Essays about: "Ecological effective population size"
Found 5 essays containing the words Ecological effective population size.
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1. Evolutionary conservation analysis of sequence variants underlying ecological adaptation in Atlantic herring
University essay from Uppsala universitet/Institutionen för biologisk grundutbildningAbstract : The Atlantic herring (Clupea harengus) is a model organism for exploring the genetic basis of ecological adaptation on account of its large effective population size which greatly restrains the disturbance of genetic drift. In this project, I conducted an evolutionary conservation analysis of the Atlantic herring genome using conservation scores generated by phastCon, phyloP and GERP++ in order to study the sequence variants related to salinity or spawning-time adaptation in Atlantic herring. READ MORE
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2. Evolutionary pressures under the current fishing practices in European hake (Merluccius merluccius)
University essay from Lunds universitet/Examensarbeten i biologiAbstract : Abstract There is a rising concern involving the impact of modern fisheries on the dynamics and viability of the exploited fish populations. The increasing fishing pressure has been recorded to cause declines in age and size at maturation in variety of marine fish species. READ MORE
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3. Ecologically viable population sizes: Determining factors
University essay from Institutionen för fysik, kemi och biologiAbstract : The minimum ecologically viable population size (MEVP) of a species describes the minimum size at which the species itself or another species in the same ecosystem goes extinct as a result of the loss of inter-specific interactions. The MEVP shows a good potential for use as a tool for exploring the mechanisms behind species extinctions, but presently only a small amount of research has been done that takes advantage of this. READ MORE
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4. Minimum Ecologically Viable Populations : Risk assessment from a multispecies perspective
University essay from Institutionen för fysik, kemi och biologiAbstract : The extinction risk of threatened species has traditionally been assessed by the use of tools of Population Viability Analysis (PVA). Species interactions, however, have seldom been accounted for in PVA:s. The omission of species interactions in risk assessments may further lead to serious mistakes when setting target sizes of populations. READ MORE
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5. Population genetic structure and connectivity of the abundant sea urchin, Diadema setosum around Unguja island (Zanzibar).
University essay from Institutionen för livsvetenskaperAbstract : The distribution and abundance of many coral reef organisms are affected by their predator’s distribution and abundance. Loss of predators may cause a shift in species compositions that will cascade down to other ecological processes on the reef. READ MORE
