Thanks for contributing an answer to Biology Stack Exchange! Do resource partitioning and character displacement provide DIRECT or INDIRECT evidence for competition? Log in to Reply. The shift in the trait value is called character displacement. To learn more, see our tips on writing great answers. You guys did a great job of explaining the difference between two easily confused concepts, and I liked that you really emphasized them by explaining them in multiple ways. Besides that though I liked the voice over because it had a calm, smooth pace and I could clearly hear every word that was said but maybe try to sound a little more excited about the topic next time. It helped to differentiate the two concepts! Character displacement is an evolutionary adaptation in a heritable trait, caused by resource partitioning. Tying the differences between character displacement and resource partitioning to a relatable and fully understandable situation allows the viewer to better understand what is being taught. Why do people call an n-sided die a "d-n"? Character displacement is the phenomenon where differences among similar species whose distributions overlap geographically are accentuated in regions where the species co-occur, but are minimized or lost where the species' distributions do not overlap. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. food). The scene with the two players comparing talents was a little too long in my opinion, but it did get the point across. What is the name/type/species of this spider? Sorry, your blog cannot share posts by email. Why did mainframes have big conspicuous power-off buttons? It is no homework. sholtzen3 says: December 2, 2015 at 12:58 pm I enjoyed this video because it linked an abstract concept of biology to a real world example. If I stumbled upon this on the internet, I would probably click away before the video got to the more interesting half. Explain. Post was not sent - check your email addresses! On one hand I have the Galapagos Finch example, which is typically used to illustrate character displacement. Since the video had my attention, I was clearly able to comprehend what was told in the video and thus could understand the concept without any difficulty. The information in the beginning was very concise and clear. Once the live-action explanation began, I enjoyed the video. But since resource partitioning is more behavioral than anatomical, is resource partitioning a subset of character displacement or a rough overlap or none? I think that the first part of the video, before the basketball metaphor was the best part. Is this a type of character displacement? This pattern results from evolutionary change driven by biological competition among species for a limited resource (e.g. I feel like you could have just led with that and then explained the concept of character displacement and resource partitioning after that. Can you have a Clarketech artifact that you can replicate but cannot comprehend? I do suggest something other than long definitions on PowerPoint slides in the beginning. What would be a proper way to retract emails sent to professors asking for help? The use of the basketball metaphor was extremely interesting and it grabbed my attention immediately. The real life examples really helped out with understanding the concept. This video was very good in my opinion. It is the faith that it is the privilege of man to learn to understand, and that this is his mission.”. It only takes a minute to sign up. I enjoyed this video because it linked an abstract concept of biology to a real world example. MAINTENANCE WARNING: Possible downtime early morning Dec 2/4/9 UTC (8:30PM…, “Question closed” notifications experiment results and graduation. I found that a method I was hoping to publish is already known. What is the best way to remove 100% of a software that is not yet installed? Solid work. My answer is ready, however we have a policy of not answer homework question (or homework-like question) without the OP showing an attempt at answering his/her own question. Does it look like character displacement? The comparison to basketball really helps make the biological concepts more relatable despite their complexity. I might also add transitions between clips. "Resource partitioning" is not necessarily more behavioural than anatomical and even if it was, a behaviour is a phenotype, just like any other phenotype, and it should not be disregarded. Character displacement stems from the competitive exclusion principle, saying that in order for species to exist, their Does PostgreSQL always sequentially scan pages in the same order? This video was great! I really like the analogy of the basketball players. I would suggest trying to simplify the visuals at the beginning, maybe just spacing them out in order to make it easier on the eye. Why is the concept of injective functions difficult for my students? Resource partitioning is the division of limited resources by species to help avoid competition in an ecological niche. Really informative video! Helped clear up the differences for me. The only recommendation I have would be to create the beginning half of the video to be more dynamic to interact with the audience more. By the fact that these two species feed at different moment of the day, they therefore have slightly different ecological niches. @Bakshi please provide evidence that you tried answering this question yourself to avoid having the question closed. This competition-driven process assumes that individuals of species who overlap in their niche (and this being directly related to the degree of competition) will have lowered fitness, causing directional selection. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. It is possible that divergence in their feeding time happened long before being found in sympatry. Biology Stack Exchange is a question and answer site for biology researchers, academics, and students. It was humorous (and was therefore entertaining), while still solidifying the concepts presented. The initial information presented at the beginning of the video would have been more interesting if you had written out the information or showed it in a more interesting way than a stationary PowerPoint slide. It is indeed the type of consequences brought about by character displacement. By examining how and why resources are allocated in a particular niche, scientists can better understand the complex … ANS) Indirect: In the case of character displacement, it is observable that the traits have changed in one way or another, and using Darwin’s theory of survival of the fittest, it is safe to assume that competition is responsible for the changes. How do I legally resign in Germany when no one is at the office? Log in to Reply. 7. The character being displaced in a 'character displacement' scenario can be behavioural. Asking for help, clarification, or responding to other answers. In any environment, organisms compete for limited resources, so organisms and different species have to find ways to coexist with one another. Resource competition can also lead to character displacement, whereby competitors evolutionarily diverge in their resource use, reduce niche overlap, and thereby coexist. They prey on the same species but avoid competition by feeding at different times of the day. The rationale for character displacement stems from the competitive exclusion principle, also called Gause's Law, which contends t… Content of Biology 1510 Biological Principles, Population Genetics: the Hardy-Weinberg Principle, Earth History and History of Life on Earth, Introduction to Ecology; Major patterns in Earth’s climate, Chemical context for biology: origin of life and chemical evolution, Respiration, chemiosmosis and oxidative phosphorylation, Oxidative pathways: electrons from food to electron carriers, Fermentation, mitochondria and regulation, Why are plants green, and how did chlorophyll take over the world? Use MathJax to format equations. Secondly, the beginning of the video was quite dull and could easily dissuade the viewer from continuing watch the entire thing. Can anyone identify what type of bug this is? Helpful example with linking it with an everyday, understanding topic. How to find individual probabilities of all numbers from a list? The first few minutes were merely copied pictures and definitions with a voice overlay. I really enjoyed the the metaphors that you guys employed. March 27: Niches: Competition, resource partitioning, and character displacement study guide by littleladyE includes 20 questions covering vocabulary, terms and more. What are you thoughts on the question? Imagine two related species. I wouldn’t change a thing. Making statements based on opinion; back them up with references or personal experience. I really enjoyed how this video incorporated a voiceover to explain the concepts along with a fun video for a better balance than just having one. One suggestion would be to maybe make the beginning of the video more dynamic to match the video half as that seemed a bit disjointed.