The Evolution of Humanity
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Impacts of Future Agricultural Change on Ecosystem Service Indicators Sam S
https://doi.org/10.5194/esd-2019-44 Preprint. Discussion started: 15 August 2019 c Author(s) 2019. CC BY 4.0 License. Impacts of future agricultural change on ecosystem service indicators Sam S. Rabin1, Peter Alexander2,3, Roslyn Henry2, Peter Anthoni1, Thomas A. M. Pugh4,5, Mark Rounsevell1, and Almut Arneth1 1Institute of Meteorology and Climate Research / Atmospheric Environmental Research, Karlsruhe Institute of Technology, Germany 2School of Geosciences, University of Edinburgh, UK 3Global Academy of Agriculture and Food Security, The Royal (Dick) School of Veterinary Studies, University of Edinburgh, UK 4School of Geography, Earth and Environmental Sciences, University of Birmingham, UK 5Birmingham Institute of Forest Research, University of Birmingham, UK Correspondence: Sam S. Rabin ([email protected]) Abstract. A future of increasing atmospheric carbon dioxide concentrations, changing climate, growing human populations, and shifting socioeconomic conditions means that the global agricultural system will need to adapt in order to feed the world. These changes will affect not only agricultural land, but terrestrial ecosystems in general. Here, we use the coupled land use and vegetation model LandSyMM to quantify future land use change and resulting impacts on ecosystem service indicators 5 including carbon sequestration, runoff, and nitrogen pollution. We additionally hold certain variables, such as climate or land use, constant to assess the relative contribution of different drivers to the projected impacts. While indicators of some ecosystem services (e.g., flood and drought risk) see trends that are mostly dominated by the direct effects of climate change, others (e.g., carbon sequestration) depend critically on land use and management. Scenarios in which climate change mitigation is more difficult (Shared Socioeconomic Pathways 3 and 5) have the strongest impacts on ecosystem service indicators, such as a loss 10 of 13–19% of land in biodiversity hotspots and a 28% increase in nitrogen pollution. -
Looking Ahead to 2050: Evolution of Agricultural Trade Policies
Looking Ahead to 2050: Evolution of Agricultural Trade Policies Tim Josling* The past four decades have seen remarkable developments in agricultural trade and in the policies and institutions that provide the environment for that trade. Agricultural trade has moved from being dominated by the purchase of raw materials from land-rich countries and those blessed with tropical climates to a complex network of marketing chains supplying food and other farm products to all corners of the world. The multilateral trade rules have evolved from informal codes of conduct for manufactured goods that had little impact on agricultural trade to a treaty-based agreement that determines in what form and by how much governments can intervene in agricultural markets at home and at the border. The regional trade rules that have been adopted in an explosion of preferential agreements also increasingly apply to agricultural and food trade, leading to a partial polarization of trade around several major markets. The task of this paper is to discuss future trends in agricultural and food trade policies. How are the institutions, domestic, regional or multilateral, likely to evolve over the next forty years? Will the emphasis be on consolidation of progress already made? Will globalization reach its ultimate endpoint of a borderless market for agricultural and food products with consumer choice determining trade flows along with the cool logic of sourcing from low-cost suppliers? Or are we likely to see trade evolve in different directions? Will we see a resurgence -
Hands-On Human Evolution: a Laboratory Based Approach
Hands-on Human Evolution: A Laboratory Based Approach Developed by Margarita Hernandez Center for Precollegiate Education and Training Author: Margarita Hernandez Curriculum Team: Julie Bokor, Sven Engling A huge thank you to….. Contents: 4. Author’s note 5. Introduction 6. Tips about the curriculum 8. Lesson Summaries 9. Lesson Sequencing Guide 10. Vocabulary 11. Next Generation Sunshine State Standards- Science 12. Background information 13. Lessons 122. Resources 123. Content Assessment 129. Content Area Expert Evaluation 131. Teacher Feedback Form 134. Student Feedback Form Lesson 1: Hominid Evolution Lab 19. Lesson 1 . Student Lab Pages . Student Lab Key . Human Evolution Phylogeny . Lab Station Numbers . Skeletal Pictures Lesson 2: Chromosomal Comparison Lab 48. Lesson 2 . Student Activity Pages . Student Lab Key Lesson 3: Naledi Jigsaw 77. Lesson 3 Author’s note Introduction Page The validity and importance of the theory of biological evolution runs strong throughout the topic of biology. Evolution serves as a foundation to many biological concepts by tying together the different tenants of biology, like ecology, anatomy, genetics, zoology, and taxonomy. It is for this reason that evolution plays a prominent role in the state and national standards and deserves thorough coverage in a classroom. A prime example of evolution can be seen in our own ancestral history, and this unit provides students with an excellent opportunity to consider the multiple lines of evidence that support hominid evolution. By allowing students the chance to uncover the supporting evidence for evolution themselves, they discover the ways the theory of evolution is supported by multiple sources. It is our hope that the opportunity to handle our ancestors’ bone casts and examine real molecular data, in an inquiry based environment, will pique the interest of students, ultimately leading them to conclude that the evidence they have gathered thoroughly supports the theory of evolution. -
Human Evolution: a Paleoanthropological Perspective - F.H
PHYSICAL (BIOLOGICAL) ANTHROPOLOGY - Human Evolution: A Paleoanthropological Perspective - F.H. Smith HUMAN EVOLUTION: A PALEOANTHROPOLOGICAL PERSPECTIVE F.H. Smith Department of Anthropology, Loyola University Chicago, USA Keywords: Human evolution, Miocene apes, Sahelanthropus, australopithecines, Australopithecus afarensis, cladogenesis, robust australopithecines, early Homo, Homo erectus, Homo heidelbergensis, Australopithecus africanus/Australopithecus garhi, mitochondrial DNA, homology, Neandertals, modern human origins, African Transitional Group. Contents 1. Introduction 2. Reconstructing Biological History: The Relationship of Humans and Apes 3. The Human Fossil Record: Basal Hominins 4. The Earliest Definite Hominins: The Australopithecines 5. Early Australopithecines as Primitive Humans 6. The Australopithecine Radiation 7. Origin and Evolution of the Genus Homo 8. Explaining Early Hominin Evolution: Controversy and the Documentation- Explanation Controversy 9. Early Homo erectus in East Africa and the Initial Radiation of Homo 10. After Homo erectus: The Middle Range of the Evolution of the Genus Homo 11. Neandertals and Late Archaics from Africa and Asia: The Hominin World before Modernity 12. The Origin of Modern Humans 13. Closing Perspective Glossary Bibliography Biographical Sketch Summary UNESCO – EOLSS The basic course of human biological history is well represented by the existing fossil record, although there is considerable debate on the details of that history. This review details both what is firmly understood (first echelon issues) and what is contentious concerning humanSAMPLE evolution. Most of the coCHAPTERSntention actually concerns the details (second echelon issues) of human evolution rather than the fundamental issues. For example, both anatomical and molecular evidence on living (extant) hominoids (apes and humans) suggests the close relationship of African great apes and humans (hominins). That relationship is demonstrated by the existing hominoid fossil record, including that of early hominins. -
Paranthropus Boisei: Fifty Years of Evidence and Analysis Bernard A
Marshall University Marshall Digital Scholar Biological Sciences Faculty Research Biological Sciences Fall 11-28-2007 Paranthropus boisei: Fifty Years of Evidence and Analysis Bernard A. Wood George Washington University Paul J. Constantino Biological Sciences, [email protected] Follow this and additional works at: http://mds.marshall.edu/bio_sciences_faculty Part of the Biological and Physical Anthropology Commons Recommended Citation Wood B and Constantino P. Paranthropus boisei: Fifty years of evidence and analysis. Yearbook of Physical Anthropology 50:106-132. This Article is brought to you for free and open access by the Biological Sciences at Marshall Digital Scholar. It has been accepted for inclusion in Biological Sciences Faculty Research by an authorized administrator of Marshall Digital Scholar. For more information, please contact [email protected], [email protected]. YEARBOOK OF PHYSICAL ANTHROPOLOGY 50:106–132 (2007) Paranthropus boisei: Fifty Years of Evidence and Analysis Bernard Wood* and Paul Constantino Center for the Advanced Study of Hominid Paleobiology, George Washington University, Washington, DC 20052 KEY WORDS Paranthropus; boisei; aethiopicus; human evolution; Africa ABSTRACT Paranthropus boisei is a hominin taxon ers can trace the evolution of metric and nonmetric var- with a distinctive cranial and dental morphology. Its iables across hundreds of thousands of years. This pa- hypodigm has been recovered from sites with good per is a detailed1 review of half a century’s worth of fos- stratigraphic and chronological control, and for some sil evidence and analysis of P. boi se i and traces how morphological regions, such as the mandible and the both its evolutionary history and our understanding of mandibular dentition, the samples are not only rela- its evolutionary history have evolved during the past tively well dated, but they are, by paleontological 50 years. -
Peter D. Ward – Curriculum Vitae Born May 12, 1949, Seattle Washington, USA Married, Two Children
1 Peter D. Ward – Curriculum Vitae Born May 12, 1949, Seattle Washington, USA Married, two children 1. Education B.S., 1971 Interdisciplinary Studies (Paleoecology), University of Washington, Seattle M.S., 1973 Geology, University of Washington, Seattle Ph.D., 1976 Geology, McMaster University, Hamilton, Ontario, Canada Employment 1976-1978 Assistant Professor, Department of Geology, Ohio State University 1978-1981 Assistant Professor, Department of Geology, University of California, Davis 1981-1983 Associate Professor with Tenure, Department of Geology and Division of Environmental Sciences, University of California, Davis 1982 Visiting Scientist, Laboratoire Arago (C.N.R.S.), Banyuls, France 1984 Professor, Department of Geology, University of California, Davis 1985 Associate Professor, University of Washington 1986 Professor, Department of Geological Sciences, and Adjunct Professor, Department of Zoology, University of Washington 1989- 1996 Curator of Invertebrate Paleontology, Thomas Burke Memorial Museum, University of Washington 1991. Visiting Scientist, South African Museum 1992-1996 Chairman and Head, Division of Geology and Paleontology, Thomas Burke Memorial Museum, University of Washington 2000. Visiting Scientist, South African Museum 2001 – present, Adjunct Professor, Department of Astronomy, University of Washington 2003- present, Professor, Dept. of Biology, and Professor, Department of Earth and Space Sciences, The University of Washington 2007- Adjunct Curator, Burke Museum of Natural History and Culture, University of -
Darwin and the Recent African Origin of Modern Humans
EDITORIAL Darwin and the recent African origin of modern humans Richard G. Klein1 Program in Human Biology, Stanford University, Stanford, CA 94305 n this 200th anniversary of When Darwin and Huxley were ac- The Course of Human Evolution Charles Darwin’s birth and tive, many respected scientists sub- In the absence of fossils, Darwin could the 150th anniversary of the scribed to the now discredited idea that not have predicted the fundamental pat- publication of his monumen- human races represented variably tern of human evolution, but his evolu- Otal The Origin of Species (1859) (1), it evolved populations of Homo sapiens. tionary theory readily accommodates seems fitting to summarize Darwin’s The original Neanderthal skull had a the pattern we now recognize. Probably views on human evolution and to show conspicuous browridge, and compared the most fundamental finding is that the how far we have come since. Darwin with the skulls of modern humans, it australopithecines, who existed from at famously neglected the subject in The was decidedly long and low. At the same least 4.5 million to 2 million years ago, Origin, except near the end where he time, it had a large braincase, and Hux- were distinguished from apes primarily noted only that ‘‘light would be thrown ley regarded it as ‘‘the extreme term of by anatomical specializations for habit- on the origin of man and his history’’ by a series leading gradually from it to the ual bipedalism, and it was only after 2 the massive evidence he had compiled highest and best developed of [modern] million years ago that people began to for evolution by means of natural selec- human crania.’’ It was only in 1891 that acquire the other traits, including our tion. -
Downloaded from the Beijing Climate Centre Climate System Modelling Version 1.1 (BCC–CSM 1.1) for Future Model Building
Article Impact of Past and Future Climate Change on the Potential Distribution of an Endangered Montane Shrub Lonicera oblata and Its Conservation Implications Yuan-Mi Wu , Xue-Li Shen, Ling Tong, Feng-Wei Lei, Xian-Yun Mu * and Zhi-Xiang Zhang Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China; [email protected] (Y.-M.W.); [email protected] (X.-L.S.); [email protected] (L.T.); [email protected] (F.-W.L.); [email protected] (Z.-X.Z.) * Correspondence: [email protected] Abstract: Climate change is an important driver of biodiversity patterns and species distributions, understanding how organisms respond to climate change will shed light on the conservation of endangered species. In this study, we modeled the distributional dynamics of a critically endangered montane shrub Lonicera oblata in response to climate change under different periods by building a comprehensive habitat suitability model considering the effects of soil and vegetation conditions. Our results indicated that the current suitable habitats for L. oblata are located scarcely in North China. Historical modeling indicated that L. oblata achieved its maximum potential distribution in the last interglacial period which covered southwest China, while its distribution area decreased for almost 50% during the last glacial maximum. It further contracted during the middle Holocene to a distribution resembling the current pattern. Future modeling showed that the suitable habitats of L. oblata contracted dramatically, and populations were fragmentedly distributed in these areas. Citation: Wu, Y.-M.; Shen, X.-L.; As a whole, the distribution of L. -
Carnival of Evolution #58: Visions of the Evolutionary Future Bradly Alicea Michigan State University
Carnival of Evolution #58: visions of the evolutionary future Bradly Alicea Michigan State University Originally published at: http://syntheticdaisies.blogspot.com on April 1, 2013 (http://syntheticdaisies.blogspot.com/2013/04/carnival-of-evolution-58-visions-of.html) Welcome to Carnival of Evolution! Now with albedo! Introduction What does the future look like? For some, the future is the place of constant progress and a place where dreams become reality. For others, the future is a scary, dystopian place. When actualized, however, future worlds fall somewhere in between these two visions. Can we make accurate projections about the future? As I pointed out in a Synthetic Daisies post from February [1], futurists and technologists have a pretty dismal track record at projecting future scenarios, and often get things notoriously wrong. UPPER LEFT: Ad from the 1982 opening of EPCOT Center, Florida. UPPER RIGHT: Dystopic future city from the movie "Idiocracy" (Inset is the cover of "Future Shock" by Alvin Toffler). BOTTOM LEFT: Bank of England Economic Forecast (circa 2011). BOTTOM RIGHT: New New York, circa 3000 (from the TV show "Futurama"). With visions of the future in mind, this month's Carnival of Evolution (#58) theme is the future of evolution. While a significant component of evolutionary biology involves reconstructing the past [2], we are actually (with error, of course) also predicting the future. Yet can we do any better than futurists or technologists? It is hard to say, and if you have opinions on this I would be glad to hear them. However, this month's CoE will address five themes that may (or may not) help us understand where the complexity of life is headed. -
Verhaegen M. the Aquatic Ape Evolves
HUMAN EVOLUTION Vol. 28 n.3-4 (237-266) - 2013 Verhaegen M. The Aquatic Ape Evolves: Common Miscon- Study Center for Anthropology, ceptions and Unproven Assumptions About Mechelbaan 338, 2580 Putte, the So-Called Aquatic Ape Hypothesis Belgium E-mail: [email protected] While some paleo-anthropologists remain skeptical, data from diverse biological and anthropological disciplines leave little doubt that human ancestors were at some point in our past semi- aquatic: wading, swimming and/or diving in shallow waters in search of waterside or aquatic foods. However, the exact sce- nario — how, where and when these semi-aquatic adaptations happened, how profound they were, and how they fit into the KEY WORDS: human evolution, hominid fossil record — is still disputed, even among anthro- Littoral theory, Aquarboreal pologists who assume some semi-aquatic adaptations. theory, aquatic ape, AAT, Here, I argue that the most intense phase(s) of semi-aquatic Archaic Homo, Homo erectus, adaptation in human ancestry occurred when populations be- Neanderthal, bipedalism, speech longing to the genus Homo adapted to slow and shallow littoral origins, Alister Hardy, Elaine diving for sessile foods such as shellfish during part(s) of the Morgan, comparative biology, Pleistocene epoch (Ice Ages), possibly along African or South- pachyosteosclerosis. Asian coasts. Introduction The term aquatic ape gives an incorrect impression of our semi-aquatic ancestors. Better terms are in my opinion the coastal dispersal model (Munro, 2010) or the littoral theory of human evolution, but although littoral seems to be a more appropriate biologi- cal term here than aquatic, throughout this paper I will use the well-known and common- ly used term AAH as shorthand for all sorts of waterside and semi-aquatic hypotheses. -
Australopiths Wading? Homo Diving?
Symposium: Water and Human Evolution, April 30th 1999, University Gent, Flanders, Belgium Proceedings Australopiths wading? Homo diving? http://allserv.rug.ac.be/~mvaneech/Symposium.html http://www.flash.net/~hydra9/marcaat.html Marc Verhaegen & Stephen Munro – 23 July 1999 Abstract Asian pongids (orangutans) and African hominids (gorillas, chimpanzees and humans) split 14-10 million years ago, possibly in the Middle East, or elsewhere in Eurasia, where the great ape fossils of 12-8 million years ago display pongid and/or hominid features. In any case, it is likely that the ancestors of the African apes, australopithecines and humans, lived on the Arabian-African continent 8-6 million years ago, when they split into gorillas and humans-chimpanzees. They could have frequently waded bipedally, like mangrove proboscis monkeys, in the mangrove forests between Eurasia and Africa, and partly fed on hard-shelled fruits and oysters like mangrove capuchin monkeys: thick enamel plus stone tool use is typically seen in capuchins, hominids and sea otters. The australopithecines might have entered the African inland along rivers and lakes. Their dentition suggests they ate mostly fruits, hard grass-like plants, and aquatic herbaceous vegetation (AHV). The fossil data indicates that the early australopithecines of 4-3 million years ago lived in waterside forests or woodlands; and their larger, robust relatives of 2-1 million years ago in generally more open milieus near marshes and reedbeds, where they could have waded bipedally. Some anthropologists believe the present-day African apes evolved from australopithecine-like ancestors, which would imply that knuckle-walking gorillas and chimpanzees evolved in parallel from wading- climbing ‘aquarborealists’. -
Anthropocene Dynamics in the Prehistoric Pacific Modeling Emergent Socioecological Outcomes of Environmental Change
Anthropocene Dynamics in the Prehistoric Pacific Modeling Emergent Socioecological Outcomes of Environmental Change Thomas P. Leppard i Abstract: How will human societies evolve in the face of the massive changes humans themselves are driving in the earth systems? Currently, few data exist with which to address this question. I argue that archaeological datasets from islands provide useful models for understanding long-term socioecological responses to large-scale environmental change, by virtue of their longitudinal dimension and their relative insulation from broader biophysical systems. Reviewing how colonizing humans initiated biological and physical change in the insular Pacific, I show that varied adaptations to this dynamism caused diversification in social and subsistence systems. This diversification shows considerable path dependency related to the degree of heterogeneity/homo- geneity in the distribution of food resources. This suggests that the extent to which the Anthropocene modifies agroeconomic land surfaces toward or away from patchiness will have profound sociopolitical implications. Keywords: Anthropocene, archaeology, human ecodynamics, model systems, socioecology o Introduction: The Transformative Anthropocene The behavior of our species is driving large-scale and linked change within the earth systems. This change is characterized by several fac- tors that distinguish it from previous types of planetary dynamism. It is extremely rapid, occurring faster than preanthropogenic earth systems reorganization by orders of magnitude; it is experienced along sev- eral dimensions; and it is accordingly observable in a series of prox- ies, including the sedimentological record. This interrelated series of physical, chemical, and biological processes is increasingly considered to constitute a separate geological epoch, the Anthropocene (Crutzen and Stormer 2000).