→ Submission: Why Cockroach Milk Is the Ultimate 'Superfood'

Total Page:16

File Type:pdf, Size:1020Kb

→ Submission: Why Cockroach Milk Is the Ultimate 'Superfood' Login or Sign up Stories Firehose All Popular Polls Deals Submit Search 146 Topics: Devices Build Entertainment Technology Open Source Science YRO Follow us: Catch up on stories from the past week (and beyond) at the Slashdot story archive Nickname: Password: 6-1024 characters long Public Terminal Log In Forgot your password? Sign in with Google Facebook Twitter LinkedIn Close Have you META-MODERATED today? Sign up for the Slashdot Daily Newsletter! DEAL: For $25 - Add A × Second Phone Number To Your Smartphone for life! Use promo code SLASHDOT25. Is Cockroach Milk the Ultimate Superfood? (globalnews.ca) Posted by BeauHD on Thursday May 24, 2018 @11:30PM from the marvels-of-science dept. An anonymous reader quotes a report from Global News: It may not be everyone's cup of milk, but for years now, some researchers believe insect milk, like cockroach milk, could be the next big dairy alternative. A report in 2016 found Pacific Beetle cockroaches specifically created nutrient-filled milk crystals that could also benefit humans, the Hindustan Times reports. Others report producing cockroach milk isn't easy, either -- it takes 1,000 cockroaches to make 100 grams of milk, Inverse reports, and other options could include a cockroach milk pill. And although it has been two years since the study, some people are still hopeful. Insect milk, or entomilk, is already being used and consumed by Cape Town-based company Gourmet Grubb, IOL reports. Jarrod Goldin, [president of Entomo Farms which launched in 2014], got interested in the insect market after the Food and Agriculture Organization of the United Nation in 2013 announced people around the world were consuming more than 1,900 insects. As his brothers were already farming insects for fishing and reptile use, Goldin thought it would be a smart business opportunity to focus on food. Goldin adds studies have shown cricket powder can be a high source of protein and B12. The PC version his company produces has 13 grams of protein per every 2 1/2 tbsps. Toronto-based registered dietitian Andy De Santis says for protein alternatives, insects are definitely in the playing field. According to ScienceAlert, Diploptera punctate is the only known cockroach to give birth to live young and has been shown to pump out a type of "milk" containing protein crystals to feed its babies. "The fact that an insect produces milk is pretty fascinating -- but what fascinated researchers is the fact that a single one of these protein crystals contains more than three times the amount of energy found in an equivalent amount of buffalo milk (which is also higher in calories than regular cow's milk)." Researchers are now working to replicate the crystals in the lab. They are working with yeast to produce the crystal in much larger quantities -- "making it slightly more efficient than extracting crystals from cockroach's guts," reports ScienceAlert. bug health science → Samsung Must Pay Apple $539 Million For Infringing iPhone Design Patents, Jury Finds Trump Is Pulling US Out of Paris Climate Deal: Sources Why People Dislike Really Smart Leaders Google Conducted Hollywood 'Interventions' To Change Look of Computer Scientists US Births Dip To 30-Year Low Flat Earther Plans To Launch Homemade Manned Rocket Submission: Why Cockroach Milk Is the Ultimate 'Superfood' Facebook Accused of Conducting Mass Surveillance Through Its Apps Is Cockroach Milk the Ultimate Superfood? 46 More | Reply Login Is Cockroach Milk the Ultimate Superfood? Post Load All Comments S18e aFruchll 17416 A Cbbomremvieantetsd L1o1g H Iind/dCerneate an Account C/Soemaments Filter: AScllore: I5nsightful I4nformative I3nteresting F2unny 1The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way. R0 e: (Score:3, Interesting) b-1y AHuxley ( 892839 ) B46o oMk oorfe L |e Rvietpiclyu sL, oDgeinuteronomy and other good books set out in easy to understand terms what is acceptable for h umans. ie But all other flying creeping things, which have four feet, shall be an abomination unto you. Nickname: RPea:s s(wScoorrde: :16-)1024 characters long by P Aunbolnicy mTeorums Cinoawl ard cockroach is insect and have six feets so is ok by jesus people bible book 1 hiLdodge Inn co mmFoerngott your password? Close CRleo:s (eScore:2) by Applehu Akbar ( 2968043 ) I've seen Temple of Doom. EVERYONE at that table was HINDU. I would rather have the chilled monkey brains. Wouldn't milking cockroaches be the ultimate labor-intensive job? I suppose we could make it a task for prisoners. Re: (Score:2) by Oswald McWeany ( 2428506 ) I've seen Temple of Doom. EVERYONE at that table was HINDU. I would rather have the chilled monkey brains. Wouldn't milking cockroaches be the ultimate labor-intensive job? I suppose we could make it a task for prisoners. I imagine it's very hard to find their nipples. Re: (Score:1) by michelcolman ( 1208008 ) The do indeed have six legs, but they also bear live offspring and feed them milk. Apart from them not being warm- blooded, that would almost make them mammals... Re: (Score:3) by stealth_finger ( 1809752 ) The do indeed have six legs, but they also bear live offspring and feed them milk. Apart from them not being warm- blooded, that would almost make them mammals... They would almost be mammals were they not insects and completely different. Re: (Score:2) by michelcolman ( 1208008 ) Well, dolphins are completely different from us as well, yet nobody has a problem calling them mammals instead of fish. It all depends on the definition. In fact, according to the Cambridge Dictionary [cambridge.org], these cockroaches are definitely mammals. "Mammal, noun, any animal of which the female feeds her young on milk from her own body. " The American English version lower on that same page, adds "gives birth to babies. not eggs", so I guess Americans don't consider a platypus to be a mammal, but are still perfectl Re: (Score:2) by stealth_finger ( 1809752 ) Well, dolphins are completely different from us as well, yet nobody has a problem calling them mammals instead of fish. It all depends on the definition. In fact, according to the Cambridge Dictionary [cambridge.org], these cockroaches are definitely mammals. "Mammal, noun, any animal of which the female feeds her young on milk from her own body. " Yeah but follow it on, from the same site animal noun something that lives and moves but is not a human, bird, fish, or insect: So we're back to roaches not being mammals. Re: (Score:1) by BeauHD (.) (349) ( 5423924 ) Get over it, powdered crickets are here to stay. Humans carbon footprints must be eliminated. By the end of this generation everybody will have an insect diet after they get over the psychological barriers. -=BeauHD=- 1 hidden comment Re: (Score:3) by Marlin Schwanke ( 3574769 ) Except for the the top .1%. They’ll continue to eat the rest of us for lunch just as they do now. Re: (Score:2) by Joce640k ( 829181 ) How much would 1.5 pounds of roach guano sell for? And, yes the chest was discarded afterwards. Discarded after you bagged up the poop. Got it. Re: Cockroach Milk (Score:2) by Type44Q ( 1233630 ) Humans carbon footprints must be eliminated. They'll be feeding powdered humans to crickets soon enough. Re: (Score:2) by DivineKnight ( 3763507 ) I think there is a group of wealthy scientists somewhere which is playing with the human race. "Let's make them eat plants...no, insects! The really nasty ones!" "Let's get them to abandon nuclear technology, and be at the mercy of the elements (we will call it 'green' technology)!" "Let's get them to carry a radio beacon everywhere they go!" "Let's get them to post their intimate details online, and promise not to sell / misuse them!" Re: (Score:2) by Marlin Schwanke ( 3574769 ) THEY’RE tapping the line. FTFY Nipples (Score:5, Funny) by goombah99 ( 560566 ) on Friday May 25, 2018 @12:10AM (#56670828) You can milk anything with nipples other than robert De Niro Reply to This Parent Share twitter facebook linkedin Flag as Inappropriate Re: (Score:2) by Oswald McWeany ( 2428506 ) You can milk anything with nipples other than robert De Niro Scientists are working on silicon breast implants for cockroaches; this will help people locate the nipples to milk. Re: (Score:2) by Darinbob ( 1142669 ) This reduces the chafing. THAT's the real story? (Score:2) by White Yeti ( 927387 ) The summary sounds like something Paula Poundstone would recite on "Wait wait... Don't tell me!" Re: (Score:2) by Ol Olsoc ( 1175323 ) The summary sounds like something Paula Poundstone would recite on "Wait wait... Don't tell me!" I'll bet it is one of the articles they use on the guess the right story segment tomorrow. › Betteridge Law: No (Score:2) by UnknownSoldier ( 67820 ) Also, this has a massive freaking stigma to overcome. 1 hidden comment Re:Betteridge Law: No (Score:5, Funny) by goombah99 ( 560566 ) on Friday May 25, 2018 @12:44AM (#56670950) How many cockroaches are needed for a grande latte? One dustpan's worth. Reply to This Parent Share twitter facebook linkedin Flag as Inappropriate Re: (Score:1) by Anonymous Coward I just don't see the point here. There's already a bunch of plant-based alternatives that don't involved roaches (rice, soy, almond, quinoa, coconut, ect.). I like dairy products (and meat and eggs), and I get why there's this push to find alternatives, but this is a solved problem. As far as I can tell, the real issue here is the idea that things just have to involve something non-vegan.
Recommended publications
  • New Aspects About Supella Longipalpa (Blattaria: Blattellidae)
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Elsevier - Publisher Connector Asian Pac J Trop Biomed 2016; 6(12): 1065–1075 1065 HOSTED BY Contents lists available at ScienceDirect Asian Pacific Journal of Tropical Biomedicine journal homepage: www.elsevier.com/locate/apjtb Review article http://dx.doi.org/10.1016/j.apjtb.2016.08.017 New aspects about Supella longipalpa (Blattaria: Blattellidae) Hassan Nasirian* Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran ARTICLE INFO ABSTRACT Article history: The brown-banded cockroach, Supella longipalpa (Blattaria: Blattellidae) (S. longipalpa), Received 16 Jun 2015 recently has infested the buildings and hospitals in wide areas of Iran, and this review was Received in revised form 3 Jul 2015, prepared to identify current knowledge and knowledge gaps about the brown-banded 2nd revised form 7 Jun, 3rd revised cockroach. Scientific reports and peer-reviewed papers concerning S. longipalpa and form 18 Jul 2016 relevant topics were collected and synthesized with the objective of learning more about Accepted 10 Aug 2016 health-related impacts and possible management of S. longipalpa in Iran. Like the Available online 15 Oct 2016 German cockroach, the brown-banded cockroach is a known vector for food-borne dis- eases and drug resistant bacteria, contaminated by infectious disease agents, involved in human intestinal parasites and is the intermediate host of Trichospirura leptostoma and Keywords: Moniliformis moniliformis. Because its habitat is widespread, distributed throughout Brown-banded cockroach different areas of homes and buildings, it is difficult to control.
    [Show full text]
  • Cockroach Marion Copeland
    Cockroach Marion Copeland Animal series Cockroach Animal Series editor: Jonathan Burt Already published Crow Boria Sax Tortoise Peter Young Ant Charlotte Sleigh Forthcoming Wolf Falcon Garry Marvin Helen Macdonald Bear Parrot Robert E. Bieder Paul Carter Horse Whale Sarah Wintle Joseph Roman Spider Rat Leslie Dick Jonathan Burt Dog Hare Susan McHugh Simon Carnell Snake Bee Drake Stutesman Claire Preston Oyster Rebecca Stott Cockroach Marion Copeland reaktion books Published by reaktion books ltd 79 Farringdon Road London ec1m 3ju, uk www.reaktionbooks.co.uk First published 2003 Copyright © Marion Copeland All rights reserved No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise without the prior permission of the publishers. Printed and bound in Hong Kong British Library Cataloguing in Publication Data Copeland, Marion Cockroach. – (Animal) 1. Cockroaches 2. Animals and civilization I. Title 595.7’28 isbn 1 86189 192 x Contents Introduction 7 1 A Living Fossil 15 2 What’s in a Name? 44 3 Fellow Traveller 60 4 In the Mind of Man: Myth, Folklore and the Arts 79 5 Tales from the Underside 107 6 Robo-roach 130 7 The Golden Cockroach 148 Timeline 170 Appendix: ‘La Cucaracha’ 172 References 174 Bibliography 186 Associations 189 Websites 190 Acknowledgements 191 Photo Acknowledgements 193 Index 196 Two types of cockroach, from the first major work of American natural history, published in 1747. Introduction The cockroach could not have scuttled along, almost unchanged, for over three hundred million years – some two hundred and ninety-nine million before man evolved – unless it was doing something right.
    [Show full text]
  • Running Speed and Food Intake of the Matrotrophic Viviparous Cockroach Diploptera Punctata (Blattodea: Blaberidae) During Gestation
    ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Entomologie heute Jahr/Year: 2014 Band/Volume: 26 Autor(en)/Author(s): Greven Hartmut, Floßdorf David, Köthe Janine, List Fabian, Zwanzig Nadine Artikel/Article: Running Speed and Food Intake of the Matrotrophic Viviparous Cockroach Diploptera punctata (Blattodea: Blaberidae) during Gestation. Laufgeschwindigkeit und Nahrungsaufnahme der matrotroph viviparen Schabe Diploptera punctata (Blattodea: Blaberidae) während der Trächtigkeit 53-72 Running speed and food intake of Diploptera punctata during gestation 53 Entomologie heute 26 (2014): 53-72 Running Speed and Food Intake of the Matrotrophic Viviparous Cockroach Diploptera punctata (Blattodea: Blaberidae) during Gestation Laufgeschwindigkeit und Nahrungsaufnahme der matrotroph viviparen Schabe Diploptera punctata (Blattodea: Blaberidae) während der Trächtigkeit HARTMUT GREVEN, DAVID FLOSSDORF, JANINE KÖTHE, FABIAN LIST & NADINE ZWANZIG Summary: Diploptera punctata is the only cockroach, which has been clearly characterized as matro- trophic viviparous. Our observations on courtship and mating generally confi rm the data from the literature. Courtship and mating correspond to type I (male offers himself under wing fl uttering, female mounts the male, nibbles on his tergal glands, dismounts, turns to achieve the fi nal mating position, i.e. abdomen to abdomen, heads in the opposite direction. We document photographic ally mating and courtship of fully sklerotized, sexually experienced males with teneral females imme- diately after the last moult, and with fully sclerotized females several hours after the fi nal moult. Effects of sexual dimorphism (females are larger than males) and pregnancy (females gain weight) became apparent from the running speed cockroaches reached, when disturbed. Males and females ran signifi cantly faster during daytime than at night, but males ran always faster than females.
    [Show full text]
  • A Dichotomous Key for the Identification of the Cockroach Fauna (Insecta: Blattaria) of Florida
    Species Identification - Cockroaches of Florida 1 A Dichotomous Key for the Identification of the Cockroach fauna (Insecta: Blattaria) of Florida Insect Classification Exercise Department of Entomology and Nematology University of Florida, Gainesville 32611 Abstract: Students used available literature and specimens to produce a dichotomous key to species of cockroaches recorded from Florida. This exercise introduced students to techniques used in studying a group of insects, in this case Blattaria, to produce a regional species key. Producing a guide to a group of insects as a class exercise has proven useful both as a teaching tool and as a method to generate information for the public. Key Words: Blattaria, Florida, Blatta, Eurycotis, Periplaneta, Arenivaga, Compsodes, Holocompsa, Myrmecoblatta, Blatella, Cariblatta, Chorisoneura, Euthlastoblatta, Ischnoptera,Latiblatta, Neoblatella, Parcoblatta, Plectoptera, Supella, Symploce,Blaberus, Epilampra, Hemiblabera, Nauphoeta, Panchlora, Phoetalia, Pycnoscelis, Rhyparobia, distributions, systematics, education, teaching, techniques. Identification of cockroaches is limited here to adults. A major source of confusion is the recogni- tion of adults from nymphs (Figs. 1, 2). There are subjective differences, as well as morphological differences. Immature cockroaches are known as nymphs. Nymphs closely resemble adults except nymphs are generally smaller and lack wings and genital openings or copulatory appendages at the tip of their abdomen. Many species, however, have wingless adult females. Nymphs of these may be recognized by their shorter, relatively broad cerci and lack of external genitalia. Male cockroaches possess styli in addition to paired cerci. Styli arise from the subgenital plate and are generally con- spicuous, but may also be reduced in some species. Styli are absent in adult females and nymphs.
    [Show full text]
  • New Cockroaches (Dictyoptera: Blattina) from Baltic Amber, with Description of a New Genus and Species: Stegoblatta Irmgardgroeh
    Proceedings of the Zoological Institute RAS Vol. 316, No. 3, 2012, рр. 193–202 УДК 595.722 NEW COCKROACHES (DICTYOPTERA: BLATTINA) FROM BALTIC AMBER, WITH THE DESCRIPTION OF A NEW GENUS AND SPECIES: STEGOBLATTA IRMGARDGROEHNI L.N. Anisyutkin1* and C. Gröhn2 1Zoological Institute of the Russian Academy of Sciences, Universitetskaya Emb. 1, 199034 Saint Petersburg, Russia; e-mail: [email protected] 2Bünebüttler Weg 7, D-21509 Glinde/Hamburg, Germany; e-mail: [email protected] ABSTRACT A new genus and species of cockroaches, Stegoblatta irmgardgroehni gen. et sp. nov. is described from Baltic Amber. The taxonomic position of the new genus is discussed and it is concluded that it belongs to the family Blaberidae. The male of Paraeuthyrrapha groehni (Corydiidae, Euthyrrhaphinae) is described for the first time. Key words: Baltic Amber, Blaberidae, cockroaches, Dictyoptera, Paraeuthyrrapha groehni, Stegoblatta irmgard- groehni gen. et sp. nov. НОВЫЕ ТАРАКАНЫ (DICTYOPTERA: BLATTINA) ИЗ БАЛТИЙСКОГО ЯНТАРЯ, С ОПИСАНИЕМ НОВОГО РОДА И ВИДА: STEGOBLATTA IRMGARDGROEHNI Л.Н. Анисюткин1* и К. Грён2 1Зоологический институт Российской академии наук, Университетская наб. 1, 199034 Санкт-Петербург, Россия; e-mail: [email protected] 2Bünebüttler Weg 7, D-21509 Glinde/Hamburg, Germany; e-mail: [email protected] РЕЗЮМЕ Новый род и вид тараканов (Stegoblatta irmgardgroehni gen. et sp. nov.) описывается из балтийского янта- ря. Обсуждается таксономическое положение нового рода, предположительно отнесенного к семейству Blaberidae. Впервые описывается самец Paraeuthyrrhapha groehni (Corydiidae, Euthyrrhaphinae). Ключевые слова: балтийский янтарь, Blaberidae, тараканы, Dictyoptera, Paraeuthyrrapha groehni, Stegoblatta irmgardgroehni gen. et sp. nov. INTRODUCTION Wichard 2010). The cockroach fauna from Baltic amber is more or less similar to the modern one in Baltic amber is one of the most famous sources of taxa composition (Shelford 1910, 1911; Weitshat fossil insects.
    [Show full text]
  • Thesis (PDF, 13.51MB)
    Insects and their endosymbionts: phylogenetics and evolutionary rates Daej A Kh A M Arab The University of Sydney Faculty of Science 2021 A thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy Authorship contribution statement During my doctoral candidature I published as first-author or co-author three stand-alone papers in peer-reviewed, internationally recognised journals. These publications form the three research chapters of this thesis in accordance with The University of Sydney’s policy for doctoral theses. These chapters are linked by the use of the latest phylogenetic and molecular evolutionary techniques for analysing obligate mutualistic endosymbionts and their host mitochondrial genomes to shed light on the evolutionary history of the two partners. Therefore, there is inevitably some repetition between chapters, as they share common themes. In the general introduction and discussion, I use the singular “I” as I am the sole author of these chapters. All other chapters are co-authored and therefore the plural “we” is used, including appendices belonging to these chapters. Part of chapter 2 has been published as: Bourguignon, T., Tang, Q., Ho, S.Y., Juna, F., Wang, Z., Arab, D.A., Cameron, S.L., Walker, J., Rentz, D., Evans, T.A. and Lo, N., 2018. Transoceanic dispersal and plate tectonics shaped global cockroach distributions: evidence from mitochondrial phylogenomics. Molecular Biology and Evolution, 35(4), pp.970-983. The chapter was reformatted to include additional data and analyses that I undertook towards this paper. My role was in the paper was to sequence samples, assemble mitochondrial genomes, perform phylogenetic analyses, and contribute to the writing of the manuscript.
    [Show full text]
  • Phylogeny and Life History Evolution of Blaberoidea (Blattodea)
    78 (1): 29 – 67 2020 © Senckenberg Gesellschaft für Naturforschung, 2020. Phylogeny and life history evolution of Blaberoidea (Blattodea) Marie Djernæs *, 1, 2, Zuzana K otyková Varadínov á 3, 4, Michael K otyk 3, Ute Eulitz 5, Kla us-Dieter Klass 5 1 Department of Life Sciences, Natural History Museum, London SW7 5BD, United Kingdom — 2 Natural History Museum Aarhus, Wilhelm Meyers Allé 10, 8000 Aarhus C, Denmark; Marie Djernæs * [[email protected]] — 3 Department of Zoology, Faculty of Sci- ence, Charles University, Prague, 12844, Czech Republic; Zuzana Kotyková Varadínová [[email protected]]; Michael Kotyk [[email protected]] — 4 Department of Zoology, National Museum, Prague, 11579, Czech Republic — 5 Senckenberg Natural History Collections Dresden, Königsbrücker Landstrasse 159, 01109 Dresden, Germany; Klaus-Dieter Klass [[email protected]] — * Corresponding author Accepted on February 19, 2020. Published online at www.senckenberg.de/arthropod-systematics on May 26, 2020. Editor in charge: Gavin Svenson Abstract. Blaberoidea, comprised of Ectobiidae and Blaberidae, is the most speciose cockroach clade and exhibits immense variation in life history strategies. We analysed the phylogeny of Blaberoidea using four mitochondrial and three nuclear genes from 99 blaberoid taxa. Blaberoidea (excl. Anaplectidae) and Blaberidae were recovered as monophyletic, but Ectobiidae was not; Attaphilinae is deeply subordinate in Blattellinae and herein abandoned. Our results, together with those from other recent phylogenetic studies, show that the structuring of Blaberoidea in Blaberidae, Pseudophyllodromiidae stat. rev., Ectobiidae stat. rev., Blattellidae stat. rev., and Nyctiboridae stat. rev. (with “ectobiid” subfamilies raised to family rank) represents a sound basis for further development of Blaberoidea systematics.
    [Show full text]
  • Juvenile Hormone Biosynthesis in the Cockroach, Diploptera
    Juvenile hormone biosynthesis in the cockroach, Diploptera punctata: the characterization of the biosynthetic pathway and the regulatory roles of allatostatins and NMDA receptor by Juan Huang A thesis submitted in conformity with the requirements for the degree of Doctor of Philosophy Department of Cell and Systems Biology University of Toronto © Copyright by Juan Huang (2015) Juvenile hormone biosynthesis in the cockroach, Diploptera punctata: the characterization of the biosynthetic pathway and the regulatory roles of allatostatins and NMDA receptor Juan Huang Doctor of Philosophy (2015), Department of Cell and Systems Biology, University of Toronto Abstract The juvenile hormones (JH) play essential roles in regulating growth, development, metamorphosis, ageing, caste differentiation and reproduction in insects. Diploptera punctata, the only truly viviparous cockroach is a well-known model system in the study of JH biosynthesis and its regulation. The physiology of this animal is characterized by very stable and high rates of JH biosynthesis and precise and predictable reproductive events that correlate well with rates of JH production. Many studies have been performed on D. punctata to determine the function of JH. However, the pathway of JH biosynthesis has not been identified. In addition, although many factors are known to regulate JH biosynthesis, the exact mechanisms remain unclear. The aim of my research was to elucidate the JH biosynthetic pathway in D. punctata and study the mechanisms by which allatostatin (AST) and N-methyl-D-aspartate (NMDA) receptor regulate JH production. I have (1) identified genes in the JH biosynthetic pathway, and determined their roles in JH biosynthesis; (2) investigated the mode of action of AST by determining the signaling pathway of AstR and the target of AST action; (3) determined the role of the NMDA receptor in JH biosynthesis using RNA interference and treatment with an NMDA receptor antagonist.
    [Show full text]
  • AMERICAN COCKROACHES EXHIBIT INTER-INDIVIDUAL VARIATION in RECEPTIVITY to CLASSICAL CONDITIONING Lyndsay S
    University of Utah UNDERGRADUATE RESEARCH JOURNAL AMERICAN COCKROACHES EXHIBIT INTER-INDIVIDUAL VARIATION IN RECEPTIVITY TO CLASSICAL CONDITIONING Lyndsay S. Ricks, Donald H. Feener, Jr. School of Biological Sciences Abstract The American cockroach (Periplaneta americana) has occasionally been used as a behavioral model in entomological research, and has been demonstrated to be capable of associative learning. Additionally, consistent inter-individual behavioral differences among different cockroach species have been observed and termed “personality differences.” I attempted and was unable to demonstrate that a correlation existed between facets of cockroach personalities and individual cockroaches’ ability to learn to associate a location with a positive stimulus. According to my results, there nonetheless exists substantial inter-individual variation in learning ability, and prior behavioral research on Diploptera punctata demonstrating differences in “boldness” appears to be extensible to P. americana. This has implications for future research on cockroach behavior. Introduction Periplaneta americana is a common pest species of cockroach found worldwide, often used as a behavioral model in research due to its ease of rearing and acquisition. Previous research has demonstrated that Periplaneta americana and other cockroaches are able to form counter- instinctual behavioral associations and alter behavior based on learning. Other research has indicated that individuals of P. americana and of related species Diploptera punctata and Blattella germanica have what may be referred to as “personalities,” that is, consistently observable inter-individual variations in behavior. My goal with this study is to, building upon previous research in these fields, examine whether there exists a connection between individuals’ personalities and the way in which they learn (in this case, specifically the way in which they form spatial associations).
    [Show full text]
  • Observations on the Reproduction of the Giant Cockroach, Blaberus Cranhfera Burm
    OBSERVATIONS ON THE REPRODUCTION OF THE GIANT COCKROACH, BLABERUS CRANHFERA BURM. BY W. L. NUTTING Biological Laboratories, Harvard University In his Embryology of the Viviparous Insects, H. R. Hagan (1951) cites nine species of roaches recorded as exhibiting some type of viviparity, or oviparity approaching vivi- parity. Chopard (1950) and Vn Wyk (1952) have urn- ished two additional examples of viviparous blattids. Much of the evidence or viviparity has been indirect; that is, it has been based on dissections of gravid females, while in scarcely half the cases has the birth process actually been witnessed. Among the species mentioned by Hagan are the West Indian Blabera fusca Brunner (Saupe, 1929), and a Bolivian Blabera species (Holmgren, 1903). (Blabera fusca Brunner can probably be referred to craniifera Burm. according to Rehn and HebarO (1927).) Over the past seven years I have had the opportunity to observe rather closely a flourishing culture of Blaberus craniifera Burm., originally started rom Florida specimens by Prof. C. T. Brues. (This roach is limited to Cuba. in the West Indies and ranges rom southern Mexico to British Ho.nduras on the mainland; it has undoubtedly been introduced to Key West irom Cuba.) During this period I have 2ound newly hatched nymphs dozens of times, but only recently have I observed parturition itself. Before recounting this event, it seems appropriate to include available information on mating, the little-known spermatophore, and other relevant details on the reproductive habits of this large laboratory roach. Blaberus is rarely active during the daytime, even in the labora,tory, and I ha.ve never seen courting behavior.
    [Show full text]
  • Endocrine and Reproductive Differences and Genetic Divergence in Two Populations of the Cockroach Diploptera Punctata ARTICLE IN
    ARTICLE IN PRESS Journal of Insect Physiology 54 (2008) 931– 938 Contents lists available at ScienceDirect Journal of Insect Physiology journal homepage: www.elsevier.com/locate/jinsphys Endocrine and reproductive differences and genetic divergence in two populations of the cockroach Diploptera punctata L.E. Lenkic a, J.M. Wolfe a, B.S.W. Chang b, S.S. Tobe a,Ã a Department of Cell and Systems Biology, University of Toronto, Toronto, Ont., Canada M5S 3G5 b Departments of Ecology & Evolutionary Biology, Cell & Systems Biology, Centre for the Analysis of Genome Evolution & Function, University of Toronto, Toronto, Ont., Canada M5S 3G5 article info abstract Article history: The viviparous cockroach, Diploptera punctata, has been a valuable model organism for studies of the Received 5 October 2007 regulation of reproduction by juvenile hormone (JH) in insects. As a result of its truly viviparous mode of Received in revised form reproduction, precise regulation of JH biosynthesis and reproduction is required for production of 6 February 2008 offspring, providing a model system for the study of the relationship between JH production and oocyte Accepted 8 February 2008 growth and maturation. Most studies to date have focused on individuals isolated from a Hawaiian population of this species. A new population of this cockroach was found in Nakorn Pathom, Thailand, Keywords: which demonstrated striking differences in cuticle pigmentation and mating behaviours, suggesting Diploptera punctata possible physiological differences between the two populations. To better characterize these Cockroach differences, rates of JH release and oocyte growth were measured during the first gonadotrophic cycle. Thailand The Thai population was found to show significantly earlier increases in the rate of JH release, and Hawaii oocyte development as compared with the Hawaiian population.
    [Show full text]
  • Micrdnlms International 300 N ZEE B ROAD, ANN AR80R
    INFORMATION TO USERS This was produced from a copy of a document sent to us for microfilming. While the most advanced technological means to photograph and reproduce this document have been used, the quality is heavily dependent upon the quality of the material submitted. The following explanation of techniques is provided to help you understand markings or notations which may appear on this reproduction. 1. The sign or “target" for pages apparently lacking from the document photographed is “Missing Page(s)”. If it was possible to obtain the missing page(s) or section, they are spliced into the Him along with adjacent pages. This may have necessitated cutting through an image and duplicating adjacent pages to assure you of complete continuity. 2. When an image on the film is obliterated with a round black mark it is an indication that the film inspector noticed either blurred copy because of movement during exposure, or duplicate copy. Unless we meant to delete copyrighted materials that should not have been filmed, you will find a good image of the page in the adjacent frame. 3. When a map, drawing or chart, etc., is part of the material being photo­ graphed the photographer has followed a definite method in “sectioning" the material. It is customary to begin filming at the upper left hand comer of a large sheet and to continue from left to right in equal sections with small overlaps. If necessary, sectioning is continued again—beginning below the first row and continuing on until complete. 4. For any illustrations that cannot be reproduced satisfactorily by xerography, photographic prints can be purchased at additional cost and tipped into your xerographic copy.
    [Show full text]