Biogeography

    Page 1 of 3 - About 29 Essays
  • The Importance Of Global Microbial Diversity

    of all soil parameters measured, pH most reliably predicted both bacterial community diversity and richness. Distinct bacterial communities were found to be associated with pHs across the range discovered; clusters of similar communities were found at separate sites with arid soils, acidic soils, temperate rainforests, and so on. These results were surprising, as they reinforced Becking’s notion of a global bacterial population selected for by environment, demonstrated by the environmental factor of pH acting as a clear control on soil bacterial community composition, unlike geothermal pools in which geographical distance was instead a controlling factor. It could also be concluded therefore that, at least in America, soil microbial biogeography does not follow geographical trends of larger organisms (Fierer & Jackson,…

    Words: 811 - Pages: 4
  • The Argument For Biological Evolution

    an organism is bound to happen, these changes are called biological evolution. Scientists have studied these changes and how they occur for many years, all starting with Charles Darwin on the Galapagos Islands. Darwin studied the beaks of the islands finches to see how the beaks evolved and how they affect the lifestyle of the bird. While researching, Darwin observed the passing on of better, stronger genes from the better adapted parent organisms to the offspring. The process he observed was…

    Words: 1334 - Pages: 6
  • Particle Swarm Optimification Case Study

    higher than that of the old one, the onlookers choose the new position. If the quality of solution is not improved by a predetermined number of trials (finding sources with higher nectar), then the scout bees fly to choose new source randomly abandoning the old source. 2.3.5 BIOGEOGRAPHY-BASED OPTIMIZATION (BBO) Biogeography concerns migration of species from one area to another, evolution of new species, and extinction of existing species. A habitat is any area that is geographically isolated…

    Words: 1382 - Pages: 6
  • How Did Charles Darwin Contribute To The Evolution Of Species

    Charles Darwin was a prolific and monumental figure in biology and modern science as a whole. Through his theory of evolution most of the current knowledge of biology is derived. Throughout the chapters X, XI, XII, and XIV of The Origin of Species Darwin argues that there is a mechanism that drives an evolution of species and that species inherently transform and mutate over long periods of time. Darwin argues that species have mechanisms and methods that modify them over long periods of time…

    Words: 330 - Pages: 2
  • The Significance Of Darwin's Theory Of Evolution

    Biogeography, which is a study that deals with the geographical dispersal of organisms and species, enabled Darwin to discover creatures that roughly have the same body plan despite the species’s adaption to different environments, food resources and climatic conditions. An example would include Darwin’s discovery of three similar forms of the mockingbird on different islands or the thirteen species finches during his trip to the Galapagos. Nonetheless, these “closely allied” species inhabit…

    Words: 1196 - Pages: 5
  • Gymnosperms Research Paper

    research, it would be useful to ascertain the proportion of total plants that gymnosperms account for in these environments (i.e. (Number of gymnosperms)/(Number of gymnosperms + angiosperms)) in a given area, for ease of comparability and to remove any size effects. Linking biogeography with quantitative measures of abundance can give an indication of how gymnosperms stack up against angiosperms, and the more quantitative information obtained, the greater our understanding. For example, in…

    Words: 1409 - Pages: 6
  • Essay On GE Crops

    Introduction First of all, we should talk about what is the GE crops. In wikipedia, GE crops is genetically modified crops (GMCs, GM crops, or biotech crops) are plants used in agriculture, the DNA of which has been modified using genetic engineering techniques. In most cases, the aim is to introduce a new trait to the plant which does not occur naturally in the species.(2016) Another word biodiversity could divided into two parts, Greek and Latin. Bio is biological, from Greek, means ‘of…

    Words: 810 - Pages: 4
  • Summary: The Ethics Of Extinction

    National Geographic Society and Revive & Restore. Heidari, a writer for the Chemical and Engineering News, summarizes the events of day, which was filled with speakers at the top of their field expressing their views on bringing back lost species. Those in attendance who were in favor of de-extinction says it is a moral imperative. The destruction we brought upon this world is mainly what led to these species extinction in the first place; continuing with this type of research would allow us to…

    Words: 1426 - Pages: 6
  • Summary Of Evolution Theory By Natural Selection

    and behaviour of organisms throughout their development in the lifecycle. It will then eventually influence the likelihood of an organism’s survival and reproduction. However, most prominent are the specific behavioural and physical adaptations that are the outcome of natural selection. These adaptations increase their survivability such as find for food resource and habitat, defence from predators or mating. Furthermore, evolution can make one species have a series of natural changes from arise…

    Words: 713 - Pages: 3
  • Neutral Community Theory

    Neutral community theory, also known as the unified neutral theory of biodiversity and biogeography was set-forth in literature in 2001 by Stephen Hubbell however it draws largely upon pre-established, and widely accepted, ecological theories of island biogeography (MacArthur and Wilson, 1967). The original model proposed by MacArthur and Wilson was constructed to account for variation in the composition of birds found in different sized areas as well as their relative abundance and…

    Words: 1574 - Pages: 7
  • Previous
    Page 1 2 3

Related Topics:

Popular Topics: