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van vliet-Lanoë B., Bergerat F. (coordinators), Geoffroy L., Guillou H., Maury R., Schneider J.-L. (2018). L'Islande au cœur de l'Atlantique Nord : évolutions géodynamique, climatique et environnementale..
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Philippe Koubbi, Susie Grant, David Ramm, Marino Vacchi, Laura Ghigliotti, Eva Pisano. (2017). Conservation and Management of Antarctic Silverfish Pleuragramma antarctica Populations and Habitats.
Abstract: One of the main conservation objectives for marine systems is to identify areas of ecological importance for biodiversity and essential species habitats which can be used as scientific reference areas for monitoring global change in the absence of major human impacts. The Antarctic silverfish, Pleuragramma antarctica is a keystone pelagic species, that has been assessed on the IUCN Red list of threatened species as a species with “Least Concern”. However, this species is unique as it is placed at one extreme of the notothenioid evolutionary/ecological axis that ranges from benthic to secondary pelagic life style. Its different life stages occur in unique environments such as the platelet ice for eggs, some of the inner shelf canyons for young larvae and at the shelf break with Antarctic krill swarms for juveniles and adults. The winter habitats are not known. In addition to the effects of climate change, a threat to this species is its bycatch in krill fisheries; however it has not been directly harvested since the 1980s. As a midtrophic species, P. antarctica is sensitive to environmental changes and should be monitored in protected scientific reference areas to obtain information on global change. For a midtrophic fish in a supposed wasp-waist ecosystem, strict regulation of bycatch and monitoring should be carried out in parallel with the monitoring of Antarctic krill and ice krill. The designation of protected areas is an important mechanism for preserving the essential habitats of P. antarctica in the Southern Ocean.
Programme: 1142
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Eric Tavernier, Carolina Giraldo. (2017). Trophic Ecology of Early Developmental Stages of Antarctic Silverfish.
Abstract: The Antarctic pelagic ecosystem over the continental shelf is dominated by the Antarctic silverfish Pleuragramma antarctica (Nototheniidae) which represents up to 90% of the fish biomass. P. antarctica is the only notothenioid species to have an entire pelagic life cycle. This species is characterized by a particularly long larval stage that lasts over a year and a vertical distribution with larvae in the surface layer and the older individuals in deeper ones. The reproductive cycle of P. antarctica is closely linked to seasonal sea ice dynamics and early stages depend on the spatial and temporal match with zooplankton production. P. antarctica is planktivorous at all stages of development, larvae are omnivorous actively feeding on diatoms and small copepods such as Oithona and Oncaea spp., while juveniles and adults are strictly carnivorous and feed mainly on copepods and euphausiids. In the early years of its life-history Antarctic silverfish exhibit primarily a marked transition in terms of trophic ecology between larvae and juveniles. The food resource partitioning is relatively clear between larvae and older life stages with a negligible overlap. Although the shift in diet between juveniles and adults remains less obvious in several geographic locations, juveniles and adults seem to share a similar mid-trophic level around Antarctica.
Programme: 1142
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Karl-Ludwig Klein, Kostas Tziotziou, Pietro Zucca, Eino Valtonen, Nicole Vilmer, Olga E. Malandraki, Clarisse Hamadache, Bernd Heber, Jürgen Kiener. (2017). X-Ray, Radio and SEP Observations of Relativistic Gamma-Ray Events.
Abstract: The rather frequent occurrence, and sometimes long duration, of γ-ray events at photon energies above 100 MeV challenges our understanding of particle acceleration processes at the Sun. The emission is ascribed to pion-decay photons due to protons with energies above 300 MeV. We study the X-ray and radio emissions and the solar energetic particles (SEPs) in space for a set of 25 Fermi γ-ray events. They are accompanied by strong SEP events, including, in most cases where the parent activity is well-connected, protons above 300 MeV. Signatures of energetic electron acceleration in the corona accompany the impulsive and early post-impulsive γ-ray emission. γ-ray emission lasting several hours accompanies in general the decay phase of long-lasting soft X-ray bursts and decametric-to-kilometric type II bursts. We discuss the impact of these results on the origin of the γ-ray events.
Programme: 227
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Pierre Jouventin and F. Stephen Dobson. (2018). Why Penguins Communicate, The Evolution of Visual and Vocal Signals.
Abstract: This book is devoted to Penguin Communication and based on the work done by S Dobson in the TAAF including with the program 119 Econergy. Chapter 3 is largely based on the following paper:
Schull Q., Dobson F. S., Stier A., Robin J. P., Bize P. et V. A. Viblanc (2016) Beak color dynamically signals changes in fasting status and parasite loads in king penguins Behav. Ecol. 27: 1684-1693. doi:10.1093/beheco/arw091
Programme: 119
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E. Crubezy, D. Nikolaeva. (2017). Vainqueurs ou vaincus ? L'énigme Iakoute..
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Lavrillier, A., Gabyshev S. (2017). An Arctic Indigenous Knowledge System of Landscape, Climate, and Humans interactions. Evenki Reindeer Herders and Hunters.
Abstract: Co-written by an anthropologist and a reindeer herder (BRISK project co-researcher) on the basis of their field materials, this book offers documentation and analysis of complex traditional environmental knowledge. After discussing the methodology of the Evenki community-based transdisciplinary observatory for monitoring climate and environmental changes with herders (2012-2016), the book reveals some of the results of this co-production. It presents the emic typologies and concepts the Evenki use for understanding norms and anomalies, observing and predicting changes, and adaptating. Conceived together with the herders, the book's structure combines analytical texts (traditional in anthropology) and other forms of presentation, such as abstract diagrams with explanations in Evenki, Russian, and English, diagrams on pictures, and encyclopaedic entries with pictures and trilingual explanations from the herders.
Programme: 1127
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Alexandra Lavrillier, Semen Gabyshev, Maxence Rojo. (2016). The Sable for Evenk Reindeer Herders in Southeastern Siberia: Interplaying Drivers of Changes on Biodiversity and Ecosystem Services: Climate Change, Worldwide Market Econonomy and Extractive Industries (Vol. 9).
Abstract: The transdisciplinary publication introduces the Evenki and their perception of global climate and environmental changes. Then it presents a case study of one of the most important ecosystem services for the Evenki nomads (sable hunting) and how it is threatened by combined drivers of change. It studies in detail changes in the snow and vegetal covers related to sable, analyses the dependency of the nomads on this economic activity, and reflects on how national and international drivers of change influence this trade and, consequently, the well-being of the Evenki. Finally, it concludes by discussing the interplaying drivers of change
Programme: 1127
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Schmidt, N. M., O. Gilg, J. Aars, and R. A. Ims. (2018). Fat, furry and flexible – characteristics of mammals living in the Arctic.
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