Male and female ruffed grouse look similar, except during courtship when the males raise their neck feathers and fan out their tails to create a visual display (Figure 2). These grouse spend much of their time on the ground. How might natural selection have favoured this particular adaptation? A Figure 2 Male ruffed grouse in courtship display

Male and female ruffed grouse look similar, except during courtship when the males raise their neck feathers and fan out their tails to create a visual display (Figure 2). These grouse spend much of their time on the ground. How might natural selection have favoured this particular adaptation? A Figure 2 Male ruffed grouse in courtship display

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter56: Ecology And The Geography Of Life

Section: Chapter Questions

Problem 16TYU: EVOLUTION LINK When a black-tailed prairie dog or other small animal dies, other prairie dogs bury...

See similar textbooks

Similar questions

Many species of animals make alarm calls, which warn others in their group that a predator is approaching. Alarm calls also attract the atten- tion of the predator, making it more likely that the individual making the call will be eaten. Why might natural selection favor the evolution of alarm calls in a species? How might you test that hypothesis?
The digger bee’s “postcopulatory courtship” consists of elaborate tactile stimulation that the male provides his partner after she has accepted his sperm. Why is this behavior a Darwinian puzzle, and what might its adaptive value be? Dont' write from any online source.
Which mating strategy (residence pattern) do only orangutans and some strepsirhines use? aPolyandrous bSolitary cPolygynous dMulti-mail, multi-female
. SCIENTIFIC INQUIRY Scientists studying scrub jays found that“helpers” often assist mated pairs of birds by gathering food fortheir offspring.(A) Propose a hypothesis to explain what advantage theremight be for the helpers to engage in this behavior insteadof seeking their own territories and mates.(B) Explain how you would test your hypothesis. If it is correct,what results would you expect your tests to yield?
Competition is most intense between members of a(n)_______ . Predators and their prey act as agents of__________ on one another, resulting in a formof evolution called______ . This results in the evolution of characteristics called______ that help both predators and their prey survive andreproduce.
Many species of animals make alarm calls, whichwarn others in their group that a predator isapproaching. Alarm calls also attract the attention of the predator, making it more likely thatthe individual making the call will be eaten. Whymight natural selection favor the evolution ofalarm calls in a species? How might you test thathypothesis?
Prey animals may use distraction displays when a predator is nearby.What selective pressures do these prey animals exert on predators?Explain why distraction displays may become more convincingthrough evolutionary time.
EVOLUTION CONNECTION We often explain our behaviorin terms of subjective feelings, motives, or reasons, butevolutionary explanations are based on reproductive fitness.Discuss the relationship between the two kinds of explanation.For instance, is an explanation for behavior such as “falling inlove” incompatible with an evolutionary explanation?
Ancestors of the beach mouse mayhave exhibited variations in their coat color. Because of the prevalence of visualpredators, the better-camouflaged (lighter) mice in the beach habitat may havesurvived longer and been able to produce more offspring. Over time, a higher andhigher proportion of individuals in the population would have had the adaptation of lighter fur that acted to camouflage the mouse in the beach habitat.
The evolution of beak size in the various species of Galpagos finches is associated with their (a) songs (b) diets (c) body sizes (d) predators (e) none of the preceding
EVOLUTION LINK When a black-tailed prairie dog or other small animal dies, other prairie dogs bury it. Develop a hypothesis to explain how this behavior may be adaptive. How would you test this hypothesis?
The rough-skinned newt, which lives in western North America, stores a poison in its skin and is avoided by predators. However, several populations of garter snakes have undergone one or a few mutations that enablethem to tolerate the toxin, and these snakes eat the newts with no ill effects. How has natural selection affected this predator–prey relationship? Based on what you have learned about evolutionary arms races, predict what may happen to the newts and the poison-resistant garter snakes over time.