All workshops are online, facilitated by Ambassadors, and include opportunities to interact with our resources and learn from other educators. Poaching tips scales of elephant evolution, The Genetics of Tusklessness in Elephants, Using Genetic Evidence to Identify Ivory Poaching Hotspots, Using Data to Investigate Elephant Evolution, Developing an Explanation for Tuskless Elephants, Moth Mimicry: Using Ultrasound to Avoid Bats. Answers may vary. +A,2k]lJ^G@R`Y0~8!CNC!MM5V_.0mLt(P1Gh9 k1]8Ay0 Ik@ +Xndi) g[! hb```lJB This video follows Joyce Poole and other scientists working in Gorongosa National Park, Mozambique, who made the striking observation that many female elephants lack tusks. As poaching in Gorongosa has been stamped out through sustained conservation efforts, the number of baby elephants born tuskless has begun to decrease. Teaching an Online Introductory Biology Lab Using Evolution and Ecology Resources, Why no tusks? More than 30 years later, she finally may have her answer. Students will then analyze data to investigate the impact of human activity, namely poaching, on elephant populations. Thanks for reading Scientific American. The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of cancer. Provide evidence-based reasoning that uses available data to support a scientific claim. Developing an Explanation for Tuskless Elephant www.BioInteractive.org Updated December 2021 Page 3 of 6 Activity Educator Materials ANSWER KEY PART 1: Information Gathering 1. Explain how the selective pressures on a population may impact the frequencies of phenotypes. The more killing there was, the more tuskless females you got. Hhmi Biointeractive Answer Key. Knowledge awaits. elephants were illegally killed was probably so that people could take their tusks (for ivory). To prevent his AP Environmental Science students from having "problem fatigue," Florida educator Scott Sowell focuses on how environmental solutions are developed, justified, implemented, and evaluated. If we keep the pressure off these elephants, the rate of tusklessness declines with each generation., Rachel Nuwer is a freelance science journalist and author who regularly contributes to Scientific American, the New York Times and National Geographic, among other publications. Articles that connect current events to BioInteractive resources. Elephant tusks are important for obtaining food and water, and essential to male elephants for competing for mates, so there is a strong natural selection for having tusks. endstream endobj startxref a. Watch the Selection for Tuskless Elephants video until time 1:46 and answer the following questions. If you're interested in using facilitated discussions to promote scientific literacy and empower students to make evidence-based decisions, this article from professor Holly Basta details how she restructured her course to promote student questioning and talk. This interactive module explores the diversity of viruses based on structure, genome type, host range, transmission mechanism, replication cycles, and vaccine availability. Describe how mutations in a variety of genes can affect the development of internal and external sex characteristics. Campbell-Staton and his co-first author, Brian Arnold of Princeton, were able to join forces with the other researchers to collect blood samples from 18 femalessome with tusks and some withoutthat would meet the genomic requirements for the project. This Click & Learn shows that keystone species exist across a variety of ecosystems and can exert their influence in different ways. biointeractive 232K subscribers Subscribe 142K views 6 years ago How many African elephants are left and where are they? Genetics Evolution Scientific Skills & Literacy Scientists at Work High School General High School AP/IB College To determine the traits prevalence after the conflict ended, she used a database of individual elephants that she and her husband and research partner Petter Granlialso a co-author of the new studyhad already built to study elephant behavior and communication. |U#62RF>^/,[4@[S5MT3M_q+; u* Tusklessness, according to a new paper in Science, can be attributed in large part to a dominant mutation on the X chromosome a genetic change that also explains the sex skew Poole saw. Poaching is artificially selecting for tuskless elephants who can better survive, mate, and pass on their genes to the next generation. 3. a. We know we have a lot of work to do to address racial inequities in science teaching. Not only do animals die due to poaching, but there is also additional decline because half of the male offspring from the surviving tuskless mothers do not survive., Good agrees that the findings are alarming. In this video, Poole explains a possible reason. video until time 1:46 and answer the following questions. a. Thanks for reading Scientific American. This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. (The first six weeks, as well as the culminating project . This study is among the first to show that selective killing of large vertebrates can have a direct impact on evolutionary change, says Fanie Pelletier, an ecologist at the University of Sherbrooke in Quebec, who co-authored a perspective piece in Science about the research. %PDF-1.6 % If you're interested in teaching about infectious diseases from an environmental science perspective, this article from Wisconsin educator Amy Fassler details how she incorporates our resources into a 5E lesson. In this activity, students work with authentic research data to explore the impact of poaching on African elephants. In this article from professor Karen Avery, see how she uses this unassuming model organism to teach concepts in cellular biology and genetics. The following statement reflects our current and specific actions. Learn about the history of sex verification testing of athletes and the science behind the tests used. Analyzing Data on Tuskless Elephants Pre-Video Activity 1. Campbell-Staton was just as perplexed by this as Poole had been, and he soon struck up a collaboration with her and other elephant ecologists. Africa, adaptation, Gorongosa, microevolution, scientific methodology, scientific process, selective pressure, trait. The resource is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license. AQ` n& This activity builds on information presented in the video Selection for Tuskless Elephants. Keep up with the latest from BioInteractive! The Click & Learn uses ongoing debates about the eligibility of certain female athletes to participate in women's events as an entry point for students to learn the processes involved in human reproductive development. Nature, in this case at least, seems to be correcting itself. This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. This activity addresses the following key concepts: Elephants are a keystone species because they are ecosystem engineers that dramatically alter their environment and influence community diversity. endstream endobj startxref This film describes natural selection and adaptation in populations of rock pocket mice living in the American Southwest. Pooles observationswhich were used a few months later to support a ban on international ivory tradewere alarming, but they mostly made sense. hb```lRB Answers Biointeractive Hhmi - Effebi.biella.it. This has left a notable gap in the literature that the new paper helps to fill. Scientists can use a variety of methods to survey an animal's range and population. For context, this course consisted of a three-credit lecture and a one-credit lab. v0E H+1Q` d It also made sense that tusklessnessa trait naturally found in a minority of the animals in Africawas apparently being artificially selected for because poachers had no reason to shoot such an animal. Let's Go! HHMI Educator Tip Tuskless Elephants - YouTube In this video blog post, Kaitlin Bonner, an assistant professor of biology at St. John Fisher College in Rochester, NY, explains how she uses. The Resource Google Folder link directs to a Google Drive folder of resource documents in the Google Docs format. HHMI is investing in increasing racial, ethnic, and gender diversity in academic science to create environments in which everyone can thrive. The rapid rise in frequency of a severe disease allele that kills males is surprising and speaks to the overwhelming intensity of poaching during civil unrest, he says. Among the younger females, who were born after this period of heavy poaching, 33% are tuskless. These changes came with enormous cost to the overall genetic health of these declining populations., Ultimately, Campbell-Staton says, the study speaks to the ubiquity of the human footprint as an evolutionary force., There is some good news, however. In this article, professor Phil Gibson discusses how he uses modified version of our Data Point activities as simplified case studies. As you watch the videos, complete the questions from the "Task 1" handout. Using Data to Investigate Elephant Evolution, The Genetics of Tusklessness in Elephants, Developing an Explanation for Tuskless Elephants, Using Genetic Evidence to Identify Ivory Poaching Hotspots. Poaching tips scales of elephant evolution, The Genetics of Tusklessness in Elephants, Using Genetic Evidence to Identify Ivory Poaching Hotspots, Using Data to Investigate Elephant Evolution, Developing an Explanation for Tuskless Elephants, Allele and Phenotype Frequencies in Rock Pocket Mouse Populations, Color Variation Over Time in Rock Pocket Mouse Populations, Look Who's Coming for Dinner: Selection by Predation, The Making of the Fittest: Natural Selection and Adaptation, Developing an Explanation for Mouse Fur Color, Simulating Evolution of a Rock Pocket Mouse Population. Key Concepts. Data Points are useful resources that use figures from the primary literature and guided sets of supporting questions. Perri Carr describes how she uses BioInteractives elephant resources to teach concepts ranging from biotechnology to genetics to ecology and conservation. iU D is the correct answer A key challenge faced by flowering plants is dispersal: spreading offspring to a different location where they can grow into a new plant Howard hughes medical institute 2007 holiday lectures on science cells of the immune systemstudent worksheet answer the following questions as you proceed through the activity slides Published December . Lessons. Explore our digital archive back to 1845, including articles by more than 150 Nobel Prize winners. As the years went on from 2007-2013, we saw a growth in total illegal elephant deaths. No rights are granted to use HHMIs or BioInteractives names or logos independent from this Resource or in any derivative works. In population simulations, the researchers confirmed that it is extremely unlikely that tusklessness would have changed so drastically by chance alone. This tool can be used to add pause points, questions, and labels to any BioInteractive video. Some prevent pathogens from entering the body, and some attack pathogens already inside the body. 318 0 obj <>stream This video case study explores whether elephants can detect, interpret, and respond to signals delivered by underground vibrations. Explain how characteristics associated with biological sex may affect athletic performance. Researchers created the model in Figure 1 using data from cell fractionation studies. 482 0 obj <>stream Elephant tusks are important for obtaining food and water, and essential to male elephants for competing for mates, so one might expect strong natural selection for having tusks. Most African elephants have tusks, but some about 2% to 6% of females and even fewer males never grow them. Video Activity 7. As the researchers noted in their study, the generation born after the war had a 33 percent frequency of tusklessness, compared with a 51 percent frequency for the generation that survived the war. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. endstream endobj 255 0 obj <. But he found himself sucked into the mystery of tuskless elephants when he watched a YouTube video about the phenomenon. hbbd```b``"WHg -,^ Please see the Terms of Use for information on how this resource can be used. 452 0 obj <>/Filter/FlateDecode/ID[<236583C912FAC64F88BAF3D554E36451>]/Index[415 68]/Info 414 0 R/Length 157/Prev 328511/Root 416 0 R/Size 483/Type/XRef/W[1 3 1]>>stream Poaching brings evolutionary pressure for tusklessness. 0 The video focused on Mozambiques Gorongosa National Park, which suffered especially heavy poaching during the Mozambican Civil War, which occurred from 1977 to 1992. 2 HS-LS1.A, HS-LS1.B, HS-LS3.B, HS-LS4.ASEP6, SEP8, IST-1.P, IST-1.J, IST-2.E, IST-4.A; SP1, SP2, SP4, SP6, IB Environmental Systems and Societies (2017), Teaching an Online Introductory Biology Lab Using Cellular and Molecular Biology Resources, Desktop App - macOS 10.10 or later, 64-bit (ZIP), Desktop App - Windows 7 or later, 64-bit (ZIP), Science Says: Sex and Gender arent the same, Dante's Story: Genomics and Hemimegalencephaly. It is important to track how many elephants are left and where they live to help protect them. Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. !: H3d -:Cg Zf d1 2. In this video Dr. Joyce Poole explains a possible reason. The human immune system is made up of many cells, organs, and tissues. eaht``wC(#U]}I)C Most African . This activity guides students through learning and using key scientific terms, culminating in the creation of a customizable diagram. Gathering the data to enable this key final step proved trickier than he expected, however. Using those samples, they identified candidate regions in the genome that, when mutated, seemed to explain tusklessness and its apparent male lethality. This interactive, modular lab explores the evolution of the anole lizards in the Caribbean through data collection and analysis. Discover implementation ideas, lesson sequences, resource modifications, quick tips, and more in this collection of videos and in-depth articles. %%EOF PART 2: Video Activity . Discover tools to help plan lessons and opportunities to support professional learning. HS-LS4-2, HS-LS4-3, HS-LS4-4, HS-LS4-5; SEP1, SEP5, SEP6, EVO-1.E, EVO-1.G, SYI-2.B, SYI-3.D; SP3, SP4, SP5, SP6, Topic(s): 2.1, 2.6, 9.10 Hear how experienced science educators are using BioInteractive resources with their students. Math.N-Q.A.1, Math.N-Q.A.3, Math.S-IC.3; MP2, MP3, IB Environmental Systems and Societies (2017), Teaching an Online Introductory Biology Lab Using Evolution and Ecology Resources, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license, Why no tusks? It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. The story of African elephants is a powerful case study of how science can inform conservation. Answers may vary. As of 2014, about 350,000 savanna elephants were living in Africa. Look up the definition of the term poaching and summarize your understanding of what it means in the space below. Only Meat: 19/129 * (100%) = 14.73% b. This web tool provides a quick and easy way of visualizing and analyzing data without advanced technological requirements. Explore the methods scientists use to survey elephants. Meat Only: 19 b. Tusks Only: 75 c. Meat and Tusks: 27 4. Analyze quantitative data in order to make predictions based on evidence. Analyzing Data on Tuskless Elephants. These declines may be a part of Earths next mass extinction. Many families lacked older femalesand many of those females had no tusks. Researchers have pinpointed how years of civil war and poaching in Mozambique have led to more elephants that will never develop tusks. Scientific Explanation of Evolution by Natural Selection. The first six weeks of the 15-week laboratory portion were conducted in a synchronous virtual format, using BioInteractive materials to teach the basic skills necessary to start the ethogram project. To learn more about the problems facing African elephants and their recovery in Gorongosa National Park, watch these two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census and all of Selection for Tuskless Elephants. Elephants were not an obvious choice for Campbell-Staton, who has mostly focused on lizards until now. biointeractive 231K subscribers Subscribe 1.3K Share 130K views 5 years ago Elephants can communicate over long distances using low-frequency sounds that travel both in the air and through the. Selection for Tuskless Elephants.
Ryan Blankenship Where Is He Now, Ohoopee River Boat Ramps, Articles H