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Sökning: WFRF:(Fischer Thomas) > Lantbruksvetenskap

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1.
  • Edger, Patrick P., et al. (författare)
  • The butterfly plant arms-race escalated by gene and genome duplications
  • 2015
  • Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 112:27, s. 8362-8366
  • Tidskriftsartikel (refereegranskat)abstract
    • Coevolutionary interactions are thought to have spurred the evolution of key innovations and driven the diversification of much of life on Earth. However, the genetic and evolutionary basis of the innovations that facilitate such interactions remains poorly understood. We examined the coevolutionary interactions between plants (Brassicales) and butterflies (Pieridae), and uncovered evidence for an escalating evolutionary arms-race. Although gradual changes in trait complexity appear to have been facilitated by allelic turnover, key innovations are associated with gene and genome duplications. Furthermore, we show that the origins of both chemical defenses and of molecular counter adaptations were associated with shifts in diversification rates during the arms-race. These findings provide an important connection between the origins of biodiversity, coevolution, and the role of gene and genome duplications as a substrate for novel traits.
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2.
  • Fischer, Joern, et al. (författare)
  • Integrating resilience thinking and optimisation for conservation.
  • 2009
  • Ingår i: Trends in Ecology & Evolution. - : Elsevier BV. - 0169-5347 .- 1872-8383. ; 24:10, s. 549-54
  • Tidskriftsartikel (refereegranskat)abstract
    • Conservation strategies need to be both effective and efficient to be successful. To this end, two bodies of research should be integrated, namely 'resilience thinking' and 'optimisation for conservation,' both of which are highly policy relevant but to date have evolved largely separately. Resilience thinking provides an integrated perspective for analysis, emphasising the potential of nonlinear changes and the interdependency of social and ecological systems. By contrast, optimisation for conservation is an outcome-oriented tool that recognises resource scarcity and the need to make rational and transparent decisions. Here we propose that actively embedding optimisation analyses within a resilience-thinking framework could draw on the complementary strengths of the two bodies of work, thereby promoting cost-effective and enduring conservation outcomes.
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  • Resultat 1-3 av 3

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