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5 Cards in this Set
- Front
- Back
what are some factors promoting the evolution of parental care
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1) complex, stable environment- env. with lots competition (rainforest)
2) difficult environment 3) specialized diet- like the oyster shell birds 4) preditor pressure/ infanticide |
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_____ is the number of offspring remaining to be born to the average female at age X. Reproductive value changes with age
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reproductive value
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do older females invest more in their young?
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One hypothesis says yes because she has low reproductive so there is a reason for her to sacrifice her welfare for the few kids that she can still have- parental care 6
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Do older females always invest more in offspring than younger females
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no- older mares did not invest more but investided more of energy at critical time period. Also, study showed overall older mares invested less.
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Do insects have r or s type parental care
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r type because they usually have lots of offspring and invest little in each one.
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