Chapter 31

Speciation and Diversity

What is a Species?
A species is most simply defined as a group of organisms that interbreed and can produce fertile offspring. Typically, individuals of the same…
Formation of Species
31.2: Formation of Species
Speciation is a term used to describe the evolution of one or more new species from one original species, or sometimes more than one. The resulting…
Speciation Rates
31.3: Speciation Rates
The process of speciation is generally a transition over a long period of evolutionary time. During this time the species may be isolated or continue…
Karyotyping
31.4: Karyotyping
Cytogenetics is the field of study devoted to chromosomes and involves the direct observation of a cell’s chromosomal number and structure,…
Engineering: Speciation and Bioavailability Measurements of Environmental Plutonium Using Diffusion in Thin Films
31.5: Engineering: Speciation and Bioavailability Measurements of Environmental Plutonium Using Diffusion in Thin Films
Plutonium is an alpha-particle emitter with a long half-life and uptake in aquatic ecosystems and exposure to living beings is a concern. This…
Biology: A Multi-detection Assay for Malaria Transmitting Mosquitoes
31.6: Biology: A Multi-detection Assay for Malaria Transmitting Mosquitoes
Malaria transmitting mosquitoes have a number of epidemiologically important characteristics that can only be detected using molecular…
Environment: Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations
31.7: Environment: Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations
Many factors shape the overall development of the landscape in a stable ecosystem. This protocol demonstrates an excavation method for…