BIO 479 Lecture Notes - Lecture 16: Ovulation, Promiscuity, Pregnancy
22 Mar 2018
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Wednesday, march 7, (cid:401)(cid:399)(cid:400)8 9:(cid:399)(cid:399) am: aggression. Location nest, den site, other (cid:336)roosting(cid:337) Education (cid:336)predation risk, where to forage, who"s the boss(cid:337) Prl (cid:336)prolactin(cid:337), avt (cid:336)arginine vasotocin(cid:337), estrogens: egg layers. Both sexes cam provision young: fish, reptiles, birds: Females invest in egg production , incubation, brooding, feeding. Males may share, or even take over, incubation, brooding, feeding. Some male fishes and frogs brood young in their mouths (cid:336)cant eat while they do this(cid:337: mammals. Some males remain provision/protect mom and offspring. Some males provide little or no pc, and often leave: may be best for his fitness if resources can"t support female, offspring, and male, mating systems: Aromatase active in parental care centers in brains. Reductase active in aggression centers in brain. Separate sections in brain: paternal prl levels = mother prl, humans, boston study:"marriage and fatherhood are associated with lower testosteron in males, salivary t levels, unmarried highest testosterone, married w/o children, married w/ children https://umainesystem-my. sharepoint. com/:o:/r/personal/samantha_bigelow_maine_edu/_layouts/15/wopiframe. aspx?sourcedoc=%7beca8d066-db6 1/3.
