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The Evolution of the Placenta Drives a Shift in Sexual Selection in Livebearing Fish
LETTER doi:10.1038/nature13451 The evolution of the placenta drives a shift in sexual selection in livebearing fish B. J. A. Pollux1,2, R. W. Meredith1,3, M. S. Springer1, T. Garland1 & D. N. Reznick1 The evolution of the placenta from a non-placental ancestor causes a species produce large, ‘costly’ (that is, fully provisioned) eggs5,6, gaining shift of maternal investment from pre- to post-fertilization, creating most reproductive benefits by carefully selecting suitable mates based a venue for parent–offspring conflicts during pregnancy1–4. Theory on phenotype or behaviour2. These females, however, run the risk of mat- predicts that the rise of these conflicts should drive a shift from a ing with genetically inferior (for example, closely related or dishonestly reliance on pre-copulatory female mate choice to polyandry in conjunc- signalling) males, because genetically incompatible males are generally tion with post-zygotic mechanisms of sexual selection2. This hypoth- not discernable at the phenotypic level10. Placental females may reduce esis has not yet been empirically tested. Here we apply comparative these risks by producing tiny, inexpensive eggs and creating large mixed- methods to test a key prediction of this hypothesis, which is that the paternity litters by mating with multiple males. They may then rely on evolution of placentation is associated with reduced pre-copulatory the expression of the paternal genomes to induce differential patterns of female mate choice. We exploit a unique quality of the livebearing fish post-zygotic maternal investment among the embryos and, in extreme family Poeciliidae: placentas have repeatedly evolved or been lost, cases, divert resources from genetically defective (incompatible) to viable creating diversity among closely related lineages in the presence or embryos1–4,6,11. -
Problems of Python Classification and Hybrid Pythons
PROBLEMS OF PYTHON CLASSIFICATION AND HYBRID PYTHONS. By: Raymond Hoser, 170 Lawson Street, Redfern, NSW, 2016, Australia. Contents: Introduction - Summary of the problems in classifying Australia's pythons - Hybrids between species - Acknowledge ments - References. INTRODUCTION Australasia's pythons attract disproportionate in terest from herpetologists within Australia and elsewhere. There is also considerable debate in relation to the relationships between species, with various arrangements being proposed. Authors including Cogger (1986), Schmida (1985), and Stafford (1986), have tended to follow 'con sensus opinion' when assigning generic names to Australasian pythons. References in relation to general and more specific aspects of Australian pythons can be found in Haser (1981 a , 1981 b, 1981 c and 1982), and elsewhere. This short paper gives a summary of the problems facing Australian python taxonomists and gives details of an unusual captive breeding that resulted in hybrids between species being produced. SUMMARY OF THE PROBLEMS IN CLASSIFYING AUSTRALIA'S PYTHONS With the exception of the Black headed python and Woma (Genus Aspidites), all other Australian py thons have at various times been assigned to a number of different genera. Numerous schemes of 134 classification for the rema1n1ng Australian spe cies of python have been proposed. These include Hoser (1982), McDowell (1975), and Stull (1935). The schemes range from the placing of all species in the genus Python shared with other non Austra lian species, to placing the species in question in up to seven genera. Namely Bot"h:PochiZus3 Chon dropython3 Liasis3 LisaZia3 Liasis3 MoreZia3 and Python. The assignment of given species within a particular genus is also a matter of conflict. -
Raymond T. Hoser
32 Australasian Journal of Herpetology Australasian Journal of herpetology 11:32-50. Published 8 April 2012. ISSN 1836-5698 (Print) ISSN 1836-5779 (Online) THE DESCRIPTION OF A NEW GENUS OF WEST AUSTRALIAN SNAKE AND EIGHT NEW TAXA IN THE GENERA PSEUDONAJA GUNTHER, 1858, OXYURANUS KINGHORN, 1923 AND PANACEDECHIS WELLS AND WELLINGTON, 1985 (SERPENTES: ELAPIDAE) RAYMOND T. HOSER 488 Park Road, Park Orchards, Victoria, 3134, Australia. Phone: +61 3 9812 3322 Fax: 9812 3355 E-mail: [email protected] Submitted 20 March 2012, Accepted 30 March 2012, Published 8 April 2012. ABSTRACT This paper defines and names new taxa from Australasia. The taxon Denisonia fasciata Rosen 1905, placed most recently by most authors in the genus Suta, is formally removed from that genus and placed in a monotypic genus formally named and described herein. Other taxa formally named and described for the first time include subspecies of the following; the broadly recognized species Pseudonaja textilis (known as the Eastern Brown Snake), P. guttata (Speckled Brown Snake) and P. affinis (Dugite), Oxyuranus scutellatus (Taipan) from Irian Jaya and western Papua as well as a second subspecies from north-west Australia and a hitherto unnamed subspecies of Panacedechis papuanus (Papuan Blacksnake) from the same general region. The newly named taxa are: Hulimkai gen. nov., Pseudonaja textilis cliveevatti subsp. nov., Pseudonaja textilis leswilliamsi subsp. nov., Pseudonaja textilis rollinsoni subsp. nov., Pseudonaja textilis jackyhoserae subsp. nov., Pseudonaja guttata -
A Replacement Name for the Preoccupied Genus Name Adamas Huber, 1979 (Actinopterygii: Cyprinodontiformes)
_____________Mun. Ent. Zool. Vol. 1, No. 1, January 2006___________ 167 A REPLACEMENT NAME FOR THE PREOCCUPIED GENUS NAME ADAMAS HUBER, 1979 (ACTINOPTERYGII: CYPRINODONTIFORMES) Hüseyin Özdikmen*, Nazmi Polat**, Mahmut Yılmaz*** and Okan Yazıcıoğlu*** * Gazi Üniversitesi, Fen-Edebiyat Fakültesi, Biyoloji Bölümü, 06500 Ankara / TÜRKİYE, e-mail: [email protected] ** Gazi Üniversitesi, Fen-Edebiyat Fakültesi, Biyoloji Bölümü, 06500 Ankara / TÜRKİYE, e-mail: [email protected] *** Gazi Üniversitesi, Fen-Edebiyat Fakültesi, Biyoloji Bölümü, 06500 Ankara / TÜRKİYE, e-mails: [email protected]; [Özdikmen, H., Polat, N., Yılmaz, M. & Yazıcıoğlu, O. 2006. A replacement name for the preoccupied genus name Adamas Huber, 1979 (Actinopterygii: Cyprinodontiformes). Munis Entomology & Zoology, 1 (1): 167-168] ABSTRACT: A replacement name, Fenerbahce is proposed for the genus name Adamas Huber, 1979 in the fish family Aplocheilidae (Cyprinodontiformes). KEY WORDS: Fenerbahce, Adamas, homonymy, replacement name, Actinopterygii, Cyprinodontiformes, Aplocheilidae. Class Actinopterygii Order Cyprinodontiformes Family Aplocheilidae Genus Fenerbahce nom. nov. Adamas Huber, 1979. Journal Am. Killifish Ass. 12 (6): 166 and Revue fr. Aquariol. Herpetol. 6 (1): 6. (Actinopterygii: Cyprinodontiformes: Aplocheiloidei: Aplocheilidae: Aplocheilinae). Preoccupied by Adamas Malaise, 1945. Opusc. ent., Lund, Suppl. 4, 97. (Hymenoptera: Symphyta: Tenthredinoidea: Tenthredinidae: Allantinae: Adamasini). The genus name Adamas was proposed by Malaise, 1945 as an objective replacement name of the genus Dinax Konow, 1897 with the type species Dinax jakowleffi Konow, 1897. For the present, the genus Adamas Malaise, 1945 includes six species (Wei, 2004). Subsequently, the genus Adamas was described by Huber, 1979 with the type species Adamas formosus Huber, 1979 by monotypy from in front of Ntokou village near the banks of Likouala-Mossaka River, Congo. -
Eastern Snake-Necked Turtle
Husbandry Manual for Eastern Snake-Necked Turtle Chelodina longicollis Reptilia: Chelidae Image Courtesy of Jacki Salkeld Author: Brendan Mark Host Date of Preparation: 04/06/06 Western Sydney Institute of TAFE - Richmond Course Name and Number: 1068 Certificate 3 - Captive Animals Lecturers: Graeme Phipps/Andrew Titmuss/ Jacki Salkeld CONTENTS 1. Introduction 4 2. Taxonomy 5 2.1 Nomenclature 5 2.2 Subspecies 5 2.3 Synonyms 5 2.4 Other Common Names 5 3. Natural History 6 3.1 Morphometrics 6 3.1.1 Mass and Basic Body Measurements 6 3.1.2 Sexual Dimorphism 6 3.1.3 Distinguishing Features 7 3.2 Distribution and Habitat 7 3.3 Conservation Status 8 3.4 Diet in the Wild 8 3.5 Longevity 8 3.5.1 In the Wild 8 3.5.2 In Captivity 8 3.5.3 Techniques Used to Determine Age in Adults 9 4. Housing Requirements 10 4.1 Exhibit/Enclosure Design 10 4.2 Holding Area Design 10 4.3 Spatial Requirements 11 4.4 Position of Enclosures 11 4.5 Weather Protection 11 4.6 Temperature Requirements 12 4.7 Substrate 12 4.8 Nestboxes and/or Bedding Material 12 4.9 Enclosure Furnishings 12 5. General Husbandry 13 5.1 Hygiene and Cleaning 13 5.2 Record Keeping 13 5.3 Methods of Identification 13 5.4 Routine Data Collection 13 6. Feeding Requirements 14 6.1 Captive Diet 14 6.2 Supplements 15 6.3 Presentation of Food 15 1 7. Handling and Transport 16 7.1 Timing of Capture and Handling 16 7.2 Capture and Restraint Techniques 16 7.3 Weighing and Examination 17 7.4 Release 17 7.5 Transport Requirements 18 7.5.1 Box Design 18 7.5.2 Furnishings 19 7.5.3 Water and Food 19 7.5.4 Animals Per Box 19 7.5.5 Timing of Transportation 19 7.5.6 Release from Box 19 8. -
The Validity of the Fish Genus Name Fenerbahce Özdikmen Et Al., 2006 (Pisces: Cyprinodontiformes: Nothobranchiidae)
_____________Mun. Ent. Zool. Vol. 3, No. 1, January 2008__________ 291 THE VALIDITY OF THE FISH GENUS NAME FENERBAHCE ÖZDİKMEN ET AL., 2006 (PISCES: CYPRINODONTIFORMES: NOTHOBRANCHIIDAE) Hüseyin Özdikmen* * Gazi Üniversitesi, Fen-Edebiyat Fakültesi, Biyoloji Bölümü, 06500 Ankara / TÜRKİYE, e-mail: [email protected] [Özdikmen, H. 2008. The validity of the fish genus name Fenerbahce Özdikmen et al., 2006 (Pisces: Cyprinodontiformes: Nothobranchiidae). Munis Entomology & Zoology 3 (1): 291-294] ABSTRACT: According to ICZN (1999), a discussion on the validity of the genus name Fenerbahce Özdikmen et al., 2006: 167 is given. The replacement name Fenerbahce Özdikmen et al., 2006 for Adamas Huber, 1979 which is a junior homonym of Adamas Malaise, 1945 is an available and a valid name to the articles 8.6 and 9.8 in ICZN (1999). The derived family-group name, Adamantini Huber, 2000 that have been changed by Huber (2007) as Adamansini derived from the genus name Adamans Huber, 2007 also changes to Fenerbahceini nom. n. For this reason, Huber’s new names, Adamans Huber, 2007 and Adamansini Huber, 2007 are invalid and synonyms of Fenerbahce Özdikmen et al., 2006 and Fenerbahceini nom. nov. respectively. KEY WORDS: Fenerbahce, Adamas, Adamans, Adamansini, Fenerbahceini, Pisces. Huber published a paper in 2007 in the journal “Zoosystema”. In his paper entitled “Non-availability of a name electronically published: the case of Adamas Huber, 1979 (Pisces, Cyprinodontiformes, Nothobranchiidae), invalidly replaced on the Internet”, he stated that “According to the current Code (ICZN 1999), valid from January 1, 2000, a new name proposed on the Internet or on electronic fi les is available if, and only if, it complies with articles 8.6 and 9.8, as quoted hereafter: “8.6. -
Multigene Phylogeny of Cyprinodontiform Fishes Suggests Continental Radiations and a Rogue Taxon Position of Pantanodon
65 (1): 37 – 44 © Senckenberg Gesellschaft für Naturforschung, 2015. 4.5.2015 Multigene phylogeny of cyprinodontiform fishes suggests continental radiations and a rogue taxon position of Pantanodon Moritz Pohl 1, Finn C. Milvertz 2, Axel Meyer 3 & Miguel Vences 1, * 1 Zoological Institute, Technische Universität Braunschweig, Mendelssohnstr. 4, 38106 Braunschweig, Germany. —2 Litorinaparken 27, 2680 Solrød Strand, Denmark — 3 Lehrstuhl für Zoologie und Evolutionsbiologie, Department of Biology, University of Konstanz, 78457 Kon- stanz, Germany — * Corresponding author; m.vences(at)tu-bs.de Accepted 19.ii.2015. Published online at www.senckenberg.de / vertebrate-zoology on 4.v.2015. Abstract We studied phylogenetic relationships among major clades in the tooth carps (Cyprinodontiformes) based on a concatenated DNA se- quence alignment of two mitochondrial and three nuclear gene segments, totalling 2553 bp, in 66 ingroup terminals. The inferred tree sup- ports monophyly of the major tooth carp subgroups, aplocheiloids and cyprinodontoids, and of several aplocheiloid subclades correspond- ing to the well-established families (Aplocheilidae, Nothobranchiidae, Rivulidae), each of which is restricted to major continental settings (India-Madagascar, Africa, South America). Contrary to previous molecular studies, our tree supports a sister-group relationship of the aplocheilids and nothobranchiids, rather than a nothobranchiid-rivulid clade. Within cyprinodontoids, the phylogeny matched more closely continent-scale distribution than current classification, suggesting that the delimitation of the families Cyprinodontidae, Poeciliidae, and Valenciidae is in need of revision. The East African Pantanodon stuhlmanni did not show close relationships with any other taxon in our analysis, suggesting that the phylogenetic position and classification of this rogue taxon is in need of further study. -
Adaptation to Seasonally Ephemeral Aquatic Habitat Across Two Continents
UNIVERSITY OF CALIFORNIA RIVERSIDE The Evolution of an Annual Life Cycle in Killifish: Adaptation to Seasonally Ephemeral Aquatic Habitat Across Two Continents A Dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Evolution, Ecology, and Organismal Biology by Andrew Ian Furness August 2014 Dissertation Committee: Dr. David N. Reznick, Chairperson Dr. Joel L. Sachs Dr. Mark S. Springer Copyright by Andrew Ian Furness 2014 The Dissertation of Andrew Ian Furness is approved: Committee Chairperson University of California, Riverside Acknowledgements I thank my advisor, David Reznick, for being a great mentor, providing encouragement and support, and giving me the independence to pursue the questions I became most interested in. Joel Sachs and Mark Springer, my other two dissertation committee members, provided invaluable advice and guidance during the writing process. I am grateful to other UCR faculty that have served on my guidance and oral exam committees, namely Len Nunney, Helen Regan, Derek Roff, and Prue Talbot. I would also like to thank Mark Chappell and Rich Cardullo for advice on measuring metabolic rate and providing use of their equipment, and John Gatesy for interesting discussions about science. My scientific interactions with Dario Valenzano, Jason Podrabsky, and Rob Meredith helped shape my research ideas for the better. For their help and support I would like to thank the UCR Biology staff especially Melissa Gomez, Laurie Graham, Michael Fugate, and Laura Abbott. I would particularly like to acknowledge Melissa Gomez for her help and guidance throughout my time at UCR. Funding for parts of my dissertation research came from the University of California-Riverside, the Society for the Study of Evolution, and the Society of Integrative and Comparative Biology, and is gratefully acknowledged. -
Australia's Hidden Treasures
Australia’s hidden treasures WWF-Australia GPO Box 528 Sydney NSW Australia 2001 1800 032 551 wwf.org.au Published September 2009 by WWF-Australia. Cover image: Davies’ tree frog Litoria daviesae © Aaron Payne Compiled by Christian Thompson The Green Room Communications, Research & Design Auckland, Aotearoa New Zealand +64 21 02482110 [email protected] 2 At least 1,300 new species have been discovered or described in Australia between 1998 and 2008, Australia’s new equating to an average of 136 new species added every year for the last 10 years species Some of the richest and most valuable habitats on Earth can be found in Australia. 1,072 plants A staggering 14 of WWF’s Global 200 ecoregions, critical landscapes of international biological importance, are found here. These precious landscapes are home to some of Australia’s estimated 20,000 species of plant, 828 bird 195 fish species, 1,088 species of reptiles and amphibians, and 378 mammal species, including 50 of our most iconic species, the kangaroos, wallabies and their close 74 reptiles relatives. This confirms Australia’s place as one of the world’s 18 megadiverse countries; those that harbour the majority of the world’s species. 13 amphibians Such is the extent of Australia’s biodiversity that new species continue to be regularly described by science. Between 1998 and 2008 at least 1,300 new species were discovered or described in Australia. This equates to more than 7 mammals two new species a week on average every year for the past 10 years. Species discovered over the last decade include 1,072 plants, 195 fish, 56 lizards, 14 snakes, 13 frogs, 4 turtles, and 7 mammals. -
Venomoiden Die Bijten! Pain Is the Main Driver For
PIJN IS DE VOORNAAMSTE DRIJFVEER WAAROM GIFSLANGEN MENSEN BIJTEN. DEEL 2: VENOMOIDEN DIE BIJTEN! PAIN IS THE MAIN DRIVER FOR VENOMOUS SNAKEBITES IN HUMANS. PART 2: VENOMOIDS THAT BITE! Raymond Hoser Raymond Hoser Voor ik in detail inga op beten door veno- Before detailing venomoid bites, it should moiden, zou ik graag vermelden dat ve- be mentioned that venomoids are effecti- nomoiden direct na de operatie effectief vely harmless immediately post operation onschadelijk zijn. De bek wordt rijkelijk ge- due to the procedure of the operation. The spoeld met water aan het begin en het ein- mouth region is irrigated liberally with wa- de van de procedure, zodat alle gif wordt ter at the start and end of the procedure, weggespoeld. Hoewel er waar schijnlijk nog literally washing away venom remaining. beperkte gifresten achterblijven, bleek uit While residues no doubt remain, tests im- testen onmiddelijk na de operatie dat de mediately post operation showed that the slangen geen muizen konden doden. Van- snakes were unable to kill mice with bites wege deze feiten heb ik venomoiden een after the operations. On that basis veno- week na de ingreep altijd volledig onscha- moids were deemed harmless a week post delijk geacht en ze vanaf dat moment vrij operation and from that point on, all were gehanteerd. only ‘free handled’. Beten uitlokken bij de venomoiden was Getting the venomoids to bite was never nooit moeilijk (zie verder), hoewel dat nooit hard (see later), although it wasn’t actually mijn bedoeling was, integendeel. Venomoi- something I set out to do. The contrary den werden nooit uitgedaagd door er net was actually the case. -
See the Full Statement Here
25 May 2021 Statement of the SAB on taxonomic vandalism for the Reptile Database The Reptile Database attempts to make balanced decisions on reptile taxonomy and nomenclature based on available and science-based published data. However, the database occasionally has to make decisions between contradictory opinions or conclusions, usually in consultation with experts. While the RDB normally follows the International Code of Zoological Nomenclature, this does not provide rules for every possible case. This sometimes requires us to take decisions outside the letter of the Code that the International Commission on Zoological Nomenclature (ICZN) is unwilling or unable to make. For instance, the ICZN has ruled on April 30, 2021 that it will not suppress the Australasian Journal of Herpetology or any of Raymond Hoser’s published names (ICZN 2021). However, the Reptile Database decided that it will not accept his publications and has chosen to follow the arguments of others (e.g. Kaiser et al. 2013, Krell 2021) in ignoring these works and their names. It has become common practice in herpetology to overwrite names coined outside the scientific literature with science-based names (aspidonyms sensu Wüster et al., 2021). In such cases, we only use the science-based name in the Database. The overwritten unscientific names are currently not used in the database although they may be mentioned in comments, just to make these decisions more transparent. This statement is supported and approved by These members abstained: the following SAB members (listed alphabetically): Allen Allison Glenn Shea Luciano J. Avila Frank T. Burbrink Salvador Carranza Guarino R. Colli Brian I. -
Taxonomic Contributions in the "Amateur" Literature: Comments on Recent Descriptions of New Genera and Species by Raymond Hoser
Taxonomic contributions in the "amateur" literature: comments on recent descriptions of new genera and species by Raymond Hoser 1 2 3 4 WOLFGANG WÜSTER , BRIAN BUSH , J. SCOTT KEOGH , MARK O'SHEA , & 5 RICHARD SHINE 1 School of Biological Sciences, University of Wales, Bangor, LL57 2UW, Wales, UK 2 Snakes Harmful & Harmless, 9 Birch Place, Stoneville, WA 6081, Australia 3 School of Botany & Zoology, Australian National University, Canberra, ACT 0200, Australia 4 10 Gatcombe Way, Priorslee, Telford, Shropshire TF2 9GZ, UK 5 The University of Sydney, N.S.W. 2006, Australia Reptiles and amphibians hold considerable fascination for a growing number of people. In recent years, this has led to an almost exponential increase in the number of reptile aficionados, spanning the entire spectrum from children keeping a couple of corn snakes as pets to persons professionally employed by research institutions to carry out research work on reptiles. In between are found a wide variety of individuals who do not make their living studying reptiles, but invest an often considerable amount of energy and resources into the study or husbandry and reproduction of their reptiles. It is clear that the majority of reptile enthusiasts fall into this latter group, rather than among the institutional professionals. While institutional and non- institutional herpetologists are sometimes artificially segregated into "amateurs" and "professionals", this is an artificial dichotomy which misrepresents what is in reality a continuum, as is illustrated by the list of authors of this article. The increasing size and importance of the non-institutional sector in herpetology has led to a parallel increase in the number of journals and magazines catering to this group.