Origin of Species Lizards in an Evolutionary Tree Film Guide
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Buzzle – Zoology Terms – Glossary of Biology Terms and Definitions Http
Buzzle – Zoology Terms – Glossary of Biology Terms and Definitions http://www.buzzle.com/articles/biology-terms-glossary-of-biology-terms-and- definitions.html#ZoologyGlossary Biology is the branch of science concerned with the study of life: structure, growth, functioning and evolution of living things. This discipline of science comprises three sub-disciplines that are botany (study of plants), Zoology (study of animals) and Microbiology (study of microorganisms). This vast subject of science involves the usage of myriads of biology terms, which are essential to be comprehended correctly. People involved in the science field encounter innumerable jargons during their study, research or work. Moreover, since science is a part of everybody's life, it is something that is important to all individuals. A Abdomen: Abdomen in mammals is the portion of the body which is located below the rib cage, and in arthropods below the thorax. It is the cavity that contains stomach, intestines, etc. Abscission: Abscission is a process of shedding or separating part of an organism from the rest of it. Common examples are that of, plant parts like leaves, fruits, flowers and bark being separated from the plant. Accidental: Accidental refers to the occurrences or existence of all those species that would not be found in a particular region under normal circumstances. Acclimation: Acclimation refers to the morphological and/or physiological changes experienced by various organisms to adapt or accustom themselves to a new climate or environment. Active Transport: The movement of cellular substances like ions or molecules by traveling across the membrane, towards a higher level of concentration while consuming energy. -
Plant Evolution an Introduction to the History of Life
Plant Evolution An Introduction to the History of Life KARL J. NIKLAS The University of Chicago Press Chicago and London CONTENTS Preface vii Introduction 1 1 Origins and Early Events 29 2 The Invasion of Land and Air 93 3 Population Genetics, Adaptation, and Evolution 153 4 Development and Evolution 217 5 Speciation and Microevolution 271 6 Macroevolution 325 7 The Evolution of Multicellularity 377 8 Biophysics and Evolution 431 9 Ecology and Evolution 483 Glossary 537 Index 547 v Introduction The unpredictable and the predetermined unfold together to make everything the way it is. It’s how nature creates itself, on every scale, the snowflake and the snowstorm. — TOM STOPPARD, Arcadia, Act 1, Scene 4 (1993) Much has been written about evolution from the perspective of the history and biology of animals, but significantly less has been writ- ten about the evolutionary biology of plants. Zoocentricism in the biological literature is understandable to some extent because we are after all animals and not plants and because our self- interest is not entirely egotistical, since no biologist can deny the fact that animals have played significant and important roles as the actors on the stage of evolution come and go. The nearly romantic fascination with di- nosaurs and what caused their extinction is understandable, even though we should be equally fascinated with the monarchs of the Carboniferous, the tree lycopods and calamites, and with what caused their extinction (fig. 0.1). Yet, it must be understood that plants are as fascinating as animals, and that they are just as important to the study of biology in general and to understanding evolutionary theory in particular. -
Number of Living Species in Australia and the World
Numbers of Living Species in Australia and the World 2nd edition Arthur D. Chapman Australian Biodiversity Information Services australia’s nature Toowoomba, Australia there is more still to be discovered… Report for the Australian Biological Resources Study Canberra, Australia September 2009 CONTENTS Foreword 1 Insecta (insects) 23 Plants 43 Viruses 59 Arachnida Magnoliophyta (flowering plants) 43 Protoctista (mainly Introduction 2 (spiders, scorpions, etc) 26 Gymnosperms (Coniferophyta, Protozoa—others included Executive Summary 6 Pycnogonida (sea spiders) 28 Cycadophyta, Gnetophyta under fungi, algae, Myriapoda and Ginkgophyta) 45 Chromista, etc) 60 Detailed discussion by Group 12 (millipedes, centipedes) 29 Ferns and Allies 46 Chordates 13 Acknowledgements 63 Crustacea (crabs, lobsters, etc) 31 Bryophyta Mammalia (mammals) 13 Onychophora (velvet worms) 32 (mosses, liverworts, hornworts) 47 References 66 Aves (birds) 14 Hexapoda (proturans, springtails) 33 Plant Algae (including green Reptilia (reptiles) 15 Mollusca (molluscs, shellfish) 34 algae, red algae, glaucophytes) 49 Amphibia (frogs, etc) 16 Annelida (segmented worms) 35 Fungi 51 Pisces (fishes including Nematoda Fungi (excluding taxa Chondrichthyes and (nematodes, roundworms) 36 treated under Chromista Osteichthyes) 17 and Protoctista) 51 Acanthocephala Agnatha (hagfish, (thorny-headed worms) 37 Lichen-forming fungi 53 lampreys, slime eels) 18 Platyhelminthes (flat worms) 38 Others 54 Cephalochordata (lancelets) 19 Cnidaria (jellyfish, Prokaryota (Bacteria Tunicata or Urochordata sea anenomes, corals) 39 [Monera] of previous report) 54 (sea squirts, doliolids, salps) 20 Porifera (sponges) 40 Cyanophyta (Cyanobacteria) 55 Invertebrates 21 Other Invertebrates 41 Chromista (including some Hemichordata (hemichordates) 21 species previously included Echinodermata (starfish, under either algae or fungi) 56 sea cucumbers, etc) 22 FOREWORD In Australia and around the world, biodiversity is under huge Harnessing core science and knowledge bases, like and growing pressure. -
Evolution by Natural Selection, Formulated Independently by Charles Darwin and Alfred Russel Wallace
UNIT 4 EVOLUTIONARY PATT EVOLUTIONARY E RNS AND PROC E SS E Evolution by Natural S 22 Selection Natural selection In this chapter you will learn that explains how Evolution is one of the most populations become important ideas in modern biology well suited to their environments over time. The shape and by reviewing by asking by applying coloration of leafy sea The rise of What is the evidence for evolution? Evolution in action: dragons (a fish closely evolutionary thought two case studies related to seahorses) 22.1 22.4 are heritable traits that with regard to help them to hide from predators. The pattern of evolution: The process of species have changed evolution by natural and are related 22.2 selection 22.3 keeping in mind Common myths about natural selection and adaptation 22.5 his chapter is about one of the great ideas in science: the theory of evolution by natural selection, formulated independently by Charles Darwin and Alfred Russel Wallace. The theory explains how T populations—individuals of the same species that live in the same area at the same time—have come to be adapted to environments ranging from arctic tundra to tropical wet forest. It revealed one of the five key attributes of life: Populations of organisms evolve. In other words, the heritable characteris- This chapter is part of the tics of populations change over time (Chapter 1). Big Picture. See how on Evolution by natural selection is one of the best supported and most important theories in the history pages 516–517. of scientific research. -
Adaptation ×
This website would like to remind you: Your browser (Apple Safari 4) is out of date. Update your browser for more × security, comfort and the best experience on this site. Encyclopedic Entry adaptation For the complete encyclopedic entry with media resources, visit: http://education.nationalgeographic.com/encyclopedia/adaptation/ An adaptation is a mutation, or genetic change, that helps an organism, such as a plant or animal, survive in its environment. Due to the helpful nature of the mutation, it is passed down from one generation to the next. As more and more organisms inherit the mutation, the mutation becomes a typical part of the species. The mutation has become an adaptation. Structural and Behavioral Adaptations An adaptation can be structural, meaning it is a physical part of the organism. An adaptation can also be behavioral, affecting the way an organism acts. An example of a structural adaptation is the way some plants have adapted to life in the desert. Deserts are dry, hot places. Plants called succulents have adapted to this climate by storing water in their thick stems and leaves. Animal migration is an example of a behavioral adaptation. Grey whales migrate thousands of miles every year as they swim from the cold Arctic Ocean to the warm waters off the coast of Mexico. Grey whale calves are born in the warm water, and then travel in groups called pods to the nutrient-rich waters of the Arctic. Some adaptations are called exaptations. An exaptation is an adaptation developed for one purpose, but used for another. Feathers were probably adaptations for keeping the animal warm that were later used for flight, making feathers an exaptation for flying. -
Listing a Species As a Threatened Or Endangered Species Section 4 of the Endangered Species Act
U.S. Fish & Wildlife Service Listing a Species as a Threatened or Endangered Species Section 4 of the Endangered Species Act The Endangered Species Act of 1973, as amended, is one of the most far- reaching wildlife conservation laws ever enacted by any nation. Congress, on behalf of the American people, passed the ESA to prevent extinctions facing many species of fish, wildlife and plants. The purpose of the ESA is to conserve endangered and threatened species and the ecosystems on which they depend as key components of America’s heritage. To implement the ESA, the U.S. Fish and Wildlife Service works in cooperation with the National Marine Fisheries Service (NMFS), other Federal, State, and local USFWS Susanne Miller, agencies, Tribes, non-governmental Listed in 2008 as threatened because of the decline in sea ice habitat, the polar bear may organizations, and private citizens. spend time on land during fall months, waiting for ice to return. Before a plant or animal species can receive the protection provided by What are the criteria for deciding whether refer to these species as “candidates” the ESA, it must first be added to to add a species to the list? for listing. Through notices of review, the Federal lists of threatened and A species is added to the list when it we seek biological information that will endangered wildlife and plants. The is determined to be an endangered or help us to complete the status reviews List of Endangered and Threatened threatened species because of any of for these candidate species. We publish Wildlife (50 CFR 17.11) and the List the following factors: notices in the Federal Register, a daily of Endangered and Threatened Plants n the present or threatened Federal Government publication. -
Testing Sustainable Forestry Methods in Puerto Rico
Herpetology Notes, volume 8: 141-148 (2015) (published online on 10 April 2015) Testing sustainable forestry methods in Puerto Rico: Does the presence of the introduced timber tree Blue Mahoe, Talipariti elatum, affect the abundance of Anolis gundlachi? Norman Greenhawk Abstract. The island of Puerto Rico has one of the highest rates of regrowth of secondary forests largely due to abandonment of previously agricultural land. The study was aimed at determining the impact of the presence of Talipariti elatum, a timber species planted for forest enrichment, on the abundance of anoles at Las Casas de la Selva, a sustainable forestry project located in Patillas, Puerto Rico. The trees planted around 25 years ago are fast-growing and now dominate canopies where they were planted. Two areas, a control area of second-growth forest without T. elatum and an area within the T. elatum plantation, were surveyed over an 18 month period. The null hypothesis that anole abundance within the study areas is independent of the presence of T. elatum could not be rejected. The findings of this study may have implications when designing forest management practices where maintaining biodiversity is a goal. Keywords. Anolis gundlachi, Anolis stratulus, Puerto Rican herpetofauna, introduced species, forestry Introduction The secondary growth forest represents a significant resource base for the people of Puerto Rico, and, if At the time of Spanish colonization in 1508, nearly managed properly, an increase in suitable habitat one hundred percent of Puerto Rico was covered in for forest-dwelling herpetofauna. Depending on the forest (Wadsworth, 1950). As a result of forest clearing management methods used, human-altered agro- for agricultural and pastureland, ship building, and fuel forestry plantations have potential conservation wood, approximately one percent of the land surface value (Wunderle, 1999). -
Underutilized Resources for Studying the Evolution of Invasive Species During Their Introduction, Establishment, and Lag Phases
W&M ScholarWorks Arts & Sciences Articles Arts and Sciences 2010 Underutilized resources for studying the evolution of invasive species during their introduction, establishment, and lag phases Travis D. Marsico Jennifer W. Burt Erin K. Espeland George W. Gilchrist William & Mary, [email protected] Follow this and additional works at: https://scholarworks.wm.edu/aspubs Recommended Citation Marsico, T. D., Burt, J. W., Espeland, E. K., Gilchrist, G. W., Jamieson, M. A., Lindström, L., ... & Tsutsui, N. D. (2010). PERSPECTIVE: Underutilized resources for studying the evolution of invasive species during their introduction, establishment, and lag phases. Evolutionary Applications, 3(2), 203-219. This Article is brought to you for free and open access by the Arts and Sciences at W&M ScholarWorks. It has been accepted for inclusion in Arts & Sciences Articles by an authorized administrator of W&M ScholarWorks. For more information, please contact [email protected]. Evolutionary Applications ISSN 1752-4571 PERSPECTIVE Underutilized resources for studying the evolution of invasive species during their introduction, establishment, and lag phases Travis D. Marsico,1 Jennifer W. Burt,2 Erin K. Espeland,3 George W. Gilchrist,4 Mary A. Jamieson,5 Leena Lindstro¨ m,6 George K. Roderick,7 Sarah Swope,8 Marianna Szucs} 9 and Neil D. Tsutsui7 1 Department of Biological Sciences, Mississippi State University, Mississippi State, MS, USA 2 Department of Plant Sciences, University of California-Davis, Davis, CA, USA 3 Northern Plains Agricultural Research -
Phylogeny, Ecomorphological Evolution, and Historical Biogeography of the Anolis Cristatellus Series
Uerpetological Monographs, 18, 2004, 90-126 © 2004 by The Herpetologists' League, Inc. PHYLOGENY, ECOMORPHOLOGICAL EVOLUTION, AND HISTORICAL BIOGEOGRAPHY OF THE ANOLIS CRISTATELLUS SERIES MATTHEW C. BRANDLEY^''^'"' AND KEVIN DE QUEIROZ^ ^Sam Noble Oklahoma Museum of Natural History and Department of Zoology, The University of Oklahoma, Norman, OK 73072, USA ^Department of Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20,560, USA ABSTRACT: TO determine the evolutionary relationships within the Anolis cristatellus series, we employed phylogenetic analyses of previously published karyotype and allozyme data as well as newly collected morphological data and mitochondrial DNA sequences (fragments of the 12S RNA and cytochrome b genes). The relationships inferred from continuous maximum likelihood reanalyses of allozyme data were largely poorly supported. A similar analysis of the morphological data gave strong to moderate support for sister relationships of the two included distichoid species, the two trunk-crown species, the grass-bush species A. poncensis and A. pulchellus, and a clade of trunk-ground and grass-bush species. The results of maximum likelihood and Bayesian analyses of the 12S, cyt b, and combined mtDNA data sets were largely congruent, but nonetheless exhibit some differences both with one another and with those based on the morphological data. We therefore took advantage of the additive properties of likelihoods to compare alternative phylogenetic trees and determined that the tree inferred from the combined 12S and cyt b data is also the best estimate of the phylogeny for the morphological and mtDNA data sets considered together. We also performed mixed-model Bayesian analyses of the combined morphology and mtDNA data; the resultant tree was topologically identical to the combined mtDNA tree with generally high nodal support. -
California Native Birds
California Native Birds De Anza College Biology 6C: Ecology and Evoluon Bruce Heyer Red Tailed Hawk (Buteo Jamaicensis) Accipitridae (hawks) • Broad, rounded wings and a short, wide tail. • The tail is usually pale below and cinnamon‐red above • Flies in wide circles high above ground. • Brown above, and pale underbelly • Habitat: In open country, perch on fences, poles, trees, etc. 1 Turkey Vulture Cathartes aura Cathardae (vultures) • Large dark birds, have a featherless red head and pale bill. Dark feathers (brown, look black from father). Have pale underside of feathers (“two‐ tone” appearance) • Commonly found in open areas. • Very few wing beats, characterisc soaring. California Quail Callipepla californica Phasianidae (partridges) • Plump, short‐necked game birds with a small head and bill. They fly on short, very broad wings. Both sexes have a comma‐ shaped topknot of feathers projecng forward from the forehead. • Adult males are rich gray and brown, with a black face outlined with bold white stripes. Females are a plainer brown and lack the facial markings. Both sexes have a paern of white, creamy, and chestnut scales on the belly. • Live in scrublands and desert areas. • Diet consists of seeds, some vegetaon, and insects 2 Mourning Dove Zenaida macroura Columbidae (doves) • Plump bodies, small bill and short legs. Pointed tail. Usually greyish‐tan with black spots on wings. White ps to tail feathers. • Beat wings rapidly, and powerfully. • Found everywhere. • Usually feeds on seeds. Rock Dove (Pigeon) Columba livia Columbidae (doves) • Larger than mourning doves, large bodies, small heads and feet. Wide, rounded tails and pointed wings. • Generally blue‐gray, with iridescent throat feathers, bright feet. -
In the Face of Accelerating Habitat Loss and an Increasing Human
ABSTRACT Borkhataria, Rena Rebecca. Ecological and Political Implications of Conversion from Shade to Sun Coffee in Puerto Rico. (Under the direction of Jaime Collazo.) Recent studies have shown that biodiversity is greater in shaded plantations than in sun coffee plantations, yet many farmers are converting to sun coffee varieties to increase short-term yields or to gain access to economic incentives. Through conversion, ecosystem complexity may be reduced and ecological services rendered by inhabitants may be lost. I attempted to quantify differences in abundances and diversity of predators in sun and shade coffee plantations in Puerto Rico and to gain insight into the ecological services they might provide. I also interviewed coffee farmers to determine the factors influencing conversion to sun coffee in Puerto Rico and to examine their attitudes toward the conservation of wildlife. Avian abundances were significantly higher in shaded coffee than in sun (p = 0.01) as were the number of species (p = 0.09). Avian species that were significantly more abundant in shaded coffee tended to be insectivorous, whereas those in sun coffee were granivorous. Lizard abundances (all species combined) did not differ significantly between plantations types, but Anolis stratulus was more abundant in sun plantations and A. gundlachi and A. evermanni were present only in shaded plantations. Insect abundances (all species combined) were significantly higher in shaded coffee (p = 0.02). I used exclosures in a shaded coffee plantation to examine the effects of vertebrate predators on the arthropods associated with coffee, in particular the coffee leaf miner (Leucoptera coffeela) and the flatid planthopper Petrusa epilepsis, in a shaded coffee plantation in Puerto Rico. -
Pseudemys Concinna
2QWRJHQ\RIP\RVLQLVRIRUPH[SUHVVLRQDQGSUHKHQVLOHIXQFWLRQLQWKHWDLORIWKHJUH\ VKRUWWDLOHGRSRVVXP Monodelphis domestica E\ '\ODQ57KRPDV 6XEPLWWHGLQ3DUWLDO)XOILOOPHQWRIWKH5HTXLUHPHQWV IRUWKH'HJUHHRI 0DVWHURI6FLHQFH LQWKH %LRORJLFDO6FLHQFHV 3URJUDP <281*672:167$7(81,9(56,7< 'HFHPEHU 2QWRJHQ\RIP\RVLQLVRIRUPH[SUHVVLRQDQGSUHKHQVLOHIXQFWLRQLQWKHWDLORIWKHJUH\ VKRUWWDLOHGRSRVVXP Monodelphis domestica '\ODQ57KRPDV ,KHUHE\UHOHDVHWKLVWKHVLVWRWKHSXEOLF,XQGHUVWDQGWKDWWKLVWKHVLVZLOOEHPDGH DYDLODEOHIURPWKH2KLR/,1.(7'&HQWHUDQGWKH0DDJ/LEUDU\&LUFXODWLRQ'HVNIRU SXEOLFDFFHVV,DOVRDXWKRUL]HWKH8QLYHUVLW\RURWKHULQGLYLGXDOVWRPDNHFRSLHVRIWKLV WKHVLVDVQHHGHGIRUVFKRODUO\UHVHDUFK 6LJQDWXUH Dylan R. Thomas6WXGHQW 'DWH $SSURYDOV Dr. Michael T. Butcher7KHVLV$GYLVRU 'DWH Dr. Mark D. Womble&RPPLWWHH0HPEHU 'DWH Dr. Gary R. Walker&RPPLWWHH0HPEHU 'DWH Dr. Sal Sanders$VVRFLDWH'HDQ6FKRRORI*UDGXDWH6WXGLHV 'DWH '\ODQ57KRPDV ABSTRACT 7HUUHVWULDO RSRVVXPV XVH WKHLU VHPLSUHKHQVLOH WDLO IRU JUDVSLQJ QHVWLQJ PDWHULDOV DV RSSRVHG WR ORFRPRWRU PDQHXYHULQJ 7KH REMHFWLYH RI WKLV VWXG\ LV WR UHODWH WKH GHYHORSPHQWRIWKLVDGDSWLYHEHKDYLRUZLWKRQWRJHQHWLFFKDQJHVLQP\RVLQKHDY\FKDLQ 0+& JHQH UHJXODWLRQ DQG LVRIRUP H[SUHVVLRQLQ WKH WDLO IURP ZHHNV WR DGXOWKRRG Monodelphis domestica LVH[SHFWHGWRGHPRQVWUDWHDSURJUHVVLYHDELOLW\WRIOH[WKHWDLOXS WR DJH PRQWKV ZKHQ LW ZLOO KDYH IXOO XVH RI LWV WDLO DQG VKRXOG H[KLELW URXWLQH QHVW FRQVWUXFWLRQ:HK\SRWKHVL]HWKDWMXYHQLOHVWDJHV ±PRQWKV ZLOOEHFKDUDFWHUL]HGE\ UHWHQWLRQ RI WKH IDVW QHRQDWDO