Join with a free account for more service, or become a member for full access to exclusives and extra support of WorldSupporter >>
Density-dependent death rate is a phenomenon in population ecology where the death rate of a population increases as the population density increases. This occurs because as the population density increases, there is an increase in competition for resources such as food, water, and space. This leads to a decrease in the overall health and fitness of the population, which in turn leads to an increase in the death rate.
Key characteristics of density dependent death rate?
- Positive relationship: The death rate is positively correlated with the population density.
- Limited resources: The increase in death rate is caused by the limited resources available to the population.
- Various factors: The limited resources can include food, water, space, nesting sites, mates, and other factors that are essential for survival.
What is the importance of density dependent death rate?
- Density-dependent death rate is an important concept in population ecology because it helps to explain how populations grow and decline.
- It is also important for understanding the impact of human activities on populations, such as habitat destruction and pollution.
- Density-dependent death rate can be used to manage populations, such as by setting hunting quotas or implementing conservation measures.
What are practical applications of density dependent death rate?
- Wildlife management: Density-dependent death rate is used to manage wildlife populations by setting hunting quotas and implementing other management strategies.
- Fisheries management: It is used to manage fish populations by setting fishing quotas and implementing other management strategies.
- Conservation: Density-dependent death rate is used to develop conservation plans for endangered species.
Practical example
The population of rabbits in a field. The rabbit population will grow until it reaches the carrying capacity of the field. The carrying capacity is the maximum number of rabbits that the field can support. As the rabbit population approaches the carrying capacity, the resources available to each rabbit will decrease. This will lead to an increase in the death rate and the population will eventually stabilize at the carrying capacity.
Critical considerations
- Density-dependent death rate is a complex concept and there are many factors that can affect it.
- It is difficult to accurately measure the density-dependent death rate of a population.
- Density-dependent death rate is not the only factor that affects population growth and decline.
Study Guide with flashcards and definitions with Statistics of Biology at Utrecht University
Flashcards and definitions with Statistics of Biology
Online flashcards with Statistics of Biology
- Histogram
- P-value
- Boxplot
- One sample t-test
- Paired t-test
- Two sample t-test
- Pie chart
- Ordinary differential equation (ODE)
- Hill function
- Density dependent birth rate
- Density dependent death rate
- Cellular automata
- Individual based models
- Partial differential equations
- Event based models
- Lotka-Volterra model
- Competitive exclusion
- Hopf-bifurcation
- For flashcards and definitions, see the supporting content of this study guide
Summaries and Study Assistance - Start
Summaries, study notes, tips and tools for study and know how
For optimal and free use of summaries, study help, exam tickets, practice exams, bullet points notes
- join JoHo WorldSupporter
- then check the study and exam tips;
- study the material through the summaries;
- repeat the material through the bullets or notes
- master the material through the practice exams.
JoHo can really use your help! Check out the various student jobs here that match your studies, improve your competencies, strengthen your CV and contribute to a more tolerant world
Online access to all summaries, study notes en practice exams
- Check out: Register with JoHo WorldSupporter: starting page (EN)
- Check out: Aanmelden bij JoHo WorldSupporter - startpagina (NL)
How and why would you use WorldSupporter.org for your summaries and study assistance?
- For free use of many of the summaries and study aids provided or collected by your fellow students.
- For free use of many of the lecture and study group notes, exam questions and practice questions.
- For use of all exclusive summaries and study assistance for those who are member with JoHo WorldSupporter with online access
- For compiling your own materials and contributions with relevant study help
- For sharing and finding relevant and interesting summaries, documents, notes, blogs, tips, videos, discussions, activities, recipes, side jobs and more.
Using and finding summaries, study notes en practice exams on JoHo WorldSupporter
There are several ways to navigate the large amount of summaries, study notes en practice exams on JoHo WorldSupporter.
- Use the menu above every page to go to one of the main starting pages
- Starting pages: for some fields of study and some university curricula editors have created (start) magazines where customised selections of summaries are put together to smoothen navigation. When you have found a magazine of your likings, add that page to your favorites so you can easily go to that starting point directly from your profile during future visits. Below you will find some start magazines per field of study
- Use the topics and taxonomy terms
- The topics and taxonomy of the study and working fields gives you insight in the amount of summaries that are tagged by authors on specific subjects. This type of navigation can help find summaries that you could have missed when just using the search tools. Tags are organised per field of study and per study institution. Note: not all content is tagged thoroughly, so when this approach doesn't give the results you were looking for, please check the search tool as back up
- Check or follow your (study) organizations:
- by checking or using your study organizations you are likely to discover all relevant study materials.
- this option is only available trough partner organizations
- Check or follow authors or other WorldSupporters
- by following individual users, authors you are likely to discover more relevant study materials.
- Use the Search tools
- 'Quick & Easy'- not very elegant but the fastest way to find a specific summary of a book or study assistance with a specific course or subject.
- The search tool is also available at the bottom of most pages
Do you want to share your summaries with JoHo WorldSupporter and its visitors?
- Check out: Why and how to add a WorldSupporter contributions
- JoHo members: JoHo WorldSupporter members can share content directly and have access to all content: Join JoHo and become a JoHo member
- Non-members: When you are not a member you do not have full access, but if you want to share your own content with others you can fill out the contact form
Quicklinks to fields of study for summaries and study assistance
Field of study
- All studies for summaries, study assistance and working fields
- Communication & Media sciences
- Corporate & Organizational Sciences
- Cultural Studies & Humanities
- Economy & Economical sciences
- Education & Pedagogic Sciences
- Health & Medical Sciences
- IT & Exact sciences
- Law & Justice
- Nature & Environmental Sciences
- Psychology & Behavioral Sciences
- Public Administration & Social Sciences
- Science & Research
- Technical Sciences
Add new contribution