ANTH 5 Chapter Notes - Chapter 2: Italian Wall Lizard, Podarcis, Antimicrobial Resistance
Document Summary
E. g. evolution of antibiotic resistance in bacteria. Evolutionary experiment: podarcis sicula (italian wall lizard or istanbul lizard) 5 male, 5 female lizard removed from island to non-naturally occurring island. Diet: arthropods (cid:894)i(cid:374)se(cid:272)ts, spiders, et(cid:272). (cid:895) pla(cid:374)t (cid:271)ased (cid:894)esp i(cid:374) su(cid:373)(cid:373)er(cid:895) Plant foods contain a lot of cellulose (tough, fibrous) difficult to chew, indigestible by vertebrates. Changes in head anatomy to increase bite strength. Female grew larger than male did, since already bigger male jaws enlarged less than previously small jaws of females. Changes in gut anatomy that give more time/space for cellulose digestion. Cecum (part of digestive system) have fermenting chambers. Conclusion: adaptive evolutionary change can occur in relatively small # of generations.
