Flowering rush (Butomus umbellatus) is a pink flowering perennial that has been identified as a prohibited noxious weed in Alberta. It is native to Europe, Africa, and Asia, but due to its prolific growth rate on shorelines, it has been crowding out the native species of Alberta. The following table shows the population growth of flowering rush in Chestermere Lake of Calgary. Year Population (N) 2007 10 2008 7 2009 8 2010 22 2011 46 2012 77 2013 158 2014 319 2015 297 2016 355 2017 334 2018 313 2019 291

Flowering rush (Butomus umbellatus) is a pink flowering perennial that has been identified as a prohibited noxious weed in Alberta. It is native to Europe, Africa, and Asia, but due to its prolific growth rate on shorelines, it has been crowding out the native species of Alberta. The following table shows the population growth of flowering rush in Chestermere Lake of Calgary. Year Population (N) 2007 10 2008 7 2009 8 2010 22 2011 46 2012 77 2013 158 2014 319 2015 297 2016 355 2017 334 2018 313 2019 291

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter19: Population And Community Ecology

Section: Chapter Questions

Problem 7RQ: Species with limited resources usually exhibit a(n) ________ growth curve. a. logistic b. logical c....

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Flowering rush (Butomus umbellatus) is a pink flowering perennial that has been identified as a prohibited noxious weed in Alberta. It is native to Europe, Africa, and Asia, but due to its prolific growth rate on shorelines, it has been crowding out the native species of Alberta. The following table shows the population growth of flowering rush in Chestermere Lake of Calgary. Year Population (N) 2007 10 2008 7 2009 8 2010 22 2011 46 2012 77 2013 158 2014 319 2015 297 2016 355 2017 334 2018 313 2019 291 Chestermere Lake has an area of 2.65 square km and an average depth of 2 m.
Flowering rush (Butomus umbellatus) is a pink flowering perennial that has been identified as a prohibited noxious weed in Alberta. It is native to Europe, Africa, and Asia, but due to its prolific growth rate on shorelines, it has been crowding out the native species of Alberta. The following table shows the population growth of flowering rush in Chestermere Lake of Calgary. Year Population (N) 2007 10 2008 7 2009 8 2010 22 2011 46 2012 77 2013 158 2014 319 2015 297 2016 355 2017 334 2018 313 2019 291 Chestermere Lake has an area of 2.65 square km and an average depth of 2 m. a) The growth rate of the flowering rush population above from 2009 to 2016 was B) The per capita growth rate of the flowering rush population above from 2009 to 2016 was c) Show your work in calculating the population density of flowering rush in Chestermere Lake in 2016.
Flowering rush (Butomus umbellatus) is a pink flowering perennial that has been identified as a prohibited noxious weed in Alberta. It is native to Europe, Africa, and Asia, but due to its prolific growth rate on shorelines, it has been crowding out the native species of Alberta. The following table shows the population growth of flowering rush in Chestermere Lake of Calgary. Year Population(N) 2007 10 2008 7 2009 8 2010 22 2011 46 2012 77 2013 158 2014 319 2015 297 2016 355 2017 334 2018 313 2019 291 a) What is the growth pattern of flowering rush in Chestermere Lake? a. lag b. J-curve c. exponential d. logistic b) What is the carrying capacity of the flowering rush population? a. approximately 285 plants b. between 291 and 355 plants c. approximately 400 plants d. between 158 and 355 plants
An invasive ant species has invaded the dairy bush. This species is known to cause considerable damage to mature trees. The population dynamics are given from a 1 square meter quadrat sample for the years 2007-2011 (see above). Make a table like the one above and fill in the missing values. Graph a population curve for the invasive ant population (x-axis year; y-axis final population size at the end of each year) and for each of the following statements, indicate whether it is True or False. (Enter 1 for True and 2 for False) There is no problem with this invasion because ants could not cause any ecological damage in a woodlot. If this population does not reach carrying capacity, there will be over 1000 invasive ants in the 1m square quadrat in 2016 (10 years of population growth). The population of invasive ants is at carrying capacity in the woodlot ecosystem. The population of invasive ants is NOT at carrying capacity in the…
A field of Cahaba lilies (Hymenocallis coronaria) growing in the Cahaba River currently has 5000 individuals and a per capita growth rate of 0.3 individuals/month/individual. The river cannot support more than 6000 Cahaba lilies. How many Cahaba lilies are in the population next month?
Trumpeter swans were once widespread and abundant in North America. However, a combination of heavy hunting pressure and habitat lost drastically 4 reduced the species’ population down to less than 70 individuals in the wild by the mid-1930s. By the mid-1980s, Trumpeter swans were more prevalent again in Alberta, especially near Grande Prairie. The following graph depicts the estimated number of Trumpeter swans in Alberta, carried out at five-year intervals from 1985 to 2010. What growth pattern of the Trumpeter swan population in Alberta is being observed? What environmental conditions allow the growth pattern that you identified? What may cause the growth pattern that is being observed to change?
In 2017, 16 bison were released into Elk Island National Park. Within the next five years, 42 more bison will be released into the 1,200 km2 area. During the study period, it is expected that 45 calves will be born and 13 bison will die or be removed from the study area. What is the expected per capita growth rate of the bison population during this study period? Express your answer rounded to two decimal places. If the population is decreasing indicate this with a negative sign.
Populations with exponential growth patterns do not experience a lag phase, populations with logistic growth patterns are the ones that have lag phases. True False
The Spotted Lanternfly (Lycorma delicatula) is endemic to China and was first identified in the United States in 2014 in Pennsylvania. It was found in New York in 2020. According to the New York State Department of Environmental Conservation (DEC) it poses a significant threat to our agricultural industry, negatively impacts outdoor recreation, and may impact forest health. Draw a graph of how you expect this population to grow in New York State given that there are few predators and ample fruit trees and other host trees (see more information on the USDA page). On your graph annotate and justify your predictions about population growth changes.
Label this logistic growth curve:
In which one of the following species is temporary exponential growth seen the most? invasive fish insects trees
Back at the original beaver population, only 40 beavers remained. This population also has a growth rate of 0.6 and generation time of 2 years. But the place on which this population resides is much smaller and has a carrying capacity of 200. How many beavers do you expect to find in the original population after 6 years?