Some prevent pathogens from entering the body, and some attack pathogens already inside the body. This tool can be used to add pause points, questions, and labels to any BioInteractive video. 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. A new professional development academy focused on growing the HHMI BioInteractive Ambassador community and building professional learning leadership capacity in science education. Elephant Evolution and Adaptation. IB Environmental Systems and Societies (2017). This video follows ecologist Caitlin O'Connell-Rodwell, who is studying how elephants can communicate over long distances using low-frequency sounds that travel both in the air and through the ground. Provide evidence-based reasoning that uses available data to support a scientific claim. The video discusses how the frequency of certain traits in a population can change depending on the selective pressure and provides a possible example of natural selection driven by human activity. Scientists are trying to determine the genes involved in tusk development and how variations in these genes can lead to tusklessness. It seemed simple enoughexcept we drove all day, every day for a week and didnt see a single elephant.. Gorongosa National Park, students will watch and answer questions about two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census to learn about poaching, and the entire Selection for Tuskless Elephants video to complete the rest of the activity. a. hbbd```b``"WHg -,^ 254 0 obj <> endobj Biology 101 Spring 2020 Selection for Tuskless Elephants modified from HHMI BioInteractive PART I: Introduction and Pre-Video Activity A survey of African savanna elephants revealed that populations declined by 30% between 2007 and 2014. Poaching brings evolutionary pressure for tusklessness. Meat Only: 19 b. Tusks Only: 75 c. Meat and Tusks: 27 4. 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. Suggest some ways to reduce the number of elephants that are illegally killed each year. Explain how the selective pressures on a population may impact the frequencies of phenotypes. This activity builds on information presented in the video Selection for Tuskless Elephants. %PDF-1.5 % The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of cancer. Create your free account or Sign in to continue. 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. It is important to track how many elephants are left and where they live to help protect them. The researchers first needed to determine whether it was actually the selection from poaching that led to a disproportionate number of tuskless individuals or if it was just some fluke of chance that emerged as the population crashed. Poole, who is a co-author on the new paper, combed through old natural history films and amateur videos to estimate the prevalence of tusklessness prior to the war. PART 2: Video Activity . This film describes natural selection and adaptation in populations of rock pocket mice living in the American Southwest. Key Concepts. Knowledge awaits. One type of evidence they use is genetic data. Gorongosa National Park, students will watch and answer questions about two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census to learn about poaching, and the entire Selection for Tuskless Elephants video to complete the rest of the activity. Answers Biointeractive Hhmi - Effebi.biella.it. 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. Not all downloadable documents for the resource may be available in this format. The following statement reflects our current and specific actions. The resource is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license. But why werent there any tuskless males?. Articles that connect current events to BioInteractive resources. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. Learning Objectives & Practices: ERT-2.A, ERT-2.H, EIN-4.C, SP5, SP6, ELA.RST.9-12.7, ELA.WHST.9-12.1 Selection for Tuskless Elephants. This has left a notable gap in the literature that the new paper helps to fill. The Google Drive folder is set as View Only; to save a copy of a document in this folder to your Google Drive, open that document, then select File Make a copy. These documents can be copied, modified, and distributed online following the Terms of Use listed in the Details section below, including crediting BioInteractive. Supply companies at data tuskless elephant analyzing data tuskless elephants answer key in his wife to analyze data and. 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. 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 Tuskless mothers, on the other hand, had about an equal proportion of daughters with or without tusks (or, in some cases, with a single tusk). In particular, they often are missing their upper lateral incisorsthe anatomical equivalent of tusks in elephants. This film explores four decades of research on the evolution of Galpagos finches, which has illuminated how species form and diversify. 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. Genetics Evolution Scientific Skills & Literacy Scientists at Work High School General High School AP/IB College 0 There was a huge skew in the sex ratio, with very few adult males. 0 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. %%EOF 316 0 obj <>stream ea`|wC"bSfoxjtZ&T2(i+q,|:m!J@ dP6H EEH6~SlL.3a5, Online and in-person professional learning workshops led by educators. Use evidence-based predictions to explain how a population changes over time due to human impacts. This activity explores images of a coral bleaching event, which serve as phenomena for learning about marine ecosystems, human impacts, and climate change. Please see the Terms of Use for information on how this resource can be used. 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. 6. Perri Carr describes how she uses BioInteractives elephant resources to teach concepts ranging from biotechnology to genetics to ecology and conservation. a. BioInteractive is offering free workshops for high school and undergraduate life and environmental science educators. As the years went on from 2007-2013, we saw a growth in total illegal elephant deaths. 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. hb```f``z' B@QKm>%QXP^miq4YtnT50WS'.*^916SqKi"%df%IE400(wt@*06sx9 g! By watching segments of this video, students will follow the analyses and discoveries of Joyce Poole, a scientist who has studied elephants for many years. Determine whether scientific results confirm or contradict a hypothesis. Hear how educators are using BioInteractive content in their teaching. endstream endobj startxref |U#62RF>^/,[4@[S5MT3M_q+; u* Elephants were not an obvious choice for Campbell-Staton, who has mostly focused on lizards until now. 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. For context, this course consisted of a three-credit lecture and a one-credit lab. The Resource Google Folder link directs to a Google Drive folder of resource documents in the Google Docs format. After making these observations, Campbell-Staton decided it was time to use a whole-genome analysis to pinpoint the potential genetic factors. As you watch the videos, complete the questions from the "Task 1" handout. The same high-quality resources are now available with new features, including a logged-in experience. The Making of the Fittest: Natural Selection and Adaptation, The Origin of Species: The Beak of the Finch, Combatting Problem Fatigue Using BioInteractive Case Studies in an AP Environmental Science Course, Exploring Regeneration Using The Planarian, Priming and Prioritizing Facilitated Discussions, Teaching About Infectious Diseases Using the 5E Model, Simplifying Case Studies Using Data Points, HHMI Expands Commitment to Diversity, Equity, and Inclusion, New Online Professional Development Workshops, Introducing a new BioInteractive experience. 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. 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? endstream endobj startxref Propose a claim supported by scientific evidence to answer a research question. Watch the Selection for Tuskless Elephants video until time 1:46 and answer the following questions. 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. The Click & Learn uses ongoing debates about the eligibility of certain female athletes to participate in women's events as an entry point . Video Activity 7. This interactive module explores examples of how changes in one species can affect species at other trophic levels and ultimately the entire ecosystem. 415 0 obj <> endobj This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. 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