parasitism Flashcards
Ecological niche?
multi-dimensional summary of tolerances and requirements of a
species
Fundamental vs Realised Niche
F.N- Absence of Interspecific competition
R.N- In response to Interspecific Competition
Two outcomes of Interspecific Competition.
Competitive Exclusion- Local extinction (due to Niches being too similar)
Resource Partitioning- Coexistence
Higher in a parasite than its host
Reproductive Potential
Do parasites have Wide or narrow niches
Narrow as they are host-specific
Term used to describe when the host provides so many of the parasites needs that it lacks structures such as organs?
Degenerate
Endo vs Ecto
Inside, Outside
Malaria is caused by…
Plasmodium
What do Schistosomes cause
Schitsosomiasis
Virus vs Parasite
V- Can only replicate inside host cell
3 Virus structure facts
Viruses contain genetic material in the form of DNA or RNA, packaged in a protective protein coat
Some viruses are surrounded by a phospholipid membrane derived from host cell materials
The outer surface of a virus contains antigens that a host cell may or may not be able to detect as foreign
4 stages of Virus life cycle
infection of host cell with genetic material
host cell enzymes replicate viral genome
transcription of viral genes and translation of viral proteins
assembly and release of new viral particles (bursting)
Virus vs RNA Retrovirus
R.V uses Reverse Transcriptase to create DNA
Transmission vs Virulence
T- Spread of parasites to hosts… Like butter (how spreadable is it)
V- Harm caused to a host species by a parasite
Extended Phenotype=
Modified Host Behavior