Get Molecular Ecology PDF

By Joanna R. Freeland, Stephen D. Petersen, Heather Kirk

ISBN-10: 0470748338

ISBN-13: 9780470748336

Molecular Ecology, 2d variation offers an available creation to the various assorted features of this topic. The e-book takes a logical and innovative method of uniting examples from quite a lot of taxonomic teams. the simple writing sort deals extensive research when making usually difficult matters comparable to inhabitants genetics and phylogenetics hugely understandable to the reader.

The first a part of the booklet introduces the basic underpinnings of molecular ecology and provides a evaluate of genetics and dialogue of the molecular markers which are most often utilized in ecological learn, and a bankruptcy dedicated to the newly rising box of ecological genomics.   the second one half the publication covers particular functions of molecular ecology, masking phylogeography, behavioural ecology and conservation genetics.

The new version presents a completely updated creation to the sector, emphasising new sorts of analyses and together with present examples and strategies while additionally conserving the information-rich, hugely readable type which set the 1st version apart.

  • Incorporates either theoretical and utilized perspectives
  • Highly available, undemanding procedure and presentation
  • Includes self-assessment actions with hypothetical circumstances in line with real species and real looking facts sets
  • Uses case experiences to put the idea in context
  • Provides insurance of inhabitants genetics, genomics, phylogeography, behavioural ecology and conservation genetics.

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Additional resources for Molecular Ecology

Example text

The mean time to shared haplotype ancestry for mtDNA genes can-be derivecTsimilarly (Avise et al. 1988), but m theory is only one-fourth as large as for autosoma! nuclear genes, the differ­ ence being attributable to a twofold effect due to the haploid transmission of mtDNA and another twofold effect due to mtDNA's normal pattern of uni­ parental transmission. The above theory assumes that times to common ancestry for allelic pairs are independent Therefore, in interpreting empirical data for any particular species against these expectations (see Chapter 61, caution must be exercised : because the history of lineage coalescence within a real population imposes a severe correlation on pairwise comparisons (Ball et al.

1992). ). In another such meta-analysis of protein electrophoretic stud­ ies, Britten (1996) concluded that "selection, including overdominance, has at most a weak effect at allozyme loci, and [this] casts some doubt on the widely held notion that heterozygosity and individual fitness are strongly correlated/' This conclusion generally echoed a sentiment expressed 20 years earlier by Selander (1976): "Notwithstanding the immense amount of effort expended in surveying (allozyme) variation ... , the sample sizes of loci are generally inadequate for satisfactory analyses ...

A harmonic mean is closer to the smaller rather than to the larger of a series of numbers being averaged, so can be much lower than most population censuses. A severe reduction in population size, called a "popula­ tion bottleneck," can greatly depress evolutionary Ne. 3. Combination o f separate sexes and fluctuating population size: If census popula- vs; tion sizes of males and females are known across multiple generations, joint The History of Interest in Genetic Variation effects of the above factors on Ne can be.

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Molecular Ecology by Joanna R. Freeland, Stephen D. Petersen, Heather Kirk

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