Explore and move: a key to success in a changing world

International audience"A recommendation – based on reviews by Joe Nocera, Laure Cauchard and Marion Nicolaus – of the article: McCune K, Ross C, Folsom M, Bergeron L, Logan CJ. 2020. Does space use behavior relate to exploration in a species that is rapidly expanding its geographic range? (http://corinalogan.com/Preregistrations/gspaceuse.html) In principle acceptance by PCI Ecology of the version on 23 Sep 2020 https://github.com/corinalogan/grackles/blob/master/Files/Preregistrations/gspaceuse.Rmd.

Selective disappearance of individuals with high levels of glycated haemoglobin in a free-living bird

This work was supported by the ANR (ANR-06-JCJC0082 to B.D.), the CNRS (PEPS INEE and PICS France–Switzerland to B.D.), the French Ministe`re de l’Enseignement Supe´rieur et de la Recherche (PhD fellowship to C.R.), the Re´gion Rhoˆne-Alpes (Explora’doc mobility grant to C.R.), the University of Aberdeen (stipend to C.R.), the L’Ore´al Foundation-UNESCO ‘For Women in Science’ program (fellowship to C.R.) and the Rectors’ Conference of the Swiss Universities (grant to C.R. and P.B.).Peer reviewedPostprin

An Experimental Test of a Causal Link between Problem-Solving Performance and Reproductive Success in Wild Great Tits

This work was supported by a NSERC grant to A.B., a PICS grant from the CNRS (INEE, n° 31520) to B.D., a PhD writing up grant from the FESP (UdM) and a scholarship from the Biological Sciences Department (UdM) to LC and a mobility grant ERASMUS to M.L. We are also grateful to the ABS, the BOU, the BES, the Frank M. Chapman from AMNH and the Fred Cooke from the SCO for awards and research grants attributed to L.C.Peer reviewedPublisher PD

The Role of Cognition in Social Information Use for Breeding Site Selection : Experimental Evidence in a Wild Passerine Population

This work was funded by the ANR (Evol-Cog project, ANR-19-CE02-0007), the Centre National pour la Recherche Scientifique (PICS) and the Region Rhône-Alpes (CIBLE programme) to BD; the NSERC (postdoctoral fellowship), the ABS (student research award), the BOU and the BES (research grants), and the SCO (Fred Cook award) to LC; the Ministère de l'Enseignement Supérieur et de la Recherche, the Department of Ecology and Genetics from Uppsala University and Stiftelsen för Zoologisk Forskning, the Région Auvergne Rhone-Alpes (Explora'Doc mobility grants) and by the University of Lyon (ATER fellowship and IDEX mobility grant) to JM; the Pearcy Sladen Memorial Trust and Carnegie Trust (travel grants), and the BOU and BES (research grants) to PB. The data supporting the findings of this study are openly available in FigShare at http://doi.org/10.6084/m9.figshare.13229081.Peer reviewedPublisher PD

Antioxidant capacity is repeatable across years but does not consistently correlate with a marker of peroxidation in a free-living passerine bird

Many thanks to the landowners of Gotland for access to the study sites; to Lars Gustafsson for logistics on the field; to fifteen students and field assistants for their contribution to fieldwork; to François Criscuolo for his help designing the study and his comments on this manuscript; to Holger Schielzeth and Pierre de Villemereuil for their advice on adjusting repeatability and correlation estimates for measurement error and to Alan A. Cohen, David Costantini and anonymous reviewers for their comments on previous versions of this manuscript. This work was supported by the French National Center for Scientific Research (PICS France34 Switzerland to B.D.); the French Ministry of Research (PhD fellowship to C.R.); the University of Aberdeen (stipend to C.R.); the L’Oréal Foundation-UNESCO “For Women in Science” program (fellowship to C.R.); the Région Rhône-Alpes (Explora’doc mobility grant to C.R.); the Fédération de Recherche 41 BioEnvironnement et Santé (training grant to CR); the Rectors’ Conference of the Swiss Universities (joint doctoral program grant to C.R.) and the Fondation pour l'Université de Lausanne (exchange grant to C.R.); and the Journal of Experimental Biology (travel grant to CR).Peer reviewedPostprin

The Invisible Power of MacHines Revisiting the Proposed Flash Order Ban in the Wake of the Flash Crash

Technological innovation continues to make trading and markets more efficient, generally benefitting market participants and the investing public. But flash trading, a practice that evolved from high-frequency trading, benefits only a select few sophisticated traders and institutions with the resources necessary to view and respond to flashed orders. This practice undermines the basic principles of fairness and transparency in securities regulation, exacerbates information asymmetries and harms investor confidence. This iBrief revisits the Securities and Exchange Commission\u27s proposed ban on the controversial practice of flash trading and urges the Securities and Exchange Commission and the Commodity Futures Trading Commission to implement the ban across the securities and futures markets. Banning flash trading will not impact high-frequency trading or other advantageous innovative trading practices, and will benefit all market participants by making prices and liquidity more transparent. In the wake of the May 6, 2010 flash crash and the passage of the Dodd-Frank Wall Street Reform and Consumer Protection Act, now is an opportune time for the Securities and Exchange Commission and Commodity Futures Trading Commission to implement the ban

Inter-individual variation in provisioning rate, prey size and number, and links to total prey biomass delivered to nestlings in the Collared Flycatcher (Ficedula albicollis)

Acknowledgements We thank the many students that helped with data collection in the field and data extraction back in the laboratory, and all landowners for access to their forest patches. Funding This work was supported by grants from the CNRS (PICS) and from the ASAB to BD; the NSERC and FRQNT (postdoctoral fellowship), the ABS and the SCO (student awards), the AMNH, the BOU and the BES (research grants) to LC. The datasets generated and/or analysed during the current study are available in the Figshare repository, https://doi.org/10.6084/m9.figshare.14264396.Peer reviewedPublisher PD

Born to be young? : Prenatal thyroid hormones increase early-life telomere length in wild collared flycatchers

Acknowledgements: We are grateful to many students and Szymek Drobniak for their help in the field, to three anonymous reviewers for their constructive feedback and to Pat Monaghan for providing access to TRF facilities. Funding: The project was funded by a Marie Sklodowska-Curie Postdoctoral Fellowship (#658085) and a ‘Turku Collegium for Science and Medicine’ Fellowship to AS, and an Academy of Finland grant (# 286278) to SR.Peer reviewedPostprin

Avoiding perceived past resource use of potential competitors affects niche dynamics in a bird community

Social information use is usually considered to lead to ecological convergence among involved con- or heterospecific individuals. However, recent results demonstrate that observers can also actively avoid behaving as those individuals being observed, leading to ecological divergence. This phenomenon has been little explored so far, yet it can have significant impact on resource use, realized niches and species co-existence. In particular, the time-scale and the ecological context over which such shifts can occur are unknown. We examined with a long-term (four years) field experiment whether experimentally manipulated, species-specific, nest-site feature preferences (symbols on nest boxes) are transmitted across breeding seasons and affect future nest-site preferences in a guild of three cavity-nesting birds.</p

The past and the present in decision-making: the use of conspecific and heterospecific cues in nest site selection

Nest-site selection significantly affects fitness, so adaptations for assessment of the qualities of available sites are expected. The assessment may be based on personal or social information, social information referring to the observed location and performance of both con- and heterospecific individuals. Contrary to large-scale breeding habitat selection, small-scale nest-site selection within habitat patches is insufficiently understood. We analyzed nest-site selection in the migratory collared flycatcher Ficedula albicollis in relation to present and past cues provided by conspecifics and by resident tits within habitat patches by using long-term data. Collared flycatchers preferred nest boxes that were occupied by conspecifics in the previous year. This preference was strongest in breeding pairs where both individuals bred in the same forest patch in the previous year. The results also suggest preference for nest boxes close to boxes where conspecifics had a high breeding success in the previous year, and for nest boxes which are presently surrounded by a high number of breeding great tits Parus major. The results indicate social information use in nest-site selection at a small spatial scale, where collared flycatchers use conspecific cues with a time lag of one year and heterospecific cues instantly.</p