Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 27.2, Problem 1CSC
Summary Introduction
To determine:
Whether the future of elephant seal is secure or not.
Introduction:
Population comprises of all the species members, which live in an area (specific) and have the potential to breed with one another. The population of elephant seal experiences both density-independent as well as density-dependent environmental resistances.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
With respect to the Lotka-Volterra predator-prey model, which of the following
statements is most likely true?
Under this model, it is possible for a predator to drive its prey to extinction.
All of the statements are true.
Non of the statements is true.
This model predicts neutrally-stable predator-prey cycles, as opposed to a
stable equilibrium.
O In this model, an increase in searching efficiency (a) will increase the maximum
prey population.
Female cottontail rabbits (sylvilagus floridanus) are especially fertile, able to give birth to seven litters a year. While this would suggest areas with cottontail rabbits would be overrun by them, this isn’t the case. Rabbit populations are restricted by factors like food availability and predation. Due to these limiting factors the rabbit population will only get so big and that is it’s carrying capacity. Carrying capacity can fluctuate depending on the limiting factors. If there is more predation or little food, then the carrying capacity will be lower. If there is little predation and abundant food, then the carrying capacity will be higher because the ecosystem can support a larger population.
Milkfish (Chanos chanos) is the only fish species that belongs to Family Chanidae which is nearly related to tuna and salmon due to its fusiform shape and migratory nature (FAO 2009; BFAR 2020). It is widely distributed in the Indo-pacific region and abundantly collected in the South and Southeast Asian, and West Pacific Regions (BFAR 2010). Milkfish is one of the most commercially important fish species in the Philippines (Samson 1984).
Milkfish reach sexual maturity (approximately 1.5m length and 20 kg weight) in five years in large floating cages, but may take 8-10 years in ponds and concrete tanks (FAO 2009). In the natural environment, milkfish populations near the coral reefs spawn during warm months of the year while populations near the equator spawn year-round. First-time spawners produce fewer eggs but larger and older broodstocks produce as many eggs as wild adults of similar size. Broodstocks of about 8 years old and about 6 kg produce 3-4 million eggs. Juvenile and adults…
Chapter 27 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 27.1 - Prob. 1CSCCh. 27.1 - Prob. 1CYLCh. 27.1 - Prob. 1HYEWCh. 27.1 - The Return of the Elephant Seals Female elephant...Ch. 27.1 - Prob. 2CYLCh. 27.1 - Prob. 3CYLCh. 27.2 - Prob. 1CSCCh. 27.2 - Prob. 1CYLCh. 27.2 - Prob. 1TCCh. 27.2 - Prob. 2CYL
Ch. 27.2 - What factors might make these population data...Ch. 27.2 - Prob. 3CYLCh. 27.2 - What benefits does mass emigration give to animals...Ch. 27.3 - Prob. 1CYLCh. 27.3 - Prob. 2CYLCh. 27.4 - describe the three types of spatial distribution...Ch. 27.5 - Prob. 1CSRCh. 27.5 - describe the advances that have allowed...Ch. 27.5 - Prob. 1TCCh. 27.5 - explain why rapid population growth continues...Ch. 27.5 - Prob. 2TCCh. 27.5 - Prob. 3CYLCh. 27.5 - Prob. 3TCCh. 27.5 - Prob. 4CYLCh. 27 - Research a developing country (such as Nigeria,...Ch. 27 - Prob. 1FIBCh. 27 - Prob. 1MCCh. 27 - Prob. 1RQCh. 27 - Prob. 2ACCh. 27 - The type of growth that occurs in a population...Ch. 27 - Prob. 2MCCh. 27 - Prob. 2RQCh. 27 - Prob. 3FIBCh. 27 - Prob. 3MCCh. 27 - Draw, name, and describe the properties of a...Ch. 27 - Prob. 4FIBCh. 27 - Prob. 4MCCh. 27 - Prob. 4RQCh. 27 - Prob. 5FIBCh. 27 - Prob. 5MCCh. 27 - What is logistic population growth? What is K?Ch. 27 - Prob. 6RQCh. 27 - Distinguish between populations showing concave...Ch. 27 - Explain why environmental resistance has not...Ch. 27 - Prob. 9RQCh. 27 - Prob. 10RQ
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Milkfish (Chanos chanos) is the only fish species that belongs to Family Chanidae which is nearly related to tuna and salmon due to its fusiform shape and migratory nature (FAO 2009; BFAR 2020). It is widely distributed in the Indo-pacific region and abundantly collected in the South and Southeast Asian, and West Pacific Regions (BFAR 2010). Milkfish is one of the most commercially important fish species in the Philippines (Samson 1984). Milkfish reach sexual maturity (approximately 1.5m length and 20 kg weight) in five years in large floating cages, but may take 8-10 years in ponds and concrete tanks (FAO 2009). In the natural environment, milkfish populations near the coral reefs spawn during warm months of the year while populations near the equator spawn year-round. First-time spawners produce fewer eggs but larger and older broodstocks produce as many eggs as wild adults of similar size. Broodstocks of about 8 years old and about 6 kg produce 3-4 million eggs. Juvenile and adults…arrow_forwardMilkfish (Chanos chanos) is the only fish species that belongs to Family Chanidae which is nearly related to tuna and salmon due to its fusiform shape and migratory nature (FAO 2009; BFAR 2020). It is widely distributed in the Indo-pacific region and abundantly collected in the South and Southeast Asian, and West Pacific Regions (BFAR 2010). Milkfish is one of the most commercially important fish species in the Philippines (Samson 1984). Milkfish reach sexual maturity (approximately 1.5m length and 20 kg weight) in five years in large floating cages, but may take 8-10 years in ponds and concrete tanks (FAO 2009). In the natural environment, milkfish populations near the coral reefs spawn during warm months of the year while populations near the equator spawn year-round. First-time spawners produce fewer eggs but larger and older broodstocks produce as many eggs as wild adults of similar size. Broodstocks of about 8 years old and about 6 kg produce 3-4 million eggs. Juvenile and adults…arrow_forwardMilkfish (Chanos chanos) is the only fish species that belongs to Family Chanidae which is nearly related to tuna and salmon due to its fusiform shape and migratory nature (FAO 2009; BFAR 2020). It is widely distributed in the Indo-pacific region and abundantly collected in the South and Southeast Asian, and West Pacific Regions (BFAR 2010). Milkfish is one of the most commercially important fish species in the Philippines (Samson 1984). Milkfish reach sexual maturity (approximately 1.5m length and 20 kg weight) in five years in large floating cages, but may take 8-10 years in ponds and concrete tanks (FAO 2009). In the natural environment, milkfish populations near the coral reefs spawn during warm months of the year while populations near the equator spawn year-round. First-time spawners produce fewer eggs but larger and older broodstocks produce as many eggs as wild adults of similar size. Broodstocks of about 8 years old and about 6 kg produce 3-4 million eggs. Juvenile and adults…arrow_forward
- Milkfish (Chanos chanos) is the only fish species that belongs to Family Chanidae which is nearly related to tuna and salmon due to its fusiform shape and migratory nature (FAO 2009; BFAR 2020). It is widely distributed in the Indo-pacific region and abundantly collected in the South and Southeast Asian, and West Pacific Regions (BFAR 2010). Milkfish is one of the most commercially important fish species in the Philippines (Samson 1984). Milkfish reach sexual maturity (approximately 1.5m length and 20 kg weight) in five years in large floating cages, but may take 8-10 years in ponds and concrete tanks (FAO 2009). In the natural environment, milkfish populations near the coral reefs spawn during warm months of the year while populations near the equator spawn year-round. First-time spawners produce fewer eggs but larger and older broodstocks produce as many eggs as wild adults of similar size. Broodstocks of about 8 years old and about 6 kg produce 3-4 million eggs. Juvenile and adults…arrow_forwardMilkfish (Chanos chanos) is the only fish species that belongs to Family Chanidae which is nearly related to tuna and salmon due to its fusiform shape and migratory nature (FAO 2009; BFAR 2020). It is widely distributed in the Indo-pacific region and abundantly collected in the South and Southeast Asian, and West Pacific Regions (BFAR 2010). Milkfish is one of the most commercially important fish species in the Philippines (Samson 1984). Milkfish reach sexual maturity (approximately 1.5m length and 20 kg weight) in five years in large floating cages, but may take 8-10 years in ponds and concrete tanks (FAO 2009). In the natural environment, milkfish populations near the coral reefs spawn during warm months of the year while populations near the equator spawn year-round. First-time spawners produce fewer eggs but larger and older broodstocks produce as many eggs as wild adults of similar size. Broodstocks of about 8 years old and about 6 kg produce 3-4 million eggs. Juvenile and adults…arrow_forwardUsing 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.arrow_forward
- Endler (1980) set up two experiments, one in the greenhouse and one in the field to test the influences of mate choice and predation in determining colorfulness of male guppies. Identify the roles of mate choice and predation in determining colorfulness of male guppies. Identify the advantage and shortcomings of the greenhouse experiments. Identify the advantages and shortcomings of field experiments along the Aripo River. Identify other factors, especially physical and chemical factors, might influence male color.arrow_forwardTwo winters ago, a species of bird called the pine siskin began appearing in droves at backyard bird feeders in my hometown. We would occasionally spot a few each winter, but numbers were unusually high that year. The next winter, it seemed as if all of the "extra" pine siskins had disappeared. Numbers fell back to the levels that we were used to seeing. Use the concept of carrying capacity to explain the irruption of pine siskins described in the scenario. Provide your answer in a standard paragraph using complete sentencesarrow_forwardThe long-term study by Krebs on the population dynamics of snowshoe hares and lynx has become a textbook example of predator-prey relationships. The population cycles he observed are the result of both biotic and abiotic factors affecting prey populations. List 3 factors that can contribute to population cycles and briefly explain their effectsarrow_forward
- Hyena carrying capacity in Mkomazi National Park is 500 (in the absence of competitors). Wild Dog carrying capacity in that park is 700 (in the absence of competitors). The addition of 1 wild dog to the park is equivalent to adding 2.5 hyena. The addition of 1 hyena to the park is equivalent to adding 0.4 wild dogs. Which of these species is the better competitor? Justify your answer quantitatively and illustrate your argument using an appropriate graph.arrow_forwardSimilar ranges for eastern gray amd red squirrels. Both fed a variety of nuts. This is example of interference competition through.... allelopathy preemption territoriality or. Resource competitionarrow_forwardThe relationship between predator and prey populations has been studied by computer simulation using equations which form part of a mathematical model devised by Lotka and Volterra. The data in Table 6.10 show the results of such a simulation when the prey population begins with 20 individuals and the predator population begins with six individuals. 1.Explain why the peaks in the predator population occur after those in the prey population. 2. This simulation assumes one prey species and one predator species in an imaginary ecosystem and is based on mathematical equations. Why is it likely to be too simplistic to describe accurately what happens in nature?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Parasites: Protozoa (classification, structure, life cycle); Author: ATP;https://www.youtube.com/watch?v=V4iSB0_7opM;License: Standard youtube license