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

Explain the factors that affect the distribution of plant and animal species

Extracts from this document...


Explain the factors that affect the distribution of plant and animal species. Using examples from the living world Different species of plants and animals require different factors in order for it to survive. Positive factors could encourage the growth of different species, hence alter the distribution as species struggle to survive, vice versa negative factors would decrease the growth of species in the area. Species of plants possesses characteristics that allow it to survive in certain conditions. This is why the distributions of plants vary from one area to another. Each species must be able to successfully capture these resources and use them to acquire energy and biomass for growth and reproduction. Yet resources are limited in natural environments, so plants face selective pressure for growth performance without excessive use of resources One of the factors that affect the distribution of plants is temperature. Most species of plant live in moderate temperature zones (around 35�C) is due to the fact that the enzymes, biological catalyst which speed up reaction in plant cells work at the best rate in an optimum temperature. As temperature increases the more energy enzymes have to move around and speed up reaction but up to a certain temperature. ...read more.


Plants that cannot withstand alkaline soil the leaves will have brown or black margins on them before they lose their leaves. The availability of mineral and nutrients in soil is affects distribution of plants. For example, plants that require a large amount of K+ will not survive if there's not enough potassium available. Salinity has an affect on the absorption through osmosis. High salinity causes plants to lose water through osmosis. Halopohytes live in high salinity. Salinity reduces achene germination and corm sprouting in Scirpus maritimus and S. robustus.4 High salinity also reduces overall growth rate, height and diameter, root development, number of leaves, and other growth measures Mangrove trees are distributed in high salinity area such as coastal areas and able to survive due to its ability to get rid of excess salts. Wind influences the rate of transpiration, or pull of water and minerals as well as seed and pollen dispersal. For example Bog Labrador tea is distributed throughout Alaska, Canada, and Greenland areas of strong cold winds. Leaves which are smooth on the upper side, with rusty hairs underneath enables the plant to limit transpiration rate. The distribution of plants would be influence by animal in terms of seed and pollen dispersal. ...read more.


High animal diversity is once again found in the rain forest. Animal such Black-billed and Yellow-billed Cuckoos are found in areas where there is a large population of gypsy moths. 8 Some animals are territorial and need large areas for feeding, mating, and protecting their young. Some are territorial during breeding season and occupy areas to prevent others from approaching them. There is high animal distribution where there is room to occupy territory and defend against other members of the species. For example, male mudskippers occupy mud ponds to attract mating partners and would be in competition with another male mudskipper if it invades its territory. Predators would also influence the distribution of species. For example, if there's a high number of a population of tigers in an area, there would be less distribution of deer in the same area. Competition is also another factor that affects the distribution of animal species. Interspecific competition occurs when two or more species are competing for the same resource. The outcome might force one species to migrate to another area. 1 David Ellsworth 2 David Ellsworth http://www-personal.umich.edu/~ellswor/About_Phys-Ecol.html 3 Communication and Educational Technology Services, University of Minnesota Extension Service. 4 Harold A. Kantrud National Biological Service, Northern Prairie Science Center 5 http://www.shef.ac.uk/ 6 Jerry Cates, EntomoBiotics Inc. 7 http://www.whalecenter.org/species.htm 8 ?? ?? ?? ?? Arisara 12J 1 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Living Things in their Environment 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 GCSE Living Things in their Environment essays

  1. Marked by a teacher

    Research question - Is using dogs for work ethical?

    5 star(s)

    4 out of 5 people in my questionnaire believe that animal testing is appropriate, whilst the other does not. I believe that most of the people I questioned said that animal testing was appropriate because of the medicines we have now- they wouldn't have been established if it wasn't for animal testing.

  2. Marked by a teacher

    In this experiment, mung bean seedlings and Brine shrimp eggs were used to study ...

    4 star(s)

    When they are added to water, they will hatch into shrimp nauplii within a few hours (http://seagrant.gso.uri.edu). Besides that, they are easily available at any pet display. Due to its short life span of one year, they are invaluable in scientific research, including space experiments (http://en.wikipedia.org).

  1. Marked by a teacher

    Biology- enzyme coursework

    4 star(s)

    Straight after this, start the stop clock and drop one drop of the mixture into the first depression of the spotting tile. 7. Leave the stop clock running and every 30 seconds, drop one drop of the starch/amylase solution into successive depressions of the spotting tile.

  2. Investigating Seed Germination. Hypothesis If there is water, oxygen and a suitable ...

    If the temperature is too low or too high, the enzyme activity will be too low or close to none, or the enzyme structure will be denatured, hence not able to even function at all. Therefore, it is only under all conditions that the seed can germinate.

  1. What Factors are responsible for the success of Insects?

    Holometabolous development is selectively advantageous because it results in the ecological separation of adults from young, thus avoiding intraspecific competition and allowing each stage to develop its own suite of specific survival strategies. In many insects this bizarre life cycle is adapted so as to make best use of the animal's environment.

  2. I will be answering the question: is animal testing right or wrong? To be ...

    * Millions of animals are killed for food every year; medical research is more worthy death. * Legislation protects all lab animals from cruelty or mistreatment. * There are millions of animals in the world and animal testing only tests on a fraction of that number which is done humanely.

  1. The comparison of bacterial content in a range of milks.

    I left the milk exposed to the air for a period of 16 hours at room temperature (approximately 27�c) to allow the bacteria to growth, and then carried out the pilot study using the above method-diluting the milk only once to 10x10�2 to allow a maximum spread.

  2. An investigation in the different species of plant life through bare sand and grassland ...

    The factor that I will be changing will be the site and this is moving up the dune 2m at a time (this is the distance I choose after doing my preliminary work). The way I recorded the results was in the same way for each site.

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