practice performance task tusklessness in african elephants answer key

About this Quiz & Worksheet. there are always some tuskless elephants,” says Dr. Joyce Poole. “Elephants carry a gene for tusklessness, so in most populations Course Hero, Inc. There is a lot of content vocabulary that is new to my students, that is why I created a PowerPoint, African Elephants Introduction, to help reach the different learning styles in my classroom and help convey this content in a way they could relate to.During the lesson, we were concentrating on the adaptations that are readily apparent on the African Elephant. Key words: African elephant, tusklessness, bottleneck, genetic drift, Addo INTRODUCTION The absence of tusks among Asian elephants Elephas maximus is not unusual: all females are tuskless or have PERFORMANCE Action Plan (African elephant range states, 2010), which provides objectives, strategies, and ac-tivities for the conservation and management of Africa’s elephants. A 1991 elephant, conservation plan in Uganda reported a higher-than-normal, percentage of tuskless elephants in Queen Elizabeth National, Park and singled out poaching as the main cause. conservation plan in Uganda reported a higher-than-normal A practice exam paper for the new AQA GCSE English Language Paper 2A: Writers' Viewpoints and Perspectives, linked by the theme of 'Elephants', using an extract from an autobiographical essay written by George Orwell in 1936 and a 21st C tabloid online newspaper article regarding the exposure of animal cruelty suffered by England's last circus elephant. Pre-AP Biology BIO_U2_SR.indd 30 30 Student Resource © 2021 College Board 25/03/20 9:34 PM Practice Performance Task: Tusklessness in African Elephants Foundation. Select from "one - right" or "one - left". 78 (b) What is the frequency of tusklessness in the male population? The prevalence of tusklessness is usually higher in female than in male elephants, and this phenomenon appears to be exacerbated by … This is why there's a 1995). It includes elephant craft, nonfiction unit booklet, lap book, worksheets, answer key, graphic organizers, and writing activities. “Because males require tusks for fighting, tusklessness has been selected against in males and very few males are tuskless. These data are then used to test hypotheses of possible causes of this tusklessness. Masters Thesis, University of Bristol (email info@elephantsforafrica.org for a PDF) In Gorongosa National… African elephants are in crisis, facing an onslaught of poaching for the valuable ivory in their tusks. largely as a result of illegal hunting for ivory. in each sentence. The phenomenon of tuskless elephants can lead students to figure out many scientific concepts including: natural selection, adaptation, genetics, ecology, and human impact. Tusks has also been selected by the female This The African Elephant: Reading Comprehension Worksheet is suitable for 3rd - 4th Grade. Tusklessness is very rare in males, but more common in females. (Nautilus) Learn more about the natural and unnatural history of the African elephant with our video study guide. Decades ago, some 4,000 elephants lived in Gorongosa, says Joyce Poole—an elephant behaviour expert and National Geographic Explorer who studies the park’s pachyderms. Then it curls its trunk under, sticks the tip of its trunk into its mouth, and blows. PERFORMANCE African Elephants PRACTICE a normal level of tusklessness in an elephant population is African elephants, tuskless males have a much harder time Photo C1; An elephant with only one tusk is known as a "one-tusker". African Journal of Ecology, 50, 277-284 (Download PDF) Ofithile, M. (2012) Seasonal effects on the ecology and sociality of male African elephants (Loxodonta africana) in the Okavango Delta, Botswana. so that also affects it. Frequencies of tusklessness in males and females differ, because of Unit 2: Evolution Practice Performance Task: Tusklessness in difference between the male tuskless elephants, and the female ones Student Resource And because male elephants fight and use Understand how habitat loss affects African elephants Skills Practiced Understanding key ideas - make sure you can correct explain key terms, such as chili bombs and poachers A. Bame Nsamenang and Therese M.S. More than 50,000 were likely killed in … The majority (98%) of the 174 female elephants in South Africa's Addo Elephant National Park are tuskless. There is a lot of content vocabulary that is new to my students, that is why I created a PowerPoint, African Elephants Introduction, to help reach the different learning styles in my classroom and help convey this content in a way they could relate to.During the lesson, we were concentrating on the adaptations that are readily apparent on the African Elephant. frequency calculations. Since African elephants live where the sun is usually blazing hot, they use their trunks to help them keep cool. For example, African elephants appear in jewelry such as rings and bracelets that are made from elephant’s hair to ward off evil spirits or magic. Habitat & Range. 38.2 percent in 1989—the peak of the previous ivory wars— Course Hero, Inc. Park and singled out poaching as the main cause. For each question, be sure to show your work and View SCIENCE Tuskless elephants may be a response to the selective pressure of poaching. For African elephants, tuskless males have a much harder time breeding and do not pass on their genes … male and female elephant populations tend to differ. i_BIO_SR_U2_PracticePerformanceTask_Elephants (2).pdf - Practice Performance Task Tusklessness in African Elephants Unit 2 Evolution Practice, View Out comes the water, right down the elephant's throat. “Because males require tusks for fighting, tusklessness has been A 2008 paper published in the African Journal of Ecology noted that the number of tuskless female elephants in Zambia’s South Luangwa National Park and adjacent Lupande Game Management Area had increased from 10.5 percent in 1969 to 38.2 percent in 1989—the peak of the previous ivory wars—largely as a result of illegal hunting for ivory. Tusklessness is off the charts in Addo Elephant National Park in South Africa. The use of the term “conflict” has become mainstream world-over to describe interactions between wild animals and people that result in loss of life (of one or both) or loss of property. Elephants are found in 37 countries in sub-Saharan Africa although their distribution varies considerably with the majority of their range remaining only in parts of Central, Eastern and Southern Africa. animals in the population increases as poaching continues.   Terms. The AEAP recognizes the fun-damental importance of monitoring progress and performance through constant reassessment of information on the status of the species throughout its range. Tusklessness is a part of a natural genetic variation in female African elephants. This preview shows page 1 out of 3 pages. in this population of elephants. Explain why the frequency of the tusklessness trait is increasing in the African selected against in males and very few males are tuskless. Full Document, Elephant Tusks Case Study- Mia Zendejas.pdf, Copy of More Elephants Are Being Born Tuskless Thanks to Poaching, Ocoee High School • AP WORLD HISTORY 101, Empire State College, SUNY • BME 214754, Developing an Explanation for Tuskless Elephants Student Handout.pdf, Hong Kong International School • BIOLOGY 1110, Holly Springs High School • BIOLOGY 101, Copyright © 2021. Course Hero is not sponsored or endorsed by any college or university. © 2021 College Board BIO_U2_SR.indd 29 29 Pre-AP Biology 25/03/20 9:34 PM Practice Performance Task: Tusklessness in African Elephants In this comprehension activity, students read a short paragraph about the African Elephant, then answer 5 multiple choice questions. males.” In heavily poached populations, says Poole, the ratio of tuskless The phenomenon of tuskless elephants can lead students to figure out many scientific concepts including: natural selection, adaptation, genetics, ecology, and human impact. Most African elephants have two tusks. Long‐term records are used to assess trends in tusklessness in this elephant population throughout the 20th century. When an elephant drinks, it sucks as much as 2 gallons (7.5 liters) of water into its trunk at a time. African elephants Handout - 16 pages. percentage of tuskless elephants in Queen Elizabeth National Ugandan report, a 1989 survey of Queen Elizabeth National Park This website and its content is subject to our Terms and Conditions. Teachers, scroll down for a quick list of key resources in our Teachers Toolkit. And in fact it turns out to be quite a complex tale. their tusk for the females natural selection also has a role in this. Tanzania has a large elephant range, encompassing almost 400,000km², which is just under half of the total area of the country. This activity builds on information presented in the video Selection for Tuskless Elephants. PERFORMANCE In African fables, African elephants are viewed as the wise leaders, who settle debates among the other forest animals. Tchombe Handbook of African Educational Theories and Practices A Generative Teacher Education Curriculum HUMAN DEVELOPMENT RESSOURCE CENTRE (H.D.R.C.) TASK A 2008 paper published in the African Journal of Ecology PRACTICE Management Area had increased from 10.5 percent in 1969 to In populations with little poaching, between two and six percent of females might be tuskless. Full Document. Unit 2: Evolution 3. i_BIO_SR_U2_PracticePerformanceTask_Elephants.pdf - Practice Performance Task Tusklessness in African Elephants Unit 2 Evolution Practice Performance, Practice Performance Task: Tusklessness in African Elephants, Practice Performance Task: Tusklessness in, noted that the number of tuskless female elephants in Zambia’s, South Luangwa National Park and adjacent Lupande Game, Management Area had increased from 10.5 percent in 1969 to, 38.2 percent in 1989—the peak of the previous ivory wars—, largely as a result of illegal hunting for ivory. But I also noted that this was probably not the full story! In an earlier post I mentioned that natural selection (hunting pressure) had the potential to increase the proportion of tusklessness in African elephants. revealed tusklessness in the elephant population to be between 9 Population Males Tusked elephants 182 243 425 Tuskless elephants 78 27 105 260 270 Total number of elephants 530 (a) What is the frequency of tusklessness in the female population? Their current rate of decline is 8% per year, primarily due to illegal killing called poaching. © 2021 College Board BIO_U2_SR.indd 31 31 Pre-AP Biology 25/03/20 9:34 PM ... of the following conjunctions: but, because, so. The African Elephant population has decreased by around 90% in the last century. Using the data table below, calculate the frequency of tusklessness percent and 25 percent. For a start, male & female African elephants […] TASK Frequencies of tusklessness in males and females differ, because of poaching populations. Course Hero is not sponsored or endorsed by any college or university. Justify your answer using the principles of natural Most African elephants have tusks, but some — about 2% to 6% of females and even fewer males — never grow them. Whereas, a normal level of tusklessness in an elephant population is, somewhere between 3 percent and 4 percent, according to the, Ugandan report, a 1989 survey of Queen Elizabeth National Park, revealed tusklessness in the elephant population to be between 9. Unformatted text preview: Practice Performance Task: Tusklessness in African Elephants somewhere between 3 percent and 4 percent, according to the Each sentence should use evidence from the text and/or your National Park in Mozambique to see how the African elephant population may Adapted from Kathleen Garigan, “Going Tuskless.” © 2015 by African Wildlife For elephant population. Dr. Joyce Poole and her research team also conduct studies in Gorongosa round to the nearest whole number when needed. poaching populations. Copyright © 2021. TASK 1. This preview shows page 1 - 2 out of 3 pages. Unit 2: Evolution PRACTICE The expression of tusklessness involves sex‐influenced penetrance and expressivity (Jachmann et al. African elephants are being born without tusks due to poaching, researchers say. The human population of Tanzania was almost 54.5 million in 2015, which is a about a 30% increase since 2007. population? But those numbers dwindled to triple digits following the civil war. South Luangwa National Park and adjacent Lupande Game Here in the early 1900s, hunter P. J. Pretorius killed nearly 100 elephants, leaving only 11.   Privacy Elephants also carry a gene for tusklessness, In each sentence use one African elephants are highly intelligent animals that play a key role in maintaining African forest and grassland ecosystems. A 1991 elephant Unformatted text preview: Practice Performance Task: Tusklessness in African Elephants Unit 2: Evolution Practice Performance Task: Tusklessness in African Elephants PRACTICE PERFORMANCE TASK A 2008 paper published in the African Journal of Ecology noted that the number of tuskless female elephants in Zambia’s South Luangwa National Park … The majority (98%) of the 174 female elephants in South Africa's Addo Elephant National Park are tuskless. As of 2014, about 350,000 savanna elephants were living in Africa. What to look for when using ear notches and tears to identify African elephants . Females Total   Terms. Write three sentences that help explain why the frequencies of tusklessness in 27 (c) What is the overall frequency of tusklessness in the total elephant be changing. Normally, tusklessness would occur only in about 2 to 4 percent of female African elephants. In Ruaha, for example, researchers have found tusklessness in about 35 percent of elephants 25 years or older. There is one additional pretext put forth by southern African countries to trade ivory today: “conflict” between elephants and people. Tusklessness in African Elephants PART I: INTRODUCTION A survey of African savanna elephants revealed that populations declined by 30% between 2007 and 2014. elephants, so very males have been tuskless.   Privacy “Elephants carry a gene for tusklessness, so in most populations there are always some tuskless elephants,” says Dr. Joyce Poole. "Whereas for female elephants, there's always been a background level of tusklessness in most elephant populations that aren't subjected to poaching pressure." Elephants are of great cultural importance to Africa. Photo C2; Elephants without tusks are "tuskless". RESEARCH - SERVICE - CONSULTANCY Whereas Students use scientific evidence and reasoning to construct an explanation of and develop an argument for tusklessness in elephant populations. noted that the number of tuskless female elephants in Zambia’s 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. An estimated 415,000 currently remain. Answers provided. breeding and do not pass on their genes as often as tusked selection. Long-term records are used to assess trends in tusklessness … Discussion Ideas Most African elephants have tusks. Skin color C. Ancestry D. Genes E. All of the above F. None of the above F. … Normally, tusklessness would occur only in about 2 to 4 percent of female African elephants. Include a different conjunction 105 2. Student Resource The rapid increase in the frequency of tusklessness during the past 70 years provides a phenotypic indicator of underlying genetic drift. Quick list of key resources in our teachers Toolkit are used to test hypotheses of possible causes this... In each sentence use one of the African elephant population has decreased by around 90 % in frequency... Population of elephants 25 years or older is very rare in males and females,... Sticks the tip of its trunk at a time any college or university are being born without tusks to. Sun is usually blazing hot, they use their tusk for the natural... For each question, be sure to show your work and round to the nearest whole number when needed 2! Tusk for the females natural selection “ elephants carry a gene for tusklessness in 35! Little poaching, between two and six percent of females might be tuskless so very males been. Curls its trunk into its mouth, and writing activities only one tusk is known as a one-tusker... Park in South Africa 's Addo elephant National Park are tuskless hunter P. J. Pretorius killed nearly elephants...: but, because of poaching for the valuable ivory in their tusks research - SERVICE - CONSULTANCY African... Question, be sure to show your work and round to the nearest whole number when needed is 8 per! Females might be tuskless sure to show your work and round to nearest... Living in Africa be tuskless by any college or university elephants live the! Its mouth, and writing activities then it curls its trunk at a time of 2014, 350,000! National… in Ruaha practice performance task tusklessness in african elephants answer key for example, researchers have found tusklessness in the early 1900s, hunter P. J. killed. Where the sun is usually blazing hot, they use their trunks to them... With only one tusk is known as a `` one-tusker '' is off the charts in Addo elephant Park... Craft, nonfiction unit booklet, lap book, worksheets, answer key, graphic organizers, and activities... And writing activities ( Nautilus ) Learn more practice performance task tusklessness in african elephants answer key the natural and unnatural history the. South Africa 's Addo elephant National Park in South Africa natural genetic variation in female elephants. And unnatural history of the total elephant population in maintaining African forest and ecosystems... Involves sex‐influenced penetrance and expressivity practice performance task tusklessness in african elephants answer key Jachmann et al between two and six percent of 25! Mouth, practice performance task tusklessness in african elephants answer key writing activities activity, students read a short paragraph the... One - right '' or `` one - right '' or `` -! It includes elephant craft, nonfiction unit booklet, practice performance task tusklessness in african elephants answer key book, worksheets, answer,! Causes of this tusklessness under, sticks the tip of its trunk,. Trait is increasing in the male population very few males are tuskless or endorsed by college... For a quick list of key resources in our teachers Toolkit at a time any or!, between two and six percent of females might be tuskless current rate of decline is %... ( b ) What is the overall frequency of tusklessness involves sex‐influenced penetrance and expressivity ( et! College or university with our video study guide RESSOURCE CENTRE ( H.D.R.C. students use scientific evidence and reasoning construct. To the nearest whole number when needed 5 multiple choice questions, graphic organizers, blows! Activity, students read a short paragraph about the African elephant population throughout 20th... A short paragraph about the natural and unnatural history of the 174 female elephants in Africa. Almost 400,000km², which is just under half of the 174 female elephants in South Africa 's elephant... - right '' or `` one - right '' or `` one left... Round to the selective pressure of poaching populations 25 years or older during the past 70 years provides phenotypic! In tusklessness in males and very few males are tuskless tusks are `` tuskless '' always tuskless. Play a key role in maintaining African forest and grassland ecosystems some elephants. Evolution Practice, View full Document rate of decline is 8 % year!, nonfiction unit booklet, lap book, worksheets, answer key, graphic organizers, and.. Female African elephants unit 2 Evolution Practice, View full Document the male population is. Trunks to help them keep cool, answer key, graphic organizers, and blows answer using the data below... The rapid increase in the early 1900s, hunter P. J. Pretorius killed nearly 100 elephants, so also! For tusklessness in the male population have been tuskless the wise leaders, who settle debates among the other animals... “ because males require tusks for fighting, tusklessness has been selected against in males and very few males tuskless! Primarily due to poaching, between two and six percent of females be... An onslaught of poaching the valuable ivory in their tusks causes of this tusklessness this of. Reading Comprehension Worksheet is suitable for 3rd - 4th Grade debates among the other forest animals total population! A Generative Teacher Education Curriculum HUMAN DEVELOPMENT RESSOURCE CENTRE ( H.D.R.C. causes this! Gorongosa National… in Ruaha, for example, researchers say are being born without tusks to! Majority ( 98 % ) of the following conjunctions: but, because of populations... Which is a about a 30 % increase since 2007 are in crisis, facing onslaught. So that also affects it is a part of a natural genetic variation in African. Students read a short paragraph about the natural and unnatural history of the total area of the conjunctions. Elephant with our video study guide variation in female African elephants Jachmann et al Practices Generative... As the wise leaders, who settle debates among the other forest animals them keep cool 50,000 were likely in! C2 ; elephants without tusks are `` tuskless '' writing activities the natural and unnatural history of following. 1900S, hunter P. J. Pretorius killed nearly 100 elephants, ” says Dr. Joyce Poole in teachers... Noted that this was probably not the full story and expressivity ( Jachmann et.... Be sure to show your work and round to the selective pressure of poaching populations males tuskless. Much as 2 gallons ( 7.5 liters ) of the total area of the following conjunctions but. Killed in … this preview shows page 1 - 2 out of 3 pages multiple choice questions with video... Female elephants in South Africa 's Addo elephant National Park are tuskless tusklessness! Unit 2 Evolution Practice, View full Document of key resources in our teachers Toolkit sun. Sentence should use evidence from the text and/or your frequency calculations elephants and. Of females might be tuskless CONSULTANCY the African elephant with our video study guide Generative... Females natural selection also has a role in this elephant population in 35. Been selected by the female elephants in South Africa 90 % in the frequency of the following conjunctions but! Among the other forest animals is suitable for 3rd - 4th Grade here in the early 1900s, P.....Pdf practice performance task tusklessness in african elephants answer key Practice PERFORMANCE TASK tusklessness in the frequency of tusklessness in males and very few males tuskless. Handbook of African Educational Theories and Practices a practice performance task tusklessness in african elephants answer key Teacher Education Curriculum HUMAN RESSOURCE. African fables, African elephants are being born without tusks are `` tuskless '' lap book, worksheets, key... Intelligent animals that play a key role in maintaining African forest and grassland ecosystems to differ area of country., primarily due to illegal killing called poaching Africa 's Addo elephant National Park are tuskless the charts in elephant! And because male elephants fight and use their tusk for the females natural selection, researchers.... Hypotheses of possible causes of this tusklessness booklet, lap book, worksheets, answer key, graphic,! Paragraph about the natural and unnatural history of the following conjunctions: but, because, so also a. Is the frequency of tusklessness in this elephant population of this tusklessness data... Select from `` one - right '' or `` one - right or! Numbers dwindled to triple digits following the civil war the frequencies of tusklessness during the past years. Without tusks are `` tuskless '' not sponsored or endorsed by any college or university National… in Ruaha for... 1 out of 3 pages and unnatural history of the total elephant population throughout the century... Endorsed by any college or university use evidence from the text and/or your frequency calculations to test of... Garigan, “Going Tuskless.” © 2015 by African Wildlife Foundation African elephants are viewed the... One tusk is known as a `` one-tusker '' water, right the..., right down the elephant 's throat indicator of underlying genetic drift our Terms and Conditions writing activities this!, worksheets, answer key, graphic organizers, and writing activities because of poaching populations sex‐influenced penetrance and (. About 350,000 savanna elephants were living in Africa down for a quick list of key resources in our teachers.... ).pdf - Practice PERFORMANCE TASK tusklessness in males and very few males are tuskless of into... I also noted that this was probably not the full story in maintaining African forest and ecosystems! Using the principles of natural selection also has a large elephant range, almost. Large elephant range, encompassing almost 400,000km², which is practice performance task tusklessness in african elephants answer key under half the! Have found tusklessness in the last century and because male elephants fight and use their trunks to help them cool. Subject to our Terms and Conditions so that also affects it b ) What is the frequency of in. Water into its mouth, and blows help explain why the frequencies of tusklessness in the total area of tusklessness. Elephants carry a gene for tusklessness, so populations with little poaching, between two and percent. Almost 54.5 million in 2015, which is just under half of the.! Unnatural history of the total elephant population has decreased by around 90 % in the male population for,!

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