16 results on '"Bonnot, Nadège C."'
Search Results
2. Reproductive tactics, birth timing and the risk-resource trade-off in an income breeder
- Author
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Benoit, Laura, primary, Morellet, Nicolas, additional, Bonnot, Nadège C., additional, Cargnelutti, Bruno, additional, Chaval, Yannick, additional, Gaillard, Jean-Michel, additional, Loison, Anne, additional, Lourtet, Bruno, additional, Marchand, Pascal, additional, Coulon, Aurélie, additional, and Hewison, A. J. Mark, additional
- Published
- 2023
- Full Text
- View/download PDF
3. Boldness-mediated habitat use tactics and reproductive success in a wild large herbivore
- Author
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Bonnot, Nadège C., Goulard, Michel, Hewison, A.J. Mark, Cargnelutti, Bruno, Lourtet, Bruno, Chaval, Yannick, and Morellet, Nicolas
- Published
- 2018
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- View/download PDF
4. Who’s afraid of the big bad wolf? Variation in the stress response among personalities and populations in a large wild herbivore
- Author
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Bonnot, Nadège C., Bergvall, Ulrika A., Jarnemo, Anders, and Kjellander, Petter
- Published
- 2018
5. Using accelerometers to infer behaviour of cryptic species in the wild
- Author
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Benoit, Laura, primary, Bonnot, Nadège C., additional, Debeffe, Lucie, additional, Grémillet, David, additional, Hewison, A.J. Mark, additional, Marchand, Pascal, additional, Puch, Laura, additional, Bonnet, Arnaud, additional, Cargnelutti, Bruno, additional, Cebe, Nicolas, additional, Lourtet, Bruno, additional, Coulon, Aurélie, additional, and Morellet, Nicolas, additional
- Published
- 2023
- Full Text
- View/download PDF
6. Back and forth: day-night alternation between cover types reveals complementary use of habitats in a large herbivore
- Author
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De Groeve, Johannes, primary, Cagnacci, Francesca, additional, de Weghe, Nico Van, additional, Ranc, Nathan, additional, Morellet, Nicolas, additional, Bonnot, Nadège C., additional, Gehr, Benedikt, additional, Heurich, Marco, additional, Hewison, Mark A.J., additional, Kröschel, Max, additional, Linnell, John D.C., additional, Mysterud, Atle, additional, and Sandfort, Robin, additional
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- 2022
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- View/download PDF
7. Mouvements Individuels - Méthode d'analyse de séquences (IM-SAM): caractérisation des patrons spatio-temporels de l'utilisation de l'habitat par les animaux à travers le paysage
- Author
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De Groeve, Johannes, Cagnacci, Francesca, Ranc, Nathan, Bonnot, Nadège C, Gehr, Benedikt, Heurich, Marco, Hewison, A J Mark, Kroeschel, Max, Linnell, John D C, Morellet, Nicolas, Mysterud, Atle, Sandfort, Robin, Van De Weghe, Nico, Universiteit Gent = Ghent University [Belgium] (UGENT), Fondazione Edmund Mach - Edmund Mach Foundation [Italie] (FEM), Harvard University [Cambridge], Ecosystèmes forestiers (UR EFNO), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Universität Zürich [Zürich] = University of Zurich (UZH), Bavarian Forest National Park, University of Freiburg [Freiburg], Unité de recherche Comportement et Ecologie de la Faune Sauvage (CEFS), Forest Research Institute Baden-Württemberg - Forstliche Versuchs- und Forschungsanstalt Baden-Württemberg, Norwegian Institute for Nature Research (NINA), University of Oslo (UiO), Universität für Bodenkultur Wien [Vienne, Autriche] (BOKU), FEM-FIRST : 01sf2313, Bijzonder Onderzoeksfonds : 01sf2313, FWO : V417616N, Autonomous Province of Trento : 3479, Research Council of Norway : 251112, ANR-16-CE02-0010,Mov-It,Le mouvement des ongulés au sein de paysages hétérogènes: identification des processus comportementaux reliant les changements globaux aux performances démographiques et à la gestion spatialement explicite(2016), University of Zurich, and De Groeve, Johannes
- Subjects
0106 biological sciences ,EUROPE ,Sequence analysis ,Geography, Planning and Development ,Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 [VDP] ,Library and Information Sciences ,1710 Information Systems ,010603 evolutionary biology ,01 natural sciences ,SPATIO-TEMPORAL HABITAT USE ,DENDROGRAM ,10127 Institute of Evolutionary Biology and Environmental Studies ,3305 Geography, Planning and Development ,Settore BIO/07 - ECOLOGIA ,ungulates ,Planning and Development ,UNGULATES ,Geography ,Movement (music) ,dendrogram ,010604 marine biology & hydrobiology ,MECHANISTIC MOVEMENT MODEL ,15. Life on land ,mechanistic movement model ,Sequence dissimilarity ,SEQUENCE DISSIMILARITY ,Habitat ,[SDE]Environmental Sciences ,570 Life sciences ,biology ,590 Animals (Zoology) ,3309 Library and Information Sciences ,spatio-temporal habitat use ,Cartography ,Information Systems - Abstract
We present methodological advances to a recently developed framework to study sequential habitat use by animals using a visually-explicit and tree-based Sequence Analysis Method (SAM), derived from molecular biology and more recently used in time geography. Habitat use sequences are expressed as annotations obtained by intersecting GPS movement trajectories with environmental layers. Here, we develop IM-SAM, where we use the individual reference area of use as the reference spatial context. To assess IM-SAM’s applicability, we investigated the sequential use of open and closed habitats across multiple European roe deer populations ranging in landscapes with contrasting structure. Starting from simulated sequences based on a mechanistic movement model, we found that different sequential patterns of habitat use were distinguished as separate, robust clusters, with less variable cluster size when habitats were present in equal proportions within the individual reference area of use. Application on real roe deer sequences showed that our approach effectively captured variation in spatio-temporal patterns of sequential habitat use, and provided evidence for important behavioral processes, such as day-night habitat alternation. By characterizing sequential habitat use patterns of animals, we may better evaluate the temporal trade-offs in animal habitat use and how they are affected by changes in landscapes. Sequence dissimilarity; dendrogram; ungulates; spatio-temporal habitat use; mechanistic movement model
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- 2020
8. Stay home, stay safe—Site familiarity reduces predation risk in a large herbivore in two contrasting study sites
- Author
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Gehr, Benedikt, primary, Bonnot, Nadège C., additional, Heurich, Marco, additional, Cagnacci, Francesca, additional, Ciuti, Simone, additional, Hewison, A. J. Mark, additional, Gaillard, Jean‐Michel, additional, Ranc, Nathan, additional, Premier, Joe, additional, Vogt, Kristina, additional, Hofer, Elizabeth, additional, Ryser, Andreas, additional, Vimercati, Eric, additional, and Keller, Lukas, additional
- Published
- 2020
- Full Text
- View/download PDF
9. Fear of the dark? Contrasting impacts of humans versus lynx on diel activity of roe deer across Europe
- Author
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Bonnot, Nadège C., primary, Couriot, Ophélie, additional, Berger, Anne, additional, Cagnacci, Francesca, additional, Ciuti, Simone, additional, De Groeve, Johannes E., additional, Gehr, Benedikt, additional, Heurich, Marco, additional, Kjellander, Petter, additional, Kröschel, Max, additional, Morellet, Nicolas, additional, Sönnichsen, Leif, additional, and Hewison, A. J. Mark, additional
- Published
- 2019
- Full Text
- View/download PDF
10. Individual Movement - Sequence Analysis Method (IM-SAM): characterizing spatio-temporal patterns of animal habitat use across landscapes
- Author
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De Groeve, Johannes, primary, Cagnacci, Francesca, additional, Ranc, Nathan, additional, Bonnot, Nadège C., additional, Gehr, Benedikt, additional, Heurich, Marco, additional, Hewison, A.J. Mark, additional, Kroeschel, Max, additional, Linnell, John D.C., additional, Morellet, Nicolas, additional, Mysterud, Atle, additional, Sandfort, Robin, additional, and Van De Weghe, Nico, additional
- Published
- 2019
- Full Text
- View/download PDF
11. Individual Movement - Sequence Analysis Method (IM-SAM): characterizing spatio-temporal patterns of animal habitat use across landscapes.
- Author
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De Groeve, Johannes, Cagnacci, Francesca, Ranc, Nathan, Bonnot, Nadège C., Gehr, Benedikt, Heurich, Marco, Hewison, A.J. Mark, Kroeschel, Max, Linnell, John D.C., Morellet, Nicolas, Mysterud, Atle, Sandfort, Robin, and Van De Weghe, Nico
- Subjects
HABITATS ,SEQUENCE analysis ,DEER populations ,ROE deer ,SPATIO-temporal variation - Abstract
We present methodological advances to a recently developed framework to study sequential habitat use by animals using a visually-explicit and tree-based Sequence Analysis Method (SAM), derived from molecular biology and more recently used in time geography. Habitat use sequences are expressed as annotations obtained by intersecting GPS movement trajectories with environmental layers. Here, we develop IM-SAM, where we use the individual reference area of use as the reference spatial context. To assess IM-SAM's applicability, we investigated the sequential use of open and closed habitats across multiple European roe deer populations ranging in landscapes with contrasting structure. Starting from simulated sequences based on a mechanistic movement model, we found that different sequential patterns of habitat use were distinguished as separate, robust clusters, with less variable cluster size when habitats were present in equal proportions within the individual reference area of use. Application on real roe deer sequences showed that our approach effectively captured variation in spatio-temporal patterns of sequential habitat use, and provided evidence for important behavioral processes, such as day-night habitat alternation. By characterizing sequential habitat use patterns of animals, we may better evaluate the temporal trade-offs in animal habitat use and how they are affected by changes in landscapes. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
12. Fear of the dark? Contrasting impacts of humans versus lynx on diel activity of roe deer across Europe.
- Author
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Bonnot, Nadège C., Couriot, Ophélie, Berger, Anne, Cagnacci, Francesca, Ciuti, Simone, De Groeve, Johannes E., Gehr, Benedikt, Heurich, Marco, Kjellander, Petter, Kröschel, Max, Morellet, Nicolas, Sönnichsen, Leif, Hewison, A. J. Mark, and Vander Wal, Eric
- Subjects
- *
ROE deer , *CARNIVOROUS animals , *PREDATORY animals , *LYNX , *DEER populations , *PREDATION , *SPATIO-temporal variation - Abstract
Humans, as super predators, can have strong effects on wildlife behaviour, including profound modifications of diel activity patterns. Subsequent to the return of large carnivores to human‐modified ecosystems, many prey species have adjusted their spatial behaviour to the contrasting landscapes of fear generated by both their natural predators and anthropogenic pressures. The effects of predation risk on temporal shifts in diel activity of prey, however, remain largely unexplored in human‐dominated landscapes.We investigated the influence of the density of lynx Lynx lynx, a nocturnal predator, on the diel activity patterns of their main prey, the roe deer Capreolus capreolus, across a gradient of human disturbance and hunting at the European scale.Based on 11 million activity records from 431 individually GPS‐monitored roe deer in 12 populations within the EURODEER network (http://eurodeer.org), we investigated how lynx predation risk in combination with both lethal and non‐lethal human activities affected the diurnality of deer.We demonstrated marked plasticity in roe deer diel activity patterns in response to spatio‐temporal variations in risk, mostly due to human activities. In particular, roe deer decreased their level of diurnality by a factor of 1.37 when the background level of general human disturbance was high. Hunting exacerbated this effect, as during the hunting season deer switched most of their activity to night‐time and, to a lesser extent, to dawn, although this pattern varied noticeably in relation to lynx density. Indeed, in the presence of lynx, their main natural predator, roe deer were relatively more diurnal. Overall, our results revealed a strong influence of human activities and the presence of lynx on diel shifts in roe deer activity.In the context of the recovery of large carnivores across Europe, we provide important insights about the effects of predators on the behavioural responses of their prey in human‐dominated ecosystems. Modifications in the temporal partitioning of ungulate activity as a response to human activities may facilitate human–wildlife coexistence, but likely also have knock‐on effects for predator–prey interactions, with cascading effects on ecosystem functioning. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
13. Stick or twist: roe deer adjust their flight behaviour to the perceived trade-off between risk and reward
- Author
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Bonnot, Nadège C., primary, Hewison, A.J. Mark, additional, Morellet, Nicolas, additional, Gaillard, Jean-Michel, additional, Debeffe, Lucie, additional, Couriot, Ophélie, additional, Cargnelutti, Bruno, additional, Chaval, Yannick, additional, Lourtet, Bruno, additional, Kjellander, Petter, additional, and Vanpé, Cécile, additional
- Published
- 2017
- Full Text
- View/download PDF
14. Sitka black-tailed deer (Odocoileus hemionus sitkensis) adjust habitat selection and activity rhythm to the absence of predators
- Author
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Bonnot, Nadège C., primary, Morellet, Nicolas, additional, Hewison, A.J. Mark, additional, Martin, Jean-Louis, additional, Benhamou, Simon, additional, and Chamaillé-Jammes, Simon, additional
- Published
- 2016
- Full Text
- View/download PDF
15. Fear of the dark? Contrasting impacts of humans versus lynx on diel activity of roe deer across Europe
- Author
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Nicolas Morellet, Leif Sönnichsen, Francesca Cagnacci, Ophélie Couriot, Benedikt Gehr, Johannes De Groeve, Max Kröschel, Nadège C. Bonnot, A. J. Mark Hewison, Anne Berger, Petter Kjellander, Marco Heurich, Simone Ciuti, University of Zurich, Vander Wal, Eric, Bonnot, Nadège C, Ecosystèmes forestiers (UR EFNO), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Grimsö Wildlife Research Station, Department of Ecology, Swedish University of Agricultural Sciences (SLU)-Swedish University of Agricultural Sciences (SLU), Unité de recherche Comportement et Ecologie de la Faune Sauvage (CEFS), Leibniz Institute for Zoo and Wildlife Research (IZW), Leibniz Association, Fondazione Edmund Mach [San Michele all'Adige], University College Dublin [Dublin] (UCD), Polish Academy of Sciences (PAN), Universität Zürich [Zürich] = University of Zurich (UZH), University of Freiburg [Freiburg], Bavarian Forest National Park, Forest Research Institute Baden-Württemberg - Forstliche Versuchs- und Forschungsanstalt Baden-Württemberg, ANR-16-CE02-0010-02, N N304172536, Mammal Research Institute - Polish Academy of Sciences, Leibniz-Institut fur Zoo-und Wildtierforschung, Marie Claire Cronstedts Stiftelse, Polish Mammal Research Institute - Polish Academy of Sciences, Leibniz-Institut für Zoo- und Wildtierforschung, Agence Nationale de la Recherche, Grant/Award Number: ANR-16-CE02-0010-02, Marie-Claire Cronstedts Stiftelse, Polish Ministry of Science and Higher Education, Grant/Award Number: N N304172536, and ANR-16-CE02-0010,Mov-It,Le mouvement des ongulés au sein de paysages hétérogènes: identification des processus comportementaux reliant les changements globaux aux performances démographiques et à la gestion spatialement explicite(2016)
- Subjects
0106 biological sciences ,REPARTITION TEMPORELLE DE L'ACTIVITE ,NOCTURNALITY ,01 natural sciences ,Predation ,ACCELEROMETRES ,DIURNALITE ,biology ,Ecology ,INTERACTION PREDATEURS PROIES ,CREPUSCULARITY ,URBANIZATION ,Fear ,HUMAN FOOTPRINT ,Predator– prey interaction ,Roe deer ,Europe ,TEMPORAL PARTITIONING ,[SDE]Environmental Sciences ,Lynx ,590 Animals (Zoology) ,NOCTURNALITE ,PAYSAGE DE LA PEUR ,Ungulate ,Evolution ,LANDSCAPE OF FEAR ,Context (language use) ,PREDATOR-PREY INTERACTION ,010603 evolutionary biology ,Hunting season ,10127 Institute of Evolutionary Biology and Environmental Studies ,Capreolus ,EMPREINTE HUMAINE ,Behavior and Systematics ,Settore BIO/07 - ECOLOGIA ,biology.animal ,Hunting ,Animals ,Humans ,ACCELEROMETERS ,Diurnality ,CREPUSCULARITE ,Diel vertical migration ,Ecology, Evolution, Behavior and Systematics ,Ecosystem ,010604 marine biology & hydrobiology ,Deer ,15. Life on land ,biology.organism_classification ,1105 Ecology, Evolution, Behavior and Systematics ,DIURNALITY ,Predatory Behavior ,570 Life sciences ,Animal Science and Zoology ,1103 Animal Science and Zoology ,URBANISATION - Abstract
Humans, as super predators, can have strong effects on wildlife behaviour, including profound modifications of diel activity patterns. Subsequent to the return of large carnivores to human-modified ecosystems, many prey species have adjusted their spatial behaviour to the contrasting landscapes of fear generated by both their natural predators and anthropogenic pressures. The effects of predation risk on temporal shifts in diel activity of prey, however, remain largely unexplored in human-dominated landscapes. We investigated the influence of the density of lynx Lynx lynx, a nocturnal predator, on the diel activity patterns of their main prey, the roe deer Capreolus capreolus, across a gradient of human disturbance and hunting at the European scale. Based on 11 million activity records from 431 individually GPS-monitored roe deer in 12 populations within the EURODEER network (http://eurodeer.org), we investigated how lynx predation risk in combination with both lethal and non-lethal human activities affected the diurnality of deer. We demonstrated marked plasticity in roe deer diel activity patterns in response to spatio-temporal variations in risk, mostly due to human activities. In particular, roe deer decreased their level of diurnality by a factor of 1.37 when the background level of general human disturbance was high. Hunting exacerbated this effect, as during the hunting season deer switched most of their activity to night-time and, to a lesser extent, to dawn, although this pattern varied noticeably in relation to lynx density. Indeed, in the presence of lynx, their main natural predator, roe deer were relatively more diurnal. Overall, our results revealed a strong influence of human activities and the presence of lynx on diel shifts in roe deer activity. In the context of the recovery of large carnivores across Europe, we provide important insights about the effects of predators on the behavioural responses of their prey in human-dominated ecosystems. Modifications in the temporal partitioning of ungulate activity as a response to human activities may facilitate human-wildlife coexistence, but likely also have knock-on effects for predator-prey interactions, with cascading effects on ecosystem functioning.Résumé Les humains, en tant que ‘super-prédateurs’, peuvent avoir des effets importants sur le comportement de la faune sauvage, y compris des modifications profondes de leurs rythmes circadiens d'activité. A la suite du retour des grands carnivores dans les écosystèmes anthropisés, de nombreuses espèces proies ont ajusté leur comportement spatial à ces paysages de la peur contrastés, générés à la fois par les pressions liées aux risques anthropiques et à la présence de leurs prédateurs naturels. Les effets du risque de prédation sur les modifications temporelles des rythmes circadiens d'activité des proies restent cependant largement inconnus dans les écosystèmes dominés par l'homme. Ici, nous avons étudié l'influence de la densité de lynx Lynx lynx, un prédateur nocturne, sur les rythmes circadiens d'activité de leur proie principale, le chevreuil Capreolus capreolus, à travers un gradient de pressions anthropiques à l’échelle Européenne. Sur la base de plus de 11 million de données d'activité issues de 431 suivis individuels de chevreuils équipés de colliers GPS provenant de 12 populations au sein du réseau EURODEER (http://eurodeer.org), nous avons analysé comment le risque de prédation par le lynx, associé aux risques létaux et non-létaux des activités humaines, influence la diurnalité des chevreuils. Nous avons démontré une forte plasticité des rythmes circadiens d'activité des chevreuils en réponse aux variations spatio-temporelles du risque, et notamment face aux activités humaines. Plus particulièrement, les chevreuils diminuent leur degré de diurnalité d'un facteur de 1.37 lorsque le dérangement humain est important. La chasse accentue cet effet, puisque durant la saison de chasse les chevreuils basculent la plupart de leur activité de nuit, et dans une moindre mesure, durant l'aube également, bien que ce patron soit essentiellement variable en fonction de la densité de lynx. En effet, en présence de lynx, leur principal prédateur, les chevreuils sont relativement plus diurnes. Globalement, nos résultats révèlent une forte influence des activités humaines et de la présence de lynx sur l'ajustement des rythmes circadiens d'activité des chevreuils. Dans le contexte du retour des grands carnivores en Europe, notre étude apporte de nouvelles connaissances sur les effets des prédateurs sur la réponse comportementale de leur proie dans des écosystèmes anthropisés. La modification de la répartition temporelle de l'activité des ongulés en réponse aux activités humaines pourrait être un facteur facilitant la coexistence homme-faune sauvage, avec toutefois des conséquences autres sur les interactions prédateurs-proies et leurs effets en cascade sur le fonctionnement des écosystèmes.
- Published
- 2019
16. Reproductive tactics, birth timing and the risk-resource trade-off in an income breeder.
- Author
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Benoit L, Morellet N, Bonnot NC, Cargnelutti B, Chaval Y, Gaillard JM, Loison A, Lourtet B, Marchand P, Coulon A, and Hewison AJM
- Subjects
- Humans, Female, Animals, Reproduction, Ecosystem, Predatory Behavior, Deer
- Abstract
In variable environments, habitats that are rich in resources often carry a higher risk of predation. As a result, natural selection should favour individuals that balance allocation of time to foraging versus avoiding predation through an optimal decision-making process that maximizes fitness. The behavioural trade-off between resource acquisition and risk avoidance is expected to be particularly acute during gestation and lactation, when the energetic demands of reproduction peak. Here, we investigated how reproductive female roe deer adjust their foraging activity and habitat use during the birth period to manage this trade-off compared with non-reproductive juveniles, and how parturition date constrains individual tactics of risk-resource management. Activity of reproductive females more than doubled immediately following parturition, when energy demand is highest. Furthermore, compared with non-reproductive juveniles, they increased their exposure to risk by using open habitat more during daytime and ranging closer to roads. However, these post-partum modifications in behaviour were particularly pronounced in late-parturient females who adopted a more risk-prone tactic, presumably to compensate for the growth handicap of their late-born offspring. In income breeders, individuals that give birth late may be constrained to trade risk avoidance for foraging during peak allocation to reproduction, with probable consequences for individual fitness.
- Published
- 2023
- Full Text
- View/download PDF
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