Cognitive Ecology II
150 • rya n, a k r e , a n d k i r k pat r i c k information becomes costly rather than helpful (Bernays and Wcislo 1994; M. Sul ...
Cognitive Mate Choice • 151 (iii) Many mate choice decisions are based on information received from communication signals. Commu ...
152 • rya n, a k r e , a n d k i r k pat r i c k the information they have stored. In a dynamic environment, memory of a tempora ...
F I g u r e 8. 7. The costs of mate search influence the expected fitness of a mate choice strategy. Top: Initial models of mate ...
154 • rya n, a k r e , a n d k i r k pat r i c k As mate choice research begins to address questions related to working memory, ...
Cognitive Mate Choice • 155 them to the sensory biases of females (M. Ryan 1998). On the other hand, fe- males can evolve mechan ...
9 Monogamous Brains and Alternative Tactics: Neuronal V1aR, Space Use, and Sexual Infidelity among Male Prairie Voles S t e v e ...
Monogamous Brains and Alternative Tactics • 157 9.1.1. cogn i t i v e ecol ogy a n d t h e e volu t ion of monog a m y A mating ...
158 • p h e l ps a n d o p h i r Attachment, attraction, and aggression, however, do not fully define mating tactics. Species di ...
Monogamous Brains and Alternative Tactics • 159 of mating (Winslow et al. 1993). Similarly, vasopressin antagonists block male p ...
160 • p h e l ps a n d o p h i r Fertilization rates are important but incomplete components of an animal’s fitness: differences ...
Monogamous Brains and Alternative Tactics • 161 AGD is a marker for in utero masculinization and may serve as a proxy for other ...
162 • p h e l ps a n d o p h i r 9.2.2. spac e use a n d h et e roge n eous se l ect ion One key attribute of reproductive tacti ...
Monogamous Brains and Alternative Tactics • 163 F i g u r e 9. 3. Space use among alternative male tactics. a. Mean (±SE) number ...
164 • p h e l ps a n d o p h i r phenotype contributes to the probability that a male will adopt a resident or a wanderer tactic ...
Monogamous Brains and Alternative Tactics • 165 F i g u r e 9. 4. Natural variation in V1aR expression. Autoradiograms of brains ...
166 • p h e l ps a n d o p h i r selection has cleared the standing variation in these structures. Thus, wander- ers may be maki ...
Monogamous Brains and Alternative Tactics • 167 Hayes and Chambers 2005). Interestingly, two groups of structures vary dra- mati ...
168 • p h e l ps a n d o p h i r Although V1aR in the pair-bonding circuit did not predict patterns of pa- ternity, V1aR in the ...
Monogamous Brains and Alternative Tactics • 169 in most individuals and the persistence of low PCing V1aR at lower frequen- cies ...
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