Now showing items 161-170 of 489
Genetic introgression of farmed salmon in native populations: quantifying the relative influence of population size and frequency of escapees
Farmed escapees may threaten the genetic integrity of native salmon populations through interbreeding. However, introgression requires survival until maturation, successful reproduction and successful early development. ...
Foraging ecology and learning. Adaptive behavioural strategies and the value of information
(The University of Bergen, 2006-12-12)
All animals face the challenge of acquiring resources for growth, survival, and reproduction. In environments that vary in time and space, foragers need to make apparently complex foraging decisions on which prey to ...
Rapid and reliable cloning of PCR products
(Cold Spring Harbor Laboratory Press, 1991-08-08)
Multi-proxy studies in palaeolimnology
Multi-proxy studies are becoming increasingly common in palaeolimnology. Eight basic requirements and challenges for a multi-proxy study are outlined in this essay – definition of research questions, leadership, site ...
Effect of uneven sampling along an environmental gradient on transfer-function performance
We investigate the effect that uneven sampling of the environmental gradient has on transfer-function performance using simulated community data. We find that cross-validated estimates of the root mean squared error ...
The emotion system promotes diversity and evolvability
(Royal Society Publishing, 2014-08-06)
Studies on the relationship between the optimal phenotype and its environment have had limited focus on genotype-to-phenotype pathways and their evolutionary consequences. Here, we study how multi-layered trait architecture ...
Characterization of the 18s rRNA gene for designing universal eukaryote specific primers
High throughput sequencing technology has great promise for biodiversity studies. However, an underlying assumption is that the primers used in these studies are universal for the prokaryotic or eukaryotic groups of ...
The environmental impact of the Minoan eruption of Santorini (Thera): statistical analysis of palaeoecological data from Golbisar, southwest Turkey
A tephra layer originating from the mid-second millennium BC (3300 14C yr BP) ‘Minoan’ eruption of Santorini (or Thera) in the Aegean has been found in lake sediments at G6lhisar in southwest Turkey. Microstratigraphic ...
Microbial communities and processes in ice-covered Arctic waters of the northwestern Fram Strait (75 to 80° N) during the vernal pre-bloom phase
Marine microbial communities have been little studied in Arctic waters, especially during the winter–spring transition before the development of extensive phytoplankton blooms. This study investigated microbial plankton ...
Response to comment on “Dispersal limitations matter for microbial morphospecies”
(American Association for the Advancement of Science, 2007)
Pither argues that the relationship we found between regional species-richness maxima and modal lake-pH is expected because both values are constrained by the regional pH range and therefore cannot be interpreted as a ...