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The Dynamic Equilibrium of Populations Is Affected by a Number of Factors’

In: Science

Submitted By EmperorMC
Words 815
Pages 4
Firstly, a population is all the individuals of a particular species in a particular habitat at a particular time. The statement is referring to the change in population due to factors which can be categorised into the following:
• Biotic factors –living components of an ecosystem
• Abiotic factors-non-living components of an ecosystem e.g. rainfall
Giving example, I will describe the effects biotic and abiotic factors will have on the dynamic equilibrium of populations.
As previously defined, abiotic factors are non-living components of an ecosystem, which include temperature. For instance, the reproduction of the Leather back turtle is affected by rising temperature of the beach sand, in which it lays its eggs. This increase in temperature causes dramatic imbalances in the sex ratios of hatchlings. This will affect the dynamic equilibrium of the population as the imbalance in sex ratio could cause birth rate to decline, as individuals are unable to find a mate due to the imbalance.
Another abiotic factor is PH of soil or water. For instance, clownfish are greatly affected by a decrease in PH in ocean water (oceanic acidification). This change in PH affects their sense of smell thus impede their ability to search for the sea anemones in which they live and depend for protection from predators. This will likely lead to an increase of death rate as clownfish will be unable to find a suitable habitat and unable to hide safely from predators. Therefore showing that the PH of water can affect the population’s dynamic equilibrium.
Additionally, another type of abiotic factor is pollution. Pollution can come in many forms, such as air, water and noise pollution and affects many different animals greatly. For instance, because of the increased ship traffic and offshore oil drilling noise pollution has started affecting very large number of marine animals. Whales and...

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