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| Levrel, Harold; Fontaine, B.; Henry, Pierre-yves; Jiguet, Frederic; Julliard, Romain; Kerbiriou, Christian; Couvet, Denis. |
| According to the Convention on Biological Diversity (CBD), states have to provide indicators in order to assess the performance of their initiatives for halting the loss of biodiversity. Sixteen headline indicators have been identified for monitoring the CBD targets. Of these indicators only one, "Trends in the abundance and distribution of selected species," is a direct headline indicator of "non-exploited" biodiversity. In France, the implementation of this indicator is completely dependent on data collected by volunteers. Since this investment of volunteer time is equivalent to savings in administrative costs, we attempt in this paper to assign it a monetary value. This enables us to estimate how much the French administration saves thanks to volunteer... |
| Tipo: Text |
Palavras-chave: Biodiversity monitoring; CBD indicators; Citizen science; Replacement cost. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00006/11694/8614.pdf |
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| Ducrettet, Manon; Forget, Pierre-michel; Ulloa, Juan Sebastian; Yguel, Benjamin; Gaucher, Philippe; Prince, Karine; Haupert, Sylvain; Sueur, Jerome. |
| Tropical forests are facing threats that may affect the dynamics of seed dispersers which participate in the forest regeneration. To implement appropriate conservation programs, it appears necessary to monitor seed dispersers and to estimate their response to local changes. Here, we used non-invasive ecoacoustic methods to monitor the activity of a canopy bird, the White-throated toucan, Ramphastos tucanus, a major seed disperser and flagship species of the Amazonian forest. We deployed nine acoustic recorders over 29 days along a road that connects French Guiana to Brazil. We used template matching to automatically detect the vocalizations of R. tucanus. This method, which can easily be repeated with limited human expertise, detected 1748 recordings with... |
| Tipo: Text |
Palavras-chave: Biodiversity monitoring; Tropical forest; Ecoacoustics; Human activity. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00657/76860/78170.pdf |
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| Ulloa, Juan Sebastian; Aubin, Thierry; Llusia, Diego; Courtois, Elodie A.; Fouquet, Antoine; Gaucher, Philippe; Pavoine, Sandrine; Sueur, Jerome. |
| Background: Anurans largely rely on acoustic communication for sexual selection and reproduction. While multiple studies have focused on the calling activity patterns of prolonged breeding assemblages, species that concentrate their reproduction in short-time windows, explosive breeders, are still largely unknown, probably because of their ephemeral nature. In tropical regions, multiple species of explosive breeders may simultaneously aggregate leading to massive, mixed and dynamic choruses. To understand the environmental triggers, the phenology and composition of these choruses, we collected acoustic and environmental data at five ponds in French Guiana during a rainy season, assessing acoustic communities before and during explosive breeding events.... |
| Tipo: Text |
Palavras-chave: Acoustic diversity; Anuran community; Ecoacoustics; Biodiversity monitoring. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00509/62021/66144.pdf |
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