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  1. Artikel: Climate matching and anthropogenic factors contribute to the colonization and extinction of local populations during avian invasions

    Cardador, Laura / Tella, José L. / Louvrier, Julie / Anadón, José D. / Abellán, Pedro / Carrete, Martina

    Diversity & distributions. 2022 Sept., v. 28, no. 9

    2022  

    Abstract: AIM: Concern about the impacts of biological invasions has generated a great deal of interest in understanding factors that determine invasion success. Most of our current knowledge comes from static approaches that use spatial patterns as a proxy of ... ...

    Abstract AIM: Concern about the impacts of biological invasions has generated a great deal of interest in understanding factors that determine invasion success. Most of our current knowledge comes from static approaches that use spatial patterns as a proxy of temporal processes. These approaches assume that species are present in areas where environmental conditions are the most favourable. However, this assumption is problematic when applied to dynamic processes such as species expansions when equilibrium has not been reached. LOCATION: Iberian Peninsula. TAXON: Birds. METHODS: In our work, we analyse the roles played by human activities, climatic matching and spatial connectivity on the two main underlying processes shaping the spread of invasive species (i.e. colonization and extinction) using a dynamic modelling approach. We use a large data set that has recorded the occurrence of two invasive bird species—the ring‐necked (Psittacula krameri) and the monk (Myiopsitta monachus) parakeets—in the Iberian Peninsula from 1991 to 2016. RESULTS: Human activities and climate matching play a role on species range dynamics. Human influence and urbanization were the most relevant factors explaining colonization. Additionally, an effect of climate matching was found. Persistence (the inverse of extinction) was mainly affected by human influence for the monk parakeet and by the extent of urban environments for the ring‐necked parakeet. MAIN CONCLUSIONS: Human activities play a major role not only on colonization of new locations, but also on persistence during range expansion. Additionally, natural processes—notably climate matching—also affect new colonizations. These findings add to our understanding of the mechanisms that might allow alien species to expand their geographic range at new locations and might help to improve our capacity to assess invasion risks and impacts accurately.
    Schlagwörter Myiopsitta monachus ; Psittacula krameri ; climate ; colonizing ability ; data collection ; extinction ; geographical distribution ; humans ; introduced species ; invasive species ; parakeets ; urbanization ; Iberian Peninsula
    Sprache Englisch
    Erscheinungsverlauf 2022-09
    Umfang p. 1908-1921.
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel
    Anmerkung JOURNAL ARTICLE
    ZDB-ID 2020139-4
    ISSN 1472-4642 ; 1366-9516
    ISSN (online) 1472-4642
    ISSN 1366-9516
    DOI 10.1111/ddi.13591
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  2. Artikel: Accounting for misidentification and heterogeneity in occupancy studies using hidden Markov models

    Louvrier, Julie / Thierry Chambert / Eric Marboutin / Olivier Gimenez

    Ecological modelling. 2018 Nov. 10, v. 387

    2018  

    Abstract: Occupancy models allow assessing species occurrence while accounting for imperfect detection. As with any statistical models, occupancy models rely on several assumptions amongst which (i) there should be no unmodelled heterogeneity in the detection ... ...

    Abstract Occupancy models allow assessing species occurrence while accounting for imperfect detection. As with any statistical models, occupancy models rely on several assumptions amongst which (i) there should be no unmodelled heterogeneity in the detection probability and (ii) the species should not be detected when absent from a site, in other words there should be no false positives (e.g., due to misidentification). In the real world, these two assumptions are often violated. To date, models accounting simultaneously for both detection heterogeneity and false positives are yet to be developed. Here, we first show how occupancy models with false positives can be formulated as hidden Markov models (HMM). Second, benefiting from the HMM framework flexibility, we extend models with false positives to account for heterogeneity with finite mixtures. First, using simulations, we demonstrate that, as the level of heterogeneity increases, occupancy models accounting for both heterogeneity and misidentification perform better in terms of bias and precision than models accounting for misidentification only. Next, we illustrate the implementation of our new model to a real case study with grey wolves (Canis lupus) in France. We demonstrate that heterogeneity in wolf detection (false negatives) is mainly due to a heterogeneous sampling effort across space. In addition to providing a novel modeling formulation, this work illustrates the flexibility of HMM framework to formulate complex ecological models and relax important assumptions that are not always likely to hold. In particular, we show how to decompose the model structure in several simple components, in a way that provides much clearer ecological interpretation.
    Schlagwörter Canis lupus ; Markov chain ; case studies ; statistical models ; wolves ; France
    Sprache Englisch
    Erscheinungsverlauf 2018-1110
    Umfang p. 61-69.
    Erscheinungsort Elsevier B.V.
    Dokumenttyp Artikel
    ZDB-ID 191971-4
    ISSN 0304-3800
    ISSN 0304-3800
    DOI 10.1016/j.ecolmodel.2018.09.002
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  3. Buch ; Online: Climate matching and anthropogenic factors contribute to the colonization and extinction of local populations during avian invasions

    Cardador, Laura / Tella, José / Louvrier, Julie / Anadon, Jose Daniel / Abellan, Pedro / Carrete, Martina

    http://lobid.org/resources/99370697946406441#!, 28(9):1908-1921

    2022  

    Abstract: AIM: Concern about the impacts of biological invasions has generated a great deal of interest in understanding factors that determine invasion success. Most of our current knowledge comes from static approaches that use spatial patterns as a proxy of ... ...

    Abstract AIM: Concern about the impacts of biological invasions has generated a great deal of interest in understanding factors that determine invasion success. Most of our current knowledge comes from static approaches that use spatial patterns as a proxy of temporal processes. These approaches assume that species are present in areas where environmental conditions are the most favourable. However, this assumption is problematic when applied to dynamic processes such as species expansions when equilibrium has not been reached. LOCATION: Iberian Peninsula. TAXON: Birds. METHODS: In our work, we analyse the roles played by human activities, climatic matching and spatial connectivity on the two main underlying processes shaping the spread of invasive species (i.e. colonization and extinction) using a dynamic modelling approach. We use a large data set that has recorded the occurrence of two invasive bird species—the ringâ€necked (Psittacula krameri) and the monk (Myiopsitta monachus) parakeets—in the Iberian Peninsula from 1991 to 2016. RESULTS: Human activities and climate matching play a role on species range dynamics. Human influence and urbanization were the most relevant factors explaining colonization. Additionally, an effect of climate matching was found. Persistence (the inverse of extinction) was mainly affected by human influence for the monk parakeet and by the extent of urban environments for the ringâ€necked parakeet. MAIN CONCLUSIONS: Human activities play a major role not only on colonization of new locations, but also on persistence during range expansion. Additionally, natural processes—notably climate matching—also affect new colonizations. These findings add to our understanding of the mechanisms that might allow alien species to expand their geographic range at new locations and might help to improve our capacity to assess invasion risks and impacts accurately.
    Schlagwörter environmental-matching ; birds ; human alterations ; Ecology ; Evolution ; Behavior and Systematics ; dispersal ; spread ; biological invasions ; occupancy models
    Thema/Rubrik (Code) 333
    Sprache Englisch
    Erscheinungsland de
    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Buch ; Online: Climate matching and anthropogenic factors contribute to the colonization and extinction of local populations during avian invasions

    Cardador, Laura / Tella, José / Louvrier, Julie / Anadon, Jose Daniel / Abellan, Pedro / Carrete, Martina

    http://lobid.org/resources/99370697946406441#!, 28(9):1908-1921

    2022  

    Abstract: AIM: Concern about the impacts of biological invasions has generated a great deal of interest in understanding factors that determine invasion success. Most of our current knowledge comes from static approaches that use spatial patterns as a proxy of ... ...

    Abstract AIM: Concern about the impacts of biological invasions has generated a great deal of interest in understanding factors that determine invasion success. Most of our current knowledge comes from static approaches that use spatial patterns as a proxy of temporal processes. These approaches assume that species are present in areas where environmental conditions are the most favourable. However, this assumption is problematic when applied to dynamic processes such as species expansions when equilibrium has not been reached. LOCATION: Iberian Peninsula. TAXON: Birds. METHODS: In our work, we analyse the roles played by human activities, climatic matching and spatial connectivity on the two main underlying processes shaping the spread of invasive species (i.e. colonization and extinction) using a dynamic modelling approach. We use a large data set that has recorded the occurrence of two invasive bird species—the ringâ€necked (Psittacula krameri) and the monk (Myiopsitta monachus) parakeets—in the Iberian Peninsula from 1991 to 2016. RESULTS: Human activities and climate matching play a role on species range dynamics. Human influence and urbanization were the most relevant factors explaining colonization. Additionally, an effect of climate matching was found. Persistence (the inverse of extinction) was mainly affected by human influence for the monk parakeet and by the extent of urban environments for the ringâ€necked parakeet. MAIN CONCLUSIONS: Human activities play a major role not only on colonization of new locations, but also on persistence during range expansion. Additionally, natural processes—notably climate matching—also affect new colonizations. These findings add to our understanding of the mechanisms that might allow alien species to expand their geographic range at new locations and might help to improve our capacity to assess invasion risks and impacts accurately.
    Schlagwörter environmental-matching ; birds ; human alterations ; Ecology ; Evolution ; Behavior and Systematics ; dispersal ; spread ; biological invasions ; occupancy models
    Thema/Rubrik (Code) 333
    Sprache Englisch
    Erscheinungsland de
    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  5. Buch ; Online: Climate matching and anthropogenic factors contribute to the colonization and extinction of local populations during avian invasions

    Cardador, Laura / Tella, José / Louvrier, Julie / Anadon, Jose Daniel / Abellan, Pedro / Carrete, Martina

    http://lobid.org/resources/99370697946406441#!, 28(9):1908-1921

    2022  

    Abstract: AIM: Concern about the impacts of biological invasions has generated a great deal of interest in understanding factors that determine invasion success. Most of our current knowledge comes from static approaches that use spatial patterns as a proxy of ... ...

    Abstract AIM: Concern about the impacts of biological invasions has generated a great deal of interest in understanding factors that determine invasion success. Most of our current knowledge comes from static approaches that use spatial patterns as a proxy of temporal processes. These approaches assume that species are present in areas where environmental conditions are the most favourable. However, this assumption is problematic when applied to dynamic processes such as species expansions when equilibrium has not been reached. LOCATION: Iberian Peninsula. TAXON: Birds. METHODS: In our work, we analyse the roles played by human activities, climatic matching and spatial connectivity on the two main underlying processes shaping the spread of invasive species (i.e. colonization and extinction) using a dynamic modelling approach. We use a large data set that has recorded the occurrence of two invasive bird species—the ringâ€necked (Psittacula krameri) and the monk (Myiopsitta monachus) parakeets—in the Iberian Peninsula from 1991 to 2016. RESULTS: Human activities and climate matching play a role on species range dynamics. Human influence and urbanization were the most relevant factors explaining colonization. Additionally, an effect of climate matching was found. Persistence (the inverse of extinction) was mainly affected by human influence for the monk parakeet and by the extent of urban environments for the ringâ€necked parakeet. MAIN CONCLUSIONS: Human activities play a major role not only on colonization of new locations, but also on persistence during range expansion. Additionally, natural processes—notably climate matching—also affect new colonizations. These findings add to our understanding of the mechanisms that might allow alien species to expand their geographic range at new locations and might help to improve our capacity to assess invasion risks and impacts accurately.
    Schlagwörter environmental-matching ; birds ; human alterations ; Ecology ; Evolution ; Behavior and Systematics ; dispersal ; spread ; biological invasions ; occupancy models
    Thema/Rubrik (Code) 333
    Sprache Englisch
    Erscheinungsland de
    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  6. Buch ; Online: Climate matching and anthropogenic factors contribute to the colonization and extinction of local populations during avian invasions

    Cardador, Laura / Tella, José / Louvrier, Julie / Anadon, Jose Daniel / Abellan, Pedro / Carrete, Martina

    http://lobid.org/resources/99370697946406441#!, 28(9):1908-1921

    2022  

    Abstract: AIM: Concern about the impacts of biological invasions has generated a great deal of interest in understanding factors that determine invasion success. Most of our current knowledge comes from static approaches that use spatial patterns as a proxy of ... ...

    Abstract AIM: Concern about the impacts of biological invasions has generated a great deal of interest in understanding factors that determine invasion success. Most of our current knowledge comes from static approaches that use spatial patterns as a proxy of temporal processes. These approaches assume that species are present in areas where environmental conditions are the most favourable. However, this assumption is problematic when applied to dynamic processes such as species expansions when equilibrium has not been reached. LOCATION: Iberian Peninsula. TAXON: Birds. METHODS: In our work, we analyse the roles played by human activities, climatic matching and spatial connectivity on the two main underlying processes shaping the spread of invasive species (i.e. colonization and extinction) using a dynamic modelling approach. We use a large data set that has recorded the occurrence of two invasive bird species—the ringâ€necked (Psittacula krameri) and the monk (Myiopsitta monachus) parakeets—in the Iberian Peninsula from 1991 to 2016. RESULTS: Human activities and climate matching play a role on species range dynamics. Human influence and urbanization were the most relevant factors explaining colonization. Additionally, an effect of climate matching was found. Persistence (the inverse of extinction) was mainly affected by human influence for the monk parakeet and by the extent of urban environments for the ringâ€necked parakeet. MAIN CONCLUSIONS: Human activities play a major role not only on colonization of new locations, but also on persistence during range expansion. Additionally, natural processes—notably climate matching—also affect new colonizations. These findings add to our understanding of the mechanisms that might allow alien species to expand their geographic range at new locations and might help to improve our capacity to assess invasion risks and impacts accurately.
    Schlagwörter environmental-matching ; birds ; human alterations ; Ecology ; Evolution ; Behavior and Systematics ; dispersal ; spread ; biological invasions ; occupancy models
    Thema/Rubrik (Code) 333
    Sprache Englisch
    Erscheinungsland de
    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  7. Buch ; Online: Climate matching and anthropogenic factors contribute to the colonization and extinction of local populations during avian invasions

    Cardador, Laura / Tella, José / Louvrier, Julie / Anadon, Jose Daniel / Abellan, Pedro / Carrete, Martina

    http://lobid.org/resources/99370697946406441#!, 28(9):1908-1921

    2022  

    Abstract: AIM: Concern about the impacts of biological invasions has generated a great deal of interest in understanding factors that determine invasion success. Most of our current knowledge comes from static approaches that use spatial patterns as a proxy of ... ...

    Abstract AIM: Concern about the impacts of biological invasions has generated a great deal of interest in understanding factors that determine invasion success. Most of our current knowledge comes from static approaches that use spatial patterns as a proxy of temporal processes. These approaches assume that species are present in areas where environmental conditions are the most favourable. However, this assumption is problematic when applied to dynamic processes such as species expansions when equilibrium has not been reached. LOCATION: Iberian Peninsula. TAXON: Birds. METHODS: In our work, we analyse the roles played by human activities, climatic matching and spatial connectivity on the two main underlying processes shaping the spread of invasive species (i.e. colonization and extinction) using a dynamic modelling approach. We use a large data set that has recorded the occurrence of two invasive bird species—the ringâ€necked (Psittacula krameri) and the monk (Myiopsitta monachus) parakeets—in the Iberian Peninsula from 1991 to 2016. RESULTS: Human activities and climate matching play a role on species range dynamics. Human influence and urbanization were the most relevant factors explaining colonization. Additionally, an effect of climate matching was found. Persistence (the inverse of extinction) was mainly affected by human influence for the monk parakeet and by the extent of urban environments for the ringâ€necked parakeet. MAIN CONCLUSIONS: Human activities play a major role not only on colonization of new locations, but also on persistence during range expansion. Additionally, natural processes—notably climate matching—also affect new colonizations. These findings add to our understanding of the mechanisms that might allow alien species to expand their geographic range at new locations and might help to improve our capacity to assess invasion risks and impacts accurately.
    Schlagwörter environmental-matching ; birds ; human alterations ; Ecology ; Evolution ; Behavior and Systematics ; dispersal ; spread ; biological invasions ; occupancy models
    Thema/Rubrik (Code) 333
    Sprache Englisch
    Erscheinungsland de
    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  8. Artikel: Spatiotemporal interactions of a novel mesocarnivore community in an urban environment before and during SARS‐CoV‐2 lockdown

    Louvrier, Julie L. P. / Planillo, Aimara / Stillfried, Milena / Hagen, Robert / Börner, Konstantin / Kimmig, Sophia / Ortmann, Sylvia / Schumann, Anke / Brandt, Miriam / Kramer‐Schadt, Stephanie

    journal of animal ecology. 2022 Feb., v. 91, no. 2

    2022  

    Abstract: Studying species interactions and niche segregation under human pressure provides important insights into species adaptation, community functioning and ecosystem stability. Due to their high plasticity in behaviour and diet, urban mesocarnivores are ... ...

    Abstract Studying species interactions and niche segregation under human pressure provides important insights into species adaptation, community functioning and ecosystem stability. Due to their high plasticity in behaviour and diet, urban mesocarnivores are ideal species for studying community assembly in novel communities. We analysed the spatial and temporal species interactions of an urban mesocarnivore community composed of the red fox Vulpes vulpes and the marten Martes sp. as native species, the raccoon Procyon lotor as invasive species, and the cat Felis catus as a domestic species in combination with human disturbance modulated by the SARS‐CoV‐2 lockdown effect that happened while the study was conducted. We analysed camera trap data and applied a joint species distribution model to understand not only the environmental variables influencing the detection of mesocarnivores and their use intensity of environmental features but also the species’ co‐occurrences while accounting for environmental variables. We then assessed whether they displayed temporal niche partitioning based on activity analyses, and finally analysed at a smaller temporal scale the time of delay after the detection of another focal species. We found that species were more often detected and displayed a higher use intensity in gardens during the SARS‐CoV‐2 lockdown period, while showing a shorter temporal delay during the same period, meaning a high human‐induced spatiotemporal overlap. All three wild species spatially co‐occurred within the urban area, with a positive response of raccoons to cats in detection and use intensity, whereas foxes showed a negative trend towards cats. When assessing the temporal partitioning, we found that all wild species showed overlapping nocturnal activities. All species displayed temporal segregation based on temporal delay. According to the temporal delay analyses, cats were the species avoided the most by all wild species. To conclude, we found that although the wild species were positively associated in space, the avoidance occurred at a smaller temporal scale, and human pressure in addition led to high spatiotemporal overlap. Our study sheds light to the complex patterns underlying the interactions in a mesocarnivore community both spatially and temporally, and the exacerbated effect of human pressure on community dynamics.
    Schlagwörter Martes ; Procyon lotor ; Severe acute respiratory syndrome coronavirus 2 ; Vulpes vulpes ; animal ecology ; anthropogenic activities ; cameras ; carnivores ; cats ; diet ; ecological balance ; ecological differentiation ; geographical distribution ; humans ; indigenous species ; invasive species ; models ; plasticity ; temporal variation ; urban areas
    Sprache Englisch
    Erscheinungsverlauf 2022-02
    Umfang p. 367-380.
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel
    Anmerkung JOURNAL ARTICLE
    ZDB-ID 3024-7
    ISSN 1365-2656 ; 0021-8790
    ISSN (online) 1365-2656
    ISSN 0021-8790
    DOI 10.1111/1365-2656.13635
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  9. Buch ; Online: A mechanistic-statistical species distribution model to explain and forecast wolf (Canis lupus) colonization in South-Eastern France

    Louvrier, Julie / Papaïx, Julien / Duchamp, Christophe / Gimenez, Olivier

    2019  

    Abstract: Species distribution models (SDMs) are important statistical tools for ecologists to understand and predict species range. However, standard SDMs do not explicitly incorporate dynamic processes like dispersal. This limitation may lead to bias in ... ...

    Abstract Species distribution models (SDMs) are important statistical tools for ecologists to understand and predict species range. However, standard SDMs do not explicitly incorporate dynamic processes like dispersal. This limitation may lead to bias in inference about species distribution. Here, we adopt the theory of ecological diffusion that has recently been introduced in statistical ecology to incorporate spatio-temporal processes in ecological models. As a case study, we considered the wolf (Canis lupus) that has been recolonizing Eastern France naturally through dispersal from the Apennines since the early 90's. Using partial differential equations for modelling species diffusion and growth in a fragmented landscape, we develop a mechanistic-statistical spatio-temporal model accounting for ecological diffusion, logistic growth and imperfect species detection. We conduct a simulation study and show the ability of our model to i) estimate ecological parameters in various situations with contrasted species detection probability and number of surveyed sites and ii) forecast the distribution into the future. We found that the growth rate of the wolf population in France was explained by the proportion of forest cover, that diffusion was influenced by human density and that species detectability increased with increasing survey effort. Using the parameters estimated from the 2007-2015 period, we then forecasted wolf distribution in 2016 and found good agreement with the actual detections made that year. Our approach may be useful for managing species that interact with human activities to anticipate potential conflicts.
    Schlagwörter Quantitative Biology - Populations and Evolution ; Quantitative Biology - Quantitative Methods ; Statistics - Applications
    Thema/Rubrik (Code) 590
    Erscheinungsdatum 2019-12-20
    Erscheinungsland us
    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  10. Artikel ; Forschungsdaten: (mit Forschungsdaten) Mapping and explaining wolf recolonization in France using dynamic occupancy models and opportunistic data

    Louvrier, Julie / Christian Miquel / Christophe Duchamp / Eric Marboutin / Olivier Gimenez / Rémi Choquet / Sarah Cubaynes / Valentin Lauret

    Ecography. 2018 Apr., v. 41, no. 4

    2018  

    Abstract: While large carnivores are recovering in Europe, assessing their distributions can help to predict and mitigate conflicts with human activities. Because they are highly mobile, elusive and live at very low density, modeling their distributions presents ... ...

    Abstract While large carnivores are recovering in Europe, assessing their distributions can help to predict and mitigate conflicts with human activities. Because they are highly mobile, elusive and live at very low density, modeling their distributions presents several challenges due to 1) their imperfect detectability, 2) their dynamic ranges over time and 3) their monitoring at large scales consisting mainly of opportunistic data without a formal measure of the sampling effort. Here, we focused on wolves Canis lupus that have been recolonizing France since the early 1990s. We evaluated the sampling effort a posteriori as the number of observers present per year in a cell based on their location and professional activities. We then assessed wolf range dynamics from 1994 to 2016, while accounting for species imperfect detection and time‐ and space‐varying sampling effort using dynamic site‐occupancy models. Ignoring the effect of sampling effort on species detectability led to underestimating the number of occupied sites by more than 50% on average. Colonization appeared to be negatively influenced by the proportion of a site with an altitude higher than 2500 m and positively influenced by the number of observed occupied sites at short and long‐distances, forest cover, farmland cover and mean altitude. The expansion rate, defined as the number of occupied sites in a given year divided by the number of occupied sites in the previous year, decreased over the first years of the study, then remained stable from 2000 to 2016. Our work shows that opportunistic data can be analyzed with species distribution models that control for imperfect detection, pending a quantification of sampling effort. Our approach has the potential for being used by decision‐makers to target sites where large carnivores are likely to occur and mitigate conflicts.
    Schlagwörter agricultural land ; altitude ; biogeography ; Canis lupus ; carnivores ; decision making ; forests ; humans ; models ; monitoring ; wolves ; France
    Sprache Englisch
    Erscheinungsverlauf 2018-04
    Umfang p. 647-660.
    Erscheinungsort Blackwell Publishing Ltd
    Dokumenttyp Artikel ; Forschungsdaten
    Anmerkung JOURNAL ARTICLE
    ZDB-ID 1112659-0
    ISSN 0906-7590 ; 0906-7590
    ISSN 0906-7590
    DOI 10.1111/ecog.02874
    Datenquelle NAL Katalog (AGRICOLA)

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