Plantlet The Blogging Platform of Department of Botany, University of Dhaka
This series includes the difference table between
- Habitat and Niche
- Autochthonous and Allochthonous
- Neuston and Pleuston
- Extremophile and Extremozyme
| Habitat | Niche |
| A habitat is an ecological or and environmental area that is inhabited by a particular animal, plant or other types of organisms. | A niche is a term describing the role and position of a species in its environment. |
| Habitat is made up of physiological factors and biotic factors. | A niche is introduced all interactions with the biotic and abiotic factors. |
| It is mainly a geographical area with different kinds of organisms. | It mainly describes how an organism meets all physiological needs. |
| It is emphasized on ecological area. | It emphasizes on the function of an organism. |
| The concept of habitat is more easier than niche. | The study or concept of niche is more difficult. |
| A niche doesn’t has components. | Habitat has a number of niches. |
| Autochthonous | Allochthonous |
| Autochthonous microorganisms are permanent members of a given ecosystem. | Allochthonous microorganisms are foreign members of a given ecosystem. |
| Capable of survive, grow in a given ecosystem. | Can not grow in the given ecosystem. |
| They are not transient members. | They are transient members. |
| Organisms don’t show wide variety. | Organisms show a great variation. |
| They occupy the functional niche available to the microbial population in a given ecosystem. | They do not occupy the functional niche. |
| Neuston | Pleuston |
| The uppermost layer of hydrosphere. | The uppermost layer of marine ecosphere. |
| It is the surface microlayer between hydrosphere and atmosphere. | It is the surface microlayer between marine ecosphere and atmosphere. |
| Extremophile | Extremozyme |
| Organisms that thrives in extreme environment. | Certain type of enzyme derived from an extremophile. |
| Found normally near the rocks near the hydrothermal vents. | Synthesized inside extremophile. |
| Already there structure are highly studied. | Study is still undergoing on these enzyme. |
| This term frequently refers to prokaryotes. | This simply means complex type of enzyme. |
| Example:Pyrolobus fumarii, Pyrococcus furiosus, Clostridium paradoxum etc. | Example: Thermophilic esterase, Thermophilic lipase etc. |
