ENWC418 Lecture Notes - Lecture 2: Furcula, Ecosystem Engineer, Genotype

• School: University of Delaware
• Department: Entomology and Wildlife Conservation
• Course: ENWC418
• Professor: Shriver

Document Summary

Enwc418 lecture 2: characteristics: what ecological roles do birds play and why should we care about conserving birds, birds control insect populations, seed dispersal, pollinators, ecosystem engineer, scavengers: vultures. Eurasian tree sparrows: citizens prevented the birds from birds from landing, killed chicks, destroyed nest, and shot down birds in flight. Center of gravity: pelvic girdle-strengthens thorax, 4-chambered heart and are warm blooded, extensive air sacs throughout body, no urinary bladder, oviparous=lay external eggs. Last few caudal vertebrae (6) fused to form pygostyle = supports tail feathers. The new species under goes rapid divergent evolution: e(cid:454)a(cid:373)ples: dar(cid:449)i(cid:374)"s fi(cid:374)(cid:272)hes a(cid:374)d ha(cid:449)aiia(cid:374) ho(cid:374)e(cid:455)(cid:272)reepers, species from the mainland immigrant to a new island and become a new species. A population of that species moves to a new island and develops into a new species while the species on the first island split into two different species.