1st option: T/F Ecologists have found a general trend in which, as body size increases, the density ofindividuals decreases. The graph below shows the body mass versus the density ofdifferent species that live in Serengeti National Park. The lions, cheetahs, and hyenasare predators, and the antelope, zebras, and wildebeest are prey. Note that density isgraphed on a log scale. Please answer the following questions:Log of Density (number/km²)1000-100-1.0-1-0.1-0.01Gazelle● Hyenas100● Cheetah200● Lion300400Body Mass (lbs)Zebra500● Wildebeest600700Does the relationship between body mass and density follow the general trenddescribed by ecologists? [Select]Why might some of the species not fit the general trend?[Select]The predator species all have densities under 1 individual per km², while the preyspecies have densities above 1. What hypothesis might explain this phenomena?Living in large groups reduces the probability of any individual being eaten; Predatorsliving in smaller groups reduces competition and can increase cooperation Why might some of the species not fit the general trend?[Select]predators and prey have different densities.These data from 7 species show that the hypothesized inverse relationship between population density and body mass we went over in class is wrongfour of the species fit, but Gazelles, and maybe Hyenas, are just outliersiiving in Smanici groups iuucts competition and can meitast cooperation

Predators are the huge species that capture the prey and preys are small species that are being…

logists have found a general trend in which, as body size increases, the density of ividuals decreases. The graph below shows the body mass versus the density of erent species that live in Serengeti National Park. The lions, cheetahs, and hyenas predators, and the antelope, zebras, and wildebeest are prey. Note that density is phed on a log scale. Please answer the following questions: 1000- 100- 1.0- 1- 0.1- 0.01 Gazelle 100 Hyenas Cheetah 200 Lion Zebra Wildebeest 300 400 500 600 700 Body Mass (lbs) es the relationship between body mass and density follow the general trend cribed by ecologists? [Select] y might some of the species not fit the general trend?

logists have found a general trend in which, as body size increases, the density of ividuals decreases. The graph below shows the body mass versus the density of erent species that live in Serengeti National Park. The lions, cheetahs, and hyenas predators, and the antelope, zebras, and wildebeest are prey. Note that density is phed on a log scale. Please answer the following questions: 1000- 100- 1.0- 1- 0.1- 0.01 Gazelle 100 Hyenas Cheetah 200 Lion Zebra Wildebeest 300 400 500 600 700 Body Mass (lbs) es the relationship between body mass and density follow the general trend cribed by ecologists? [Select] y might some of the species not fit the general trend?

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 3DID

See similar textbooks

Similar questions

A population of white-footed mice becomes severely overpopulated. Which of the following represents a density-independent control on population growth of these mice? Decreased immune function in the mice due to stress related to overcrowding Increased numbers of owl predators due to the increased number of mice Temperatures much warmer than normal due to increased greenhouse gases, which disrupts the normal breeding cues for these mice Rapid transmission of diseases and parasites amongst the mice Lack of sufficient food and shelter for the high numbers of mice
Population growth is exponential for the human population. It is an example of a positive feedback cycle where with each child born, the potential number of parents increases in the future. What is the most logical conclusion as to when the human population will reach its carrying capacity? A. When a regulating factor exists that keeps the population at equilibrium B. When feedback mechanisms kick in and population growth declines below carrying capacity C. When equilibirum is reached D. When density-dependent factors come into play and population levels start to decline ❌
You are part of a group of researchers examining the survivorship and fecundity of Bengal Tigers (Panthera tigris tigris) in the Kalakkad Mundanthurai Tiger Reserve in the South Indian state of Tamil Nadu. Parts of the reserve are well-protected from poaching, and other parts are largely unprotected. Over a period of several years, you’ve gathered demographic data (summarized below) on tigers in both poached and unpoached locations; assume that mx numbers represent female offspring born per female. Note that your demographic data begins at age 1, and does not include survivorship of cubs from birth to age 1. Also, note that Sx is listed here -- this is related to, but is NOT the same as lx… To calculate r, use the formula r = ln(Ro)/T. Including unpoached poaching Tiger age (x) Sx Sx Mx 0 1 1 0 1 0 2 0.83 0.69 0.04 3 0.91 0.65 0.64 4 0.9 0.62 0.78 5 0.85 0.6 0.71 6…
Scenario: You are conducting a study on the influence of population density on body mass in leafy seadragons in oceans off the coast of Australia. You are investigating the biological hypothesis that population density influences body length, and the prediction that individual leafy seadragons in higher density populations will have smaller body length. You have randomly sampled 15 leafy seadragon individuals from each of two locations in Australia, one location has a naturally low population density and the other area has a naturally high population density. The descriptive statistics of leafy seadragon body length (in cm) are shown in the table. What value best represents the t-statistic? (only 2 decimal places are given, recall there could be very minor variation due to rounding.) Low population density High population density X̄ 16.3 15.3 s 2.1 1.7 n 15 15
If models that display population growth ignored age structure how would this limit their value for predicting furture population size? Reference to either lx or mx.
Figure 19.2 As this graph shows, population density typically decreases with increasing body size. Why do you think this is the case?
Great white sharks prefer marine mammals like seals but can eat a number of other prey items, including birds and fish. According to the table below, what is the critical search time for seals, above which great white sharks should choose to eat an albatross if they encounter one? Prey item: seal (energy = 60 Mcals, handling time = 5 minutes) Prey item: albatross (energy = 10 Mcals, handling time = 2 minutes)
Based on the data, what is the estimated carrying capacity for the population and what factor may have led to a change in data at day three? A. The estimated carrying capacity is approximately 188 thousand. The population may have decreased during day three because of increased pressure from a limiting factor, such as unfavorable temperature. B. The estimated carrying capacity is approximately 188 thousand. The population may have decreased during day three because of decreased pressure from limiting factors, such as more food being available. C. The estimated carrying capacity is approximately 167 thousand. The population may have decreased during day three because of increased pressure from a limiting factor such as reduction of food available. D. The estimated carrying capacity is approximately 167 thousand. The population may have decreased during day three because of decreased pressure from a limiting factor such as reduction of predators eating the…
Classify each situation as density-dependent or density-independent AND explain your reasoning. a. Lynx prey on snowshoe hares. An increase in the snowshoe hare population causes an increase in the lynx population. b. Increase in the water temperature causes many aquatic organisms to die.
Using the lynx–hare interaction, explain in words the equations of the Lotka–Volterra model for the change in the population sizes of prey and predators.
If each adult female powerful owl produces 1 female juvenile (F) each year, the adult survival rate (Sa) is 0.8, the juvenile survival rate (Sj) is 0.4, and the population is N2022=1400 adult females and 1400 juvenile females in 2022, what will be the female population size in 2027 (N2027)? Show your calculations. (hint: use excel to set up a model and check your work)
Where are the highest and lowest population densities of humans?