Victor Cazalis

ORCID: 0000-0003-0850-883X
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About
Contact & Profiles
Research Areas
  • Species Distribution and Climate Change
  • Wildlife Ecology and Conservation
  • Ecology and Vegetation Dynamics Studies
  • Economic and Environmental Valuation
  • Conservation, Biodiversity, and Resource Management
  • Environmental Conservation and Management
  • Amphibian and Reptile Biology
  • Land Use and Ecosystem Services
  • Rangeland and Wildlife Management
  • Urban Green Space and Health
  • Environmental Education and Sustainability
  • Environmental DNA in Biodiversity Studies
  • Environmental and Biological Research in Conflict Zones
  • Plant and animal studies
  • Animal and Plant Science Education
  • Animal Vocal Communication and Behavior
  • Fire effects on ecosystems
  • Fish Ecology and Management Studies
  • Insect and Arachnid Ecology and Behavior
  • Marine animal studies overview
  • Forest Management and Policy
  • Coastal and Marine Management

Leipzig University
2021-2025

German Centre for Integrative Biodiversity Research
2021-2025

University of Milan
2025

École Pratique des Hautes Études
2018-2022

Université de Montpellier
2020-2022

Centre d'Écologie Fonctionnelle et Évolutive
2018-2022

Centre National de la Recherche Scientifique
2018-2022

Institut de Recherche pour le Développement
2019-2022

Université Paul-Valéry Montpellier
2020

Station d’Écologie Théorique et Expérimentale
2018

Protected areas (PAs) are the most important conservation tool, yet assessing their effectiveness is remarkably challenging. We clarify links between many facets of PA effectiveness, from evaluating means, to analysing mechanisms, directly measuring biodiversity outcomes.

10.1038/s41467-020-18989-2 article EN cc-by Nature Communications 2020-10-13

Abstract Protected areas (PAs) are the cornerstones of global biodiversity conservation efforts, but to fulfil this role they must be effective at conserving ecosystems and species that occur within their boundaries. Adequate monitoring datasets allow comparing between protected unprotected sites lacking in tropical regions. Here we use largest citizen science dataset – eBird quantify extent which eight forest hotspots retaining bird diversity. We find generally positive effects protection...

10.1038/s41467-020-18230-0 article EN cc-by Nature Communications 2020-09-14

Abstract Electronic tracking technologies revolutionized wildlife ecology, notably for studying the movements of elusive species such as seabirds. Those advances are key to seabird conservation, example in guiding design marine protected areas this highly threatened group. Tracking data also boosting scientific understanding ecosystem dynamics context global change. To optimize future efforts, we performed a assessment data. We identified and mined 689 studies, reporting on > 28,000...

10.1111/conl.12804 article EN cc-by Conservation Letters 2021-05-01

Abstract Despite being central to the implementation of conservation policies, usefulness International Union for Conservation Nature (IUCN) Red List Threatened Species is hampered by 14% species classified as data‐deficient (DD) because information evaluate these species’ extinction risk was lacking when they were last assessed or assessors did not appropriately account uncertainty. Robust methods are needed identify which DD more likely be reclassified in one data‐sufficient IUCN...

10.1111/cobi.14139 article EN cc-by-nc-nd Conservation Biology 2023-07-03

Abstract Comparative extinction risk analysis—which predicts species from correlation with traits or geographical characteristics—has gained research attention as a promising tool to support assessment in the IUCN Red List of Threatened Species. However, its uptake has been very limited so far, possibly because existing models only predict species' category, without indicating which criteria may be triggered. This prevents such approaches integrated into assessments. We overcome this...

10.1111/gcb.17119 article EN cc-by-nc Global Change Biology 2024-01-01

Abstract Assessing the extinction risk of species based on International Union for Conservation Nature (IUCN) Red List (RL) is key to guiding conservation policies and reducing biodiversity loss. This process resource demanding, however, requires continuous updating, which becomes increasingly difficult as new are added RL. Automatic methods, such comparative analyses used predict RL category, can be an efficient alternative keep assessments up date. Using amphibians a study group, we...

10.1111/cobi.14316 article EN cc-by-nc-nd Conservation Biology 2024-07-01

Abstract The International Union for Conservation of Nature (IUCN) Red List is a central tool extinction risk monitoring and influences global biodiversity policy action. But, to be effective, it crucial that consistently accounts each driver extinction. Climate change rapidly becoming key driver, but consideration climate information remains challenging the IUCN. Several methods can used predict species’ future decline, they often fail provide estimates symptoms endangerment by We devised...

10.1111/cobi.14227 article EN cc-by Conservation Biology 2023-12-19

Variation in life histories influences demographic processes, from adaptive changes to population declines leading extinction. Among history traits, generation length offers a critical feature forecast species' trajectories such as (widely used by the IUCN Red List) and adaptability environmental change over time. Therefore, estimates of are crucial monitor stability or predict future highly threatened organisms, particularly amphibians reptiles, which among vertebrates for uncertainty...

10.1111/ecog.07527 article EN cc-by Ecography 2025-03-19

Human activities’ negative impact on biodiversity is undisputed, but debate remains vivid their effect species richness, a key index in ecology and conservation. While some studies suggest that richness declines with human pressure, others show it can be insensitive or even respond positively to because (“losers”) are replaced by (“winners”). However, many winners favored intermediate pressure decline when becomes too high, we thus expect above certain pressure. Analyzing eBird data tropical...

10.1073/pnas.2107361119 article EN cc-by-nc-nd Proceedings of the National Academy of Sciences 2022-05-02

Humanity will soon define a new era for nature – one that seeks to correct decades of underwhelming responses the global biodiversity crisis. Area-based conservation efforts, which include both protected areas and other effective area-based measures, are likely extend diversify. But persistent shortfalls in ecological representation, management effectiveness measurable outcomes diminish potential role stemming loss. Here we show how area expansion by governments since 2010 has had...

10.20944/preprints202001.0104.v1 preprint EN 2020-01-11

Abstract Protected areas are highly heterogeneous in their effectiveness at buffering human pressure, which may hamper ability to conserve species sensitive activities. Here, we use 60 million bird observations from eBird estimate the sensitivity pressure of each breeding Americas. Concerningly, find that ecoregions hosting large proportions high‐sensitivity species, concentrated tropical biomes, do not have more intact protected habitat. Moreover, 266 little or no habitat within...

10.1111/ele.13859 article EN Ecology Letters 2021-08-16

ABSTRACT Assessing the extinction risk of species through IUCN Red List is key to guiding conservation policies and reducing biodiversity loss. This process resource-demanding, however, requires a continuous update which becomes increasingly difficult as new are added List. The use automatic methods, such comparative analyses predict risk, can be an efficient alternative maintaining up date assessments. Using amphibians study group, we were more likely change status, in order suggest that...

10.1101/2023.02.08.526823 preprint EN cc-by bioRxiv (Cold Spring Harbor Laboratory) 2023-02-08

Abstract Variation in life histories influences demographic processes from adaptive changes to population declines leading extinction. Among history traits, generation length offers a critical feature forecast species’ trajectories such as (widely used by the IUCN Red List of Threatened Species) and adaptability environmental change over time. Therefore, estimates are crucial monitor stability or future highly threatened organisms, particularly ectothermic tetrapods (amphibians reptiles) –...

10.1101/2024.05.23.595540 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2024-05-24

Abstract Protected areas currently cover about 15% of the global land area, and constitute one main tools in biodiversity conservation. Quantifying their effectiveness at protecting species from local decline or extinction involves comparing protected with counterfactual unprotected sites representing “what would have happened to had they not been protected”. Most studies are based on pairwise comparisons, using neighbour as counterfactuals, but this choice is often subjective may be prone...

10.1101/433037 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2018-10-03

Abstract Protected areas are the cornerstones of global biodiversity conservation efforts 1,2 , but to fulfil this role they must be effective at conserving ecosystems and species that occur within their boundaries. This is particularly imperative in tropical forest hotspots, regions concentrate a major fraction world’s while also being under intense human pressure 3–5 . But these strongly lack adequate monitoring datasets enabling contrast protected with comparable unprotected sites 6,7...

10.1101/2020.01.21.912345 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2020-01-21
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