Anti-Predator Coloration Symposium
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Geographic and Individual Variation in Carotenoid Coloration in Golden-Crowned Kinglets (Regulus Satrapa)
University of Windsor Scholarship at UWindsor Electronic Theses and Dissertations Theses, Dissertations, and Major Papers 2009 Geographic and individual variation in carotenoid coloration in golden-crowned kinglets (Regulus satrapa) Celia Chui University of Windsor Follow this and additional works at: https://scholar.uwindsor.ca/etd Recommended Citation Chui, Celia, "Geographic and individual variation in carotenoid coloration in golden-crowned kinglets (Regulus satrapa)" (2009). Electronic Theses and Dissertations. 280. https://scholar.uwindsor.ca/etd/280 This online database contains the full-text of PhD dissertations and Masters’ theses of University of Windsor students from 1954 forward. These documents are made available for personal study and research purposes only, in accordance with the Canadian Copyright Act and the Creative Commons license—CC BY-NC-ND (Attribution, Non-Commercial, No Derivative Works). Under this license, works must always be attributed to the copyright holder (original author), cannot be used for any commercial purposes, and may not be altered. Any other use would require the permission of the copyright holder. Students may inquire about withdrawing their dissertation and/or thesis from this database. For additional inquiries, please contact the repository administrator via email ([email protected]) or by telephone at 519-253-3000ext. 3208. GEOGRAPHIC AND INDIVIDUAL VARIATION IN CAROTENOID COLORATION IN GOLDEN-CROWNED KINGLETS ( REGULUS SATRAPA ) by Celia Kwok See Chui A Thesis Submitted to the Faculty of Graduate Studies through Biological Sciences in Partial Fulfillment of the Requirements for the Degree of Master of Science at the University of Windsor Windsor, Ontario, Canada 2009 © 2009 Celia Kwok See Chui Geographic and individual variation in carotenoid coloration in golden-crowned kinglets (Regulus satrapa ) by Celia Kwok See Chui APPROVED BY: ______________________________________________ Dr. -
INTERNATIONAL JOURNAL of RESEARCH –GRANTHAALAYAH a Knowledge Repository Art
[Conference-Composition of Colours :December , 2014 ] ISSN- 2350-0530 DOI: https://doi.org/10.29121/granthaalayah.v2.i3SE.2014.3515 INTERNATIONAL JOURNAL of RESEARCH –GRANTHAALAYAH A knowledge Repository Art PROTECTIVE COLORATION IN ANIMALS Leena Lakhani Govt. Girls P.G. College, Ujjain (M.P.) India [email protected] INTRODUCTION Animals have range of defensive markings which helps to the risk of predator detection (camouflage), warn predators of the prey’s unpalatability (aposematism) or fool a predator into mimicry, masquerade. Animals also use colors in advertising, signalling services such as cleaning to animals of other species, to signal sexual status to other members of the same species. Some animals use color to divert attacks by startle (dalmatic behaviour), surprising a predator e.g. with eyespots or other flashes of color or possibly by motion dazzle, confusing a predator attack by moving a bold pattern like zebra stripes. Some animals are colored for physical protection, such as having pigments in the skin to protect against sunburn; some animals can lighten or darken their skin for temperature regulation. This adaptive mechanism is known as protective coloration. After several years of evolution, most animals now achieved the color pattern most suited for their natural habitat and role in the food chains. Animals in the world rely on their coloration for either protection from predators, concealment from prey or sexual selection. In general the purpose of protective coloration is to decrease an organism’s visibility or to alter its appearance to other organisms. Sometimes several forms of protective coloration are superimposed on one animal. TYPES OF PROTECTIVE COLORATION PREVENTIVE DETECTION AND RECOGNITION CRYPSIS AND DISRUPTION Cryptic coloration helps to disguise an animal so that it is less visible to predators or prey. -
Mimicry - Ecology - Oxford Bibliographies 12/13/12 7:29 PM
Mimicry - Ecology - Oxford Bibliographies 12/13/12 7:29 PM Mimicry David W. Kikuchi, David W. Pfennig Introduction Among nature’s most exquisite adaptations are examples in which natural selection has favored a species (the mimic) to resemble a second, often unrelated species (the model) because it confuses a third species (the receiver). For example, the individual members of a nontoxic species that happen to resemble a toxic species may dupe any predators by behaving as if they are also dangerous and should therefore be avoided. In this way, adaptive resemblances can evolve via natural selection. When this phenomenon—dubbed “mimicry”—was first outlined by Henry Walter Bates in the middle of the 19th century, its intuitive appeal was so great that Charles Darwin immediately seized upon it as one of the finest examples of evolution by means of natural selection. Even today, mimicry is often used as a prime example in textbooks and in the popular press as a superlative example of natural selection’s efficacy. Moreover, mimicry remains an active area of research, and studies of mimicry have helped illuminate such diverse topics as how novel, complex traits arise; how new species form; and how animals make complex decisions. General Overviews Since Henry Walter Bates first published his theories of mimicry in 1862 (see Bates 1862, cited under Historical Background), there have been periodic reviews of our knowledge in the subject area. Cott 1940 was mainly concerned with animal coloration. Subsequent reviews, such as Edmunds 1974 and Ruxton, et al. 2004, have focused on types of mimicry associated with defense from predators. -
Coral Reefs Biology 200 Lecture Notes and Study Guide David A
Coral Reefs Biology 200 Lecture Notes and Study Guide David A. Krupp Fall 2001 © Copyright 1 Using this Lecture Outline and Study Guide This lecture outline and study guide was developed to assist you in your studies for this class. It was not meant to replace your attendance and active participation in class, including taking your own lecture notes, nor to substitute for reading and understanding text assignments. In addition, the information presented in this outline and guide does not necessarily represent all of the information that you are expected to learn and understand in this course. You should try to integrate the information presented here with that presented in lecture and in other written materials provided. It is highly recommended that you fully understand the vocabulary and study questions presented. The science of biology is always changing. New information and theories are always being presented, replacing outdated information and theories. In addition, there may be a few errors (content, spelling, and typographical) in this first edition. Thus, this outline and guide may be subject to revision and corrections during the course of the semester. These changes will be announced during class time. Note that this lecture outline and study guide may not be copied nor reproduced in any form without the permission of the author. TABLE OF CONTENTS The Nature of Natural Science ........................................................ 1 The Characteristics of Living Things ............................................... 6 The -
Defensive Behaviors of Deep-Sea Squids: Ink Release, Body Patterning, and Arm Autotomy
Defensive Behaviors of Deep-sea Squids: Ink Release, Body Patterning, and Arm Autotomy by Stephanie Lynn Bush A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Integrative Biology in the Graduate Division of the University of California, Berkeley Committee in Charge: Professor Roy L. Caldwell, Chair Professor David R. Lindberg Professor George K. Roderick Dr. Bruce H. Robison Fall, 2009 Defensive Behaviors of Deep-sea Squids: Ink Release, Body Patterning, and Arm Autotomy © 2009 by Stephanie Lynn Bush ABSTRACT Defensive Behaviors of Deep-sea Squids: Ink Release, Body Patterning, and Arm Autotomy by Stephanie Lynn Bush Doctor of Philosophy in Integrative Biology University of California, Berkeley Professor Roy L. Caldwell, Chair The deep sea is the largest habitat on Earth and holds the majority of its’ animal biomass. Due to the limitations of observing, capturing and studying these diverse and numerous organisms, little is known about them. The majority of deep-sea species are known only from net-caught specimens, therefore behavioral ecology and functional morphology were assumed. The advent of human operated vehicles (HOVs) and remotely operated vehicles (ROVs) have allowed scientists to make one-of-a-kind observations and test hypotheses about deep-sea organismal biology. Cephalopods are large, soft-bodied molluscs whose defenses center on crypsis. Individuals can rapidly change coloration (for background matching, mimicry, and disruptive coloration), skin texture, body postures, locomotion, and release ink to avoid recognition as prey or escape when camouflage fails. Squids, octopuses, and cuttlefishes rely on these visual defenses in shallow-water environments, but deep-sea cephalopods were thought to perform only a limited number of these behaviors because of their extremely low light surroundings. -
Body Painting Type Analysis Based on Biomimicry Camouflage
International Journal of Architecture, Arts and Applications 2020; 6(1): 1-11 http://www.sciencepublishinggroup.com/j/ijaaa doi: 10.11648/j.ijaaa.20200601.11 ISSN: 2472-1107 (Print); ISSN: 2472-1131 (Online) Review Article Body Painting Type Analysis Based on Biomimicry Camouflage Eun-Young Park Department of Bioengineering, Graduate School of Konkuk University, Seoul, South Korea Email address: To cite this article: Eun-Young Park. Body Painting Type Analysis Based on Biomimicry Camouflage. International Journal of Architecture, Arts and Applications. Vol. 6, No. 1, 2020, pp. 1-11. doi: 10.11648/j.ijaaa.20200601.11 Received: November 26, 2019; Accepted: December 20, 2019; Published: January 7, 2020 Abstract: The purpose of this study is to establish a method and find a possible way of applying biomimicry camouflage in body painting. This study seeks a direction for the future of the beauty and art industry through biomimicry. For this study, we analyzed the works by classifying camouflage body painting into passive and active camouflage sections based on the application of biomimicry to the artificial camouflage system. In terms of detailed types, passive camouflage was classified into general resemblance and special resemblance, and active camouflage into adventitious resemblance and variable protective resemblance, and expression characteristics and type were derived. Passive camouflage is the work of the pictorial expressive technique using aqueous and oily body painting products. The general resemblance was expressed as a body painting of crypsis and camouflage strategies. The special resemblance is a mimicry in which the human body camouflages the whole figure of living organisms or inanimate objects. -
Arbeitsvorhaben 2015/2016
^o_bfqpsloe^_bk=abo=cbiiltp = = = cbiiltp Û =molgb`qp= OMNRLOMNS= Herausgeber: Wissenschaftskolleg zu Berlin Wallotstraße 19 14193 Berlin Tel.: +49 30 89 00 1-0 Fax: +49 30 89 00 1-300 [email protected] wiko-berlin.de Redaktion: Angelika Leuchter Redaktionsschluss: 17. Juli 2015 Dieses Werk ist lizenziert unter einer Creative Commons Namensnennung - Nicht-kommerziell - Keine Bearbeitung 3.0 Deutschland Lizenz INHALT VORWORT ________________________________ 4 L A I T H A L - SHAWAF _________________________ 6 D O R I T B A R - ON ____________________________ 8 TATIANA BORISOVA ________________________ 10 V I C T O R I A A . BRAITHWAITE __________________ 12 JANE BURBANK ____________________________ 14 ANNA MARIA BUSSE BERGER __________________ 16 T I M C A R O ________________________________ 18 M I R C E A C Ă RTĂ RESCU _______________________ 20 B A R B A R A A . CASPERS _______________________ 22 DANIEL CEFAÏ _____________________________ 24 INNES CAMERON CUTHIL L ___________________ 26 LORRAINE DASTON _________________________ 28 CLÉMENTINE DELISS ________________________ 30 HOLGER DIESSEL ___________________________ 32 ELHADJI IBRAHIMA DIO P ____________________ 34 PAULA DROEGE ____________________________ 36 DIETER EBERT _____________________________ 38 FINBARR BARRY FLOOD ______________________ 40 RAGHAVENDRA GADAGKAR __________________ 42 PETER GÄRDENFORS ________________________ 44 LUCA GIULIANI ____________________________ 46 SUSAN GOLDIN - MEADOW ____________________ 48 M I C H A E L D . GORDIN ________________________ 50 -
Predation Selects for Background Matching in the Body Colour of a Land fish
Animal Behaviour 86 (2013) 1241e1249 Contents lists available at ScienceDirect Animal Behaviour journal homepage: www.elsevier.com/locate/anbehav Natural selection in novel environments: predation selects for background matching in the body colour of a land fish Courtney L. Morgans*, Terry J. Ord Evolution and Ecology Research Centre, and the School of Biological, Earth and Environmental Sciences, University of New South Wales, Kensington, NSW, Australia article info The invasion of a novel habitat often results in a variety of new selective pressures on an individual. One Article history: pressure that can severely impact population establishment is predation. The strategies that animals use Received 8 April 2013 to minimize predation, especially the extent to which those strategies are habitat or predator specific, Initial acceptance 14 May 2013 will subsequently affect individuals’ dispersal abilities. The invasion of land by a fish, the Pacific leaping Final acceptance 6 September 2013 blenny, Alticus arnoldorum, offers a unique opportunity to study natural selection following the coloni- Available online 23 October 2013 zation of a novel habitat. Various studies have examined adaptations in respiration and locomotion, but MS. number: A13-00297R how these fish have responded to the predation regime on land was unknown. We studied five replicate populations of this fish around the island of Guam and found their body coloration converged on the Keywords: terrestrial rocky backgrounds on which the fish were most often found. Subsequent experiments adaptive evolution confirmed that this background matching significantly reduced predation. Natural selection has there- Alticus arnoldorum fore selected for background matching in the body coloration of the Pacific leaping blenny to minimize antipredator fi camouflage predation, but it is a strategy that is habitat speci c. -
Escape Distance in Ground-Nesting Birds Differs with Individual Level of Camouflage
ORE Open Research Exeter TITLE Escape distance in ground-nesting birds differs with individual level of camouflage AUTHORS Wilson-Aggarwal, J; Troscianko, J; Stevens, M; et al. JOURNAL American Naturalist DEPOSITED IN ORE 30 March 2016 This version available at http://hdl.handle.net/10871/20871 COPYRIGHT AND REUSE Open Research Exeter makes this work available in accordance with publisher policies. A NOTE ON VERSIONS The version presented here may differ from the published version. If citing, you are advised to consult the published version for pagination, volume/issue and date of publication Escape distance in ground-nesting birds differs with individual level of camouflage Authors: J.K. Wilson-Aggarwal*1, J.T. Troscianko1, M. Stevens†1 and C.N. Spottiswoode2,3 Corresponding Authors: * [email protected] † [email protected] 1 Centre for Ecology & Conservation, College of Life & Environmental Sciences, University of Exeter, Penryn Campus, Penryn, Cornwall, TR10 9FE, UK. 2 University of Cambridge, Department of Zoology, Downing Street, Cambridge CB2 3EJ, UK 3 DST-NRF Centre of Excellence at the Percy FitzPatrick Institute, University of Cape Town, Rondebosch 7701, South Africa Key words Camouflage, background matching, escape behaviour, ground-nesting birds, incubation To be published as an article with supplementary materials in the expanded online edition. Includes: Abstract, introduction, methods, results, discussion, figure 1, figure 2, table 1, online appendix A, figure A1 and table A1. 1 Abstract Camouflage is one of the most widespread anti-predator strategies in the animal kingdom, yet no animal can match its background perfectly in a complex environment. Therefore, selection should favour individuals that use information on how effective their camouflage is in their immediate habitat when responding to an approaching threat. -
The Evolution of Crypsis When Pigmentation Is Physiologically Costly G. Moreno–Rueda
Animal Biodiversity and Conservation 43.1 (2020) 89 The evolution of crypsis when pigmentation is physiologically costly G. Moreno–Rueda Moreno–Rueda, G., 2020. The evolution of crypsis when pigmentation is physiologically costly. Animal Biodi- versity and Conservation, 43.1: 89–96, Doi: https://doi.org/10.32800/abc.2020.43.0089 Abstract The evolution of crypsis when pigmentation is physiologically costly. Predation is one of the main selective forces in nature, frequently selecting for crypsis in prey. Visual crypsis usually implies the deposition of pig- ments in the integument. However, acquisition, synthesis, mobilisation and maintenance of pigments may be physiologically costly. Here, I develop an optimisation model to analyse how pigmentation costs may affect the evolution of crypsis. The model provides a number of predictions that are easy to test empirically. It predicts that imperfect crypsis should be common in the wild, but in such a way that pigmentation is less than what is required to maximise crypsis. Moreover, optimal crypsis should be closer to “maximal” crypsis as predation risk increases and/or pigmentation costs decrease. The model predicts for intraspecific variation in optimal crypsis, depending on the difference in the predation risk or the costs of pigmentation experienced by different individuals. Key words: Predation, Pigmentation, Coloration Resumen La evolución de la cripsis cuando la pigmentación es fisiológicamente costosa. La depredación es una de las principales fuerzas de selección de la naturaleza y a menudo favorece la cripsis en las presas. Por lo general, la cripsis visual implica el depósito de pigmentos en el tegumento. Sin embargo, adquirir, sintetizar, movilizar y mantener los pigmentos puede ser fisiológicamente costoso. -
Locomotor, Chromatic, Postural, and Bioluminescent Behaviors of the Deep-Sea Squid Octopoteuthis Deletron Young 1972
Reference: Biol. Bull. 216: 7–22. (February 2009) © 2009 Marine Biological Laboratory Behaving in the Dark: Locomotor, Chromatic, Postural, and Bioluminescent Behaviors of the Deep-Sea Squid Octopoteuthis deletron Young 1972 STEPHANIE L. BUSH1,2,*, BRUCE H. ROBISON2, AND ROY L. CALDWELL1 1University of California, Berkeley, Department of Integrative Biology, Berkeley, California 94720; and 2Monterey Bay Aquarium Research Institute, 7700 Sandholdt Rd., Moss Landing, California 95039 Abstract. Visual behaviors are prominent components of tion (Packard and Sanders, 1971; Packard and Hochberg, intra- and interspecific communication in shallow-water 1977; Hanlon and Messenger, 1988, 1996). These cephalo- cephalopods. Meso- and bathypelagic cephalopods were be- pods assess their surroundings with well-developed vision, lieved to have limited visual communication, other than biolu- though in most species vision is monochromatic (Messen- minescence, due to the reduced illumination at depth. To ger, 1977; Kito et al., 1992; Shashar et al., 1998; Sweeney explore potential visual behaviors in mesopelagic squid, we et al., 2007). Individuals are capable of polyphenism con- used undersea vehicles to observe 76 individuals of Octopo- sisting of near instantaneous changes in appearance through teuthis deletron. In contrast to predictions, we found this spe- a broad range of camouflage and communication methods cies capable of a variety of visually linked behaviors not (Packard and Sanders, 1971; Packard and Hochberg, 1977; previously reported for a deep-ocean cephalopod. The resultant Hanlon and Messenger, 1988; Roper and Hochberg, 1988; ethogram describes numerous chromatic, postural, locomotor, Hanlon et al., 1999a; Barbato et al., 2007). An individual’s and bioluminescent behavioral components. A few common overall appearance, or body pattern, is composed of the body patterns—the whole appearance of the individual involv- following component types: chromatic, textural, postural, ing multiple components—are characterized. -
Establishing the Behavioural Limits for Countershaded Camouflage
www.nature.com/scientificreports OPEN Establishing the behavioural limits for countershaded camoufage Olivier Penacchio1, Julie M. Harris1 & P. George Lovell2 Countershading is a ubiquitous patterning of animals whereby the side that typically faces the highest Received: 15 June 2017 illumination is darker. When tuned to specifc lighting conditions and body orientation with respect to Accepted: 20 September 2017 the light feld, countershading minimizes the gradient of light the body refects by counterbalancing Published: xx xx xxxx shadowing due to illumination, and has therefore classically been thought of as an adaptation for visual camoufage. However, whether and how crypsis degrades when body orientation with respect to the light feld is non-optimal has never been studied. We tested the behavioural limits on body orientation for countershading to deliver efective visual camoufage. We asked human participants to detect a countershaded target in a simulated three-dimensional environment. The target was optimally coloured for crypsis in a reference orientation and was displayed at diferent orientations. Search performance dramatically improved for deviations beyond 15 degrees. Detection time was signifcantly shorter and accuracy signifcantly higher than when the target orientation matched the countershading pattern. This work demonstrates the importance of maintaining body orientation appropriate for the displayed camoufage pattern, suggesting a possible selective pressure for animals to orient themselves appropriately to enhance crypsis. Te evolution of animal coloration is afected by several constraints including communication, thermoregulation, protection against ultra-violet radiation and visual camoufage1–3. Countershading is a patterning where the parts of the body that usually face the direction of maximum illumination, usually the back, are darker than parts facing in the opposite direction4,5.