Most Swiss starlings produce four to five eggs in each clutch. Starlings producing more than this have reduced fitness. Which of the following statements best explains this situation? O The starling parents do not care for their young, reducing their fitness. O The ecosystem can only support two offspring, reducing the fitness of both populations. O The population of starlings have limited resources to care for their young. O The starlings have fewer habitat options and fewer offspring, reducing their fitness.

Most Swiss starlings produce four to five eggs in each clutch. Starlings producing more than this have reduced fitness. Which of the following statements best explains this situation? O The starling parents do not care for their young, reducing their fitness. O The ecosystem can only support two offspring, reducing the fitness of both populations. O The population of starlings have limited resources to care for their young. O The starlings have fewer habitat options and fewer offspring, reducing their fitness.

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter16: Population Ecology

Section: Chapter Questions

Problem 1DID

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Humans often kill rattlesnakes that they encounter. Rattlesnake populations close to human habitation thus experience higher adult mortality rates. As Dr. Beck has found in his research on Northern Pacific Rattlesnakes in Washington state, these populations tend to evolve a shift toward more "r-selected" life-history strategies, such as (select all that apply): Smaller size at first reproduction. Early age at first reproduction. O More extensive parental care. O A few large offspring per reproductive event. Lots of small offspring per reproductive event.
A population of 1,492 finches is introduced to a rainforest. Over the next year, the finches showa death rate of 0.395 while the population drops to 1,134. What's the birth rate for this population? Is this proving to be a suitable habitat? (Two answers) O Yes, this is a suitable habitat. The birth rate is higher than the death rate. D No, this is not a suitable habitat. The birth rate is much lower than the death rate. 589 -358 a 0.155 O 0.845 Which of the following is true of a population approaching its carrying capacity? O The population's rate of increase approaches zero. ロロロロロ □
A breeding pair of birds receives help raising their young from an unrelated male bird. This behavior is termed cooperative breeding and in some ways this seems like an evolutionary paradox since helpers seem to be acting in ways that increase the fitness of others at their own cost. .How might providing this assistance improve the fitness of the unrelated male bird? Increasing the fitness of the unrelated offspring directly increases the unrelated bird's fitness O The cooperative relationship helps the unrelated male survive until he can find a mate and produce offspring of his own Rearing unrelated offspring delays sexual maturity in the helper bird so he has fewer offspring over the course of his life. Because he does not ever produce offspring of his own, the helper bird has a longer and healthier life.
In exploitative interactions, one species gains a fitness advantage at the cost of another species. Which of the following is an example of exploitation? O A squirrel uses a hole in a tree as shelter A large grouper fish is cleaned of parasites by a cleaner shrimp O A millipede feeds on dead fragments of plants and animal feces OA dragonfly kills and eats a beetle Algae grows inside the tissue of a coral and produces nutrients for both
Which of the following would be a consequence of humans over-hunting rhinos? O The deer population would decrease O The lion population would have less food available to them O The tree population would decrease O The vultures (large birds) would have no food
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What factors play a role in determining the range (area) in which a particular species lives? Choose All That Apply O the capacity to acclimate to climatic conditions the ability to find food and avoid being eaten the location of patches of resources within the geographic area the ability to find mates the underlying genetic variability of a particular population
A wetland is filled in in order to build some beachfront properties. This wetland was a stopping point for migratory birds along their migration (not an ultimate destination). What is a likely outcome of this scenario? The birds may experience fatigue/weakness/hunger from a lack of a resting point, which could have negative fitness consequences The birds will adjust their ultimate destination closer to make up for the missing "rest stop" The birds will be unaffected and simply go to the next wetland they encounter The birds will simply rest in the same area, just on buildings instead of in a natural habitat
A population of 1,492 finches is introduced to a rainforest. Over the next year, the finches show a death rate of 0.395 while the population drops to 1,134. What's the birth rate for this population? Is this proving to be a suitable habitat? (Two answers) * Yes, this is a suitable habitat. The birth rate is higher than the death rate. No, this is not a suitable habitat. The birth rate is much lower then the death rate. 589 -358 0.155 0.845 Which of the following is true of a population approaching its carrying capacity? The population's rate of increase approaches zero. ロロロ□
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The way an individual's energy is divided among growth, maintenance, and reproduction is controlled by the species' genes and is shaped by natural selection. Different species divide their energy in different ways, but the way energy is divided results in the greatest given the species' niche. O body size o individual survival o lifetime reproductive success