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Title |
Seven snail species hidden in one: Biogeographic diversity in an apparently widespread periwinkle in the Southern Ocean |
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Journal |
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Year  |
2022 |
Publication |
Journal of Biogeography |
Abbreviated Journal |
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Volume |
49 |
Issue |
8 |
Pages |
1521-1534 |
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Keywords |
Antarctic cryptic species dispersal Littorinidae species-delimitation analyses sub-Antarctic vicariance |
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1044 |
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1365-2699 |
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yes |
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8433 |
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Title |
Model evaluation of short-lived climate forcers for the Arctic Monitoring and Assessment Programme: a multi-species, multi-model study |
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Year |
2022 |
Publication |
Atmospheric Chemistry and Physics |
Abbreviated Journal |
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Volume |
22 |
Issue |
9 |
Pages |
5775-5828 |
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1215 |
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ISSN |
1680-7316 |
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yes |
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Serial |
8506 |
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Author |
D. Noll, F. Leon, D. Brandt, P. Pistorius, C. Le Bohec, F. Bonadonna, P. N. Trathan, A. Barbosa, A. Raya Rey, G. P. M. Dantas, R. C. K. Bowie, E. Poulin, J. A. Vianna |
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Title |
Positive selection over the mitochondrial genome and its role in the diversification of gentoo penguins in response to adaptation in isolation |
Type |
Journal |
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Year |
2022 |
Publication |
Scientific Reports |
Abbreviated Journal |
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Volume |
12 |
Issue |
1 |
Pages |
3767 |
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Keywords |
Evolution Evolutionary genetics |
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Abstract |
Although mitochondrial DNA has been widely used in phylogeography, evidence has emerged that factors such as climate, food availability, and environmental pressures that produce high levels of stress can exert a strong influence on mitochondrial genomes, to the point of promoting the persistence of certain genotypes in order to compensate for the metabolic requirements of the local environment. As recently discovered, the gentoo penguins (Pygoscelis papua) comprise four highly divergent lineages across their distribution spanning the Antarctic and sub-Antarctic regions. Gentoo penguins therefore represent a suitable animal model to study adaptive processes across divergent environments. Based on 62 mitogenomes that we obtained from nine locations spanning all four gentoo penguin lineages, we demonstrated lineage-specific nucleotide substitutions for various genes, but only lineage-specific amino acid replacements for the ND1 and ND5 protein-coding genes. Purifying selection (dN/dS??1) was mostly present in codons of the Complex I (NADH genes), supported by two different codon-based methods at the ND1 and ND4 in the most divergent lineages, the eastern gentoo penguin from Crozet and Marion Islands and the southern gentoo penguin from Antarctica respectively. Additionally, ND5 and ATP6 were under selection in the branches of the phylogeny involving all gentoo penguins except the eastern lineage. Our study suggests that local adaptation of gentoo penguins has emerged as a response to environmental variability promoting the fixation of mitochondrial haplotypes in a non-random manner. Mitogenome adaptation is thus likely to have been associated with gentoo penguin diversification across the Southern Ocean and to have promoted their survival in extreme environments such as Antarctica. Such selective processes on the mitochondrial genome may also be responsible for the discordance detected between nuclear- and mitochondrial-based phylogenies of gentoo penguin lineages. |
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Programme |
137,354 |
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Bachelor's thesis |
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ISSN |
2045-2322 |
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yes |
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Serial |
8457 |
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Author |
Damien Ketcherside, Vanessa Selimovic, Lu Hu, Robert J. Yokelson, Ellis Robinson, Peter F. DeCarlo, Andrew Holen, Judy Wu, Kerri Pratt, Karolina Cysneiros de Carvalho, Brent J. Williams, Meeta Cesler-Maloney, Jingqiu Mao, William R. Simpson, Brice Temime Roussel, Barbara D'Anna |
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Title |
Wintertime Sources and Sinks of Volatile Organic Compounds in Fairbanks, Alaska |
Type |
Peer-reviewed symposium |
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Year |
2022 |
Publication |
AGU Fall Meeting 2022 |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Abstract |
Air pollution in urban valleys has resulted in many being classified as non-att... |
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Programme |
1215 |
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yes |
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Call Number |
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Serial |
8512 |
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Title |
Integument carotenoid-based colouration reflects contamination to perfluoroalkyl substances, but not mercury, in arctic black-legged kittiwakes |
Type |
Journal |
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Year |
2022 |
Publication |
Frontiers in ecology and evolution |
Abbreviated Journal |
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Volume |
10 |
Issue |
952765 |
Pages |
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Keywords |
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Abstract |
Anthropogenic activities are introducing multiple chemical contaminants into ecosystems that act as stressors for wildlife. Perfluoroalkyl substances (PFAS) and mercury (Hg) are two relevant contaminants that may cause detrimental effects on the fitness of many aquatic organisms. However, there is a lack of information on their impact on the expression of secondary sexual signals that animals use for mate choice. We have explored the correlations between integument carotenoid-based colourations, blood levels of carotenoids, and blood levels of seven PFAS and of total Hg (THg) in 50 adult male black-legged kittiwakes (Rissa tridactyla) from the Norwegian Arctic during the pre-laying period, while controlling for other colouration influencing variables such as testosterone and body condition. Kittiwakes with elevated blood concentrations of PFAS (PFOSlin, PFNA, PFDcA, PFUnA, or PFDoA) had less chromatic but brighter bills, and brighter gape and tongue; PFOSlin was the pollutant with the strongest association with bill colourations. Conversely, plasma testosterone was the only significant correlate of hue and chroma of both gape and tongue, and of hue of the bill. Kittiwakes with higher concentrations of any PFAS, but not of THg, tended to have significantly higher plasma concentrations of the carotenoids astaxanthin, zeaxanthin, lutein, and cryptoxanthin. Our work provides the first correlative evidence that PFAS exposure might interfere with the carotenoid metabolism and the expression of integument carotenoid-based colourations in a free-living bird species. This outcome may be a direct effect of PFAS exposure or be indirectly caused by components of diet that also correlate with elevated PFAS concentrations (e.g., proteins). It also suggests that there might be no additive effect of THg co-exposure with PFAS on the expression of colourations. These results call for further work on the possible interference of PFAS with the expression of colourations used in mate choice. |
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Programme |
330 |
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ISSN |
2296-701X |
ISBN |
2296-701X |
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Approved |
yes |
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Call Number |
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Serial |
8576 |
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Author |
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Title |
Big data approaches to the spatial ecology and conservation of marine megafauna |
Type |
Journal |
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Year |
2022 |
Publication |
ICES Journal of Marine Science |
Abbreviated Journal |
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Volume |
79 |
Issue |
4 |
Pages |
975-986 |
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Abstract |
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Programme |
109,388,1201 |
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Thesis |
Bachelor's thesis |
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ISSN |
1054-3139 |
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Approved |
yes |
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Call Number |
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Serial |
8332 |
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Title |
The rising threat of climate change for arthropods from Earth's cold regions: Taxonomic rather than native status drives species sensitivity |
Type |
Journal |
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Year |
2022 |
Publication |
Global Change Biology |
Abbreviated Journal |
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Volume |
28 |
Issue |
20 |
Pages |
5914-5927 |
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Keywords |
arachnid Araneae Coleoptera Diptera heat exposure insect sub-Antarctic islands temperature thermal fluctuations warming |
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Abstract |
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Programme |
136 |
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Edition |
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ISSN |
1365-2486 |
ISBN |
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Approved |
yes |
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Call Number |
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Serial |
8442 |
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Title |
The magnitude, diversity, and distribution of the economic costs of invasive terrestrial invertebrates worldwide |
Type |
Journal |
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Year |
2022 |
Publication |
Science of The Total Environment |
Abbreviated Journal |
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Volume |
835 |
Issue |
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Pages |
155391 |
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Keywords |
Dollar InvaCost Invasion management Monetary impact Non-native Socioeconomic indicators |
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Abstract |
Invasive alien species (IAS) are a major driver of global biodiversity loss, hampering conservation efforts and disrupting ecosystem functions and services. While accumulating evidence documented ecological impacts of IAS across major geographic regions, habitat types and taxonomic groups, appraisals for economic costs remained relatively sparse. This has hindered effective cost-benefit analyses that inform expenditure on management interventions to prevent, control, and eradicate IAS. Terrestrial invertebrates are a particularly pervasive and damaging group of invaders, with many species compromising primary economic sectors such as forestry, agriculture and health. The present study provides synthesised quantifications of economic costs caused by invasive terrestrial invertebrates on the global scale and across a range of descriptors, using the InvaCost database. Invasive terrestrial invertebrates cost the global economy US$ 712.44 billion over the investigated period (up to 2020), considering only high-reliability source reports. Overall, costs were not equally distributed geographically, with North America (73%) reporting the greatest costs, with far lower costs reported in Europe (7%), Oceania (6%), Africa (5%), Asia (3%), and South America (< 1%). These costs were mostly due to invasive insects (88%) and mostly resulted from direct resource damages and losses (75%), particularly in agriculture and forestry; relatively little (8%) was invested in management. A minority of monetary costs was directly observed (17%). Economic costs displayed an increasing trend with time, with an average annual cost of US$ 11.40 billion since 1960, but as much as US$ 165.01 billion in 2020, but reporting lags reduced costs in recent years. The massive global economic costs of invasive terrestrial invertebrates require urgent consideration and investment by policymakers and managers, in order to prevent and remediate the economic and ecological impacts of these and other IAS groups. |
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136 |
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ISSN |
0048-9697 |
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yes |
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Call Number |
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Serial |
8439 |
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Author |
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Title |
Advancing biological invasion hypothesis testing using functional diversity indices |
Type |
Journal |
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Year |
2022 |
Publication |
Science of The Total Environment |
Abbreviated Journal |
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Volume |
834 |
Issue |
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Pages |
155102 |
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Keywords |
Alien invasive species Community-weighted trait mean Diversity indices Functional traits Invasibility Invasiveness |
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Abstract |
Pioneering investigations on the effects of introduced populations on community structure, ecosystem functioning and services have focused on the effects of invaders on taxonomic diversity. However, taxonomic-based diversity metrics overlook the heterogeneity of species roles within and among communities. As the homogenizing effects of biological invasions on community and ecosystem processes can be subtle, they may require the use of functional diversity indices to be properly evidenced. Starting from the listing of major functional diversity indices, alongside the presentation of their strengths and limitations, we focus on studies pertaining to the effects of invasive species on native communities and recipient ecosystems using functional diversity indices. By doing so, we reveal that functional diversity of the recipient community may strongly vary at the onset of the invasion process, while it stabilizes at intermediate and high levels of invasion. As functional changes occurring during the lag phase of an invasion have been poorly investigated, we show that it is still unknown whether there are consistent changes in functional diversity metrics that could indicate the end of the lag phase. Thus, we recommend providing information on the invasion stage under consideration when computing functional diversity metrics. For the existing literature, it is also surprising that very few studies explored the functional difference between organisms from the recipient communities and invaders of the same trophic levels, or assessed the effects of non-native organism establishment into a non-analogue versus an analogue community. By providing valuable tools for obtaining in-depth diagnostics of community structure and functioning, functional diversity indices can be applied for timely implementation of restoration plans and improved conservation strategies. To conclude, our work provides a first synthetic guide for their use in hypothesis testing in invasion biology. |
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136 |
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0048-9697 |
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yes |
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Serial |
8323 |
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Author |
Dehouck, A.; Lafon, V.; Regniers, O.; Debonnaire, N.; Pillet, V.; Jensen, M.; Baltzer, A.; Garestier, F. |
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Title |
The Svalbard Archipelago: when distant erosion monitoring warns of the magnitude of climate impacts in the rest of the overpopulated world |
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Peer-reviewed symposium |
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Year |
2022 |
Publication |
Living planet symposium 2022, 23-27 may 2022, bonn, germany |
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1223 |
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yes |
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8065 |
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