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Morphological and Genetic Comparative
Revista Mexicana de Biodiversidad 79: 373- 383, 2008 Morphological and genetic comparative analyses of populations of Zoogoneticus quitzeoensis (Cyprinodontiformes:Goodeidae) from Central Mexico, with description of a new species Análisis comparativo morfológico y genético de diferentes poblaciones de Zoogoneticus quitzeoensis (Cyprinodontiformes:Goodeidae) del Centro de México, con la descripción de una especie nueva Domínguez-Domínguez Omar1*, Pérez-Rodríguez Rodolfo1 and Doadrio Ignacio2 1Laboratorio de Biología Acuática, Facultad de Biología, Universidad Michoacana de San Nicolás de Hidalgo, Fuente de las Rosas 65, Fraccionamiento Fuentes de Morelia, 58088 Morelia, Michoacán, México 2Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales, José Gutiérrez Abascal 2, 28006 Madrid, España. *Correspondent: [email protected] Abstract. A genetic and morphometric study of populations of Zoogoneticus quitzeoensis (Bean, 1898) from the Lerma and Ameca basins and Cuitzeo, Zacapu and Chapala Lakes in Central Mexico was conducted. For the genetic analysis, 7 populations were sampled and 2 monophyletic groups were identifi ed with a genetic difference of DHKY= 3.4% (3-3.8%), one being the populations from the lower Lerma basin, Ameca and Chapala Lake, and the other populations from Zacapu and Cuitzeo Lakes. For the morphometric analysis, 4 populations were sampled and 2 morphotypes identifi ed, 1 from La Luz Spring in the lower Lerma basin and the other from Zacapu and Cuitzeo Lakes drainages. Using these 2 sources of evidence, the population from La Luz is regarded as a new species Zoogoneticus purhepechus sp. nov. _The new species differs from its sister species Zoogoneticus quitzeoensis_ in having a shorter preorbital distance (Prol/SL x = 0.056, SD = 0.01), longer dorsal fi n base length (DFL/SL x = 0.18, SD = 0.03) and 13-14 rays in the dorsal fi n. -
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. -
Endangered Species (Protection, Conser Va Tion and Regulation of Trade)
ENDANGERED SPECIES (PROTECTION, CONSER VA TION AND REGULATION OF TRADE) THE ENDANGERED SPECIES (PROTECTION, CONSERVATION AND REGULATION OF TRADE) ACT ARRANGEMENT OF SECTIONS Preliminary Short title. Interpretation. Objects of Act. Saving of other laws. Exemptions, etc., relating to trade. Amendment of Schedules. Approved management programmes. Approval of scientific institution. Inter-scientific institution transfer. Breeding in captivity. Artificial propagation. Export of personal or household effects. PART I. Administration Designahem of Mana~mentand establishment of Scientific Authority. Policy directions. Functions of Management Authority. Functions of Scientific Authority. Scientific reports. PART II. Restriction on wade in endangered species 18. Restriction on trade in endangered species. 2 ENDANGERED SPECIES (PROTECTION, CONSERVATION AND REGULA TION OF TRADE) Regulation of trade in species spec fled in the First, Second, Third and Fourth Schedules Application to trade in endangered specimen of species specified in First, Second, Third and Fourth Schedule. Export of specimens of species specified in First Schedule. Importation of specimens of species specified in First Schedule. Re-export of specimens of species specified in First Schedule. Introduction from the sea certificate for specimens of species specified in First Schedule. Export of specimens of species specified in Second Schedule. Import of specimens of species specified in Second Schedule. Re-export of specimens of species specified in Second Schedule. Introduction from the sea of specimens of species specified in Second Schedule. Export of specimens of species specified in Third Schedule. Import of specimens of species specified in Third Schedule. Re-export of specimens of species specified in Third Schedule. Export of specimens specified in Fourth Schedule. PART 111. -
Ducks, Geese, and Swans of the World: Sources Cited
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Ducks, Geese, and Swans of the World by Paul A. Johnsgard Papers in the Biological Sciences 2010 Ducks, Geese, and Swans of the World: Sources Cited Paul A. Johnsgard University of Nebraska-Lincoln, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/biosciducksgeeseswans Part of the Ornithology Commons Johnsgard, Paul A., "Ducks, Geese, and Swans of the World: Sources Cited" (2010). Ducks, Geese, and Swans of the World by Paul A. Johnsgard. 17. https://digitalcommons.unl.edu/biosciducksgeeseswans/17 This Article is brought to you for free and open access by the Papers in the Biological Sciences at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Ducks, Geese, and Swans of the World by Paul A. Johnsgard by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Sources Cited Alder, L. P. 1963. The calls and displays of African and In Bellrose, F. C. 1976. Ducks, geese and swans of North dian pygmy geese. In Wildfowl Trust, 14th Annual America. 2d ed. Harrisburg, Pa.: Stackpole. Report, pp. 174-75. Bellrose, F. c., & Hawkins, A. S. 1947. Duck weights in Il Ali, S. 1960. The pink-headed duck Rhodonessa caryo linois. Auk 64:422-30. phyllacea (Latham). Wildfowl Trust, 11th Annual Re Bengtson, S. A. 1966a. [Observation on the sexual be port, pp. 55-60. havior of the common scoter, Melanitta nigra, on the Ali, S., & Ripley, D. 1968. Handbook of the birds of India breeding grounds, with special reference to courting and Pakistan, together with those of Nepal, Sikkim, parties.] Var Fagelvarld 25:202-26. -
Mis Caratulas 1 CORRECCION ADELITA
Universidad de San Carlos de Guatemala Centro de Estudios del Mar y Acuicultura TRABAJO DE GRADUACIÓN Peces de aguas continentales presentes en las colecciones de referencia de Guatemala Presentado por T.A. ADA PATRICIA ESTRADA ALDANA Para otorgarle el título de: LICENCIADA EN ACUICULTURA Guatemala, septiembre de 2012 UNIVERSIDAD DE SAN CARLOS DE GUATEMALA CENTRO DE ESTUDIOS DEL MAR Y ACUICULTURA CONSEJO DIRECTIVO Presidente M.Sc. Erick Roderico Villagrán Colón Coordinadora Académica M.Sc. Norma Edith Gil Rodas de Castillo Representante Docente Ing. Agr. Gustavo Adolfo Elías Ogaldez Representante Docente M.BA. Allan Franco De León Representante Estudiantil T.A. Dieter Walther Marroquín Wellmann Representante Estudiantil T.A. José Andrés Ponce Hernández AGRADECIMIENTOS A la Universidad de San Carlos de Guatemala y al Centro de Estudios del Mar y Acuicultura por prepararme académicamente. Al Centro de Datos para la Conservación del Centro de Estudios Conservacionistas, por su colaboración y apoyo. Al Museo de Historia Natural de la Universidad de San Carlos de Guatemala por el apoyo y confianza que me brindaron. Al programa EPSUM de la Universidad de San Carlos de Guatemala. A todas aquellas personas que contribuyeron a mi formación. DEDICATORIA A Dios por protegerme, darme la vida y ser fuente de sabiduría. A mis padres Marco Tulio Estrada Figueroa y Silvia Margarita Aldana y Aldana, quienes con mucho amor, esfuerzo y sacrificio me llevaron hasta la meta que hoy alcanzo. Este triunfo es para ustedes. A mi abuelita Rosa Isabel Aldana (Q.E.P.D.) y a mi tía Ada Luz Aldana por el cariño, buen ejemplo, consejos y apoyo que siempre me brindaron. -
Butterfly Splitfin (Ameca Splendens) Ecological Risk Screening Summary
Butterfly Splitfin (Ameca splendens) Ecological Risk Screening Summary U.S. Fish and Wildlife Service, January 2013 Revised, January 2018 Web Version, 8/27/2018 Photo: Ameca splendens. Source: Getty Images. Available: https://rmpbs.pbslearningmedia.org/resource/128605480-endangered-species/butterfly-goodeid- ameca-splendens/#.Wld1X7enGUk. (January 2018). 1 1 Native Range and Status in the United States Native Range From Fuller (2018): “This species is confined to a very small area, the Río Ameca basin, on the Pacific Slope of western Mexico (Miller and Fitzsimons 1971).” From Goodeid Working Group (2018): “This species comes from the Pacific Slope and inhabits the Río Ameca and its tributary, the Río Teuchitlán in Jalisco. More habitats in the ichthyological [sic] closely connected Sayula valley have been detected quite recently.” Status in the United States From Fuller (2018): “Reported from Nevada. Records are more than 25 years old and the current status is not known to us. One individual was taken in November 1981 (museum specimen) and another in August 1983 from Rodgers Spring, Nevada (Courtenay and Deacon 1983, Deacon and Williams 1984). Others were seen and not collected (Courtenay, personal communication).” From Goodeid Working Group (2018): “Miller reported, that on 6 May 1982, this species was collected in Roger's Spring, Clark County, Nevada, (pers. comm. to Miller by P.J. Unmack) where it is now extirpated. It had been exposed there with several other exotic species (Deacon [and Williams] 1984).” From FAO (2018): “Status of the introduced species in the wild: Probably not established.” From Froese and Pauly (2018): “Raised commercially in Florida, U.S.A.” Means of Introductions in the United States From Fuller (2018): “Probably an aquarium release.” Remarks From Fuller (2018): “Synonyms and Other Names: butterfly goodeid.” 2 From Goodeid Working Group (2018): “Some hybridisation attempts have been undertaken with the Butterfly Splitfin to solve its relationship. -
2020 Newsletter
2020 ANNUAL NEWSLETTER Biological Sciences Happy Holidays from Biological Sciences at Western Michigan University. TABLE OF CONTENTS Letter from the Chair Page 2 Condolences - Emeriti Professors Page 3 , Molecular & Cellular Biology Page 4 Faculty Research Continues Page 5 & 6 Finding a New Way Page 7 We present you with the 2020 Biological Sciences Newsletter. It has been an eventful year and we want to Gene Convene share some of the highlights from the ever changing ways of Page 8 teaching and research. We hope you will feel part of our Students present department as you read. research Page 9 Re-imagine Labs 1 2 3 Page 10 Grants & Publications 2020 Page 11 A YEAR OF CHANGE DEPARTMENT ACTIVE, LEADING THE WAY TO Support the & FLEXIBILITY DESPITE PANDEMIC THE NEW NORMAL Department Page 15 1 BIOLOGICAL SCIENCES, WESTERN MICHIGAN UNIVERSITY 2020 NEWSLETTER Letter from the Chair Dear Friends and Alumni of the Department of Biological Sciences, We have had an unprecedented year and yet the department has thrived throughout the challenges. Our undergraduate programs include about 700 students and the graduate program holds 68 students. We are among the largest departments at WMU. Life in the department was normal and very active until March when the state declared a shelter in place. Classes turned 100% remote with a 3-day notice. No one was allowed on campus so research came to a screeching halt. All doors were locked for 5 weeks. There were only a few people allowed inside to maintain living things – animals, plants, etc. In May, they required “return to research plans” from anyone wanting to return to research labs. -
King Eiders Mated with Common Eiders in Iceland
KING EIDERS MATED WITH COMMON EIDERS IN ICELAND BY OLIN SEWALL PETTINGILL, JR. HE Common Eider (Somateriu mollissima) is one of Icelands’ most T abundant birds, with an estimated breeding population of a half million individuals (see Pettingill, 1959). Th e majority nest in colonies whose sizes range from a few pairs to many hundreds. From May 24 to 27, 1958, it was my good fortune to study and film one of the largest colonies (5,000 nests), situated on the farm of Gisli Vagnsson, along the DyrafjSrdur in Northwest Iceland. Egg-laying at this time was virtually completed, with incubation just getting under way. In my earlier paper (op. cit.) I have described the colony and pointed out that the males were present, each one stationed close to a nest while his mate sat on it. Many nests were near together-in a few cases as close as two feet, with the result that there was marked hostility among the guarding males. Presumably the males departed from the colony after the first ten days of incubation as they did on the Inner Farne (Tinbergen, 1958)) an island off the northeast coast of England. Before I visited the Vagnsson colony, Dr. Finnur Gudmundsson, Curator in the Natural History Museum at Reykjavik, told me that I should expect to find from one to several male King Eiders (S. spectabilis) mated with female Common Eiders. He had noted many mixed pairs himself in various Iceland colonies and once published an account of his observations (Gudmundsson, 1932:96-97). He went on to say that such matings are of “frequent occur- rence” in Iceland and have been known about since the 18th Century. -
Constraints on the Timescale of Animal Evolutionary History
Palaeontologia Electronica palaeo-electronica.org Constraints on the timescale of animal evolutionary history Michael J. Benton, Philip C.J. Donoghue, Robert J. Asher, Matt Friedman, Thomas J. Near, and Jakob Vinther ABSTRACT Dating the tree of life is a core endeavor in evolutionary biology. Rates of evolution are fundamental to nearly every evolutionary model and process. Rates need dates. There is much debate on the most appropriate and reasonable ways in which to date the tree of life, and recent work has highlighted some confusions and complexities that can be avoided. Whether phylogenetic trees are dated after they have been estab- lished, or as part of the process of tree finding, practitioners need to know which cali- brations to use. We emphasize the importance of identifying crown (not stem) fossils, levels of confidence in their attribution to the crown, current chronostratigraphic preci- sion, the primacy of the host geological formation and asymmetric confidence intervals. Here we present calibrations for 88 key nodes across the phylogeny of animals, rang- ing from the root of Metazoa to the last common ancestor of Homo sapiens. Close attention to detail is constantly required: for example, the classic bird-mammal date (base of crown Amniota) has often been given as 310-315 Ma; the 2014 international time scale indicates a minimum age of 318 Ma. Michael J. Benton. School of Earth Sciences, University of Bristol, Bristol, BS8 1RJ, U.K. [email protected] Philip C.J. Donoghue. School of Earth Sciences, University of Bristol, Bristol, BS8 1RJ, U.K. [email protected] Robert J. -
Passive Citizen Science: the Role of Social Media in Wildlife Observations
Passive citizen science: the role of social media in wildlife observations 1Y* 1Y 1Y Thomas Edwards , Christopher B. Jones , Sarah E. Perkins2, Padraig Corcoran 1 School Of Computer Science and Informatics, Cardiff University, Cardiff, UK 2 School of Biosciences, Cardiff University, Cardiff, CF10 3AX YThese authors contributed equally to this work. * [email protected] Abstract Citizen science plays an important role in observing the natural environment. While conventional citizen science consists of organized campaigns to observe a particular phenomenon or species there are also many ad hoc observations of the environment in social media. These data constitute a valuable resource for `passive citizen science' - the use of social media that are unconnected to any particular citizen science program, but represent an untapped dataset of ecological value. We explore the value of passive citizen science, by evaluating species distributions using the photo sharing site Flickr. The data are evaluated relative to those submitted to the National Biodiversity Network (NBN) Atlas, the largest collection of species distribution data in the UK. Our study focuses on the 1500 best represented species on NBN, and common invasive species within UK, and compares the spatial and temporal distribution with NBN data. We also introduce an innovative image verification technique that uses the Google Cloud Vision API in combination with species taxonomic data to determine the likelihood that a mention of a species on Flickr represents a given species. The spatial and temporal analyses for our case studies suggest that the Flickr dataset best reflects the NBN dataset when considering a purely spatial distribution with no time constraints. -
Phylogenetic Relationships of Species of the Genus Brachyrhaphis (Poeciliidae) Inferred from Partial Mitochondrial DNA Sequences
Copeia, 1997(2). pp. 298-305 Phylogenetic Relationships of Species of the Genus Brachyrhaphis (Poeciliidae) Inferred from Partial Mitochondria1 DNA Sequences C.4~11~1,~L. MOJICA,AXEL MEYER,AND GEORGEW. BARLOW Phylogenetic relationships were reconstructed using partial mitochondrial DNA sequence data for the cytochrome b gene among all nine described species of Bra- &flaphis and several members of the tribe Gambusiini. We included three of the more than 40 members of the genus Gambusia and Belonesox belimnus, the third, monotypic genus of the tribe Gambusiini. Xiphophorus malinche served as the out- group. Phylogenetic trees were generated using maximum-parsimony, maximum- likelihood, and neighbor-joining analyses. Hypotheses of relationships withii the tribe and genus Brachyrhaphis made by previous authors were tested. The existence of a slim- and a deep-bodied clade within the monophyletic genus BraFhflaphis was supported. Bmchyrhaphis hariwegi is the basal member of the deep-bodied clade, whereas B. punctifer is the basal member of the slim-bodied clade. PECIES of the genus Brachyrhaphis are found unique condition within the family. Anal fins of S in freshwater streams, rivers, and swamps of females of some species are as colorful as the Central America. The geographic distribution male gonopodia. Additionally, the black pig- of Brachyrhaphis is disjunct; seven of the eight ment is placed in such a way in the females of species are found in Costa Rica and Panama, certain species that it traces the first three rays whereas the eighth species, B. hartwegi, is found of the anal fin from their origin to the tip. This in Guatemala (Rosen and Bailey, 1963). -
Supplementary Information
Supporting Information Balk et al. 10.1073/pnas.0902903106 Movie S1. A paralyzed herring gull (Larus argentatus). This movie shows a specimen from the County of So¨ dermanland (region G in Fig. 1). Both wings are equally paralyzed and the beak has no strength, whereas mobility and control of the head still remain. In this work we demonstrate that the probability to remedy an individual in this condition by thiamine treatment is very high. The movie is taken in the field, but the specimen is placed on a black tablecloth in order to remove disturbing background and enhance contrast. Movie S1 (AVI) Other Supporting Information Files SI Appendix Balk et al. www.pnas.org/cgi/content/short/0902903106 1of1 Supporting Information Wild birds of declining European species are dying from a thiamine deficiency syndrome L. Balk*, P.-Å. Hägerroth, G. Åkerman, M. Hanson, U. Tjärnlund, T. Hansson, G. T. Hallgrimsson, Y. Zebühr, D. Broman, T. Mörner, H. Sundberg *Corresponding author: [email protected] Contents Pages M & M Materials and Methods. 2–10 Text S1 Additional bird species affected by the paralytic disease. 11 Text S2 Additional results for eggs. 12–13 Text S3 Results for liver body index (LBI) in pulli. 14–15 Text S4 Breeding output and population estimates. 16–18 Text S5 Elaborated discussion of important aspects. 19–27 Acknowl. Further acknowledgements. 28 Fig. S1 a–j The 83 locations where samples were collected. 29–30 Fig. S2 a–d Pigmentation changes in the iris of the herring gull (Larus argentatus). 31 Fig. S3 Liver α-ketoglutarate dehydrogenase (KGDH) in common black-headed gull (Chroicocephalus ridibundus).