Search Results - "Kristjansson, K"

Invertebrate communities in springs across a gradient in thermal regimes by Kreiling, Agnes-Katharina, Govoni, Daniel P, Pálsson, Snæbjörn, Ólafsson, Jón S, Kristjánsson, Bjarni K

“…In many respects, freshwater springs can be considered as unique ecosystems on the fringe of aquatic habitats. This integrates their uniqueness in terms of…”
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Multigenerational exposure to elevated temperatures leads to a reduction in standard metabolic rate in the wild by Pilakouta, Natalie, Killen, Shaun S., Kristjánsson, Bjarni K., Skúlason, Skúli, Lindström, Jan, Metcalfe, Neil B., Parsons, Kevin J., White, Craig

“…In light of global climate change, there is a pressing need to understand and predict the capacity of populations to respond to rising temperatures. Metabolic…”
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Demographic Basis of Spatially Structured Fluctuations in a Threespine Stickleback Metapopulation by Phillips, Joseph S, Einarsson, Árni, Strickland, Kasha, Ives, Anthony R, Kristjánsson, Bjarni K, Räsänen, Katja

“…AbstractUncovering the demographic basis of population fluctuations is a central goal of population biology. This is particularly challenging for spatially…”
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A warmer environment can reduce sociability in an ectotherm by Pilakouta, Natalie, O'Donnell, Patrick J., Crespel, Amélie, Levet, Marie, Claireaux, Marion, Humble, Joseph L., Kristjánsson, Bjarni K., Skúlason, Skúli, Lindström, Jan, Metcalfe, Neil B., Killen, Shaun S., Parsons, Kevin J.

“…The costs and benefits of being social vary with environmental conditions, so individuals must weigh the balance between these trade‐offs in response to…”
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Biochemical Characterization and Validation of a Catalytic Site of a Highly Thermostable Ts2631 Endolysin from the Thermus scotoductus Phage vB_Tsc2631 by Plotka, Magdalena, Kaczorowska, Anna-Karina, Morzywolek, Agnieszka, Makowska, Joanna, Kozlowski, Lukasz P, Thorisdottir, Audur, Skírnisdottir, Sigurlaug, Hjörleifsdottir, Sigridur, Fridjonsson, Olafur H, Hreggvidsson, Gudmundur O, Kristjansson, Jakob K, Dabrowski, Slawomir, Bujnicki, Janusz M, Kaczorowski, Tadeusz

“…Phage vB_Tsc2631 infects the extremophilic bacterium Thermus scotoductus MAT2631 and uses the Ts2631 endolysin for the release of its progeny. The Ts2631…”
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Comparative Metagenomics of Eight Geographically Remote Terrestrial Hot Springs by Menzel, Peter, Gudbergsdóttir, Sóley Ruth, Rike, Anne Gunn, Lin, Lianbing, Zhang, Qi, Contursi, Patrizia, Moracci, Marco, Kristjansson, Jakob K, Bolduc, Benjamin, Gavrilov, Sergey, Ravin, Nikolai, Mardanov, Andrey, Bonch-Osmolovskaya, Elizaveta, Young, Mark, Krogh, Anders, Peng, Xu

“…Hot springs are natural habitats for thermophilic Archaea and Bacteria. In this paper, we present the metagenomic analysis of eight globally distributed…”
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The role of neutral and adaptive evolutionary processes on patterns of genetic diversity across small cave‐dwelling populations of Icelandic Arctic charr (Salvelinus alpinus) by Judson, Braden J., Kristjánsson, Bjarni K., Leblanc, Camille A.‐L., Ferguson, Moira M.

“…Understanding the adaptability of small populations in the face of environmental change is a central problem in evolutionary biology. Solving this problem is…”
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Invertebrate diversity in groundwater‐filled lava caves is influenced by both neutral‐ and niche‐based processes by Kristjánsson, Bjarni K., Combot, Doriane, Reilent, Anett, Phillips, Joseph S., Leblanc, Camille A.‐L.

“…Understanding which factors shape and maintain biodiversity is essential to understand how ecosystems respond to crises. Biodiversity observed in ecological…”
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Quick divergence but slow convergence during ecotype formation in lake and stream stickleback pairs of variable age by Lucek, K, Sivasundar, A, Kristjánsson, B. K, Skúlason, S, Seehausen, O

“…When genetic constraints restrict phenotypic evolution, diversification can be predicted to evolve along so‐called lines of least resistance. To address the…”
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Experimental evidence for adaptive divergence in response to a warmed habitat reveals roles for morphology, allometry and parasite resistance by Smith, Bethany A., Costa, Ana P. B., Kristjánsson, Bjarni K., Parsons, Kevin J.

“…Ectotherms are expected to be particularly vulnerable to climate change–driven increases in temperature. Understanding how populations adapt to novel thermal…”
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Variation in egg size and offspring phenotype among and within seven Arctic charr morphs by Beck, Samantha V., Räsänen, Katja, Kristjánsson, Bjarni K., Skúlason, Skúli, Jónsson, Zophonías O., Tsinganis, Markos, Leblanc, Camille A.

“…Maternal effects have the potential to alter early developmental processes of offspring and contribute to adaptive diversification. Egg size is a major…”
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Fine scale diversity in the lava: genetic and phenotypic diversity in small populations of Arctic charr Salvelinus alpinus by Leblanc, Camille A, Räsänen, Katja, Morrissey, Michael, Skúlason, Skúli, Ferguson, Moira, Kristjánsson, Bjarni K

“…A major goal in evolutionary biology is to understand the processes underlying phenotypic variation in nature. Commonly, studies have focused on large…”
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Seasonal variation in the invertebrate community and diet of a top fish predator in a thermally stable spring by Kreiling, Agnes-Katharina, O’Gorman, Eoin J., Pálsson, Snæbjörn, Benhaïm, David, Leblanc, Camille A., Ólafsson, Jón S., Kristjánsson, Bjarni K.

“…Many life-history events in aquatic invertebrates are triggered by seasonal changes in water temperature, but other ecological factors may be important as…”
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AFLPs and mitochondrial haplotypes reveal local adaptation to extreme thermal environments in a freshwater gastropod by Quintela, María, Johansson, Magnus P, Kristjánsson, Bjarni K, Barreiro, Rodolfo, Laurila, Anssi

“…The way environmental variation shapes neutral and adaptive genetic variation in natural populations is a key issue in evolutionary biology. Genome scans allow…”
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What is a fish? The life and legend of David L.G. Noakes by Bouvier, Lynn D., Baylis, Jeffrey R., Klemetsen, Anders, Kristjánsson, Bjarni K., Li, Judith L., Magnan, Pierre, McLaughlin, Robert L., Muir, Andrew M., Sakakura, Yoshitaka, Skúlason, Skúli

“…David Lloyd George Noakes (1942–2020) is best known for his insatiable curiosity, his quick wit and dry sense of humor, his scientific contributions to the…”
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Patterns, processes and conservation management consequences of intraspecific diversity, illustrated by fishes from recently glaciated lakes by Koene, J. Peter, Bean, Colin W., Kristjánsson, Bjarni K., Skúlason, Skúli, Leblanc, Camille A.‐L., Adams, Colin E.

“…Patterns in phenotypic and genotypic diversity within many species are becoming increasingly apparent, although there remain many species for which such…”
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Divergence of gastropod life history in contrasting thermal environments in a geothermal lake by Johansson, M. P., Ermold, F., Kristjánsson, B. K., Laurila, A.

“…Experiments using natural populations have provided mixed support for thermal adaptation models, probably because the conditions are often confounded with…”
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Evolution of adaptive diversity and genetic connectivity in Arctic charr ( ) in Iceland by Kapralova, K H, Morrissey, M B, Kristjánsson, B K, Olafsdóttir, G Á, Snorrason, S S, Ferguson, M M

“…The ecological theory of adaptive radiation predicts that the evolution of phenotypic diversity within species is generated by divergent natural selection…”
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Repeatability of Adaptive Radiation Depends on Spatial Scale: Regional Versus Global Replicates of Stickleback in Lake Versus Stream Habitats by Paccard, Antoine, Hanson, Dieta, Stuart, Yoel E, von Hippel, Frank A, Kalbe, Martin, Klepaker, Tom, Skúlason, Skúli, Kristjánsson, Bjarni K, Bolnick, Daniel I, Hendry, Andrew P, Barrett, Rowan D H

“…Abstract The repeatability of adaptive radiation is expected to be scale-dependent, with determinism decreasing as greater spatial separation among…”
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Geothermal stickleback populations prefer cool water despite multigenerational exposure to a warm environment by Pilakouta, Natalie, Killen, Shaun S., Kristjánsson, Bjarni K., Skúlason, Skúli, Lindström, Jan, Metcalfe, Neil B., Parsons, Kevin J.

“…Given the threat of climate change to biodiversity, a growing number of studies are investigating the potential for organisms to adapt to rising temperatures…”
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