Andréas Ravache

ORCID: 0000-0001-5413-3149
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About
Contact & Profiles
Research Areas
  • Avian ecology and behavior
  • Wildlife Ecology and Conservation
  • Marine animal studies overview
  • Coral and Marine Ecosystems Studies
  • Isotope Analysis in Ecology
  • Marine and fisheries research
  • Animal Ecology and Behavior Studies
  • Recycling and Waste Management Techniques
  • Species Distribution and Climate Change
  • Environmental DNA in Biodiversity Studies
  • Effects and risks of endocrine disrupting chemicals
  • Animal Behavior and Reproduction
  • Fish Ecology and Management Studies
  • Microplastics and Plastic Pollution
  • Energy and Environment Impacts
  • Turtle Biology and Conservation
  • Marine and coastal plant biology
  • Identification and Quantification in Food
  • Marine and Offshore Engineering Studies
  • Air Quality and Health Impacts
  • Fire effects on ecosystems

Centre National de la Recherche Scientifique
2020-2024

Sorbonne Université
2024

Centre d'Écologie et des Sciences de la Conservation
2023-2024

Institut de Recherche pour le Développement
2020-2023

University of New Caledonia
2019-2023

Écologie Marine Tropicale des Océans Pacifique et Indien
2019-2023

Ifremer
2023

Institut de Recherche pour le Développement
2019-2022

Université d'Avignon et des Pays de Vaucluse
2020-2022

Aix-Marseille Université
2019-2020

Abstract Seabirds have been particularly affected by invasive non‐native species, which has led to the implementation of numerous eradication campaigns for conservation these keystone and highly vulnerable species. Although benefits species seabird demonstrated, recovery kinetics different populations on islands after remains poorly evaluated. We conducted long‐term monitoring number breeding pairs seven a small atoll, Surprise Island, New Caledonia (southwestern tropical Pacific). Marine...

10.1111/cobi.14042 article EN cc-by-nc Conservation Biology 2023-01-20

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 633:225-238 (2020) - DOI: https://doi.org/10.3354/meps13171 At-sea movements of wedge-tailed shearwaters during and outside breeding season from four colonies in New Caledonia Henri Weimerskirch1,*, Sophie de Grissac1,2, Andreas Ravache3,4, Aurélien Prudor1, Alexandre Corbeau1, Bradley C. Congdon5, Fiona...

10.3354/meps13171 article EN Marine Ecology Progress Series 2019-10-23

Abstract Two species breeding in sympatry are more likely to coexist if their ecological niches segregated either time, space or trophic habits. Here, we combined GPS-tracking, stable isotope analysis and DNA metabarcoding understand how the rare Tahiti petrel Pseudobulweria rostrata (TP) copes with very abundant (i.e. 500,000 pairs) wedge-tailed shearwater Ardenna pacifica (WTS) when a tropical area. WTS foraged restricted areas along path, while TP predominantly using extensive search...

10.1038/s41598-020-72206-0 article EN cc-by Scientific Reports 2020-09-15

Environmental impact assessments (EIAs) of windfarms require counting bat and bird carcasses around turbines to assess the number individuals killed by collision or barotrauma. In order accurately estimate mortality from carcass counts, most studies correct probability removal between fatality searches, data that is obtained through persistence trials. However, there currently no consensus on trial design estimation methodology. This study aimed sensitivity several estimators employed during...

10.1016/j.biocon.2024.110509 article EN cc-by Biological Conservation 2024-03-21

L'expansion rapide de l’éolien, bien que nécessaire pour lutter contre le changement climatique, suscite des préoccupations concernant ses impacts sur les chauves-souris et oiseaux. En France, un protocole standardisé suivi mortalité encadre la collecte réglementaire données l’estimation parcs éoliens terrestres depuis 2018. Cette étude évalue rapports réalisés par bureaux d’étude, en vue l’amélioration leur qualité capacité à traiter questions globales telles facteurs influençant...

10.20870/revue-set.2024.46.8312 article FR cc-by Sciences Eaux & Territoires 2024-12-04

The increasing use of, and visits to, isolated territories by people (especially tourists) enables the investigation of how biodiversity reacts to evolutionarily novel pressures. We explored behavioural reaction a breeding seabird species, Brown Noddy Anous stolidus , our repeated at two study sites in Chesterfield Islands, newly classified reserve Coral Sea Natural Park. Repeated measures flight‐initiation distances (FIDs) three over time suggest that human visitations induced both spatial...

10.1111/ibi.12810 article EN Ibis 2019-12-17

Abstract Understanding the ecological mechanisms underpinning distribution patterns is vital in managing populations of mobile marine species. This study a first step towards an integrated description habitats and spatial distributions predators Natural Park Coral Sea, one world’s largest marine-protected areas at about 1.3 million km 2 , covering entirety New Caledonia’s pelagic waters. The aims to quantify benefit including proxy for prey abundance predator niche modelling, relative other...

10.1007/s10021-021-00685-x article EN cc-by Ecosystems 2021-08-10

The ability of corals to modulate their nutrition strategy in response variable nutrient supply remains poorly understood, limiting our understanding energy flow coral reef ecosystems and thus comprehension resilience global changes. We used a naturally occurring gradient along the flat two seabird-inhabited islets SW Pacific characterize spatiotemporal fluctuations coastal availability, how it modulates trophic mixotrophic Pocillopora damicornis . clear gradients dissolved [NOx] δ 15 N...

10.3389/fmars.2021.790408 article EN cc-by Frontiers in Marine Science 2022-01-04

The Tahiti petrel ( Pseudobulweria rostrata ) is a rare and declining seabird whose breeding biology nest-site selection are poorly known. Nest-site critical to population fitness, understanding the factors driving it essential for designing effective conservation measures. Here, we measured several variables (topographical, physical environmental) characterize nesting habitats burrows (i.e., width, height, depth type: rocky cavity, dug into soil or under root) on Nemou Island in New...

10.1371/journal.pone.0267408 article EN cc-by PLoS ONE 2022-04-27

Reef-building corals generally thrive in nutrient-poor tropical waters, where among other elements, nitrogen (N) availability often limits primary productivity. In addition to their close association with endosymbiotic dinoflagellates of the family Symbiodiniaceae, enabling an effective use and retention dissolved inorganic (DIN), scleractinian have developed strategies acquire new N: (1) They can ingest N-rich sediment particles preys (from picoplankton macro-zooplankton) via heterotrophy,...

10.3389/fmars.2021.692248 article EN cc-by Frontiers in Marine Science 2021-07-28

Conservation of breeding seabirds typically requires detailed data on where they feed at sea. Ecological niche models (ENMs) can fill gaps, but rarely perform well when transferred to new regions. Alternatively, the foraging radius approach simply encircles sea surrounding a seabird colony (a circle), overestimates habitat. Here, we investigate whether ENMs transfer (predict) niches tropical between global colonies, and refine circles. We collate large dataset tracks (12000 trips, 16...

10.22541/au.168903191.10497767/v1 preprint EN Authorea (Authorea) 2023-07-10
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