Look at the graph below. Grasshopper Population in Grassland - Green Grasshoppers - Brown Grasshoppers 80 60 40 20 Generation 1 Generation 2 Generation 3 Generation 4 Generation 5 After generation 3, explain a possible reason there is a change in the graph. Predict what change has occurred.

You are studying a population of beetle size 3000. During a month period you record 400 births and 150 death in population. Estimate r what is overall change in population?

Can someone please let me know what this map is depicting? This is not a graded question. I am simply doing research on migratory patterns of roe deer and I am confused about this. What are the upper range figures depicting? Why is there a spread between the weeks? I just need help understanding the altitudinal gradient.

Vicuña are ungulate herbivores related to llamas that occupy high mountain grasslands in the Andes. They are valued for their wool. Overhunting led to global population declines from millions in the 1500s to thousands in the mid 1900s.Lauca National Park was established in Chile in 1970 and banned hunting of vicuña. Researchers used census data (solid circles) to fit the population dynamics, and evaluated two models: one in which the carrying capacity was fixed over time (“Logistic Constant K”, dashed line), and one in which the carrying capacity could vary over time (“Logistic Variable K”, solid line). See attached image What type of factor is rainfall in regulating vicuña population growth? A. Density-independent; Bottom-up B. Density-independent; Top-down C. Density-dependent; Bottom-up D. Density-dependent; Top-down

A scientist constructs a graph to show the age structure of the human population of Country Y. The graph is shown here. Age Structure of the Human Population, Country Y I Male 100+ 95-99 90-94 85-89 80-84 75-79 70-74 65-69 60-64 55-59 50-54 45-49 40-44 35-39 30-34 25-29 20-24 15-19 10-14 5-9 0-4 Female 20% 10% 0% 10% 20% What conclusion is supported by the graph? 1 2 3 4 5 7 oby

Summarise in words the information presented in the graph.

A population of butterflies triples every year. Initially, there were 40 butterflies. How many butterflies will there be after 4 years?

Two species have the same initial population size of 48.00, as well as rates of b = 0.83 and d = 0.66. However, species A reproduces seasonally and species B reproduces relatively continuously. How much bigger would the population of species B be after five years as compared to species A?

Use the information and table to answer the following question. An ecologist is studying a population of mosquitos living in a nearby pond. The ecologist estimates the population size twice a day - once at sunrise and once at sunset - for 5 days during the summer when mosquitos are reproducing. Their data is shown. Day 2 3 16 5 Time Sunrise Sunset Sunrise Sunset Sunrise Sunset Sunrise Sunset Sunrise Sunset Population Size (in thousands) 200 189 187 185 167 180 186 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?

https://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 these