Lecture 1 Flashcards
What is a typical parasite?
- Can be transmitted w/o host death
- Host can still reproduce
What is a trophically transmitted parasite?
- transmission requires host death
- parasite rarely kils host directly
Parasitic castrator?
typical or trophically-transmitted parasite that castrate its host
Parasitoid?
- transmission requires parasite to kill host directly
Obligate parasite
must be parasitic at some point
Facultative parasite
can choose if it is going to be parasitic or free-living
Endoparasite
lives inside host
Ectoparasite
lives outside host
Intermediate host
required host for larval parasite to develop to next stage
Definitive host
required for development of adult parasite
Vector
- blood-feeding invertebrate host
- can be intermediate or definitive host
Direct life cycle
one host only
Indirect/complex life cycle
- 2 or more hosts needed, but only one of those is the definitive host
Prevalence
Proportion of hosts examined that are infected
Abundance
- Number of parasites per host that was examined