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BIO 320: FUNDAMENTALS OF ECOLOGY (EXAM 2)100% CORRECT.

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BIO 320: Fundamentals of Ecology

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BIO 320: Fundamentals Of Ecology

Behavioral Ecology - ANSWEROptimal foraging is an example of what field of Ecology? Behavioral Ecology - ANSWERWhat is defined as the study of the evolution and adaptive significance of animal behavior, especially social behavior? -sexual selection and mate choice -living in groups and coope...

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behavioral ecology answeroptimal foraging is an

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BIO 320: FUNDAMENTALS OF
ECOLOGY (EXAM 2)100% CORRECT.
Behavioral Ecology - ANSWEROptimal foraging is an example of what field of Ecology?

Behavioral Ecology - ANSWERWhat is defined as the study of the evolution and
adaptive significance of animal behavior, especially social behavior?

-sexual selection and mate choice
-living in groups and cooperation
-kin selection
-evolution of parental care
-migration - ANSWERWhat are the 5 major areas of interest included in the field of
behavioral ecology?

It is present in one sex only - ANSWERWhat does it mean for a trait to be SEXUALLY
DIMORPHIC?

males - ANSWERIs sexual dimorphism more common in males or females?

Sexual Selection - ANSWERWhat do we define as selection due to differential abilities
of members of one sex (usually males) to gain access to members of the opposite sex
(usually females)

-Mate competition (usually males)
-Mate choice (usually females) - ANSWERWhat two basic modes does sexual selection
operate with?

Differential parental investment - ANSWERWhy do males mostly compete and females
usually choose?

-pipefishes and seahorses
-jacanas - ANSWERWhat are some examples of species where the male is the
choosier of the two sexes when it comes to mate choice?

Mate competition - ANSWERIs it mate competition or mate choice that favors traits that
enhance competitive and fighting ability?

"Sneaky Copulators" - males will try to look like females or look inconspicuous and
sneak in matings with females - ANSWERWhat is an alternative reproductive tactic for a
male that is not big enough to compete with other males?

-to obtain better resources

, -to obtain good genes
-due to sensory biases
-sexy son/runaway sexual selection effects - ANSWERWhat are four reasons females
would be choosier when choosing a mate?

sons inherit the trait
daughters are born wanting that trait - ANSWERIn the runaway sexual selection effects
(ie sexy son) who inherits the favorable traits and who inherits the predisposition for that
trait?

Territory - ANSWERWhat is our term for any space defended (against members of
same species) for exclusive use?

-exclusive use of resources (ie no sharing) - ANSWERWhat are the benefits of
defending a territory?

-Energetic costs (displays, fights, marking)
-Risk of injury - ANSWERWhat are the costs of defending a territory?

increase - ANSWERDo the benefits of territoriality increase or decrease with increasing
territory size?

Increase - ANSWERDo the costs of territoriality increase or decrease with territory size?

-Solitary
-Permanent Social Groups
-Transient Social Groups - ANSWERWhat are the 3 types of social behavior?

Solitary - ANSWERA single individual or females with juvenile offspring interacting only
to mate is characteristic of what type of social behavior?

Permanent Social Groups - ANSWERGroups with fixed membership often composed of
relatives are displaying what type of social behavior?

Transient Social Groups - ANSWERLarge groups/herds that gather temporarily with few
long term interactions are displaying what type of social behavior?

Membership in a group for selfish reasons (ie traveling in groups so that if a lion shows
up, he'll probably eat someone else) - ANSWERWhat is the "selfish herd effect?"

-Predator Protection
-Increased Foraging Success
-Increased Reproductive Success - ANSWERWhat are the benefits of living in groups?

-Increased vigilance
-Group Defense

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