@article {9997,
	title = {Description of the behavioural contexts of underwater sound production in juvenile green turtles Chelonia mydasAbstract},
	journal = {Behavioral Ecology and Sociobiology},
	volume = {79},
	year = {2025},
	month = {Jan-02-2025},
	abstract = {Green sea turtles Chelonia mydas have the ability to hear and produce sounds under water, with some of them potentially involved in social communication. To investigate the potential biological function of these sounds, we used a combination of acoustic, video and multi-sensor recordings of 23 free-ranging juvenile green turtles and we examined the co-occurrences of sounds with behaviours or external events. Our study revealed that most of the sounds were produced when the sea turtles were resting or swimming. However, four sound types were produced in more specific contexts. Long sequences of rumbles were recorded after sunset and mainly during resting. All these rumbles appear to have been produced by several individuals recorded simultaneously, suggesting that rumbles may be used for social interactions. The frequency modulated sound was highly associated with scratching behaviour. The grunt that was produced occasionally when green turtles were vigilant or approaching a conspecific. The long squeak was produced significantly by a small number of individuals in the presence of humans. The grunt and the long squeak may be the first evidence of an alarm or warning signal for intra-specific communication in green turtles. Our results mark a significant milestone in advancing the understanding of sound production in the behavioural ecology of sea turtles. Further experimental investigations (i.e., playback experiments) are now required to test the hypotheses suggested by our findings. Warning signals could be used to prevent sea turtles of a danger and may contribute to their conservation.},
	keywords = {Behaviour, Chelonia mydas, Chelonians, juveniles, Underwater sound production},
	issn = {0340-5443},
	doi = {10.1007/s00265-025-03561-z},
	url = {https://link.springer.com/article/10.1007/s00265-025-03561-z},
	author = {Maucourt, L{\'e}o and Charrier, Isabelle and Huetz, Chlo{\'e} and Aubert, Nathalie and Bourgeois, Ouv{\'e}a and Jeantet, Lor{\`e}ne and Lecerf, Nicolas and Lefebvre, Fabien and Lelong, Pierre and Lepori, Muriel and Martin, Jordan and R{\'e}gis, Sidney and Chevallier, Damien}
}
@article {5491,
	title = {Small and large spatial scale coexistence of ctenid spiders in a neotropical forest (French Guiana)},
	journal = {Tropical Zoology},
	volume = {31},
	year = {2018},
	month = {04/2018},
	pages = {85-98},
	abstract = {While spiders constitute the most abundant and diverse arthropods in many habitats, they remained under-studied, especially in tropical rainforests. The goal of this study is to assess the spatial distribution of the spider family Ctenidae by assessing associations of species diversity and population traits among different habitat conditions. Fieldwork was carried out during 2013 in habitats varying in flooding frequency (plateau vs. flooded forest) and elevation (inselberg vs. lowland) in the Nouragues National Natural Reserve, French Guiana. Assemblage composition, population structure, and trait measurements of one dominant species were assessed using hand collection in replicated quadrats. We found strong effects on ctenid assemblages attributable to both elevation and flooding, with changes in relative abundance of species among habitats, but few correlated densities between species. At the population level, main differences in species distribution between and within habitats were detected only when juveniles were taken into account. No effect of elevation was found on the measurements of traits of the dominant species, but legs were proportionally shorter in flooded habitats, suggesting reduced active dispersal in these habitats. Our study highlights the value of complementary of measures of diversity and traits at different biological scales in Ctenidae.},
	keywords = {Araneae, flooding, Guianese shield, inselberg, juveniles},
	doi = {https://doi.org/10.1080/03946975.2018.1448531},
	url = {https://www.tandfonline.com/doi/full/10.1080/03946975.2018.1448531},
	author = {Petillon, J and Leroy, Boris and Djoudi, EA and Vedel, V}
}
