Adaptations of early development to local spawning temperature in anadromous populations of pike (Esox lucius)
Reads0
Chats0
TLDR
The population-specific responses to temperature indicate genetic differentiation in developmental plasticity between populations, and may reflect an adaptation to low temperature during early fry development in Harfjärden, where the stream leading up to the wetland dries out relatively early in the spring, forcing individuals to spawn early.Abstract:
In the wake of climate change many environments will be exposed to increased and more variable temperatures. Knowledge about how species and populations respond to altered temperature regimes is therefore important to improve projections of how ecosystems will be affected by global warming, and to aid management. We conducted a common garden, split-brood temperature gradient (4.5 °C, 9.7 °C and 12.3 °C) experiment to study the effects of temperature in two populations (10 families from each population) of anadromous pike (Esox lucius) that normally experience different temperatures during spawning. Four offspring performance measures (hatching success, day degrees until hatching, fry survival, and fry body length) were compared between populations and among families. Temperature affected all performance measures in a population-specific manner. Low temperature had a positive effect on the Harfjarden population and a negative effect on the Lervik population. Further, the effects of temperature differed among families within populations. The population-specific responses to temperature indicate genetic differentiation in developmental plasticity between populations, and may reflect an adaptation to low temperature during early fry development in Harfjarden, where the stream leading up to the wetland dries out relatively early in the spring, forcing individuals to spawn early. The family-specific responses to temperature treatment indicate presence of genetic variation for developmental plasticity (G x E) within both populations. Protecting between- and within-population genetic variation for developmental plasticity and high temperature-related adaptive potential of early life history traits will be key to long-term viability and persistence in the face of continued climate change.read more
Citations
More filters
Journal ArticleDOI
Ecological and Evolutionary Consequences of Environmental Change and Management Actions for Migrating Fish
TL;DR: Migration strategies in fishes comprise a rich, ecologically important, and socioeconomically valuable example of biological diversity The variation and flexibility in migration is evident between fishes as discussed by the authors...
Journal ArticleDOI
Comparing the Performance of Microsatellites and RADseq in Population Genetic Studies: Analysis of Data for Pike (Esox lucius) and a Synthesis of Previous Studies.
TL;DR: Assessment of the relative performance of microsatellites and RADseq with respect to resolution and conclusiveness of estimates of population differentiation and genetic structure revealed that RADseq performed as well as, or better than microsatellite in detecting genetic structuring in the included studies.
Journal ArticleDOI
Genetic differentiation between and within ecotypes of pike (Esox lucius) in the Baltic Sea
Oscar Nordahl,Per Koch-Schmidt,Johanna Sunde,Yeşerin Yıldırım,Petter Tibblin,Anders Forsman,Per Larsson +6 more
TL;DR: Aquatic systems often lack physical boundaries for gene flow, but ecological and behavioural barriers can form surprisingly fine spatial scale genetic patterns that challenge traditional, large genetic patterns.
Journal ArticleDOI
Genetic population structure of pike (Esox lucius Linnaeus, 1758) in the brackish lagoons of the southern Baltic Sea
TL;DR: Using twelve microsatellite markers, the authors analyzed the genetic structure of 407 Baltic Sea pike collected from ten locations in the coastal zone of the southern Baltic region and adjacent rivers and nearby lakes.
Journal ArticleDOI
Intra-population variation in reproductive timing covaries with thermal plasticity of offspring performance in perch Perca fluviatilis.
TL;DR: In this paper, the authors investigated whether differences in breeding time were associated with changes in hatching success, reproductive allocation and reaction norms linking offspring performance to temperature within an anadromous Baltic Sea population of perch Perca fluviatilis.
References
More filters
Journal Article
R: A language and environment for statistical computing.
TL;DR: Copyright (©) 1999–2012 R Foundation for Statistical Computing; permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and permission notice are preserved on all copies.
Journal ArticleDOI
A globally coherent fingerprint of climate change impacts across natural systems
Camille Parmesan,Gary W. Yohe +1 more
TL;DR: A diagnostic fingerprint of temporal and spatial ‘sign-switching’ responses uniquely predicted by twentieth century climate trends is defined and generates ‘very high confidence’ (as laid down by the IPCC) that climate change is already affecting living systems.
Journal ArticleDOI
Global biodiversity scenarios for the year 2100.
Osvaldo E. Sala,F. S. Chapin,Juan J. Armesto,Eric L. Berlow,Janine Bloomfield,Rodolfo Dirzo,E Huber-Sanwald,Laura Foster Huenneke,Robert B. Jackson,Ann P. Kinzig,Rik Leemans,David M. Lodge,Harold A. Mooney,Martín Oesterheld,N L Poff,Martin T. Sykes,Brian Walker,Marilyn D. Walker,Diana H. Wall +18 more
TL;DR: This study identified a ranking of the importance of drivers of change, aranking of the biomes with respect to expected changes, and the major sources of uncertainties in projections of future biodiversity change.
Journal ArticleDOI
Extinction risk from climate change
Chris D. Thomas,Alison Cameron,Rhys E. Green,Rhys E. Green,Michel Bakkenes,Linda J. Beaumont,Yvonne C. Collingham,Barend F.N. Erasmus,Marinez Ferreira de Siqueira,Alan Grainger,Lee Hannah,Lesley Hughes,Brian Huntley,Albert S. van Jaarsveld,Guy F. Midgley,Lera Miles,Lera Miles,Miguel A. Ortega-Huerta,A. Townsend Peterson,Oliver L. Phillips,Stephen E. Williams +20 more
TL;DR: Estimates of extinction risks for sample regions that cover some 20% of the Earth's terrestrial surface show the importance of rapid implementation of technologies to decrease greenhouse gas emissions and strategies for carbon sequestration.