assays performed on human-induced pluripotent stem cell-derived cardiomyocytes. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
19
|
Paquet M, Shivappa N, Hebert J, Truong T, Guenel P. Dietary inflammatory potential and differentiated thyroid carcinoma: A population-based case-control study in New Caledonia. Rev Epidemiol Sante Publique 2018. [DOI: 10.1016/j.respe.2018.05.319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
20
|
|
21
|
Georgiou Shippi A, Paquet M, Smiseth PT. Sex differences in parental defence against conspecific intruders in the burying beetle Nicrophorus vespilloides. Anim Behav 2018. [DOI: 10.1016/j.anbehav.2017.12.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
22
|
Mares R, Doutrelant C, Paquet M, Spottiswoode CN, Covas R. Breeding decisions and output are correlated with both temperature and rainfall in an arid-region passerine, the sociable weaver. R Soc Open Sci 2017; 4:170835. [PMID: 28989782 PMCID: PMC5627122 DOI: 10.1098/rsos.170835] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 08/09/2017] [Indexed: 05/23/2023]
Abstract
Animal reproductive cycles are commonly triggered by environmental cues of favourable breeding conditions. In arid environments, rainfall may be the most conspicuous cue, but the effects on reproduction of the high inter- and intra-annual variation in temperature remain poorly understood, despite being relevant to the current context of global warming. Here, we conducted a multiyear examination of the relationships between a suite of measures of temperature and rainfall, and the onset and length of the breeding season, the probability of breeding and reproductive output in an arid-region passerine, the sociable weaver (Philetairus socius). As expected, reproductive output increased with rainfall, yet specific relationships were conditional on the timing of rainfall: clutch production was correlated with rainfall throughout the season, whereas fledgling production was correlated with early summer rainfall. Moreover, we reveal novel correlations between aspects of breeding and temperature, indicative of earlier laying dates after warmer springs, and longer breeding seasons during cooler summers. These results have implications for understanding population trends under current climate change scenarios and call for more studies on the role of temperature in reproduction beyond those conducted on temperate-region species.
Collapse
Affiliation(s)
- Rafael Mares
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBio, Laboratório Associado, University of Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal
- INDICASAT-AIP, Ciudad del Saber, Panama City 0843-01103, Panama
| | - Claire Doutrelant
- CEFE-CNRS, 1919 Route de Mende, 34293 Montpellier, France
- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch 7701, South Africa
| | - Matthieu Paquet
- CEFE-CNRS, 1919 Route de Mende, 34293 Montpellier, France
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3FL, UK
| | - Claire N. Spottiswoode
- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch 7701, South Africa
- Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK
| | - Rita Covas
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBio, Laboratório Associado, University of Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal
- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch 7701, South Africa
| |
Collapse
|
23
|
Paquet M, Wotherspoon R, Smiseth PT. Caring males do not respond to cues about losses in paternity in the burying beetle Nicrophorus vespilloides. Anim Behav 2017. [DOI: 10.1016/j.anbehav.2017.03.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
24
|
Levesque E, Paquet M, Ducharme A, Albert M, Denault A, Cartier R, Lamarche Y. CONTEMPORARY OUTCOMES OF EXTRACORPOREAL OXYGENATION USE IN CARDIAC SUPPORT. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
25
|
Falk A, Hébert C, Paquet M, Tran A, Peyrade F, Saada E, Reure J, Dassonville O, Poissonnet G, Bozec A, Thariat J, Leysalle A, Chand M, Benezery K. EP-1084: Elderly patients concomitant radiotherapy + cetuximab in locally advanced head and neck cancer. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32334-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
26
|
Lee T, Paquet M, Larsson O, Pelletier J. Tumor cell survival dependence on the DHX9 DExH-box helicase. Oncogene 2016; 35:5093-105. [PMID: 26973242 PMCID: PMC5023453 DOI: 10.1038/onc.2016.52] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 01/13/2016] [Accepted: 02/01/2016] [Indexed: 12/23/2022]
Abstract
The ATP-dependent DExH/D-box helicase DHX9 is a key participant in a number of gene regulatory steps, including transcriptional, translational, microRNA-mediated control, DNA replication, and maintenance of genomic stability. DHX9 has also been implicated in tumor cell maintenance and drug response. Here, we report that inhibition of DHX9 expression is lethal to human cancer cell lines and murine Eµ−Myc lymphomas. Using a novel conditional shDHX9 mouse model, we demonstrate that sustained and prolonged (6 months) suppression of DHX9 does not result in any deleterious effects at the organismal level. Body weight, blood biochemistry, and histology of various tissues were comparable to control mice. Global gene expression profiling revealed that although reduction of DHX9 expression resulted in multiple transcriptome changes, these were relatively benign and did not lead to any discernible phenotype. Our results demonstrate a robust tolerance for systemic DHX9 suppression in vivo and support the targeting of DHX9 as an effective and specific chemotherapeutic approach.
Collapse
Affiliation(s)
- T Lee
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
| | - M Paquet
- Département de Pathologie et Microbiologie, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec
| | - O Larsson
- Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | - J Pelletier
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada.,Department of Oncology, McGill University, Montreal, Quebec, Canada.,Rosalind and Morris Goodman Cancer Research Center, McGill University, Montreal, Quebec, Canada
| |
Collapse
|
27
|
Doutrelant C, Paquet M, Renoult JP, Grégoire A, Crochet PA, Covas R. Worldwide patterns of bird colouration on islands. Ecol Lett 2016; 19:537-45. [DOI: 10.1111/ele.12588] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 01/08/2016] [Accepted: 01/27/2016] [Indexed: 12/25/2022]
Affiliation(s)
- Claire Doutrelant
- CEFE UMR 5175; CNRS - Univ. Montpellier - Univ. Paul-Valéry Montpellier- EPHE; 1919 route de Mende; 34293 Montpellier Cedex 5 France
- Percy FitzPatrick Institute; DST-NRF Centre of Excellence; University of Cape Town; Rondebosch 7701 South Africa
| | - Matthieu Paquet
- CEFE UMR 5175; CNRS - Univ. Montpellier - Univ. Paul-Valéry Montpellier- EPHE; 1919 route de Mende; 34293 Montpellier Cedex 5 France
| | - Julien P. Renoult
- ACTE UMR 8218; CNRS-Univ. Paris 1 Panthéon-Sorbonne; 47 rue des bergers; 75015 Paris France
| | - Arnaud Grégoire
- CEFE UMR 5175; CNRS - Univ. Montpellier - Univ. Paul-Valéry Montpellier- EPHE; 1919 route de Mende; 34293 Montpellier Cedex 5 France
| | - Pierre-André Crochet
- CEFE UMR 5175; CNRS - Univ. Montpellier - Univ. Paul-Valéry Montpellier- EPHE; 1919 route de Mende; 34293 Montpellier Cedex 5 France
| | - Rita Covas
- Percy FitzPatrick Institute; DST-NRF Centre of Excellence; University of Cape Town; Rondebosch 7701 South Africa
- CIBIO-InBio; University of Porto; Rua Monte-Crasto; 4485-661 Vairão Portugal
- Department of Biology; Science Faculty; University of Porto; Porto Portugal
| |
Collapse
|
28
|
|
29
|
|
30
|
Acker P, Grégoire A, Rat M, Spottiswoode CN, van Dijk RE, Paquet M, Kaden JC, Pradel R, Hatchwell BJ, Covas R, Doutrelant C. Disruptive viability selection on a black plumage trait associated with dominance. J Evol Biol 2015; 28:2027-41. [PMID: 26249359 PMCID: PMC4949555 DOI: 10.1111/jeb.12717] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 03/17/2015] [Revised: 07/26/2015] [Accepted: 08/01/2015] [Indexed: 11/30/2022]
Abstract
Traits used in communication, such as colour signals, are expected to have positive consequences for reproductive success, but their associations with survival are little understood. Previous studies have mainly investigated linear relationships between signals and survival, but both hump-shaped and U-shaped relationships can also be predicted, depending on the main costs involved in trait expression. Furthermore, few studies have taken the plasticity of signals into account in viability selection analyses. The relationship between signal expression and survival is of particular interest in melanin-based traits, because their main costs are still debated. Here, we first determined the main factors explaining variability in a melanin-based trait linked to dominance: the bib size of a colonial bird, the sociable weaver Philetairus socius. We then used these analyses to obtain a measure representative of the individual mean expression of bib size. Finally, we used capture-recapture models to study how survival varied in relation to bib size. Variation in bib size was strongly affected by year and moderately affected by age, body condition and colony size. In addition, individuals bearing small and large bibs had higher survival than those with intermediate bibs, and this U-shaped relationship between survival and bib size appeared to be more pronounced in some years than others. These results constitute a rare example of disruptive viability selection, and point towards the potential importance of social costs incurred by the dominance signalling function of badges of status.
Collapse
Affiliation(s)
- P Acker
- CEFE UMR 5175, CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - EPHE, Montpellier Cedex 05, France.,Laboratoire Évolution & Diversité Biologique (UMR 5174 EDB), Université Toulouse 3 Paul Sabatier - CNRS - ENFA, Toulouse, France
| | - A Grégoire
- CEFE UMR 5175, CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - EPHE, Montpellier Cedex 05, France
| | - M Rat
- Percy FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch, South Africa
| | - C N Spottiswoode
- Percy FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch, South Africa.,Department of Zoology, University of Cambridge, Cambridge, UK
| | - R E van Dijk
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK
| | - M Paquet
- CEFE UMR 5175, CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - EPHE, Montpellier Cedex 05, France.,Percy FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch, South Africa
| | - J C Kaden
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK.,The Royal Zoological Society of Scotland, Edinburgh Zoo, Edinburgh, UK
| | - R Pradel
- CEFE UMR 5175, CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - EPHE, Montpellier Cedex 05, France
| | - B J Hatchwell
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK
| | - R Covas
- Percy FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch, South Africa.,CIBIO, University of Porto, Vairão, Portugal.,Biology Department, Science Faculty, University of Porto, Porto, Portugal
| | - C Doutrelant
- CEFE UMR 5175, CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - EPHE, Montpellier Cedex 05, France.,Percy FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch, South Africa
| |
Collapse
|
31
|
Werner R, Stockfleth E, Connolly S, Correia O, Erdmann R, Foley P, Gupta A, Jacobs A, Kerl H, Lim H, Martin G, Paquet M, Pariser D, Rosumeck S, Röwert-Huber HJ, Sahota A, Sangueza O, Shumack S, Sporbeck B, Swanson N, Torezan L, Nast A. Evidence- and consensus-based (S3) Guidelines for the Treatment of Actinic Keratosis - International League of Dermatological Societies in cooperation with the European Dermatology Forum - Short version. J Eur Acad Dermatol Venereol 2015; 29:2069-79. [DOI: 10.1111/jdv.13180] [Citation(s) in RCA: 188] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 04/02/2015] [Indexed: 12/22/2022]
Affiliation(s)
- R.N. Werner
- Division of Evidence Based Medicine (dEBM), Department of Dematology, Venerology and Allergology; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - E. Stockfleth
- Department of Dermatology, Venerology and Allergology; Skin Cancer Center (HTCC); Charité - Universitätsmedizin Berlin; Berlin Germany
| | - S.M. Connolly
- Department of Dermatology; Mayo Clinic; Scottsdale Arizona USA
| | - O. Correia
- Centro Dermatologia Epidermis; Instituto CUF and Faculty of Medicine of University of Porto; Porto Portugal
| | - R. Erdmann
- Division of Evidence Based Medicine (dEBM), Department of Dematology, Venerology and Allergology; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - P. Foley
- Skin and Cancer Foundation Victoria; Carlton Victoria Australia
- St. Vincent's Hospital Melbourne; Fitzroy Victoria Australia
- The University of Melbourne; Melbourne Victoria Australia
| | - A.K. Gupta
- Division of Dermatology; Department of Medicine; University of Toronto; Toronto Ontario Canada
- Mediprobe Research Inc.; London Ontario Canada
| | - A. Jacobs
- Division of Evidence Based Medicine (dEBM), Department of Dematology, Venerology and Allergology; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - H. Kerl
- Department of Dermatology; Medical University of Graz; Graz Austria
| | - H.W. Lim
- Department of Dermatology; Henry Ford Hospital; Detroit Michigan USA
| | - G. Martin
- Dermatology Laser Center of Maui; Kihei Hawaii USA
| | - M. Paquet
- Mediprobe Research Inc.; London Ontario Canada
| | - D.M. Pariser
- Division of Dermatology and Virginia Clinical Research Inc; Eastern Virginia Medical School; Norfolk Virginia USA
| | - S. Rosumeck
- Division of Evidence Based Medicine (dEBM), Department of Dematology, Venerology and Allergology; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - H.-J. Röwert-Huber
- Division of Dermatopathology; Department of Dermatology, Venerology and Allergology; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - A. Sahota
- Department of Dermatology; Whipps Cross University Hospital; London UK
| | - O.P. Sangueza
- Department of Pathology; Wake Forest Baptist Medical Center; Winston-Salem North Carolina USA
- Department of Dermatology; Wake Forest Baptist Medical Center; Winston-Salem North Carolina USA
| | - S. Shumack
- Department of Dermatology; Northern Medical School; University of Sydney; Sydney New South Wales Australia
| | - B. Sporbeck
- Division of Evidence Based Medicine (dEBM), Department of Dematology, Venerology and Allergology; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - N.A. Swanson
- Dermatology, Surgery, and Otolaryngology; Oregon Health and Science University; Portland Oregon USA
- Surgical and Cosmetic Dermatology and Clinical Operations; Oregon Health and Science University Knight Cancer Institute; Portland Oregon USA
| | - L. Torezan
- Faculty of Medicine; Hospital das Clínicas; Universidade de São Paulo; São Paulo Brazil
| | - A. Nast
- Division of Evidence Based Medicine (dEBM), Department of Dematology, Venerology and Allergology; Charité - Universitätsmedizin Berlin; Berlin Germany
| |
Collapse
|
32
|
Paquet M, Doutrelant C, Hatchwell BJ, Spottiswoode CN, Covas R. Antagonistic effect of helpers on breeding male and female survival in a cooperatively breeding bird. J Anim Ecol 2015; 84:1354-62. [PMID: 25850564 PMCID: PMC4557059 DOI: 10.1111/1365-2656.12377] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 03/31/2015] [Indexed: 11/28/2022]
Abstract
1. Cooperatively breeding species are typically long lived and hence, according to theory, are expected to maximize their lifetime reproductive success through maximizing survival. Under these circumstances, the presence of helpers could be used to lighten the effort of current reproduction for parents to achieve higher survival. 2. In addition, individuals of different sexes and ages may follow different strategies, but whether male and female breeders and individuals of different ages benefit differently from the presence of helpers has often been overlooked. Moreover, only one study that investigated the relationship between parental survival and the presence of helpers used capture-mark-recapture analyses (CMR). These methods are important since they allow us to account for the non-detection of individuals that are alive in the population but not detected, and thus, the effects on survival and recapture probability to be disentangled. 3. Here, we used multi-event CMR methods to investigate whether the number of helpers was associated with an increase in survival probability for male and female breeders of different ages in the sociable weaver Philetairus socius. In this species, both sexes reduce their feeding rate in the presence of helpers. We therefore predicted that the presence of helpers should increase the breeders' survival in both sexes, especially early in life when individuals potentially have more future breeding opportunities. In addition, sociable weaver females reduce their investment in eggs in the presence of helpers, so we predicted a stronger effect of helpers on female than male survival. 4. As expected we found that females had a higher survival probability when breeding with more helpers. Unexpectedly, however, male survival probability decreased with increasing number of helpers. This antagonistic effect diminished as the breeders grew older. 5. These results illustrate the complexity of fitness costs and benefits underlying cooperative behaviours and how these may vary with the individuals' sex and age. They also highlight the need for further studies on the sex-specific effects of helpers on survival.
Collapse
Affiliation(s)
- Matthieu Paquet
- CEFE-CNRS1919 Route de Mende, 34293, Montpellier, France
- Percy FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape TownCape Town, South Africa
| | | | - Ben J Hatchwell
- Department of Animal and Plant Sciences, University of SheffieldWestern Bank, Sheffield, UK
| | - Claire N Spottiswoode
- Percy FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape TownCape Town, South Africa
- Department of Zoology, University of CambridgeDowning Street, Cambridge, CB2 3EJ, UK
| | - Rita Covas
- Percy FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape TownCape Town, South Africa
- CIBIO, Research Centre in Biodiversity and Genetic ResourcesCampus Agrário de Vairão, Rua Padre Armando Quintas, 4485-661, Vairão, Portugal
- Biology Department, Science Faculty, University of PortoPorto, Portugal
| |
Collapse
|
33
|
Le Galliard JF, Paquet M, Mugabo M. An experimental test of density-dependent selection on temperament traits of activity, boldness and sociability. J Evol Biol 2015; 28:1144-55. [PMID: 25865798 DOI: 10.1111/jeb.12641] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [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: 12/15/2014] [Revised: 03/10/2015] [Accepted: 04/07/2015] [Indexed: 11/30/2022]
Abstract
Temperament traits are seen in many animal species, and recent evolutionary models predict that they could be maintained by heterogeneous selection. We tested this prediction by examining density-dependent selection in juvenile common lizards Zootoca vivipara scored for activity, boldness and sociability at birth and at the age of 1 year. We measured three key life-history traits (juvenile survival, body growth rate and reproduction) and quantified selection in experimental populations at five density levels ranging from low to high values. We observed consistent individual differences for all behaviours on the short term, but only for activity and one boldness measure across the first year of life. At low density, growth selection favoured more sociable lizards, whereas viability selection favoured less active individuals. A significant negative correlational selection on activity and boldness existed for body growth rate irrespective of density. Thus, behavioural traits were characterized by limited ontogenic consistency, and natural selection was heterogeneous between density treatments and fitness traits. This confirms that density-dependent selection plays an important role in the maintenance of individual differences in exploration-activity and sociability.
Collapse
Affiliation(s)
- J-F Le Galliard
- CNRS, UMR 7618, iEES Paris, Université Pierre et Marie Curie, Paris, France.,CNRS/ENS UMS 3194, CEREEP - Ecotron IleDeFrance, École Normale Supérieure, St-Pierre-lès-Nemours, France
| | - M Paquet
- CNRS, UMR 7618, iEES Paris, Université Pierre et Marie Curie, Paris, France.,Percy Fitzpatrick Institute, DST/NRF Centre of Excellence, University of Cape Town, Cape Town, South Africa
| | - M Mugabo
- CNRS, UMR 7618, iEES Paris, Université Pierre et Marie Curie, Paris, France.,School of Biology, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| |
Collapse
|
34
|
Paquet M, Covas R, Doutrelant C. A cross-fostering experiment reveals that prenatal environment affects begging behaviour in a cooperative breeder. Anim Behav 2015. [DOI: 10.1016/j.anbehav.2015.01.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
35
|
Lambrot R, Xu C, Saint-Phar S, Chountalos G, Cohen T, Paquet M, Suderman M, Hallett M, Kimmins S. Low paternal dietary folate alters the mouse sperm epigenome and is associated with negative pregnancy outcomes. Nat Commun 2014; 4:2889. [PMID: 24326934 PMCID: PMC3863903 DOI: 10.1038/ncomms3889] [Citation(s) in RCA: 281] [Impact Index Per Article: 28.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 11/07/2013] [Indexed: 01/20/2023] Open
Abstract
Epidemiological studies suggest that a father's diet can influence offspring health. A proposed mechanism for paternal transmission of environmental information is via the sperm epigenome. The epigenome includes heritable information such as DNA methylation. We hypothesize that the dietary supply of methyl donors will alter epigenetic reprogramming in sperm. Here we feed male mice either a folate-deficient or folate-sufficient diet throughout life. Paternal folate deficiency is associated with increased birth defects in the offspring, which include craniofacial and musculoskeletal malformations. Genome-wide DNA methylation analysis and the subsequent functional analysis identify differential methylation in sperm of genes implicated in development, chronic diseases such as cancer, diabetes, autism and schizophrenia. While >300 genes are differentially expressed in offspring placenta, only two correspond to genes with differential methylation in sperm. This model suggests epigenetic transmission may involve sperm histone H3 methylation or DNA methylation and that adequate paternal dietary folate is essential for offspring health.
Collapse
Affiliation(s)
- R Lambrot
- 1] Department of Animal Science, McGill University, Ste Anne-de-Bellevue, Québec H9X3V9, Canada [2]
| | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Gupta AK, Paquet M. Network meta-analysis of the outcome 'participant complete clearance' in nonimmunosuppressed participants of eight interventions for actinic keratosis: a follow-up on a Cochrane review. Br J Dermatol 2014; 169:250-9. [PMID: 23550994 DOI: 10.1111/bjd.12343] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2013] [Indexed: 12/20/2022]
Abstract
The conclusions of pairwise meta-analyses of interventions for actinic keratosis (AK) are limited due to the lack of direct comparison between some interventions. Consequently, we performed a network meta-analysis for eight treatments [5-aminolaevulinic acid (ALA)-photodynamic therapy (PDT), cryotherapy, diclofenac 3% in 2·5% hyaluronic acid (DCF/HA), 5-fluorouracil (5-FU) 0·5% or 5·0%, imiquimod (IMI) 5%, ingenol mebutate (IMB) 0·015-0·05%, methyl aminolaevulinate (MAL)-PDT and placebo/vehicle (including placebo-PDT)] to determine their relative efficacies. As part of a prior Cochrane systematic review, different databases and grey literature were searched for randomized controlled trials up to April 2012. The inclusion criteria were parallel-group studies with nonimmunosuppressed participants: (i) reporting 'participant complete clearance' and (ii) comparing at least two of the interventions. Thirty-two publications met the criteria and they included the following number of individual or pooled studies (n) and total number of participants (N) for the different interventions: 5-FU 0·5% (n = 4, N = 169), 5-FU 5·0% (n = 2, N = 44), ALA-PDT (n = 6, N = 739), cryotherapy (n = 2, N = 174), DCF/HA (n = 5, N = 299), IMI (n = 14, N = 1411), IMB (n = 3, N = 560), MAL-PDT (n = 7, N = 557) and placebo (n = 32, N = 2520). Network analyses using a random-effects Bayesian model were carried out with the software ADDIS v1.16.1. The interventions were ranked as follows based on calculated probabilities and odd ratios: 5-FU > ALA-PDT ≈ IMI ≈ IMB ≈ MAL-PDT > cryotherapy > DCF/HA > placebo. This efficacy ranking was obtained based on the current available data on 'participant complete clearance' from randomized controlled trials and the analysis model used. However, several other factors should also be considered when prescribing a treatment for AK.
Collapse
Affiliation(s)
- A K Gupta
- Department of Medicine, University of Toronto, Toronto, ON, Canada.
| | | |
Collapse
|
37
|
Gupta A, Richardson M, Paquet M. Systematic Review of Oral Treatments for Seborrheic Dermatitis. J Eur Acad Dermatol Venereol 2013; 28:16-26. [DOI: 10.1111/jdv.12197] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Accepted: 05/15/2013] [Indexed: 11/26/2022]
Affiliation(s)
- A.K. Gupta
- Division of Dermatology; Department of Medicine; University of Toronto; Toronto ON Canada
- Mediprobe Laboratories; London ON Canada
| | | | - M. Paquet
- Mediprobe Laboratories; London ON Canada
| |
Collapse
|
38
|
Gupta AK, Paquet M. Network meta-analysis of the outcome 'participant complete clearance' in nonimmunosuppressed participants of eight interventions for actinic keratosis: a follow-up on a Cochrane review. Br J Dermatol 2013. [PMID: 23550994 DOI: 10.1111/bjd.12343.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The conclusions of pairwise meta-analyses of interventions for actinic keratosis (AK) are limited due to the lack of direct comparison between some interventions. Consequently, we performed a network meta-analysis for eight treatments [5-aminolaevulinic acid (ALA)-photodynamic therapy (PDT), cryotherapy, diclofenac 3% in 2·5% hyaluronic acid (DCF/HA), 5-fluorouracil (5-FU) 0·5% or 5·0%, imiquimod (IMI) 5%, ingenol mebutate (IMB) 0·015-0·05%, methyl aminolaevulinate (MAL)-PDT and placebo/vehicle (including placebo-PDT)] to determine their relative efficacies. As part of a prior Cochrane systematic review, different databases and grey literature were searched for randomized controlled trials up to April 2012. The inclusion criteria were parallel-group studies with nonimmunosuppressed participants: (i) reporting 'participant complete clearance' and (ii) comparing at least two of the interventions. Thirty-two publications met the criteria and they included the following number of individual or pooled studies (n) and total number of participants (N) for the different interventions: 5-FU 0·5% (n = 4, N = 169), 5-FU 5·0% (n = 2, N = 44), ALA-PDT (n = 6, N = 739), cryotherapy (n = 2, N = 174), DCF/HA (n = 5, N = 299), IMI (n = 14, N = 1411), IMB (n = 3, N = 560), MAL-PDT (n = 7, N = 557) and placebo (n = 32, N = 2520). Network analyses using a random-effects Bayesian model were carried out with the software ADDIS v1.16.1. The interventions were ranked as follows based on calculated probabilities and odd ratios: 5-FU > ALA-PDT ≈ IMI ≈ IMB ≈ MAL-PDT > cryotherapy > DCF/HA > placebo. This efficacy ranking was obtained based on the current available data on 'participant complete clearance' from randomized controlled trials and the analysis model used. However, several other factors should also be considered when prescribing a treatment for AK.
Collapse
Affiliation(s)
- A K Gupta
- Department of Medicine, University of Toronto, Toronto, ON, Canada.
| | | |
Collapse
|
39
|
Paquet M, Covas R, Chastel O, Parenteau C, Doutrelant C. Maternal effects in relation to helper presence in the cooperatively breeding sociable weaver. PLoS One 2013; 8:e59336. [PMID: 23536872 PMCID: PMC3607610 DOI: 10.1371/journal.pone.0059336] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Accepted: 02/15/2013] [Indexed: 11/29/2022] Open
Abstract
In egg laying species, breeding females may adjust the allocation of nutrients or other substances into eggs in order to maximise offspring or maternal fitness. Cooperatively breeding species offer a particularly interesting context in which to study maternal allocation because helpers create predictably improved conditions during offspring development. Some recent studies on cooperative species showed that females assisted by helpers produced smaller eggs, as the additional food brought by the helpers appeared to compensate for this reduction in egg size. However, it remains unclear how common this effect might be. Also currently unknown is whether females change egg composition when assisted by helpers. This effect is predicted by current maternal allocation theory, but has not been previously investigated. We studied egg mass and contents in sociable weavers (Philetairus socius). We found that egg mass decreased with group size, while fledgling mass did not vary, suggesting that helpers may compensate for the reduced investment in eggs. We found no differences in eggs' carotenoid contents, but females assisted by helpers produced eggs with lower hormonal content, specifically testosterone, androstenedione (A4) and corticosterone levels. Taken together, these results suggest that the environment created by helpers can influence maternal allocation and potentially offspring phenotypes.
Collapse
|
40
|
Le Galliard JF, Paquet M, Cisel M, Montes-Poloni L. Personality and the pace-of-life syndrome: variation and selection on exploration, metabolism and locomotor performances. Funct Ecol 2012. [DOI: 10.1111/1365-2435.12017] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
| | - Matthieu Paquet
- CNRS; UMR 7625; Laboratoire Ecologie et Evolution; Université Pierre et Marie Curie; 7 Quai St. Bernard; 75005; Paris; France
| | - Matthieu Cisel
- CNRS; UMR 7625; Laboratoire Ecologie et Evolution; Université Pierre et Marie Curie; 7 Quai St. Bernard; 75005; Paris; France
| | - Laetitia Montes-Poloni
- UPMC/CNRS; UMR 7193; Institut des Sciences de la Terre Paris; Université Pierre et Marie Curie; 4 place Jussieu, BC no. 19; 75005; Paris; France
| |
Collapse
|
41
|
Yuki K, Eva M, Richer E, Chung D, Paquet M, Canonne-Hergaux F, Vaulont S, Vidal S, Malo D. Suppression of hepcidin expression and iron overload mediate Salmonella susceptibility in ankyrin 1 ENU-induced mutant. Int J Infect Dis 2012. [DOI: 10.1016/j.ijid.2012.05.386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
|
42
|
Gupta A, Paquet M, Simpson F, Tavakkol A. Terbinafine in the treatment of dermatophyte toenail onychomycosis: a meta-analysis of efficacy for continuous and intermittent regimens. J Eur Acad Dermatol Venereol 2012; 27:267-72. [DOI: 10.1111/j.1468-3083.2012.04584.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
43
|
Richer E, Yuki KE, Dauphinee SM, Larivière L, Paquet M, Malo D. Impact of Usp18 and IFN signaling in Salmonella-induced typhlitis. Genes Immun 2011; 12:531-43. [DOI: 10.1038/gene.2011.38] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
44
|
Paquet M, Galliard JFL, Perret S, Pantelic Z. Effects of miniature transponders on physiological stress, locomotor activity, growth and survival in small lizards. AMPHIBIA-REPTILIA 2011. [DOI: 10.1163/017353710x552371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
AbstractThe marking of small animals for long-term ecological studies requires unambiguous and permanent techniques that cause minimal harm. Toe-clipping is frequently used to identify small lizards in the field, but it has been suggested that passive integrated transponders (PIT tags) should be preferred. Here, we evaluate the costs and benefits of new miniature PIT tags to mark the common lizard (Zootoca vivipara). Our protocol enables permanent marking of lizards as small as 1.3 grams with maximal implantation success in the abdominal cavity. Tag injection caused no observable increase in plasma corticosterone levels over five days and no negative effects on long-term growth and survival. However, tag injection had negative effects on locomotor activity during at least 7 days, possibly implying pain. Continuous research to improve tag implantation is needed because negative effects may be caused by anaesthesia and injection rather the tag retention itself. This study demonstrates the utility of combining physiological, behavioural and life history measurements to assess marking stress and pain in animals.
Collapse
Affiliation(s)
- Matthieu Paquet
- 1CNRS/UPMC/ENS, UMR 7625, Laboratoire Ecologie & Evolution, Université Pierre et Marie Curie, 7 Quai St. Bernard, 75005, Paris, France
| | - Jean-François Le Galliard
- 2CNRS/UPMC/ENS, UMR 7625, Laboratoire Ecologie & Evolution, Université Pierre et Marie Curie, 7 Quai St. Bernard, 75005, Paris, France, CNRS, UMS 3194, CEREEP-Ecotron Ile-de-France, Ecole Normale Supérieure, 78 rue du Château, 77140 St Pierre les Nemours;,
| | - Samuel Perret
- 3CNRS, UMS 3194, CEREEP-Ecotron Ile-de-France, Ecole Normale Supérieure, 78 rue du Château, 77140 St Pierre les Nemours
| | - Zorica Pantelic
- 4Nonatec, Lutronic International, 1 rue de L'Industrie, L4830 Rodange, Luxembourg
| |
Collapse
|
45
|
Hudon V, Sabourin S, Dydensborg AB, Kottis V, Ghazi A, Paquet M, Crosby K, Pomerleau V, Uetani N, Pause A. Renal tumour suppressor function of the Birt-Hogg-Dubé syndrome gene product folliculin. J Med Genet 2009; 47:182-9. [PMID: 19843504 DOI: 10.1136/jmg.2009.072009] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Renal cell carcinoma (RCC) comprises five major molecular and histological subtypes. The Birt-Hogg-Dubé (BHD) syndrome is a hereditary human cancer syndrome that predisposes affected individuals to develop renal carcinoma of nearly all subtypes, in addition to benign fibrofolliculomas, and pulmonary and renal cysts. BHD is caused by loss-of-function mutations in the folliculin (FLCN) protein. The molecular function of FLCN is still largely unknown; opposite and conflicting evidence of the role of FLCN in mammalian target of rapamycin signalling/phosphorylated ribosomal protein S6 (p-S6) activation had recently been reported. RESULTS AND METHODS Here, the expression pattern of murine Flcn was described, and it was observed that homozygous disruption of Flcn results in embryonic lethality early during development. Importantly, heterozygous animals manifest early preneoplastic kidney lesions, devoid of Flcn expression, that progress towards malignancy, including cystopapillary adenomas. A bona fide tumour suppressor activity of FLCN was confirmed by nude mouse xenograft assays of two human RCC cell lines with either diminished or re-expressed FLCN. It was observed that loss of FLCN expression leads to context-dependent effects on S6 activation. Indeed, solid tumours and normal kidneys show decreased p-S6 upon diminished FLCN expression. Conversely, p-S6 is found to be elevated or absent in FLCN-negative renal cysts. CONCLUSION In accordance with clinical data showing distinct renal malignancies arising in BHD patients, in this study FLCN is shown as a general tumour suppressor in the kidney.
Collapse
Affiliation(s)
- V Hudon
- Goodman Cancer Centre, McGill University, Room 707A, McIntyre Building, 3655 Sir William Osler Promenade, Montréal, Québec, Canada H3G1Y6
| | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Springer A, Shetty A, Elliott A, Paquet M, Wang J, Scwartz J, Hazle J, Stafford R. SU-GG-J-136: Nanoshell-Mediated Laser Induced Thermal Therapy in An In Vivo Model. Med Phys 2008. [DOI: 10.1118/1.2961685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
47
|
Jasaitis Y, Sergent F, Bridoux V, Paquet M, Marpeau L, Ténière P. Prise en charge des grossesses après anneau gastrique ajustable. ACTA ACUST UNITED AC 2007; 36:764-9. [PMID: 17512137 DOI: 10.1016/j.jgyn.2007.03.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2006] [Revised: 12/29/2006] [Accepted: 03/20/2007] [Indexed: 10/28/2022]
Abstract
OBJECTIVES To report our experience of the association adjustable gastric banding and pregnancy. To define a management for a such association. MATERIALS AND METHODS Retrospective and descriptive study on two centers over a 3-year follow-up of pregnancies begun with a Lap-Band gastric banding placed by laparoscopic way. RESULTS Twenty-one pregnancies, 22 newborns resulting from 18 women were identified. Eleven patients were hospitalized. The motive of the hospitalization was severe epigastralgia for four patients requiring three deflations for mechanical complication. No case of preeclampsia was identified. Seven bands were deflated. In the group of the deflated bands, the mean maternal weight gain was 19 vs 10 kg (P=0.008), the mean birth weight was 3700 vs 3204 g (P=0.09) with a rate of fetal macrosomia increased, 50 vs 29% (P=0.038). The difference between the rates of cesarean delivery was not significant (NS) between the two groups. The childbirth term was appreciably the same, 39.4 vs 38.6 weeks of gestation (NS). The only case of gestational diabetes was found in the deflated band group. Three intrauterine growth restrictions whose one fetal death occurred in the not deflated band group. CONCLUSION Results obtained were comparable to those of the literature. This series confirms that adjustable gastric banding limits the usual complications of the morbid obesity during pregnancy. It is generally well tolerated and must not be thus deflated by principle, but only on symptoms. That will be a total dysphagia, severe epigastric pains, vomiting after the first trimester of pregnancy or an intrauterine growth restriction.
Collapse
Affiliation(s)
- Y Jasaitis
- Service de gynécologie obstétrique, CHU de Rouen, 76031 Rouen cedex, France
| | | | | | | | | | | |
Collapse
|
48
|
Sentilhes L, Sergent F, Popovic I, Fournet P, Paquet M, Marpeau L. Facteurs prédictifs de rupture utérine obstétricale après hystéroscopie opératoire. ACTA ACUST UNITED AC 2004; 33:51-5. [PMID: 14968056 DOI: 10.1016/s0368-2315(04)96313-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
OBJECTIVES To identify factors predictive of uterine rupture after operative hysteroscopy. When these factors are present, to search for means to prevent a later uterine rupture. Lastly to specify criteria allowing extraction of the fetus before rupture. PATIENTS AND METHODS Dramatic description of a case of uterine rupture, in a patient who presented a history of uterine perforation secondary to operative hysteroscopy and retrospective analysis of 12 similar observations reported in the literature. RESULTS Two types of situations must be differentiated: uncomplicated hysteroscopic resection of a polyp or sub-mucous fibroid does not seem to modify the obstetrical outcome; metroplasty for uterine malformation, complex synechia resections, and uterine perforations using monopolar current section are high-risk situations predictive of uterine rupture during pregnancy. CONCLUSION Uterine ruptures secondary to operative hysteroscopy are rare but serious. They can occur before onset of labor, and compromise vital maternofetal outcome. Risk factors can be identified, but nothing can prevent natural history towards uterine rupture during pregnancy. The obstetrician's vigilance in this context must be extreme searching for the least clinical sign in favor of a pre-rupture of the uterus. Furthermore, systematic caesarean is not justified.
Collapse
Affiliation(s)
- L Sentilhes
- Clinique Gynécologique et Obstétricale, Hôpital Charles Nicolle, 1, rue de Germont, 76031 Rouen Cedex.
| | | | | | | | | | | |
Collapse
|
49
|
Boyer A, Paquet M, Raiwet D, Daneau I, Harrison W, Silversides DW. Rapid genomic identification of transgenic integration sites for mouse insertional mutants. Biotechniques 2003; 34:32-4, 36. [PMID: 12545534 DOI: 10.2144/03341bm03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Affiliation(s)
- A Boyer
- University of Montreal, St-Hyacinthe, Québec, Canada
| | | | | | | | | | | |
Collapse
|
50
|
Xu J, Paquet M, Lau AG, Wood JD, Ross CA, Hall RA. beta 1-adrenergic receptor association with the synaptic scaffolding protein membrane-associated guanylate kinase inverted-2 (MAGI-2). Differential regulation of receptor internalization by MAGI-2 and PSD-95. J Biol Chem 2001; 276:41310-7. [PMID: 11526121 DOI: 10.1074/jbc.m107480200] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The beta1-adrenergic receptor (beta1AR) is known to be localized to synapses and to modulate synaptic plasticity in many brain regions, but the molecular mechanisms determining beta1AR subcellular localization are not fully understood. Using overlay and pull-down techniques, we found that the beta1AR carboxyl terminus associates with MAGI-2 (membrane-associated guanylate kinase inverted-2), a protein also known as S-SCAM (synaptic scaffolding molecule). MAGI-2 is a multidomain scaffolding protein that contains nine potential protein-protein interaction modules, including 6 PDZ domains, 2 WW domains, and a guanylate kinase-like domain. The beta1AR carboxyl terminus binds with high affinity to the first PDZ domain of MAGI-2, with the last few amino acids of the beta1AR carboxyl terminus being the key determinants of the interaction. In cells, the association of full-length beta1AR with MAGI-2 occurs constitutively and is enhanced by agonist stimulation of the receptor, as assessed by both co-immunoprecipitation experiments and immunofluorescence co-localization studies. Agonist-induced internalization of the beta1AR is markedly increased by co-expression with MAGI-2. Strikingly, this result is the opposite of the effect of co-expression with PSD-95, a previously reported binding partner of the beta1AR. Further cellular experiments revealed that MAGI-2 has no effect on beta1AR oligomerization but does promote association of beta1AR with the cytoplasmic signaling protein beta-catenin, a known MAGI-2 binding partner. These data reveal that MAGI-2 is a specific beta1AR binding partner that modulates beta1AR function and facilitates the physical association of the beta1AR with intracellular proteins involved in signal transduction and synaptic regulation.
Collapse
Affiliation(s)
- J Xu
- Department of Pharmacology, Rollins Research Center, Emory University School of Medicine, Atlanta, Georgia 30322, USA
| | | | | | | | | | | |
Collapse
|