Lista Roja De Especies En Peligro
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Elevational Gradients Do Not Affect Thermal Tolerance at Local Scale in Populations of Livebearing Fishes of the Genus Limia (Cyprinodontiformes: Poeciliinae)
46 NOVITATES CARIBAEA 18: 46–62, 2021 ELEVATIONAL GRADIENTS DO NOT AFFECT THERMAL TOLERANCE AT LOCAL SCALE IN POPULATIONS OF LIVEBEARING FISHES OF THE GENUS LIMIA (CYPRINODONTIFORMES: POECILIINAE) Gradientes de elevación no afectan la tolerancia térmica a escala local en poblaciones de peces vivíparos del género Limia (Cyprinodontiformes: Poeciliinae) Rodet Rodriguez-Silva1a* and Ingo Schlupp1b 1Department of Biology, University of Oklahoma, 730 Van Vleet Oval, Norman, OK 73019; 1a orcid.org/0000– 0002–7463–8272; 1b orcid.org/0000–0002–2460–5667, [email protected]. *Corresponding author: rodet.rodriguez. [email protected]. ABSTRACT One of the main assumptions of Janzen’s mountain passes hypothesis is that due the low overlap in temperature regimes between low and high elevations in the tropics, organisms living in high-altitude evolve narrow tolerance for colder temperatures while low-altitude species develop narrow tolerance for warmer temperatures. Some studies have questioned the generality of the assumptions and predictions of this hypothesis suggesting that other factors different to temperature gradients between low and high elevations may explain altitudinal distribution of species in the tropics. In this study we test some predictions of the Janzen’s hypothesis at local scales through the analysis of the individual thermal niche breadth in populations of livebearing fishes of the genus Limia and its relationship with their altitudinal distribution in some islands of the Greater Antilles. We assessed variation in tolerance to extreme temperatures (measured as critical thermal minimum (CTmin) and maximum (CTmax) and compared thermal breadth for populations of eight species of Limia occurring in three Caribbean islands and that occupy different altitudinal distribution. -
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. -
Literature Cited in Lizards Natural History Database
Literature Cited in Lizards Natural History database Abdala, C. S., A. S. Quinteros, and R. E. Espinoza. 2008. Two new species of Liolaemus (Iguania: Liolaemidae) from the puna of northwestern Argentina. Herpetologica 64:458-471. Abdala, C. S., D. Baldo, R. A. Juárez, and R. E. Espinoza. 2016. The first parthenogenetic pleurodont Iguanian: a new all-female Liolaemus (Squamata: Liolaemidae) from western Argentina. Copeia 104:487-497. Abdala, C. S., J. C. Acosta, M. R. Cabrera, H. J. Villaviciencio, and J. Marinero. 2009. A new Andean Liolaemus of the L. montanus series (Squamata: Iguania: Liolaemidae) from western Argentina. South American Journal of Herpetology 4:91-102. Abdala, C. S., J. L. Acosta, J. C. Acosta, B. B. Alvarez, F. Arias, L. J. Avila, . S. M. Zalba. 2012. Categorización del estado de conservación de las lagartijas y anfisbenas de la República Argentina. Cuadernos de Herpetologia 26 (Suppl. 1):215-248. Abell, A. J. 1999. Male-female spacing patterns in the lizard, Sceloporus virgatus. Amphibia-Reptilia 20:185-194. Abts, M. L. 1987. Environment and variation in life history traits of the Chuckwalla, Sauromalus obesus. Ecological Monographs 57:215-232. Achaval, F., and A. Olmos. 2003. Anfibios y reptiles del Uruguay. Montevideo, Uruguay: Facultad de Ciencias. Achaval, F., and A. Olmos. 2007. Anfibio y reptiles del Uruguay, 3rd edn. Montevideo, Uruguay: Serie Fauna 1. Ackermann, T. 2006. Schreibers Glatkopfleguan Leiocephalus schreibersii. Munich, Germany: Natur und Tier. Ackley, J. W., P. J. Muelleman, R. E. Carter, R. W. Henderson, and R. Powell. 2009. A rapid assessment of herpetofaunal diversity in variously altered habitats on Dominica. -
Observation of Geophagy by Hispaniolan Crossbill (Loxia Megaplaga) at an Abandoned Bauxite Mine
J. Carib. Ornithol. 25:98–101, 2012 OBSERVATION OF GEOPHAGY BY HISPANIOLAN CROSSBILL (LOXIA MEGAPLAGA) AT AN ABANDONED BAUXITE MINE STEVEN C. LATTA The National Aviary, Allegheny Commons West, Pittsburgh, PA 15212; email: [email protected] Abstract: I report an observation of endangered Hispaniolan Crossbill (Loxia megaplaga) feeding on soils near abandoned bauxite mines in the Sierra de Bahoruco, Dominican Republic. Although geophagy has been widely re- ported from a number of bird taxa, especially Neotropical parrots and boreal carduelines, this is the first report of this behavior from birds in the Caribbean. Based on the known ecology of this crossbill and published reports of local soil characteristics, I suggest testable hypotheses on why soils may be ingested by this species, including the crossbills’ need for dietary salts and their need to detoxify the pine seeds which are their main diet items. Key words: calcium, crossbills, diet, geophagy, Hispaniola, Loxia megaplaga, soil, toxicity Resumen: OBSERVACIÓN DE GEOFAGIA EN LOXIA MEGAPLAGA EN UNA MINA DE BAUXITA ABANDONADA. Observé a Loxia megaplaga, especie amenazada de La Española, alimentándose de barro cerca de minas de bauxita abando- nadas en la Sierra de Bahoruco, República Dominicana. Aunque la geofagia ha sido registrada ampliamente en nu- merosos taxones de aves, especialmente en loros y carduelínidos boreales, este es el primer registro de esta conducta en el Caribe. Basado en el conocimiento de la ecología de esta especie y en los registros publicados sobre las carac- terísticas de los suelos locales, sugiero una hipótesis comprobable de por qué ingieren barro estas especies que inclu- ye la necesidad de suplementos de sales y de detoxificar las semillas de pino que constituyen el principal artículo de su dieta. -
2008 Board of Governors Report
American Society of Ichthyologists and Herpetologists Board of Governors Meeting Le Centre Sheraton Montréal Hotel Montréal, Quebec, Canada 23 July 2008 Maureen A. Donnelly Secretary Florida International University Biological Sciences 11200 SW 8th St. - OE 167 Miami, FL 33199 [email protected] 305.348.1235 31 May 2008 The ASIH Board of Governor's is scheduled to meet on Wednesday, 23 July 2008 from 1700- 1900 h in Salon A&B in the Le Centre Sheraton, Montréal Hotel. President Mushinsky plans to move blanket acceptance of all reports included in this book. Items that a governor wishes to discuss will be exempted from the motion for blanket acceptance and will be acted upon individually. We will cover the proposed consititutional changes following discussion of reports. Please remember to bring this booklet with you to the meeting. I will bring a few extra copies to Montreal. Please contact me directly (email is best - [email protected]) with any questions you may have. Please notify me if you will not be able to attend the meeting so I can share your regrets with the Governors. I will leave for Montréal on 20 July 2008 so try to contact me before that date if possible. I will arrive late on the afternoon of 22 July 2008. The Annual Business Meeting will be held on Sunday 27 July 2005 from 1800-2000 h in Salon A&C. Please plan to attend the BOG meeting and Annual Business Meeting. I look forward to seeing you in Montréal. Sincerely, Maureen A. Donnelly ASIH Secretary 1 ASIH BOARD OF GOVERNORS 2008 Past Presidents Executive Elected Officers Committee (not on EXEC) Atz, J.W. -
Elevational Gradients Do Not Affect Thermal Tolerance at Local Scale In
bioRxiv preprint doi: https://doi.org/10.1101/2020.12.26.424431; this version posted December 27, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 Elevational gradients do not affect thermal tolerance at local scale in 2 populations of livebearing fishes of the genus Limia (Teleostei, Poeciliidae) 3 4 Rodet Rodriguez Silva1 and Ingo Schlupp1 5 1Department of Biology, University of Oklahoma, 730 Van Vleet Oval, Norman, OK 6 73019. 7 8 Correspondence: 9 Rodet Rodriguez Silva, Department of Biology, University of Oklahoma, 730 Van Vleet 10 Oval, Norman, OK 73019 11 Email: [email protected] 12 13 Funding information: 14 This study was supported by the National Geographic Society (WW-054R-17) and the 15 University of Oklahoma. 16 17 Abstract 18 One of the main assumptions of Janzen’s (1976) mountain passes hypothesis is that due 19 the low overlap in temperature regimes between low and high elevations in the tropics, 20 organisms living in high-altitude evolve narrow tolerance for colder temperatures while 21 low-altitude species develop narrow tolerance for warmer temperatures. Some studies 22 have questioned the generality of the assumptions and predictions of this hypothesis 23 suggesting that other factors different to temperature gradients between low and high 1 bioRxiv preprint doi: https://doi.org/10.1101/2020.12.26.424431; this version posted December 27, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. -
DETERMINATION of the AGE of PINUS OCCIDENTALIS in LA CELESTINA, DOMINICAN REPUBLIC, by the USE of GROWTH RINGS Xander M. Van
IAWA Journal,VoI.18(2), 1997: 139-146 DETERMINATION OF THE AGE OF PINUS OCCIDENTALIS IN LA CELESTINA, DOMINICAN REPUBLIC, BY THE USE OF GROWTH RINGS by Xander M. van der Burgt I Instituto Superior de Agricultura, Apartado 166, Santiago, Republica Dominicana SUMMARY The growth rings of Pinus occidentalis Swartz trees in La Celestina, Dominican Republic, show between-tree uniformity. With difficulty, two mean time series were made from ring widths of 1) all visible, includ ing intra-annual, rings and 2) groups of rings that were hypothesized to be annual. Both were compared with a 63-year range of rainfall data. An annual periodicity in wood formation is present, but obscured by many intra-annual rings. The annual periodicity of the trees may be a remnant of their possible origin from higher altitudes, where frosts may occur during the cold season. The youngest of the 7 investigated trees was about 39 years old; the oldest about 46 years. These seven trees contain be tween approximately 2 and 6 growth rings per year, with an average of about 3.5-4. Key words: Tropical trees, Pinus occidentalis, growth periodicity, rainfall, annual growth, intra-annual rings. INTRODUCTION The forestry and rural development project La Celestina is situated near San Jose de las Matas in the Dominican Republic. In La Celestina the only legal sawmill of the country can be found, surrounded by Pinus occidentalis forests. The exact age of the pine trees is unknown, because the forests were surveyed for the first time in 1980 (Plan Sierra 1991). For the benefit of a sustainable management of these forests it is crucial to know the age of the trees. -
Florida State Museum
BULLETIN OF THE FLORIDA STATE MUSEUM BIOLOGICAL SCIENCES Volume 10 Number 6 SPHAERODACTYLUS (GEKKONIDAE) IN THE GREATER PUERTO RICO REGION Richard Thomas and Albert Schwartz 4 Of 01'...a, I 4 -i I ../853 UNIVERSITY OF FLORIDA Gainesville 1966 Numbers of'the. BULLETIN OF THE FL0RIDA STA,TE MUSEUM ara pub- lished at irregular intdvalk. Volumes 66ntain abdut 500 balds and .ate not neq- 65*arily completed, in 'any dne cabndif *4. WALTER AUFFENBERG, Mdnaging Editor OLIVER L. AUSTIN, JR., Editor Consultants for this issue. WALTER AUFFENBERG AND ERNEST E. 'WILLIAMS Communications concerning purchase or exchange of the publicat{65 and 411 manuscripts should be addressed to the Managing Editor of the Bulletin, Florida State Museum, Seagle Building, Gainesville, F16rida. 82601 Published April 6, 1966 Price for' this, issue $.90 SPHAERODACTYLUS (GEKKONIDAE) IN THE GREATER PUERTO RICO REGION RICHARD THOMAS AND ALBERT SCHWARTZ 1 SYNOPSIS: The geckos of the genus Sphaerodactylus in Greater Puerto Rico (those West Indian islands between Mona Passage and Anegada Passage) are dis- cussed in detail. S. macrolepis Gunther and S. grandisquamis Stejneger are com- bined, and seven new subspecies of the resulting S. macrolepis are described from Puerto Rico and Isla Vieques. S. nicholsi Grant and S. townsendi Grant are regarded as races of a single. species. S. danforthi Grant is considered a synonym of S. macrotepis Gunther. A new subspecies of S. beattyi G~ant is described from St. Croix. Variation, detailed discussions of coloration and pattern, and geo- graphic distribution of the remaining Puerto Rican forms are given and a hypo- thetical history of the macrolepis complex is presented. -
Texto Completo (Pdf)
CARACTERIZACIÓN DE LA MORFOLOGÍA DE LA SEMILLA DE PINUS OCCIDENTALIS SWARTZ Morphology characterization of Pinus occidentalis Swartz seeds Virgilio Antonio Miniño Mejía Luis Enrique Rodríguez de Francisco Omar Paino Perdomo Yolanda León * Liz Paulino Resumen: La gran biodiversidad de especies de plantas en la isla La Española, hace conveniente la elaboración de trabajos que permitan identificar las familias, géneros y especies, a partir de diversos caracteres, como los anatómicos. En la República Dominicana se carece de investigaciones sobre las semillas de las especies endémicas. Es importante profundizar en estudios morfológicos y anatómicos de las semillas de nuestras especies y emplearlas con diferentes fines, como orientación taxonómica, conocer más sobre su ecología, entre otros. En nuestro trabajo tratamos de utilizar un carácter relevante de Pinus occidentalis, como es su semilla. El presente estudio nos permite conocer sobre la superficie de la semilla de Pinus occidentalis, pues la morfología de la semilla juega un papel importante en la dispersión de la especie. Palabras clave: Biodiversidad, especies, Pinus occidentalis, morfología, semilla. * Todos los autores son docentes e investigadores del Instituto Tecnológico de Santo Domingo (INTEC). Ciencia y Sociedad 2014; 39(4): 777-801 777 Virgilio Antonio Miniño Mejía, Luis Enrique Rodríguez de Francisco, Omar Paino Perdomo, Yolanda León, Liz Paulino Abstract: The rich biodiversity of plant species on the Hispaniola Island of makes has an advantage on the elaboration of projects to identify families, genera and species, from various characters, such as anatomical. The Dominican Republic lacks research on the seeds of endemic species. It is important to look into mor- phological and anatomical studies of the seeds of our species and use them for different purposes, such as taxonomic orientation, learn more about their ecology, among other purposes. -
Full Account (PDF)
FULL ACCOUNT FOR: Canis lupus Canis lupus System: Terrestrial Kingdom Phylum Class Order Family Animalia Chordata Mammalia Carnivora Canidae Common name Haushund (German), feral dog (English), domestic dog (English), kuri (Maori, New Zealand), guri (Maori), kurio (Tuamotuan), uli (Samoan), peto (Marquesan), pero (Maori) Synonym Canis dingo , Blumenbach, 1780 Canis familiaris , Linnaeus, 1758 Similar species Summary Canis lupus (the dog) is possibly the first animal to have been domesticated by humans. It has been selectively bred into a wide range of different forms. They are found throughout the world in many different habitats, both closely associated with humans and away from habitation. They are active hunters and have significant negative impacts on a wide range of native fauna. view this species on IUCN Red List Species Description Domestic dogs are believed to have first diverged from wolves around 100,000 years ago. Around 15,000 years ago dogs started diverging into the multitude of different breeds known today. This divergence was possibly triggered by humans changing from a nomadic, hunting based-lifestyle to a more settled, agriculture-based way of life (Vilà et al. 1997). Domestic dogs have been selectively bred for various behaviours, sensory capabilities and physical attributes, including dogs bred for herding livestock (collies, shepherds, etc.), different kinds of hunting (pointers, hounds, etc.), catching rats (small terriers), guarding (mastiffs, chows), helping fishermen with nets (Newfoundlands, poodles), pulling loads (huskies, St. Bernards), guarding carriages and horsemen (Dalmatians), and as companion dogs. Domestic dogs are therefore extremely variable but the basic morphology is that of the grey wolf, the wild ancestor of all domestic dog breeds. -
Baseline Ecological Inventory for Three Bays National Park, Haiti OCTOBER 2016
Baseline Ecological Inventory for Three Bays National Park, Haiti OCTOBER 2016 Report for the Inter-American Development Bank (IDB) 1 To cite this report: Kramer, P, M Atis, S Schill, SM Williams, E Freid, G Moore, JC Martinez-Sanchez, F Benjamin, LS Cyprien, JR Alexis, R Grizzle, K Ward, K Marks, D Grenda (2016) Baseline Ecological Inventory for Three Bays National Park, Haiti. The Nature Conservancy: Report to the Inter-American Development Bank. Pp.1-180 Editors: Rumya Sundaram and Stacey Williams Cooperating Partners: Campus Roi Henri Christophe de Limonade Contributing Authors: Philip Kramer – Senior Scientist (Maxene Atis, Steve Schill) The Nature Conservancy Stacey Williams – Marine Invertebrates and Fish Institute for Socio-Ecological Research, Inc. Ken Marks – Marine Fish Atlantic and Gulf Rapid Reef Assessment (AGRRA) Dave Grenda – Marine Fish Tampa Bay Aquarium Ethan Freid – Terrestrial Vegetation Leon Levy Native Plant Preserve-Bahamas National Trust Gregg Moore – Mangroves and Wetlands University of New Hampshire Raymond Grizzle – Freshwater Fish and Invertebrates (Krystin Ward) University of New Hampshire Juan Carlos Martinez-Sanchez – Terrestrial Mammals, Birds, Reptiles and Amphibians (Françoise Benjamin, Landy Sabrina Cyprien, Jean Roudy Alexis) Vermont Center for Ecostudies 2 Acknowledgements This project was conducted in northeast Haiti, at Three Bays National Park, specifically in the coastal zones of three communes, Fort Liberté, Caracol, and Limonade, including Lagon aux Boeufs. Some government departments, agencies, local organizations and communities, and individuals contributed to the project through financial, intellectual, and logistical support. On behalf of TNC, we would like to express our sincere thanks to all of them. First, we would like to extend our gratitude to the Government of Haiti through the National Protected Areas Agency (ANAP) of the Ministry of Environment, and particularly Minister Dominique Pierre, Ministre Dieuseul Simon Desras, Mr. -
Tan Choo Hock Thesis Submitted in Fulfi
TOXINOLOGICAL CHARACTERIZATIONS OF THE VENOM OF HUMP-NOSED PIT VIPER (HYPNALE HYPNALE) TAN CHOO HOCK THESIS SUBMITTED IN FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY FACULTY OF MEDICINE UNIVERSITY OF MALAYA KUALA LUMPUR 2013 Abstract Hump-nosed pit viper (Hypnale hypnale) is a medically important snake in Sri Lanka and Western Ghats of India. Envenomation by this snake still lacks effective antivenom clinically. The species is also often misidentified, resulting in inappropriate treatment. The median lethal dose (LD50) of H. hypnale venom varies from 0.9 µg/g intravenously to 13.7 µg/g intramuscularly in mice. The venom shows procoagulant, hemorrhagic, necrotic, and various enzymatic activities including those of proteases, phospholipases A2 and L-amino acid oxidases which have been partially purified. The monovalent Malayan pit viper antivenom and Hemato polyvalent antivenom (HPA) from Thailand effectively cross-neutralized the venom’s lethality in vitro (median effective dose, ED50 = 0.89 and 1.52 mg venom/mL antivenom, respectively) and in vivo in mice, besides the procoagulant, hemorrhagic and necrotic effects. HPA also prevented acute kidney injury in mice following experimental envenomation. Therefore, HPA may be beneficial in the treatment of H. hypnale envenomation. H. hypnale-specific antiserum and IgG, produced from immunization in rabbits, effectively neutralized the venom’s lethality and various toxicities, indicating the feasibility to produce an effective specific antivenom with a common immunization regime. On indirect ELISA, the IgG cross-reacted extensively with Asiatic crotalid venoms, particularly that of Calloselasma rhodostoma (73.6%), suggesting that the two phylogenically related snakes share similar venoms antigenic properties.