fbpx

🦟 Parasitism (Scottish Advanced Higher)

Parasite niches

 

Parasites are symbiotic species that rely on their host for nutrients, like predators rely on prey. This is at the expense of the host, which often suffers illness as a result, or a damaged reproductive function. Unlike predators that have a lower reproductive capacity compared to their prey, parasites have a higher reproductive potential than their host.

 

An ecological niche is the set of tolerances and requirements a species has in its immediate living space. For example, birds make use of a tree’s branches to house nests, while fungi make use of a tree’s trunk to grow. The same habitat can have many different niches that can be populated by different species.

 

Parasites have very narrow niches because they are specific to their host. Human head lice cannot survive anywhere except the human scalp. This also means that the molecular processes that parasites rely on in their host are very similar and overlap with those of the host – one reason developing effective treatments against them is challenging. This interdependence means that some processes carried out by the host on behalf of its parasite renders the parasite degenerate i.e. unable to fulfil them by itself, and lacking in structures and…

πŸ† Read 500+ topics for all 6 UK exam boards πŸ†

πŸ“ Enter now to claim your FREE 3-day trial and find answers to all your revision topicsΒ πŸ“
βœ”οΈ Just Β£3.49/month after thatΒ βœ”οΈ Scholarships & teacher plans availableΒ βœ”οΈΒ Cancel anytime

You explain everything so simply!Β πŸ™‚Β -SecretDuck on The Student Room
Just a huge thank you for spending your time helping others. I love your site and I’m seriously very grateful. No word of a lie -Neuron13 on The Student Room
Thank you for making all the content btw!Β -Serena Kutty on YouTube
Good topic notes and cool videos. I’ll definitely recommend it to my students.Β -Seema Sehgal (AQA Examiner and Biology Teacher) on LinkedIn