Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Question
Chapter 37, Problem 4WIO
Summary Introduction
To analyze:
The specific strategies a conservation biologist might use to raise the birth rate of the population and how reducing the population’s death rate aid in a conservation effort.
Introduction:
The total number of live births per 1,000 individuals in a population is referred to as the birth rate. The annual sum of deaths per 1,000 individuals in a population is referred to as the mortality rate. A population is considered to be expanding if the ratio of births to deaths is greater than the opposite, but a population is said to be shrinking if the ratio of births to deaths is higher.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
What do restocking programs for wild animals involve?
Pick one of the following answers:
Releasing individuals into an existing population to increase the size of the population and the diversity of its gene pool
Releasing wild-collected individuals into a new site
Releasing captive-bred individuals into a new site
Releasing captive-bred or wild-collected individuals into an ecologically suitable site within their historical ranges where the species no longer occurs
For each organism, create a survivorship curve by plotting the given information in a line graph. Title each graph "Survivorship Curve for [name of organism]." The y-axis should be labeled "Survivorship" and contain low, medium, and high indicators. The x-axis should be labeled "Life Span" and contain young, middle-aged, and old indicators.
American toads practice explosive reproduction. During the first warm days in spring, both males and females migrate from forests and converge on ponds. Reproduction is quick, taking only a few days. Females lay hundreds of eggs in jelly-filled sacks along the sides of the pond or stream. As soon as the eggs are laid, males and females abruptly leave the pond. Even before they hatch, the offspring are prone to high rates of predation. Many offspring die before they reach adulthood. Of the offspring that do survive, some will die in adulthood, and some will live their entire natural life span.
What do restocking programs for wild animals involve?
Pick the correct following statement number:
1. Releasing individuals into an existing population to increase the size of the population and the diversity of its gene pool
2. Releasing wild-collected individuals into a new site
3. Releasing captive-bred individuals into a new site
4. Releasing captive-bred or wild-collected individuals into an ecologically suitable site within their historical ranges where the species no longer occurs
Chapter 37 Solutions
Biology: Concepts and Investigations
Ch. 37.1 - Define population, community, and ecosystem.Ch. 37.1 - What is population density?Ch. 37.1 - Distinguish among the types of distribution in a...Ch. 37.1 - Prob. 4MCCh. 37.2 - Prob. 1MCCh. 37.2 - Prob. 2MCCh. 37.2 - Prob. 3MCCh. 37.2 - Prob. 4MCCh. 37.3 - Prob. 1MCCh. 37.3 - Prob. 2MC
Ch. 37.3 - Prob. 3MCCh. 37.3 - Prob. 4MCCh. 37.3 - Prob. 5MCCh. 37.4 - Prob. 1MCCh. 37.4 - Distinguish between opportunistic and equilibrium...Ch. 37.5 - Which parts of the world have the highest and...Ch. 37.5 - How does the demographic transition reflect...Ch. 37.5 - Prob. 3MCCh. 37.5 - What are some of the environmental consequences of...Ch. 37.6 - Prob. 1MCCh. 37.6 - Prob. 2MCCh. 37 - Population size increases when a. the sum of birth...Ch. 37 - Prob. 2MCQCh. 37 - Prob. 3MCQCh. 37 - Prob. 4MCQCh. 37 - Prob. 5MCQCh. 37 - Prob. 1WIOCh. 37 - Prob. 2WIOCh. 37 - Describe the difference between population density...Ch. 37 - Prob. 4WIOCh. 37 - Prob. 5WIOCh. 37 - Prob. 6WIOCh. 37 - Prob. 7WIOCh. 37 - Prob. 8WIOCh. 37 - Prob. 9WIOCh. 37 - Prob. 10WIOCh. 37 - Prob. 11WIOCh. 37 - A species with an opportunistic life history...Ch. 37 - 1. Review the Survey the Landscape figure in the...Ch. 37 - Prob. 2PITCh. 37 - 3. Add the following terms to this concept map:...
Knowledge Booster
Similar questions
- What do restocking programs for wild animals involve? Releasing individuals into an existing population to increase the size of the population and the diversity of its gene pool Releasing wild-collected individuals into a new site Releasing captive-bred individuals into a new site Releasing captive-bred or wild-collected individuals into an ecologically suitable site within their historical ranges where the species no longer occursarrow_forwardWhat species is targeted for conservation? What are their primary social behaviors (Group size, lifestyle, foraging habits and diet, hierarchies, territorial habits)? Where are they located and what are potential human influences on their habitats? What are the specific conservation strategies proposed in the report? How do they make use of new technologies (like GPS tracking, drone survey etc if applicable)? Do you think the strategies are appropriate given the particular social behaviors of that species? Do the strategies appropriately address the needs of this species as well as local community well-being and the political context?arrow_forwardFor each organism, create a survivorship curve by plotting the given information in a line graph. Title each graph "Survivorship Curve for [name of organism]." The y-axis should be labeled "Survivorship" and contain low, medium, and high indicators. The x-axis should be labeled "Life Span" and contain young, middle-aged, and old indicators. Andean condors reproduce slowly. Females lay one or two eggs every other year. The offspring that hatch are well-protected and cared for, and many reach sexual maturity at five to six years. Although their numbers are being threatened by human impacts, they are naturally long-lived, surviving for seventy to seventy-five years.arrow_forward
- You are a population ecologist studying animals in a national park, and park managers are asking for advice on how to focus their limited conservation funds. How would you rate the following three species, from most vulnerable (and thus most in need of conservation attention) to least vulnerable? Give reasons for your choices. • A bird that is a generalist in its use of habitats and resources • A salamander endemic to the park that lives in highelevation forest • A fish that specializes on a few types of invertebrate prey and has a large population sizearrow_forwardHow does a fertility rate above RLF produce positive feedback (in which a change creates a situation that amplifies itself) for population growth?arrow_forwardAll of the following strategies would potentially help restore populations of wild salmon except Group of answer choices a)planting vegetation along the sides of streams. b)fencing areas along stream where cattle graze. c)removing wood from streams to allow access for spawning adults. d)increasing education about water pollution. PreviousNextarrow_forward
- Mark Recapture can be written as M N = R Define each term. Use this equation to answer the following question. Show your work. A biologist for Mosaic fertilizer company catches 26 Florida scrub jays as part of their monthly environmental monitoring. Each bird is given a band. The next month, they catch 32 birds. 13 of the birds have bands. What is the estimated population size of the birds in that area?arrow_forwardThis figure plots the breeding populations of fur seals as they recovered from uncontrolled hunting. Based on this graph, what is the approximate carrying capacity of the fur seal's breeding habitat? 10 a) about 1,000 seals b) about 5,000 seals 6. c) about 10,000 seals 1915 1925 1935 1945 Year Data from K. W. Kenyon et al., A population study of the Alaska fur-seal herd, Federal Government Series: Special Scientific Report-Wildlife 12 (1954). © 2018 Pearson Education, Inc. Breeding male fur seals (thousands)arrow_forwardhttps://media.hhmi.org/biointeractive/click/lionfish-invasion/introduction.html This section starts explaining how scientists use the population survey data that are collected to model how the lionfish population changes over time. These models enable scientists to make predictions about population changes, which is an important element of developing plans for managing the lionfish population You'll be using the discrete-time logistic model that is described on this page in future parts of the case study, so make sure to carefully read through the explanation of this mathematical model. Even if you don't have a strong math background, this case study walks through the equation step by step. 6)Which of the following are constant terms in the discrete-time logistic model? choose all that apply a)Nt b)ΔN c)t d)K e)Δt f)rmax,d g)None of thesearrow_forward
- How does the study of population ecology help us understand why some populations grow, some remain stable, and others decline? a.) Why has human population growth, which increased exponentially for centuries, started to decline in the past few decades? b.) What is carrying capacity? Do you think carrying capacity applies to people as well as to other organisms? Why or why not?arrow_forwardWhich one of these statements about COSEWIC is false? COSEWIC's assessments take into account political, social and economic factors. The Species at Risk Act (2002) established COSEWIC as an advisory body. The committee made its first designation in April 1978 and has met annually since then. Members of COSEWIC are wildlife biology experts from academia, government, non-governmental organizations and the private sector responsible for designating wildlife species in danger of disappearing from Canada.arrow_forwardWhat are three ways an ecologist might capture an animal? one way an ecologist might sample a plant population in order to estimate numbers of plants?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
