Dr. Amandine Gasc
Human-Environment Modeling and Analysis Laboratory
Center for Global Soundscapes
Purdue University - MANN Hall
203 S. Martin Jischke Drive
West Lafayette, Indiana 47907, USA
My background is in ecology and biological conservation with a speciality in acoustics. Thanks to a CNRS INEE PhD Grant, I worked for my PhD on the analysis and monitoring of animal biodiversity using passive acoustics. Today I am working in the Center for Global Soundscapes on soundscape ecology projects thanks to a NSF grant.
Key-Words: biodiversity, bioacoustics, conservation, soundscape, acoustic communities, acoustic diversity indicators.
Biodiversity assessment—analysis and monitoring of animal biodiversity using passive acoustics.
Biodiversity measurement is an urgent and challenging task. I am interested in using acoustic methods—especially the global acoustic method—to evaluate and monitor biodiversity. This recent method, proposed first in Sueur et al., PLos ONE, 2008, aims to infer local biodiversity through acoustic diversity indices calculated on animal community sounds or biophony. Non-invasive, inexpensive and fast, this method could be really powerful as a concrete biodiversity assessment program.
Part of my research focuses on the acoustic diversity indices (publication of these indices has greatly increased since 2008). I am testing these indices to determine what kind of biodiversity information can be extracted through a global analysis of acoustic complexity
Ecological dynamics regarding soundscapes.
As an important component of complex interactions between biological, geological, and human dynamics, soundscapes greatly impact the lifestyles of innumerable animal species. Soundscapes are highly variable depending of time of the day, time of the year and location. Many of these variations are linked to natural cyclical processes, and these phenological parameters of soundscapes are still not well described.
The soundscape dynamics study will improve knowledge of the processes at the origin of theses dynamics and of the interaction between these processes. It will also allow us to monitor the change of these dynamics due to disturbances.
Disturbances—the impact of wildfire, invasive species, and habitat degradation on acoustic communities.
A better knowledge of both acoustic diversity and soundscape dynamics would help us to improve both detection of disturbances and evaluation of their impacts. I am involved with several current studies concerning this topic, and I am also really interested in monitoring restoration processes of a soundscape after disturbance.
Evolution and phylogeny—co-evolution of acoustic, morphologic, and molecular variables.
Another interesting research area is the evolutionary part of these acoustic animal communities.
Indeed, if the theories of acoustic niches and habitat filtering are known as potential drivers of acoustic diversity, reconstructing the phylogeny of sound-producing species while considering molecular and morphological data could help us to understand the evolution of song parameters.
TEACHING and POPULAR SCIENCE
Soundscape lab for remote sensing courses in Purdue University, undergraduate level. Creation and teaching, 3hours.
Lecture 'The use of bioacoustic in taxonomy' in the MNHN, graduate level. Creation and teaching, 2 hours.
R - code and statistical analyses in the MNHN, PhD level. Help in the R classes, 60 hours. See http://rug.mnhn.fr/semin-r/
Record the Earth - the citizen science program . Scientific consultation. See https://www.recordtheearth.org/
Perkins school for the blind: three days of class and activities around soundscape ecology for visually impaired students
YELLs (Your Ecosystem Listening Labs): development of outdoor and indoor labs for kids about soundscape ecology (in progress)
Global soundscapes - The Interactive Theater Show (in progress). Scientific consultation.
iListen. an educational web-portal (in progress). Scientific consultation.
Jack Vanscha, one year, undergrade student. Optimization of soundscape sampling methodology in tropical forest. in progress
Kristen Mori, one year, undergrade student. Time-series analyses applied on the Tippecanoe long-term soundscape monitoring program. in progress
Benjamin Dechant, 4 months, grade student (Master 2). Impact of agroforest management on animal diversity: application of an acoustic method.
Coralie Burrow, 4 months, grade student (Master 2). Distinctiveness of french avifauna.
Pierre Yves, 2 months, undergrade student. Sampling and first analyses of ponds acoustic diversity.
Desjonquères C., Ryback F., Depraetere M., Gasc A., Le Viol I., Pavoine S. and Sueur J. (2015) First Description of underwater acoustic diversity in three temperate ponds. PeerJ, 3: e1393
Ulloa J. S., Gasc A., Gaucher P., Aubin T., Réjou-Méchain M., Sueur J. (2015). Screening large audio datasets to determine the time and space distribution of Screaming Piha birds in a tropical forest. Ecological Informatics, 31:91-99
Lomolino M. V., Pijanowski B. & Gasc A. (2015) The silence of biogeography. Journal of Biogeography, 42:1187-1196.
Legendre F., Deleporte P., Depraetere M., Gasc A. , Pellens R., Grandcolas P. (2015) Dyadic behavioural interactions in cockroaches Blaberidae): ecomorphological and evolutionary implications. Behaviour, 152:1229:1256.
Gasc A., Pavoine S., Lellouch L., Grandcolas P. & Sueur J. (2015) Acoustic indices for biodiversity assessments: Analyses of bias based on simulated bird assemblages and recommendations for field surveys. Biological Conservation, 191:306-312.
Sueur, J., Farina, A., Gasc, A. , Pieretti, N. & Pavoine, S. (2014) Acoustic indices for biodiversity assessment and landscape ecology. Acta Acustica, 100:772-781.
Rodriguez A., Gasc A. , Pavoine S., Grandcolas P., Gaucher P. & Sueur J. (2014). Temporal and spatial variability of animal sound within a neotropical forest. Ecological Informatics. Ecological Informatics, 21:133-143.
Pavoine S., Gasc A., Bonsall M. & Mason N. (2013). Correlations between phylogenetic and functional diversity : mathematical artefacts or true ecological and evolutionary processes ? Journal of Vegetation Science (Special Issue), 24 : 781-793.
Gasc A., Sueur J., Pavoine S., Pellens R. & Grandcolas P. (2013). Biodiversity sampling using global acoustic approach : contrasting sites with microendemics in New Caledonia. PLoS ONE, 8(5) : e65311. doi:10.1371/journal.pone.0065311.
Pavoine S., Blondel J., Dufour A.B., Gasc A. & Bonsall M.B. (2013). A new technique for analysing interacting factors affecting biodiversity patterns : Crossed-DPCoA. PLoS ONE, 8(1), e54530. doi:10.1371/journal.pone.0054530.
Gasc A., Sueur J., Jiguet F., Devictor V., Grandcolas P., Burrow C., Depraetere M. & Pavoine S. (2013) - Assessing biodiversity with sound : do acoustic diversity indices reflect phylogenetic and functional diversities of bird communities ? Ecological Indicators, 25 : 279-287.
Gasc A. (2012) Assessing and monitoring of biodiversity using innovative acoustic techniques. PhD thesis co-supervised by Grandcolas P., Sueur J. & Pavoine S.
Sueur J., Gasc A., Grandcolas P. & Pavoine S. (2012) - Global estimation of animal diversity using automatic acoustic sensors. In Le Galliard JF, Guarini JM, Gaill F (Eds), Sensors for ecology : towards integrated knowledge of ecosystems. CNRS Editions, 101-119.
Depraetere M., Pavoine S., Jiguet F., Gasc A., Duvail S. & Sueur J. (2012) Monitoring animal diversity using acoustic indices : implementation in a temperate woodland. Ecological Indicators, 13 : 46-54.
Gasc A., Duryea M.C., Cox R.M., Kern A. & Calsbeek R. (2010) Invasive Predators Deplete Genetic Diversity of Island Lizards. PLoS ONE, 5(8) : e12061. doi:10.1371/journal.pone.0012061.
Conferences and workshops
The Global Sustainable Soundscapes Network ' workshop,USA. Oral presentation. Gasc Amandine. Soundscape Ecology perspectives.
The Global Sustainable Soundscapes Network ' workshop,USA. Lab. Gasc Amandine, Pijanowski Bryan. Soundscape measurements to evaluate soundscape dynamics in the world.
Ecology and acoustics, Paris, France. Oral presentation. Gasc Amandine, Pijanowski Bryan, Anso Jeremy, Jourdan Herve, Sueur Jerome, Jung Jinha and Desutter-Grandcolas Laure. Soundscape measurements to evaluate impacts of habitat degradation on acoustic animal communities.
US-IALE Annual Symposium, Anchorage, USA. Oral presentation. Gasc Amandine, Pijanowski Bryan, Anso Jeremy, Jourdan Herve, Sueur Jerome, Jung Jinha and Desutter-Grandcolas Laure. Soundscape measurements to evaluate disturbance impacts on natural ecosystems.
International Bat Research Conference, San jose, Costa Rica. Oral presentation. Gasc Amandine, Julien Jean-François, Lois Gregoire, Penone Caterina, Le viol Isabelle and Kerbiriou Christian. What scale for what species to investigate the effect of habitat on bat activity?
Biodiversity Asia congress, Bangalore, India. Poster. Gasc Amandine, Dechant Benjamin, Ayyappan Narayanan, Pélissier Raphael,Pavoine Sandrine, Grandcolas Philippe and Sueur Jerome. Impact of agroforest management on animal diversity: application of an acoustic method.
Société Française d’acoustique, Paris, France. Oral presentation. Gasc Amandine. Estimation de la biodiversité: Les points forts des méthodes acoustiques.
IBAC, La Rochelle, France. Oral presentation. Gasc Amandine, Sueur Jerome, Devictor Vincent, Grandcolas Philippe, Jiguet Frederic, Burrow Coralie and Pavoine Sandrine. Assessing biodiversity with sound: what do acoustic diversity indices measure?
EEF, Avila, Spaine. Flash presentation. Gasc Amandine, Sueur Jerome, Devictor Vincent, Grandcolas Philippe, Jiguet Frederic, Burrow Coralie and Pavoine Sandrine. Assessing biodiversity with sound: what do acoustic diversity indices measure?
"Ecologie 2010", Montpellier, France. Poster. Gasc Amandine, Pavoine Sandrine, Sueur Jerome, Grandcolas Philippe. Biodiversity sampling using a meta-acoustic method: micro-endemism detection in New-Caledonia.
Through different research projects, I recorded the soundscape of different ecosystems: tropical forest, temperate forest, terrestrial freshwater and desert. All these trip were wonderful in science but also in human knowledge, I would like to thanks all my fieldtrip partners !
United States of America, Indiana, 2015. Management of the 2015 soundscape collection for the Tippecanoe long-term monitoring program.
United States of America, Nebraska, April 2015. NSF grant. Field work support for the Plate Basin Time-Lapse project.
Costa Rica, La Selva Biological Station, January 2015. NSF grant. Starting a long-term acoustic survey in order to study the seasonal dynamic of the soundscape in a tropical forest environment
United States of America, Maine, April 2014. NSF grant. Starting of a long-term acoustic study in the Wells Reserve on 11 sites in order to study tidal dynamic impact on soundscape.
United States of America, Arizona, February 2014. NSF grant. Starting of a long-term acoustic study in the Chiricahua National Monument on 27 sites in 4 different habitat to study the impact of wildfire severity level on the soundscape.
New-Caledonia, October-November 2013. ATM MNHN grant. Collecting recordings in 24 tropical sites (forest, para-forest and maquis habitats). The acoustic method will be used to try to detect cricket’s community structure regarding both habitat degradation level and invasive ant presence.
India, Western Ghats, February 2011. FRB BIOSOUND grant. Collecting recordings in two types of agroforests (coffee plantation with native trees, coffee plantation without native trees) and in native forests.
French Guyana, November 2010. CNRS grant. Collecting recordings using a microphone 3D network in the tropical forest of the CNRS research station "Inselberg".
France, Parc Naturel de la Haute Vallée de Chevreuse, summer 2010. CNRS INEE grant. Collecting recordings using three hydrophones to explore ponds biodiversity.
New-Caledonia, May 2010. ANR BIONEOCAL grant. Collecting recordings in three tropical forest sites. The acoustic method will be used to try to detect community structure.
Bahamas, May 2009. Dartmouth University grant. Collecting Lizard biologic material for molecular analysis.
Wells reserve at Laudholm
Perkins school for the blind
Chiricahua National Monument
Parc Naturelle de la Haute Vallée de Chevreuse (PNR de Chevreuse)
Institut de systematique, evolution et biodiversite-UMR 7205-CNRS-MNHN
Institut de systematique, evolution et biodiversite-UMR 7205-Museum national d'Histoire naturelle de Paris
Centre d’Ecologie et de Sciences de la COnservation-UMR7204-Museum national d'Histoire naturelle de Paris