• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

When one species influences another species evolutionary development it is known as Coevolution

Extracts from this document...

Introduction

´╗┐Coevolution Essay Corey Diamond Period 1 12/6/11 When one species influences another species? evolutionary development it is known as Coevolution. Coevolution is a mutually beneficial relationship between two species that enable their survival as a species or as an individual organism. The theory of coevolution was first conceived by Charles Darwin who observed a symbiotic relationship between the insects and flowers on his farm. Darwin discerned that the physical discrepancies of flowers could not have come about through self-pollination, but could have only been attained through pollination from other plants. In order to justify his theory that plants evolved and reproduced through the pollen of other plants, he explained that insects played a role in the conveyance of pollen. Darwin explained that when insects trekked to a flower for its nectar, pollen from the flower would fasten to the insects and be transported to another flower when that particular insect disembarked on it. In this way, the flower depended on the insect for reproduction and the insect depended on the flower for food. ...read more.

Middle

The ants fiercely defend the tree against ravaging insects, browsing mammals and epiphytic vines and in return, the Bullhorn Acacia supplies the Stinging Ants with protein-lipid Beltian bodies from its leaflet tips and carbohydrate-rich nectar from glands on its leaf stalk. (In this example, both the Bullhorn Acacia and the Stinging ants benefit from each other. The co-evolutionary relationship that the acacia and the ants share is called a mutual relationship where both species benefit.) Here it can be seen that the Bullhorn Acacia has evolved in a way that supplies the Stinging Ants with food. It can be assumed that Bullhorn Acacias that could produce protein-lipid Beltian and nectar more efficiently were more capable at surviving because of the Ants that occupied the Acacia for the protein and nectar. At the same time, the Stinging Ants can survive because of the sustenance they attain from the Acacia. Another example of coevolution can be seen in the relationship between the Australian Hammer Orchid and the Thynnid Wasp in Australia. ...read more.

Conclusion

In the process, the wasp transfers pollen from flower to flower. (In this example, the relationship is only beneficial to the Orchid, while wasp receives no benefits. This type of co-evolutionary relationship is called a commensal relationship where one organism benefits but the other does not). It can be seen that the Hammer Orchid evolved in a way in which it took advantage of the mating rituals of the Thynnid Wasps and thus was capable of surviving. In conclusion, the relationship between two species of organisms can have a drastic impact on the way they develop and spread. The symbiotic relationship that two organisms share change and alter them in a way that helps them survive and flourish. Those organisms that do not possess the necessary traits that help them survive die out while the ones with the beneficial traits survive. At the same time, the organisms that survive influence and stimulate the change of the organisms that depend on them and, in turn, influence the evolution of the dependent organism. Coevolution can be beneficial to both parties of organisms or beneficial to only one party of organism. However, the influence that the organisms share with each other indirectly changes stimulates the evolution of the species. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Biology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Biology essays

  1. Bilharzia. Schistosomiasis, commonly known as snail fever, bilharzia and bilharziasis, is a disease ...

    Other problems are that the adult worms are much bigger in size than the white blood cells and they can imitate their host by covering themselves with the host's molecules. Also, praziquantel is often too expensive for most infected yet underprivileged people and so, Ethiopians took advantage of a specific plant, endod, which can be used to kill snails.

  2. Measuring the diversity of plant species in an area.

    However, populous was also statistically very close, with 1.94 metres squared area. Salix had the least size within the region, measuring only 0.59 metres squared in length. However in general, the tree sizes were rather large compared to a realistic tree, which posed a weakness within the data.

  1. A Local Ecosystem, Patterns in Nature,Life on Earth,The Australian Biota ...

    Food webs often include decomposers. Food chains and food webs are useful for illustrating the trophic interactions that occur between organisms in an ecosystem, but they give no indication of the relative abundance or size of organisms. Food pyramids are models that can take account of how biomass (total mass taking up the organisms in a population)

  2. Genes of fruit fly practical write up

    Black coloured body and Ebony coloured body are the only two coloured body crosses that aren't affect by sex. i.e. a particular gender doesn't drop out that has a particular set of genes. This is probably due to the fact that this cross is more stable in that it doesn't have any diseases associated with it.

  1. Allelopathy. Open Investigation Will increasing the number of allelopathic sunflower plants effect the ...

    The actual beans grow and hang from the top of the stem. Leaves tend to grow around the bottom and middle part of the stem. When ripe, the bean will have a lumpy shape due to the peas inside the bean. The beans will fall off the stem when ripe.

  2. cell theory summary

    This process of cell replication in eukaryotes is called mitosis and in prokaryotes is called binary fission. The parental cell divides to produce identical daughter cells. * This aspect of cell theory suggests that all cells therefore have a common ancestor, the original ancestoral cell form which all other cells have arisen by descent.

  1. Genetically Modified Organisms Essay

    Aqua bounty has spent more than $50 million USD on research and experiments (Curtis, 2013). The US government has further paid $10 million USD to fund this biotechnological breakthrough and hop that is will be ready for retail sale in the space of a few years.

  2. Biology Internal Assessment - investigate whether the Window and Notching caterpillar share the same ...

    Because of this our validity and reliability would have been significantly affected. If we were to conduct this experiment again I would buy a stock type 09 cabbage tree from the website below: http://www.southernwoods.co.nz/cart/prices.asp?lmcommon=Cabbage+Tree&Species_Latin=Cordyline&Name_Latin=australis&Name_Common=Ti%20Kouka. I would then isolate this plant in a greenhouse this would mean there was no other

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work