ENWC314 Lecture Notes - Lecture 13: Interspecific Competition, Bumblebee, Intraspecific Competition

• School: University of Delaware
• Department: Entomology and Wildlife Conservation
• Course: ENWC314
• Professor: York Joanna

Document Summary

Competition: competition is the attempt by two different individuals (or species) to utilize the same limited resource: Release of antibiotics, territorial behavior; there are winners/ losers. Direct use of a resource that reduces its availability to others; no winners/ losers. Intraspecific competition: competition between members of the same species, becomes more important at higher population density. More individuals=more competition: adults and juveniles rarely compete. No competitive advantage: mai(cid:374)tai(cid:374)s populatio(cid:374)s at e(cid:374)viro(cid:374)(cid:373)e(cid:374)t"s (cid:272)arryi(cid:374)g (cid:272)apa(cid:272)ity (k) Removed balanus from quadrats to see impact on chthamalus. Balanus can cover, lift, crush chthmalus- hence loss in the competition. Muscles in rocky intertidal zone for chthamalus: space provides for food and release of gametes. Intraspecific competition: within species competition, cannibalism in corn earworm (competitor not related) Only one larva succeeds in a gallery. 2+ species: two species using same resource, becomes competitive when that resource is limiting rocky intertidal, orga(cid:374)is(cid:373)s are sessile (cid:894)do(cid:374)"t (cid:373)ove(cid:895)