When Yellowstone National Park was created in the late 1800s, the grey wolf population was not protected, which led to the elimination of the population in 1926. In 1995, 21 wolves were reintroduced in Yellowstone National Park. The following table shows the total number of wolves in Yellowstone since the reintroduction in 1995: Year Number of Wolves 1995 21 1996 51 1997 86 1998 112 1999 118 2000 119 2001 132 2002 148 2003 174 2004 171 2005 118 2006 136 2007 171 2008 124 2009 96 2010 97 2011 98 2012 83 2013 95 What is the expected growth pattern and growth curve of the grey wolf population in Yellowstone National Park, respectively? Select one: a. logistic and S-shaped b. exponential and J-shaped c. logistic and J-shaped

Q: 42. Which of the following would not be illegal under the Endangered Species Act? A. Having a permit…

A: Endangered species are those which are likely to be eradicated or vin vanishing state in near…

Q: 49. In what way can deforestation, building of dams, conversion of forest to agricultural lands and…

A: Deforestation is the large-scale removal of trees from forests (or other lands) for the fulfillment…

Q: 60 2400 50 2000 1600 1200 20 800 10 400 1 4 Generations - Wolf population Elk population Number of…

A: Predator- prey relationship is very useful to maintain the ecosystem.  In this relationship, one…

Q: 34. In general, which of the following is the best long-term method of preventing extinctions? (A)…

A: In the ecosystem different species are present that interact with each other and form a complex food…

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A: The correct option is option B i.e. biotic potential. Biotic potential refers to the unrestricted…

Q: 1. Competition between the gray squirrel (native to North America) and the red squirrel (native to…

A: The eastern grey squirrel (Sciurus carolinensis), sometimes known as the grey squirrel, is a species…

Q: Wolves, elk and coyotes in Yellowstone Park The estimated North American population of grey wolves…

A: Elk is that the primary prey for wolves, comprising ninety-two % of kills throughout the winter.

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A: In 1993–1994, a large moose population survey was conducted to determine moose numbers, densities,…

Q: Wolves recolonized a large area around Grand Teton National Park (GTNP) in the late 1990’s. Wolf…

A: A population can be described as the number of particular organisms that inhabit a specific area.…

Q: Describe what happened to the deer and wolf populations between 1971 and 1980. What happened to the…

A: Predation is a type of biological interaction between species in which one species kills the other…

Q: American crows (species 1) compete with Turkey Vultures (species 2) for carrion. Vultures are 4x as…

A: Interspecific competition is the competition between two different species. Whereas, intraspecific…

Q: 39. The carrying capacity of a region is reached when the population growth equals zero and the land…

A: Carrying capacity is the maximum number of individuals of a particular species that can be sustained…

Q: 1.) In the first population count, the bull : cow ratio was 23 : 100. In the second count, the…

A: 1). The ideal bull-to-cow ratio is 40:100, thus this ratio should be acceptable to wildlife…

Q: Number of Deer Deer Wolf Deer Predation Starvation Population Change +300 Year Population Population…

A: Deer population in 1980 = 1972 No. of Deer offspring in 1981 = 1000

Q: n 1-2 sentences for each ecological change and in your own words, explain any two of the four ways…

A: Salmon name is given to species of ray finned fishes that belongs to the family salmonidae.

Q: Which of the following dynamics are not predicted by the Lotka-Volterra predator-prey model using an…

A: The Lotka–Volterra conditions, otherwise called the hunter prey conditions, are a couple of…

Q: 89)You study a population of mussels recently introduced to a section of the Rideau River 8 years…

A: This is a simple question we have to just calculate the mussel species after 8 years of their…

Q: 19. A researcher is studying a spring herb with flowers that vary from white to pale pink to bright…

A: There are various different kinds of selection pressures that are present in the environment. All…

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A: Question - Is the wolf population controlled by density or density-independent factors? Explain…

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A: Birthrate: It is the total number of live births per thousand population of a specific area over a…

Q: 20. In a biological community where diversity is great, such as a tropical rainforest, the abundance…

A: Each of the populaces that are living and interfacing inside a specific geographic region make up a…

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A: Introduction :  A population is an identifiable grouping of items with the purpose of analysis and…

Q: need help on # 5,6,7????

A: A population can be defined as a group of individuals of the same species living in the same…

Q: The population growth rates of many species in nature do not match those predicted by the equation,…

A: Population growth curves helps us to roughly predict the future of any population by following their…

Q: (NP-P2) Projected Resident Population of the United States as of July 1, 2000, Middle Series. Age…

A: Introduction Population:- It is the number of living people that live together in the same place and…

Q: 160 140 120 100 80 60 40 20 1845 1865 1885 1905 1925 Time (years) (a) Based on the graph, identify…

A: The relationship between the lynx and the snowshoe hare is a classic example of the predator-prey…

Q: 10. Effective population size refers to the number of individuals which can participate in the…

A:

Q: 18. A breeding pair of rabbits escaped from their cage behind a farmer's barn. The farmer observed…

A: Density-dependent factors are those factors that causes the change in the population growth rate due…

Q: 1. This graph comes from a study on the effects of European green crabs on the food web in Bodega…

A: In an ecosystem, biotic components interact with each other and exhibit various kinds of…

Q: Why is biodiversity important?   Increased biodiversity can lead to improved and functioning…

A: Biodiversity orginates from words Bios=life forms ,diversity =different forms . Hence biodiversity…

Q: Only a few hundred grizzly bears remain in the contiguous United States, but populations are healthy…

A: Biodiversity is a variety of life on Earth at all levels from genes to ecosystems and the ecological…

Q: One argument for hunting and fishing is to limit wildlife populations to near 1/2 K.  WHY is this…

A: Hunting can be isolated into three general classes: "resource hunting" (nourishment for own…

Q: 33. What would be the best way to conserve an endangered species (protect it from extinction)? A.…

A: Endangered species are those species that have high chance of getting extinct someday. In order to…

Q: 2. The following graphs give information about the populations of Burmese pythons and mammals in the…

A: From both the graphs, the following observations can be made -  1. From 1993 - 99, the population of…

Q: 6. It is a criticism of many population ecologists that the pattern of population increase and…

A: No, I disagree. The population of deer would be in control if predators were there. It has been seen…

Q: The carrying capacity of the lobster population can be best described as the Select one: a. initial…

A: Carrying capacity  The amount of resources present in an ecosystem which is utilised by the organism…

Q: 40. Which species of marine fish does not appear to be in decline (based on catch-per-unit-effort),…

A: The ecological balance in this environment is maintained by the prey-predator mechanism, without…

Q: The Arizona Forest occupies 87,174,334,009 sq. miles land that cater different kinds of species. One…

A: Crude birth rate is the ratio in which the numerator is number of live births in a population in a…

Q: 62. As Franklin is walking to school, he notices a new neighborhood being built. The first thing the…

A: Introduction The cutting of trees is called as Deforestation. The benefits of trees are :- Trees…

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A: A population comprises individuals of the same species. Population of different species together…

Q: 43. Fragmenting one large park or preserve into many small parks with human habitation in between…

A: Habitat fragmentation occurs when a big tract of forest is separated into several smaller areas,…

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A: 4) As white mice are more aggressive towards each other, the young are less healthy, and more young…

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A: Answer:- Option A is the correct choice. Intraspecific competition - It is a type of competition…

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A: Ecosystem is an area where the group of individuals or organisms live together and interact with…

Q: 8)Which of the following questions would be considered ecological questions? choose all that apply…

A: There are millions of organisms that exist on the earth. Each organism is depending on the…

Population Growth

R and K Selection

R and K selection are concepts in ecology used to describe traits in the fluctuation of a population or population dynamics. For example, they describe the life-association traits between parent and offspring, such as quantity or number of young ones born at a time, quality of parental care, the age to maturity, and reproductive effort.