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Author Garcin N, Viblanc VA, Schull Q, Michaux D, Reichert S, Robin JP, Bize P, Stier A
Title Naturally equipped to resist stress Type Peer-reviewed symposium
Year 2021 Publication Society for experimental biology annual conference. poster. actes du colloque Abbreviated Journal
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Abstract Stress exposure and stress response are likely to vary according to life history strategies and environmental contexts. Although the acute release of glucocorticoids in response to unpredictable environmental conditions may lead to adaptative behavioral and physiological responses, exposure to high glucocorticoid levels on the long-term usually leads to deleterious cascading effects on animal’s physiology, behavior and fitness. Yet, some species may be more adapted to cope with challenging events than others and might naturally possess protective mechanisms limiting the adverse consequences of prolonged exposure to high glucocorticoid levels. King penguin chicks being naturally exposed to harsh weather, prolonged fasting and constant predation pressure, we investigated the life-history, behavioral and physiological consequences of an experimental increase in corticosterone levels on the medium and long-term (after removing implants), predicting to find relatively few costs associated with such treatment. Although non-significant, CORT-treated chicks were slightly larger, fledged slightly earlier and had slightly higher survival chances than placebo chicks. CORT-treated chicks were significantly more aggressive and displayed lower corticosterone response to acute stress on the medium term, while their physical activity and whole-body energetics were not significantly affected. While mitochondrial density was not significantly affected by the CORT treatment, CORT-treated chicks had lower oxidative stress levels on the long-term than placebo ones, and no significant impact was observed on telomere shortening. Finally, the expression of several genes (i.e. CORT receptor, HSP90, mTOR, NRF2 and TERF2) was up regulated in treated chicks, which could potentially mediate the apparent ‘stress’ resistance we observed at the phenotypic level.
Programme 119
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Call Number Serial 8454
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Author
Title Seabird population changes following mammal eradication at oceanic Saint-Paul Island, Indian Ocean Type Journal
Year 2021 Publication Journal for Nature Conservation Abbreviated Journal
Volume 63 Issue Pages 126049
Keywords Island restoration Petrels Population growth rate Rats Shearwaters Terns
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Programme 109
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Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1617-1381 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 8459
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Author Samuel Veilleux, Armelle Decaulne, Najat Bhiry
Title Type Journal
Year 2021 Publication Arctic Science Abbreviated Journal
Volume 7 Issue 4 Pages 798-812
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Programme 1148
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Call Number Serial 8461
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Author Armelle Decaulne, Najat Bhiry, Fabienne Joliet, Laine Chanteloup, Thora Martina Herrmann, Bruno Persat, Daniel Germain, Orsane Rousset
Title TAKUJUQ: Where Art and Science meet in Nunavik Type Journal
Year 2021 Publication Tagralik Magazine Abbreviated Journal
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Abstract The TUKISIK (Tukisigasuaqatigit: Understanding together) is a scientific program, ongoing since 2014, concerning human-environment interactions, reinforcing links between scientists and several communities.
Programme 1148
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Call Number Serial 8471
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Author
Title Terrestrial macro-arthropods of the sub-Antarctic islands of Possession (Crozet Archipelago) and Kerguelen: inventory of native and non-native species Type Journal
Year 2021 Publication Zoosystema Abbreviated Journal
Volume 43 Issue 22 Pages 549-561
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Abstract The sub-Antarctic islands of the Southern Ocean harbor biogeographically peculiar biotas which are under threat from climate change, biological invasions and their interactions. Understanding both the indigenous and changing non-indigenous components of these islands is essential for the conservation and management of their biotas. Based on several years of systematic sampling, we present an updated list of terrestrial, free-living macro-invertebrates (insects and spiders) present on the islands of Possession (Crozet Archipelago) and Kerguelen. Ninety-four species were recorded in total on both islands. Forty-one are strictly endemic to one of the two islands, 16 are endemic to the South Indian Ocean Province, and only three were recorded on other sub-Antarctic islands. Beetles and more particularly weevils are the most characteristic group of the fauna of these islands: they include 35 species of which 89% are native and 66% are endemic. One third of the species (30 of 94) are non-indigenous species now naturalized. We discuss these results in terms of biogeography, ecological disharmony and impact of biological invasions.
Programme 136
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ISSN 1280-9551, 1638-9387 ISBN Medium
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Notes Approved yes
Call Number Serial 8472
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Author
Title The Ocean's Whistleblower: The Remarkable Life and Work of Daniel Pauly Type Book
Year 2021 Publication Greystone books ltd. Abbreviated Journal
Volume Issue Pages 349p
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Programme 388
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Series Editor Series Title Abbreviated Series Title
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ISSN ISBN 978-1-77164-754-0 Medium
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Notes Approved yes
Call Number Serial 8482
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Author Viblanc Va, Stier A, Bize P, Schull Q, Criscuolo F, Groscolas R, Robin Jp
Title The ecophysiology of king penguins: responses to a fluctuating environment Type Peer-reviewed symposium
Year 2021 Publication Abbreviated Journal
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Abstract
Programme 119
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Call Number Serial 8484
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Author Niels M. Schmidt, Olivier Gilg, Jon Aars, Rolf A. Ims
Title Fat, Furry, Flexible, and Functionally Important: Characteristics of Mammals Living in the Arctic Type Book
Year 2021 Publication Arctic Ecology Abbreviated Journal
Volume Issue Pages 357-384
Keywords arctic ecosystems Arctic mammals climate change deglaciation food webs homeotherms low mammal species diversity primary production
Abstract Mammals constitute a group of vertebrates that share a number of unique characteristics,such as nursing their young with milk, and having hair. The pattern of low mammal species diversity in the Arctic probably reflects a combination of mainly two driving factors: first, being homeotherms, mammals require a substantial amount of energy to sustain the various life processes, and the arctic regions are characterized by a very low availability of energy due to short seasons for primary production. Secondly, the occurrence of arctic mammals today reflects the reinvasion of the mammal species into the Arctic as the ecosystems were re-established following the deglaciation. This chapter discusses the characteristics of the arctic mammals, including their unique adaptations to life, and their role as both consumer and food base in the arctic ecosystems. Climate change in the Arctic may also alter the interactions within food webs.
Programme 1036
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ISSN ISBN 978-1-118-84658-2 Medium
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Notes Approved yes
Call Number Serial 8489
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Author Karen D. McCoy
Title Community-Level Interactions and Disease Dynamics Type Book
Year 2021 Publication Infectious Disease Ecology of Wild Birds Abbreviated Journal
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Programme 333
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ISSN 978-0-19-874624-9 ISBN 978-0-19-874624-9 Medium
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Notes Approved yes
Call Number Serial 8498
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Author
Title Nitrogen isotopes (?15N) and oxygen isotope anomalies (?17O, ?18O) in atmospheric nitrogen dioxide : a new perspective for isotopic constraints on oxidation and aerosols formation processes Type Communication
Year 2021 Publication EGU General Assembly 2021, 10-30 april 2021, Vienna, Austria Abbreviated Journal
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Programme 1215
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Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN EGU21-2634 ISBN Medium
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Notes Approved yes
Call Number Serial 8511
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