/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 2 Which of the following statement... [FREE SOLUTION] | 91Ó°ÊÓ

91Ó°ÊÓ

Which of the following statements can be made about the mark and recapture method of counting population numbers? a. Using quadrats for counting individuals in a population increases the accuracy of the mark and recapture method. b. The greater the number of individuals captured during the first round of mark and recapture, the greater is the overall population size. c. The mark and recapture method is useful for mammals and birds, but of little use for other organisms. d. An underestimate of population size would tend to be observed in cases of studies involving animals that learn to seek out bait.

Short Answer

Expert verified
d. An underestimate of population size would tend to be observed in cases of studies involving animals that learn to seek out bait.

Step by step solution

01

- Understand the statements

Read each statement carefully and analyze what it says about the mark and recapture method.
02

- Analyze statement a

Statement a suggests that using quadrats increases accuracy. Understand that quadrats are a method of sampling and are not related to mark and recapture for large-scale moving populations. Thus, statement a is incorrect.
03

- Analyze statement b

Statement b claims that more individuals captured in the first round means a greater overall population size. This is incorrect since the initial capture number alone doesn't determine the population size.
04

- Analyze statement c

Statement c states that mark and recapture is useful for mammals and birds but not for other organisms. The technique can actually be useful for various organisms including fish and insects, so it's not limited to mammals and birds.
05

- Analyze statement d

Statement d suggests that an underestimate is likely if animals learn to seek out bait. This makes sense because such behavior would cause recaptured samples to be disproportionately marked, leading to an underestimated population size.
06

- Conclusion

From the analysis, identify the correct statement about the mark and recapture method.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91Ó°ÊÓ!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

population estimation
Population estimation is crucial for understanding the dynamics of animal species within a particular area. One effective method for estimating populations is the mark and recapture technique. This involves capturing a group of animals, marking them in a harmless way, and then releasing them back into their habitat. Over time, another sample is captured and the number of marked versus unmarked animals is recorded. This ratio provides insight into the overall population size using the formula \( \text{Estimated Population Size} = \frac{(\text{Number of Marked Individuals} \times \text{Total Recaptured})}{\text{Number of Marked Recaptured}} \).
wildlife management
Wildlife management is essential for maintaining balanced ecosystems. Estimating the population of species using the mark and recapture method informs scientists and conservationists about the health and size of animal populations. This information can lead to better management practices, such as breeding programs or habitat protection. For instance, if the population of a particular species is declining, steps can be taken to protect it from poachers or habitat destruction. Furthermore, understanding population dynamics helps in making decisions about hunting quotas and conservation strategies that ensure sustainable wildlife populations.
sampling methods
Sampling methods are techniques used to study populations without examining every single individual. Mark and recapture is a common sampling method used for mobile animal populations. Key aspects of this method include:
- **Capture:** Animals are captured in a humane manner.
- **Mark:** Each captured individual is marked in a way that does not harm them, often with tags or non-toxic dyes.
- **Release:** Marked animals are released back into the wild.
- **Recapture:** After some time, another capture session is conducted to see how many marked versus unmarked animals are in the new sample.
These steps help researchers estimate a population size and understand movement patterns, survival rates, and behavior of species.
animal behavior
Animal behavior plays a significant role in the mark and recapture method, and understanding it can enhance the accuracy of population estimates. For instance, animals may learn to avoid traps after their initial capture, leading to an underestimate of the population size. Conversely, animals attracted to bait used for captures might be overrepresented in recapture efforts. Taking into account such behaviors when designing a study can minimize bias. It's also essential to consider the social structures and movement patterns of the species under study, as these factors can impact capture rates and overall data reliability.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Describe Pavlov’s dog experiments as an example of classical conditioning. a. Pavlov demonstrated classical conditioning through a maze running experiment with the dog. The motivation for the dog to work its way through the maze was a piece of food at the end of the maze. The dog ran in one trial per day and had food available at the end of the run. b. Pavlov hung a chicken piece in a cage too high for the dog to reach and several boxes were placed randomly on the floor. Eventually the dog was able to stack the boxes and climb on top to get the chicken piece through classical conditioning. c. Pavlov put a dog in a large box that contained a lever that would dispense food to the dog when pressed. While initially the dog would push the lever a few times by accident, it eventually associated pushing the lever with getting the food through classical conditioning. d. Pavlov sounded a bell whenever food was presented to a dog, which produced saliva in response to the sight or smell of the food. Through classical conditioning, the dog started responding to the bell ringing with salivation as the dog came to associate the bell sound with the arrival of food.

A honey bee colony contains one queen, hundreds of drones, and many thousands of worker bees. The queen produces eggs, the drones produce sperm, and the workers are sterile. Explain how the reproductive strategy of honey bees benefits the survival of the species. (credit: Food and Agriculture Organization of the United Nations) a. The fertile queen and drones produce many offspring while sterile worker bees do not benefit the survival of the species. b. Worker bees produce many offspring while the sterile queen and drones do not benefit the survival of the species. c. The sterile queen and drones use the energy taken in by them for their own growth, growth and maintenance of the hive, and protection and nurturing of offspring. d. Sterile worker bees use the energy taken in by them for their own growth, growth and maintenance of the hive, and protection and nurturing of offspring.

Explain which features of a logistic growth curve are the same for every population exhibiting logistic growth and which features might vary from one population to another. a. The overall S-shape would be the same for all populations. The actual x-y values on the graphs, population numbers corresponding to starting populations, and the ending carrying capacities could differ. b. The overall carrying capacities would be the same for all populations. The actual x-y values on the graph and population numbers corresponding to the starting populations could differ. c. The overall S-shape would be the same for all populations showing logistic growth. The only factor that could differ is the actual x-y values on the graphs indicating the time frames for the growth curves. d. The x-y values on the graphs indicating the time frames for the growth curves would be the same. Overall S shape and population numbers corresponding to the starting populations could differ.

A company wants to establish suspended cultures of mussels in a natural estuary from which they can farm mussels in a sustainable enterprise. The suspended cultures would keep the mussels contained for easy capture, but would allow free flow of estuary waters in and out of the cultures. The company wants to know the maximum number of mussels they can farm each month and maintain a sustainable system. A biologist has suggested that the limiting factor for mussels is the amount of phytoplankton that the mussels feed on. Identify data that could best be used to either justify or refute this suggestion. a. rates of growth of newly established mussel cultures in a lab under different phytoplankton concentrations b. phytoplankton population changes in the estuary as a function of intensity and duration of sunlight exposure c. biomasses of natural mussel populations and phytoplankton populations in the estuary determined at many different times d. lab measurements of phytoplankton biomass in response to added mussel population numbers

Describe phototaxis. a. Phototaxis is the directed movement of an organism in response to gravity. b. Phototaxis is the long-range movement of an organism in response to a change in season. c. Phototaxis is the movement of an organism in search of food. d. Phototaxis is the directed movement of an organism in response to light

See all solutions

Recommended explanations on Biology Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.