@article {7102, title = {Variacion de la amplitud del nicho isotopico de tres especies de peces en un gradiente de disponibilidad de recursos}, journal = {Ecologia en Bolivia}, volume = {55}, year = {2020}, pages = {6{\textendash}15}, author = {Echeverr{\'\i}a, Aldo and Marc Pouilly and Rejas, Danny} } @article {5916, title = {Variation of the isotopic composition of dissolved organic carbon during the runoff cycle in the Amazon River and the floodplains}, journal = {Comptes Rendus Geoscience}, volume = {350}, year = {2018}, pages = {65{\textendash}75}, doi = {10.1016/j.crte.2017.11.001}, url = {https://doi.org/10.1016/j.crte.2017.11.001}, author = {Patrick Alb{\'e}ric and Marcela A.P. P{\'e}rez and Patricia Moreira-Turcq and Marc F Benedetti and Steven Bouillon and Gwena{\"e}l Abril} } @article {6800, title = {Variable selection and accurate predictions in habitat modelling: a shrinkage approach}, journal = {Ecography}, volume = {40}, year = {2017}, pages = {549-560}, abstract = {Habitat modelling is increasingly relevant in biodiversity and conservation studies. A typical application is to predict potential zones of specific conservation interest. With many environmental covariates, a large number of models can be investigated but multi-model inference may become impractical. Shrinkage regression overcomes this issue by dealing with the identification and accurate estimation of effect size for prediction. In a Bayesian framework we investigated the use of a shrinkage prior, the Horseshoe, for variable selection in spatial generalized linear models (GLM). As study cases, we considered 5 datasets on small pelagic fish abundance in the Gulf of Lion (Mediterranean Sea, France) and 9 environmental inputs. We compared the predictive performances of a simple kriging model, a full spatial GLM model with independent normal priors for regression coefficients, a full spatial GLM model with a Horseshoe prior for regression coefficients and 2 zero-inflated models (spatial and non-spatial) with a Horseshoe prior. Predictive performances were evaluated by cross-validation on a hold-out subset of the data: models with a Horseshoe prior performed best, and the full model with independent normal priors worst. With an increasing number of inputs, extrapolation quickly became pervasive as we tried to predict from novel combinations of covariate values. By shrinking regression coefficients with a Horseshoe prior, only one model needed to be fitted to the data in order to obtain reasonable and accurate predictions, including extrapolations.}, doi = {10.1111/ecog.01633}, url = {https://onlinelibrary.wiley.com/doi/full/10.1111/ecog.01633}, author = {Authier, Matthieu and Saraux, Claire and Clara P{\'e}ron} } @article {5022, title = {Visual census, photographic records and the trial of a video network provide first evidence of the elusive Sicyopterus cynocephalus in Australia}, journal = {Cybium}, volume = {41}, year = {2017}, month = {06/2017}, pages = {117-125}, abstract = {

Opportunistic encounters with an elusive large-bodied sicydiine goby in a single plunge pool led us to photograph and deploy three video cameras to detect individuals in that pool. Subsequently, a catchment-wide search indicated that the species, eventually identified as Sicyopterus cynocephalus, was confined to the single pool where it was originally detected. A network of ten video cameras was then deployed to estimate the number of individuals of that species and of a congener, S. lagocephalus, by non-destructive means. This study provides the first record of S. cynocephalus in Australia, and showcases the synergy of active snorkel searches and a remote camera network in counting individuals of two sympatric species of Sicyopterus.

}, keywords = {Australia, Coastal stream, Elusive species, First record, Gobiidae, Sicyopterus cynocephalus, Underwater video, Visual census}, author = {Ebner, Brendan C and Donaldson, James and Allen, Gerald and Philippe Keith} } @article {4519, title = {Validation of trophic and anthropic underwater noise as settlement trigger in blue mussels}, journal = {Scientific Reports}, volume = {6}, year = {2016}, pages = {33829}, author = {Jolivet, Aur{\'e}lie and R{\'e}jean Tremblay and Fr{\'e}d{\'e}ric Olivier and Gervaise, C{\'e}dric and R{\'e}mi Sonier and Genard, Bertrand and Laurent Chauvaud} } @article {3829, title = {virtualspecies, an R package to generate virtual species distributions}, journal = {Ecography}, volume = {39}, year = {2016}, pages = {599-607}, abstract = {virtualspecies is a freely available package for R designed to generate virtual species distributions, a procedure increasingly used in ecology to improve species distribution models. This package combines the existing methodological approaches with the objective of generating virtual species distributions with increased ecological realism. The package includes (1) generating the probability of occurrence of a virtual species from a spatial set of environmental conditions (i.e., environmental suitability), with two different approaches; (2) converting the environmental suitability into presence-absence with a probabilistic approach; (3) introducing dispersal limitations in the realised virtual species distributions and (4) sampling occurrences with different biases in the sampling procedure. The package was designed to be extremely flexible, to allow users to simulate their own defined species-environment relationships, as well as to provide a fine control over every simulation parameter. The package also includes a function to generate random virtual species distributions. We provide a simple example in this paper showing how increasing ecological realism of the virtual species impacts the predictive performance of species distribution models. We expect that this new package will be valuable to researchers willing to test techniques and protocols of species distribution models as well as various biogeographical hypotheses.}, doi = {10.1111/ecog.01388}, url = {https://onlinelibrary.wiley.com/doi/full/10.1111/ecog.01388}, author = {Leroy, Boris and Meynard, Christine N. and Bellard, C{\'e}line and Courchamp, Franck} } @article {4392, title = {Variations in reproductive strategy of the silver Arowana, Osteoglossum bicirrhosum Cuvier, 1829 from four sub-basins of the Peruvian Amazon}, journal = {Journal of Applied Ichthyology }, volume = {31}, year = {2015}, pages = {19-30}, author = {Fabrice Duponchelle and Ruiz-Arce Adela and Waty, A. and Garc{\'\i}a-Vasquez, Aurea and Renno, J-F and Chu-Koo, F and Garc{\'\i}a-D{\'a}vila, C. and Vargas, Gladys and Salvador Tello and Ortiz, A. and Pinedo, R. and Manzanares V{\'a}squez, R. and Jesus Nu{\~n}ez-Rodriguez} } @article {8450, title = {Validation of Eustiromastix guianae (Caporiacco, 1954) (Araneae, Salticidae) with a first description of the female, and additions to the salticid fauna of French Guiana.}, journal = {Zookeys}, year = {2014}, month = {2014}, pages = {11-8}, abstract = {

In this paper, we validate the doubtful species status of E. guianae, with redescriptions of (supposedly lost) type and holotype males, and a first description of the female. Both sexes are measured and illustrated by pictures of habitus and copulatory organs. Seventeen new salticid species for French Guiana are also reported and a detailed catalogue of all salticid species from the Trinit{\'e} National Nature Reserve is provided.

}, issn = {1313-2989}, doi = {10.3897/zookeys.420.6977}, author = {Courtial, Cyril and Picard, Lionel and Fr{\'e}d{\'e}ric Ysnel and P{\'e}tillon, Julien} } @article {3488, title = {Veliger Size at Metamorphosis and Temporal Variability in Prodissoconch II Morphometry in the Blue Mussel (Mytilus edulis): Potential Impact on Recruitment}, journal = {Journal of Shellfish Research}, volume = {33}, year = {2014}, month = {08/2014}, pages = {443-455}, abstract = {

Examination of the larval shell (prodissoconch) of molluscs with planktotrophic development can provide valuable information on their planktonic and early benthic life. We examined temporal variability of abundance and size among 11,994 veligers of the blue mussel (Mytilus edulis) in a coastal lagoon during settling periods between 1995 and 2009. Size and date at metamorphosis during the recruitment season were determined for 1,925 postlarvae (shell length, 255{\textendash}900 {\textmu}m) with prodissoconch II (PII) measurements. Emphasizing the recurrence of metamorphosis delay in the field, our study reveals a net increase in mean size at metamorphosis through time, with means for PII size ranging from 255{\textendash}288 {\textmu}m early in summer (after peak spawning events) to 400{\textendash}422 {\textmu}m (PII) during late July to early September. By estimating the {\textquotedblleft}true{\textquotedblright} settlement date using the amount of dissoconch secreted after metamorphosis, such time-series analyses appropriately recapitulated the temporal pattern of mean pediveliger (competent larvae) size in the plankton. Our results demonstrate that greater settlement success rates were related to small size at metamorphosis{\textemdash}in particular, less than 320 {\textmu}m. Seasonal increase in mean PII size occurring during the latter part of the settling period may be explained by competent veligers remaining adrift and delayed metamorphosis as a result of the lack of favorable encounters with a suitable substrate or the absence of specific trophic signals, or cues, required for stimulating settlement, thus forcing larvae to continue planktonic growth. The difference between the smallest and largest means for PII size corresponds to 122 {\textmu}m of larval shell growth, or 47.8\%, potentially representing a 322\% difference in larval body mass at settlement.

}, keywords = {blue mussel, delayed metamorphosis, larval settlement, Mytilus edulis, prodissoconch II, recruitment, veligers}, doi = {http://dx.doi.org/10.2983/035.033.0213}, url = {http://www.bioone.org/doi/full/10.2983/035.033.0213}, author = {Martel, Andr{\'e} L. and R{\'e}jean Tremblay and Nicolas Toupoint and Fr{\'e}d{\'e}ric Olivier and Myrand, B} } @article {8137, title = {Vulnerability of biodiversity hotspots to global change}, journal = {Global Ecology and Biogeography}, volume = {23}, year = {2014}, month = {Jan-12-2014}, pages = {1376 - 1386}, issn = {1466-822X}, doi = {10.1111/geb.2014.23.issue-1210.1111/geb.12228}, url = {https://onlinelibrary.wiley.com/toc/14668238/23/12}, author = {Bellard, C{\'e}line and Leclerc, Camille and Leroy, Boris and Bakkenes, Michel and Veloz, Samuel and Thuiller, Wilfried and Courchamp, Franck} }