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[PMID]:28609945
[Au] Autor:Neiss UG; Marmels J
[Ad] Endereço:Instituto de Criminalística, Departamento de Polícia Técnico-Científica, Manaus, AM, Brazil.. ulisses.neiss@gmail.com.
[Ti] Título:Gynacantha dryadula sp. nov. from the Guiana Shield (Odonata, Anisoptera: Aeshnidae).
[So] Source:Zootaxa;4254(5):563-574, 2017 Apr 20.
[Is] ISSN:1175-5334
[Cp] País de publicação:New Zealand
[La] Idioma:eng
[Ab] Resumo:The new species is described and illustrated on the basis of two reared, subteneral males from Brazil, their larval exuviae, a mature male from French Guiana, a mature female from Venezuela, and a mature female from Surinam. One of the Brazilian males is the holotype (BRAZIL, Amazonas State, Manaus, Reserva Florestal Ducke, BR 174-km 26, trail to Acará creek, 02º55'47"S, 59º58'22"W, 0.7 m elevation, deposited in INPA). The new species (total length 50-54 mm) differs from other small species of same genus by color pattern of thorax, middle and hind tibiae dark with external (dorsal) yellow streak, male cercus with truncated tip lacking apical spine, and male epiproct reaching or slightly surpassing midlength of cercus. The larva, besides of its small size (28-31 mm), has an epiproct with well-developed and slightly diverging apical spines and an unusually long paraproct.
[Mh] Termos MeSH primário: Odonatos
[Mh] Termos MeSH secundário: Estruturas Animais
Animais
Tamanho Corporal
Brasil
Ecossistema
Feminino
Guiana Francesa
Guiana
Masculino
Tamanho do Órgão
Suriname
Venezuela
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170809
[Lr] Data última revisão:
170809
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170615
[St] Status:MEDLINE
[do] DOI:10.11646/zootaxa.4254.5.5


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[PMID]:28381227
[Au] Autor:Brown CR; Hambleton IR; Hercules SM; Alvarado M; Unwin N; Murphy MM; Harris EN; Wilks R; MacLeish M; Sullivan L; Sobers-Grannum N; U.S. Caribbean Alliance for Health Disparities Research Group (USCAHDR)
[Ad] Endereço:Chronic Disease Research Centre, Bridgetown, Barbados. catherine.brown@cavehill.uwi.edu.
[Ti] Título:Social determinants of breast cancer in the Caribbean: a systematic review.
[So] Source:Int J Equity Health;16(1):60, 2017 Apr 05.
[Is] ISSN:1475-9276
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Breast cancer is the leading cause of cancer deaths among women in the Caribbean and accounts for >1 million disability adjusted life years. Little is known about the social inequalities of this disease in the Caribbean. In support of the Rio Political Declaration on addressing health inequities, this article presents a systematic review of evidence on the distribution, by social determinants, of breast cancer risk factors, frequency, and adverse outcomes in Caribbean women. METHODS: MEDLINE, EMBASE, SciELO, CINAHL, CUMED, LILACS, and IBECS were searched for observational studies reporting associations between social determinants and breast cancer risk factors, frequency, or outcomes. Based on the PROGRESS-plus checklist, we considered 8 social determinant groups for 14 breast cancer endpoints, which totalled to 189 possible ways ('relationship groups') to explore the role of social determinants on breast cancer. Studies with >50 participants conducted in Caribbean territories between 2004 and 2014 were eligible for inclusion. The review was conducted according to STROBE and PRISMA guidelines and results were planned as a narrative synthesis, with meta-analysis if possible. RESULTS: Thirty-four articles were included from 5,190 screened citations. From these included studies, 75 inequality relationships were reported examining 30 distinct relationship groups, leaving 84% of relationship groups unexplored. Most inequality relationships were reported for risk factors, particularly alcohol and overweight/obesity which generally showed a positive relationship with indicators of lower socioeconomic position. Evidence for breast cancer frequency and outcomes was scarce. Unmarried women tended to have a higher likelihood of being diagnosed with breast cancer when compared to married women. While no association was observed between breast cancer frequency and ethnicity, mortality from breast cancer was shown to be slightly higher among Asian-Indian compared to African-descent populations in Trinidad (OR 1.2, 95% CI 1.1-1.4) and Guyana (OR 1.3, 95% CI 1.0-1.6). CONCLUSION: Study quantity, quality, and variability in outcomes and reporting limited the synthesis of evidence on the role of social determinants on breast cancer in the Caribbean. This report represents important current evidence on the region, and can guide future research priorities for better describing and understanding of Caribbean breast cancer inequalities.
[Mh] Termos MeSH primário: Neoplasias da Mama
Grupos de Populações Continentais
Grupos Étnicos
Estado Civil
Classe Social
[Mh] Termos MeSH secundário: Neoplasias da Mama/etnologia
Neoplasias da Mama/etiologia
Neoplasias da Mama/mortalidade
Região do Caribe
Guiana
Seres Humanos
Fatores de Risco
Determinantes Sociais da Saúde
Fatores Socioeconômicos
Trinidad e Tobago
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171012
[Lr] Data última revisão:
171012
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170407
[St] Status:MEDLINE
[do] DOI:10.1186/s12939-017-0540-z


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[PMID]:28264397
[Au] Autor:Short AE; García M; Girón JC
[Ad] Endereço:Department of Ecology & Evolutionary Biology & Division of Entomology, Biodiversity Institute, University of Kansas, Lawrence, KS 66045, USA.. aezshort@ku.edu.
[Ti] Título:Revision of the Neotropical water scavenger beetle genus Globulosis García, 2001 (Coleoptera: Hydrophilidae: Acidocerinae).
[So] Source:Zootaxa;4232(2):zootaxa.4232.2.10, 2017 Feb 15.
[Is] ISSN:1175-5334
[Cp] País de publicação:New Zealand
[La] Idioma:eng
[Ab] Resumo:The Neotropical water scavenger beetle genus Globulosis García, 2001 is revised. Originally described from a single male specimen from southeastern Venezuela, the genus has since been found in localities across the Guiana Shield region and beyond, including Colombia, Suriname, Guyana, and Brazil. The genus is redescribed. Morphological characters and genetic data from the mitochondrial gene COI from ten populations across its range provide support for two distinct species, corresponding loosely to geography. The type species, G. hemisphericus García, is redescribed and newly recorded from Guyana, Suriname, and Brazil (Amazonas, Para). One new species is described, Globulosis flavus sp. n. from southwestern Venezuela (Amazonas, Bolivar). The genus is associated with lotic habitats, and typically found along the margins of small to medium sized streams. High-resolution habitus and aedeagal images and distribution maps for all species are provided.
[Mh] Termos MeSH primário: Coleópteros
[Mh] Termos MeSH secundário: Animais
Brasil
Guiana
Masculino
Suriname
Venezuela
Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
059QF0KO0R (Water)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170308
[St] Status:MEDLINE
[do] DOI:10.11646/zootaxa.4232.2.10


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[PMID]:28212195
[Au] Autor:Anthony M; Groh C; Gash J
[Ad] Endereço:Author Affiliations: McAuley School of Nursing, University of Detroit Mercy.
[Ti] Título:Suicide in Guyana: Nurses' Perspectives.
[So] Source:J Forensic Nurs;13(1):14-19, 2017 Jan/Mar.
[Is] ISSN:1939-3938
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Guyana, an English-speaking country on the north coast of South America, has the highest suicide rate in the world. Nurses are an integral part of the healthcare team working with patients experiencing psychological distress and are uniquely qualified to add to the discourse on factors contributing to the high suicide rate in Guyana. The purpose of this study was to explore the attitudes and experiences of nurses and nurse assistants in Guyana related to suicide. Nine registered nurses and nurse assistants who worked at a private hospital in Georgetown, Guyana, were recruited to participate in a focus group. The focus group lasted approximately 70 minutes and was recorded. The audio recordings were later transcribed word for word. Four themes emerged from the data: family issues as they relate to the high suicide rate, suicide attempts as a cry for help, lack of support, and coping mechanisms used by nurses when caring for victims of attempted suicide. Nurses are uniquely positioned to intervene with families in crisis, whether it be suicide, suicide attempts, or the underlying factors of family dysfunction, child maltreatment, poverty, or alcoholism. Establishing forensic nursing as a specialty in Guyana would validate this important role through education and certification of nurses.
[Mh] Termos MeSH primário: Atitude do Pessoal de Saúde
Recursos Humanos de Enfermagem no Hospital/psicologia
Suicídio/etnologia
[Mh] Termos MeSH secundário: Adaptação Psicológica
Atenção
Conflito Familiar
Grupos Focais
Guiana
Seres Humanos
Motivação
Estigma Social
Apoio Social
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170314
[Lr] Data última revisão:
170314
[Sb] Subgrupo de revista:IM; N
[Da] Data de entrada para processamento:170218
[St] Status:MEDLINE
[do] DOI:10.1097/JFN.0000000000000138


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[PMID]:28187640
[Au] Autor:Lima FC
[Ad] Endereço:Museu de Zoologia da Universidade Estadual de Campinas "Adão José Cardoso", Caixa Postal 6109, 13083-863, Campinas, São Paulo, Brazil.. fctlima@gmail.com.
[Ti] Título:A revision of the cis-andean species of the genus Brycon Müller & Troschel (Characiformes: Characidae).
[So] Source:Zootaxa;4222(1):zootaxa.4222.1.1, 2017 Jan 22.
[Is] ISSN:1175-5334
[Cp] País de publicação:New Zealand
[La] Idioma:eng
[Ab] Resumo:A revision of the cis-andean species of Brycon, with the exception of the Brycon pesu species-complex, is presented. Twenty-one Brycon species (including B. pesu) are recognized from cis-andean river systems: Brycon stolzmanni Steindachner, from the upper Río Marañon basin, Peru; Brycon coxeyi Fowler, from the Río Marañon basin, Ecuador and Peru; Brycon polylepis Moscó Morales, from the Lago de Maracaibo, Río Orinoco, upper rio Amazonas, and rio Tocantins basins, Venezuela, Colombia, Peru, and Brazil; Brycon coquenani Steindachner, from the upper Río Caroni, Río Orinoco basin, Venezuela; Brycon insignis Steindachner, from the rio Paraíba do Sul and small adjacent coastal river basins of eastern Brazil; Brycon vermelha Lima & Castro, endemic from the rio Mucuri basin, eastern Brazil; Brycon howesi new species, endemic from the rio Jequitinhonha basin, Brazil; Brycon dulcis new species, endemic from the rio Doce basin, eastern Brazil; Brycon ferox Steindachner, from several small coastal river systems, including the rio Mucuri basin in eastern Brazil; Brycon vonoi new species, from the rio Pardo basin and apparently also from a adjacent river system, the rio Una, in eastern Brazil; Brycon opalinus (Cuvier), from the headwaters of the rio Paraíba do Sul and rio Doce basins, eastern Brazil; Brycon nattereri Günther, from the headwaters of the upper rio Paraná, rio São Francisco, and upper rio Tocantins basins, Brazil; Brycon orthotaenia Günther, endemic from the rio São Francisco basin, Brazil; Brycon orbignyanus (Valenciennes), from the rio Paraná and rio Uruguai basins, Brazil, Paraguay, Argentina, and Uruguay; Brycon hilarii (Valenciennes), from the rio Paraguai, middle rio Paraná, and upper rio Amazonas basins, Brazil, Paraguay, Argentina, Peru, and Ecuador; Brycon whitei Myers & Weitzman, from the Río Orinoco basin in Colombia and Venezuela; Brycon amazonicus (Agassiz), from the Rio Amazonas and Río Orinoco basins, Brazil, Peru, Colombia, Bolivia, Venezuela, and Guyana; Brycon gouldingi Lima, endemic from the rio Tocantins basin, Brazil; Brycon melanopterus (Cope), from the western and central rio Amazonas basin, Brazil, Peru, Ecuador, and Colombia; and Brycon falcatus Müller & Troschel, widespread in the the rio Amazonas and Río Orinoco basins, and several guyanese river systems, in Brazil, Venezuela, Colombia, Peru, Bolivia, Guyana, Suriname, and French Guiana. All species are redescribed and illustrated, and a key to the species is provided. Comments on the diagnosis of the genus Brycon, the biogeography of the cis-andean species, and their current conservation status, are presented.
[Mh] Termos MeSH primário: Characidae/classificação
[Mh] Termos MeSH secundário: Animais
Argentina
Bolívia
Brasil
Caraciformes
Equador
Guiana Francesa
Guiana
Paraguai
Peru
Suriname
Uruguai
Venezuela
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170731
[Lr] Data última revisão:
170731
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170212
[St] Status:MEDLINE
[do] DOI:10.11646/zootaxa.4222.1.1


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[PMID]:28187559
[Au] Autor:Candiani DF; Bonaldo AB
[Ad] Endereço:Independent Researcher. Avenida do Contorno, n° 2250, apt. 208, CEP 30110-012, Belo Horizonte, Minas Gerais, Brazil.. dfcandiani@gmail.com.
[Ti] Título:The superficial ant: a revision of the Neotropical ant-mimicking spider genus Myrmecium Latreille, 1824 (Araneae, Corinnidae, Castianeirinae).
[So] Source:Zootaxa;4230(1):zootaxa.4230.1.1, 2017 Feb 07.
[Is] ISSN:1175-5334
[Cp] País de publicação:New Zealand
[La] Idioma:eng
[Ab] Resumo:The ant-mimiking spider genus Myrmecium Latreille, 1824 is revised, including 38 species, all herein diagnosed, described and illustrated. The following synonymies are proposed: Myrmecium aurantiacum Mello-Leitão, 1941 syn. nov. with M. camponotoides Mello-Leitão, 1932; M. gounellei Simon, 1896 syn. nov. and M. obscurum Keyserling, 1891 syn. nov. with M. latreillei Lucas, 1857; M. itatiaiae Mello-Leitão, 1932 syn. nov. and M. vertebratum Walckenaer, 1837 syn. nov. with M. rufum Latreille, 1824. Myrmecium bonaerense Holmberg, 1881 is considered as species inquirenda. Males of M. dacetoniforme, Mello-Leitão, 1932, M. fuscum Dahl, 1907, M. latreillei Lucas, 1857, M. trifasciatum Caporiacco, 1947 and adults of M. viehmeyeri Dahl, 1907 and M. reticulatum Dahl, 1907 are described for the first time. Myrmecium bifasciatum Taczanowski, 1874, M. monacanthum Simon, 1897 and M. rufum Latreille, 1824 are also redescribed and illustrated. The following 28 new species are described, diagnosed and illustrated: M. amphora sp. nov. (female from Chichiriviche, Venezuela); M. bolivari sp. nov. (male and female from Caracas and Sucre, Venezuela and Colombia); M. carajas sp. nov. (male from Pará, Brazil); M. carvalhoi sp. nov. (female from Piauí, Tocantins and Goiás, Brazil); M. catuxy sp. nov. (female from Amazonas, Brazil and Puerto Lopez, Colombia); M. chikish sp. nov. (female from Huánuco, Peru); M. cizauskasi sp. nov. (male and female from Amazonas, Brazil); M. oliveirai sp. nov. (male from Amazonas, Brazil); M. deladanta sp. nov. (male from Sucúmbios, Ecuador); M. diasi sp. nov. (male and female from Amazonas, Brazil); M. erici sp. nov. (female from British Guiana); M. ferro sp. nov. (female from Paraiba, Brazil); M. indicatti sp. nov. (male and female from Pará, Brazil); M. nogueirai sp. nov. (female from Amazonas, Brazil and Madre de Dios, Peru); M. lomanhungae sp. nov. (male and female from Amazonas and Pará, Brazil); M. machetero sp. nov. (female from Beni, Bolivia); M. malleum sp. nov. (male and female from Aragua and Lara, Venezuela and Caldas, Colombia); M. oompaloompa sp. nov. (male and female from Bahia, Brazil and Kurupukari, Guyana); M. otti sp. nov. (male and female from Pará, Amazonas and Mato Grosso, Brazil and Madre de Dios in Peru); M. pakpaka sp. nov. (male and female from Huánuco, Peru); M. raveni sp. nov. (male and female from Amazonas and Pará, Brazil); M. ricettii sp. nov. (male and female from the states of Pará, Alagoas, Sergipe, Bahia, Goiás and Mato Grosso, Brazil and Puerto Lopez, Colombia); M. luepa sp. nov. (male from Bolívar, Venezuela); M. souzai sp. nov. (male from Amazonas, Brazil); M. tanguro sp. nov. (male and female from Rondonia, Mato Grosso, Brazil); M. tikuna sp. nov. (male from Amazonas, Brazil); M. urucu sp. nov. (female from Amazonas, Brazil); M. yamamotoi sp. nov. (male and female from Amapá, Amazonas and Pará, Brazil and Marowijne, Suriname).
[Mh] Termos MeSH primário: Aranhas
[Mh] Termos MeSH secundário: Animais
Formigas
Bolívia
Brasil
Equador
Feminino
Guiana
Masculino
Peru
Suriname
Venezuela
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170809
[Lr] Data última revisão:
170809
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170212
[St] Status:MEDLINE
[do] DOI:10.11646/zootaxa.4230.1.1


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[PMID]:28183117
[Au] Autor:Nascimento EA; Bocakova M
[Ad] Endereço:Departamento de Engenharia Ambiental, Universidade Estadual do Centro-Oeste, PR 153, Km 7, Riozinho, Irati, PR, Brazil - CEP 84500-000.. elynton@yahoo.com.
[Ti] Título:Neolinoptes gen. n., a replacement name for the net-winged beetle genus Linoptes Gorham, 1884 and a new species of Lycomorphon from Guyana (Coleoptera: Lycidae).
[So] Source:Zootaxa;4216(4):zootaxa.4216.4.7, 2017 Jan 09.
[Is] ISSN:1175-5334
[Cp] País de publicação:New Zealand
[La] Idioma:eng
[Ab] Resumo:Neolinoptes gen. n. is erected to replace Linoptes Gorham, 1884, preoccupied by Linoptes Menge, 1854 (Arachnida: Araneae). Consequently, Neolinoptes imbrex (Gorham, 1884) comb. n., N. amazonicus (Pic, 1923) comb. n., N. atronotatus (Pic, 1922) comb. n., N. atripennis (Pic, 1932) comb. n. are proposed. Calocladon rubidum Gorham, 1884 is transferred to Neolinoptes. Lycomorphon iwokrama sp. n. is proposed as new to science and the genus is recorded from Guyana for the first time. Additionally, Falsocaenia irregularis var. germaini Pic, 1931 is elevated to species rank and past confusion on F. irregularis discussed. New data on geographical distribution of Falsocaenia paranana (Pic, 1922) are presented.
[Mh] Termos MeSH primário: Coleópteros/classificação
[Mh] Termos MeSH secundário: Distribuição Animal
Estruturas Animais/anatomia & histologia
Estruturas Animais/crescimento & desenvolvimento
Animais
Tamanho Corporal
Coleópteros/anatomia & histologia
Coleópteros/crescimento & desenvolvimento
Feminino
Guiana
Masculino
Tamanho do Órgão
Terminologia como Assunto
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1705
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170210
[St] Status:MEDLINE
[do] DOI:10.11646/zootaxa.4216.4.7


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[PMID]:28183098
[Au] Autor:VAN Soest RW
[Ad] Endereço:Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, The Netherlands.. rob.vansoest@naturalis.nl.
[Ti] Título:Sponges of the Guyana Shelf.
[So] Source:Zootaxa;4217(1):zootaxa.4217.1.1, 2017 Jan 12.
[Is] ISSN:1175-5334
[Cp] País de publicação:New Zealand
[La] Idioma:eng
[Ab] Resumo:Sponges collected on the Guyana Shelf, predominantly in Suriname offshore waters, by Dutch HMS 'Snellius' O.C.P.S. 1966, HMS 'Luymes' O.C.P.S. II 1969, and HMS 'Luymes' Guyana Shelf 1970 expeditions are described in this study. Sponges were obtained by trawling, dredging or grabbing on sandy, muddy, shelly, and fossil reef bottoms at 88 stations between 19 and 681 m depth. A total of 351 samples were identified to species level, each consisting of one or more specimens of a given species from each individual station (together comprising 547 individuals and fragments). The collection yielded 119 species together belonging to all sponge classes, but in large majority are Demospongiae. All species are identified to species level, occasionally tentatively, and all are described and illustrated. A new subgenus is proposed, Tedania (Stylotedania) subgen. nov. and a previously synonymized genus, Tylosigma Topsent, 1894 is revived. Thirtysix species were found to be new to science, excluding the first Central West Atlantic record of the genus Halicnemia, not named at the species level because of lack of sufficient material. The new species erected are, in alphabetical order: Amphoriscus ancora sp. nov., Biemna rhabdotylostylota sp. nov., Callyspongia (Callyspongia) scutica sp. nov., Chelonaplysilla americana sp. nov., Cladocroce guyanensis sp. nov., Clathria (Axosuberites) riosae sp. nov., Clathria (Clathria) gomezae sp. nov., Clathria (Microciona) snelliusae sp. nov., Clathria (Thalysias) complanata sp. nov., Clathria (Thalysias) zeai sp. nov., Coelosphaera (Coelosphaera) lissodendoryxoides sp. nov., Craniella crustocorticata sp. nov., Diplastrella spirastrelloides sp. nov., Epipolasis tubulata sp. nov., Erylus rhabdocoronatus sp. nov., Erylus surinamensis sp. nov., Geodia pocillum sp. nov., Geodia sulcata sp. nov., Hemiasterella camelus sp. nov., Hymedesmia (Stylopus) alcoladoi sp. nov., Hymenancora cristoboi sp. nov., Penares sineastra sp. nov., Hymerhabdia kobluki sp. nov., Leucosolenia salpinx sp. nov., Petrosia (Strongylophora) devoogdae sp. nov., Placospongia ruetzleri sp. nov., Pyloderma tropicale sp. nov., Raspailia (Parasyringella) thamnopilosa sp. nov., Raspailia (Raspailia) johnhooperi sp. nov., Sphaerotylus bouryesnaultae sp. nov., Spirastrella erylicola sp. nov., Stelletta vervoorti sp. nov., Suberites crispolobatus sp. nov., Tedania (Stylotedania) folium subgen. nov. sp. nov., Timea tylasterina sp. nov., and Tylosigma ostreicola sp. nov. Two new combinations are proposed: Amphimedon nanaspiculata (Hartman, 1955) comb. nov. and Oceanapia ascidia (Schmidt, 1870) comb. nov. In addition, for two preoccupied combinations, new names, Coelosphaera (Coelosphaera) barbadensis nom. nov. and Hymedesmia (Hymedesmia) rowi nom. nov., are erected. The spatial distribution of the collected specimens over the Guyana Shelf was traced and the results were compared with existing information on bottom conditions. There was a convincing correlation between the location of fossil reefs and other hard substrates such as shell ridges with peaks in the occurrence of species diversity and specimen numbers. Stations made on sand and mud bottoms away from these zones of hard substrates were generally poor in species, but some were found to be rich in individuals of specialized soft bottom dwellers such as Tetilla pentatriaena, Tribrachium schmidtii, Fangophilina submersa, and Oceanapia species. The species composition of the Guyana Shelf was compared with that of neighbouring regions of the Caribbean and from North and East Brazil (Díaz in Miloslavich et al. 2010; Muricy et al. 2011). About 35% of the species encountered are widespread in the Central West Atlantic, occurring both to the north and to the south. Indications that the Guyana Shelf sponge fauna is clearly transitional are southernmost occurrences for Caribbean species (about 30%), and northernmost occurrences of Brazilian species (13%), with a high proportion (25%) of new species, which may be expected to have distributions extending to the Caribbean, to Brazil or both regions.
[Mh] Termos MeSH primário: Poríferos/classificação
[Mh] Termos MeSH secundário: Distribuição Animal
Estruturas Animais/anatomia & histologia
Estruturas Animais/crescimento & desenvolvimento
Animais
Tamanho Corporal
Brasil
Fósseis/anatomia & histologia
Guiana
Tamanho do Órgão
Poríferos/anatomia & histologia
Poríferos/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170505
[Lr] Data última revisão:
170505
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170210
[St] Status:MEDLINE
[do] DOI:10.11646/zootaxa.4217.1.1


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[PMID]:28122504
[Au] Autor:Koch RA; Wilson AW; Séné O; Henkel TW; Aime MC
[Ad] Endereço:Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN, 47907, USA.
[Ti] Título:Resolved phylogeny and biogeography of the root pathogen Armillaria and its gasteroid relative, Guyanagaster.
[So] Source:BMC Evol Biol;17(1):33, 2017 Jan 25.
[Is] ISSN:1471-2148
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Armillaria is a globally distributed mushroom-forming genus composed primarily of plant pathogens. Species in this genus are prolific producers of rhizomorphs, or vegetative structures, which, when found, are often associated with infection. Because of their importance as plant pathogens, understanding the evolutionary origins of this genus and how it gained a worldwide distribution is of interest. The first gasteroid fungus with close affinities to Armillaria-Guyanagaster necrorhizus-was described from the Neotropical rainforests of Guyana. In this study, we conducted phylogenetic analyses to fully resolve the relationship of G. necrorhizus with Armillaria. Data sets containing Guyanagaster from two collecting localities, along with a global sampling of 21 Armillaria species-including newly collected specimens from Guyana and Africa-at six loci (28S, EF1α, RPB2, TUB, actin-1 and gpd) were used. Three loci-28S, EF1α and RPB2-were analyzed in a partitioned nucleotide data set to infer divergence dates and ancestral range estimations for well-supported, monophyletic lineages. RESULTS: The six-locus phylogenetic analysis resolves Guyanagaster as the earliest diverging lineage in the armillarioid clade. The next lineage to diverge is that composed of species in Armillaria subgenus Desarmillaria. This subgenus is elevated to genus level to accommodate the exannulate mushroom-forming armillarioid species. The final lineage to diverge is that composed of annulate mushroom-forming armillarioid species, in what is now Armillaria sensu stricto. The molecular clock analysis and ancestral range estimation suggest the most recent common ancestor to the armillarioid lineage arose 51 million years ago in Eurasia. A new species, Guyanagaster lucianii sp. nov. from Guyana, is described. CONCLUSIONS: The armillarioid lineage evolved in Eurasia during the height of tropical rainforest expansion about 51 million years ago, a time marked by a warm and wet global climate. Species of Guyanagaster and Desarmillaria represent extant taxa of these early diverging lineages. Desarmillaria represents an armillarioid lineage that was likely much more widespread in the past. Guyanagaster likely evolved from a gilled mushroom ancestor and could represent a highly specialized endemic in the Guiana Shield. Armillaria species represent those that evolved after the shift in climate from warm and tropical to cool and arid during the late Eocene. No species in either Desarmillaria or Guyanagaster are known to produce melanized rhizomorphs in nature, whereas almost all Armillaria species are known to produce them. The production of rhizomorphs is an adaptation to harsh environments, and could be a driver of diversification in Armillaria by conferring a competitive advantage to the species that produce them.
[Mh] Termos MeSH primário: Armillaria/classificação
Basidiomycota/classificação
Raízes de Plantas/microbiologia
[Mh] Termos MeSH secundário: África
Clima
Evolução Molecular
Guiana
Filogenia
Filogeografia
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170808
[Lr] Data última revisão:
170808
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170127
[St] Status:MEDLINE
[do] DOI:10.1186/s12862-017-0877-3


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[PMID]:27890090
[Au] Autor:Sánchez-García M; Henkel TW; Aime MC; Smith ME; Matheny PB
[Ad] Endereço:Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, USA. Electronic address: MSanchezGarcia@clarku.edu.
[Ti] Título:Guyanagarika, a new ectomycorrhizal genus of Agaricales from the Neotropics.
[So] Source:Fungal Biol;120(12):1540-1553, 2016 Dec.
[Is] ISSN:1878-6146
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:A new genus and three new species of Agaricales are described from the Pakaraima Mountains of Guyana in the central Guiana Shield. All three of these new species fruit on the ground in association with species of the ectomycorrhizal (ECM) tree genus Dicymbe (Fabaceae subfam. Caesalpinioideae) and one species has been shown to form ectomycorrhizas. Multi-locus molecular phylogenetic analyses place Guyanagarika gen. nov. within the Catathelasma clade, a lineage in the suborder Tricholomatineae of the Agaricales. We formally recognize this 'Catathelasma clade' as an expanded family Catathelasmataceae that includes the genera Callistosporium, Catathelasma, Guyanagarika, Macrocybe, Pleurocollybia, and Pseudolaccaria. Within the Catathelasmataceae, Catathelasma and Guyanagarika represent independent origins of the ectomycorrhizal habit. Guyanagarika is the first documented case of an ECM Agaricales genus known only from the Neotropics.
[Mh] Termos MeSH primário: Agaricales/classificação
Agaricales/isolamento & purificação
Fabaceae/microbiologia
Micorrizas/classificação
Micorrizas/isolamento & purificação
[Mh] Termos MeSH secundário: Guiana
Tipagem de Sequências Multilocus
Filogenia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170913
[Lr] Data última revisão:
170913
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161129
[St] Status:MEDLINE



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