New alien and native Ektaphelenchid nematodes (Tylenchomorpha: Ektaphelenchinae) from China with details on host association and geographical distribution

2021 ◽  
Author(s):  
Jianfeng Gu ◽  
Maria Munawar ◽  
Juan Emilio Palomares-Rius ◽  
Pablo Castillo
Keyword(s):  
Geographical Distribution ◽  
Host Association

A new species of Auriculostoma (Trematoda: Allocreadiidae) from the intestine of Brycon guatemalensis (Characiformes: Bryconidae) from the Usumacinta River Basin, Mexico, based on morphology and 28S rDNA sequences, with a key to species of the genus

Zootaxa ◽  
2016 ◽  
Vol 4196 (2) ◽  
pp. 261 ◽  
Author(s):  
DAVID IVÁN HERNÁNDEZ-MENA ◽  
CHRISTINA LYNGGAARD ◽  
BERENIT MENDOZA-GARFIAS ◽  
GERARDO PÉREZ-PONCE DE LEÓN
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Genetic Divergence ◽  
28S Rdna ◽  
The Other ◽  
Sister Taxon ◽  
Host Association ◽  
Rdna Sequences ◽  
28S Rdna Sequences ◽  
A New Species

We describe a new species of Auriculostoma Scholz, Aguirre-Macedo & Choudhury, 2004 based on several sources of information including morphology (light and scanning electron microscopy [SEM]), sequences of two nuclear genes, host association, and geographical distribution. Morphologically, the new species most closely resembles Auriculostoma astyanace Scholz, Aguirre-Macedo & Choudhury, 2004, but differs by having deeply lobated testes and cirrus-sac extending posteriorly to seminal receptacle level. Auriculostoma lobata n. sp. can be readily distinguished from all the other congeners by the combination of the following characters: testes located in tandem, testes deeply lobated, and larger body size. A phylogenetic analysis using 28S rDNA sequences along with those available for other allocreadiid trematodes, revealed that the new species is a sister taxon of A. astyanace, a species described from the banded astyanax, Astyanax fasciatus (Cuvier) in Nicaragua. Auriculostoma totonacapanensis Razo-Mendivil, Mendoza-Garfias, Pérez-Ponce de León & Rubio-Godoy, 2014 from the Mexican tetra, Astyanax mexicanus (De Filippi) in Mexico is the sister taxon of A. astyanace plus the new species. Genetic divergence levels for the 28S rDNA and ITS2 were estimated among the Middle-American species of Auriculostoma infecting characiforms. The validity of the new species is then established by reliable morphological differences, its host association to bryconids (Brycon guatemalensis Regan), restricted geographical distribution (Usumacinta and Lacantun River basins), and genetic divergence levels, albeit relatively low. A morphometric comparison between the new species and the other seven congeneric species was undertaken and, in addition, a taxonomic key to identify the species contained in the genus Auriculostoma, widely distributed across the Americas, is provided. 

Ecology and biogeography in the introduction to “De bestiis marinis” by Georg Wilhelm Steller

2019 ◽  
Vol 46 (1) ◽  
pp. 63-74
Author(s):  
Stefano Mattioli
Keyword(s):  
Body Size ◽  
Phenotypic Plasticity ◽  
Geographical Distribution ◽  
Functional Traits ◽  
Marine Mammals ◽  
Main Part ◽  
Wide Distribution ◽  
Restricted Range ◽  
Direct Influence ◽  
Modern Biology

The rediscovery of the original, unedited Latin manuscript of Georg Wilhelm Steller's “De bestiis marinis” (“On marine mammals”), first published in 1751, calls for a new translation into English. The main part of the treatise contains detailed descriptions of four marine mammals, but the introduction is devoted to more general issues, including innovative speculation on morphology, ecology and biogeography, anticipating arguments and concepts of modern biology. Steller noted early that climate and food have a direct influence on body size, pelage and functional traits of mammals, potentially affecting reversible changes (phenotypic plasticity). Feeding and other behavioural habits have an impact on the geographical distribution of mammals. Species with a broad diet tend to have a wide distribution, whereas animals with a narrow diet more likely have only a restricted range. According to Steller, both sea and land then still concealed countless animals unknown to science.

Una nueva localidad almeriense de Phyllariopsis purpurascens (C. Agardh) Henry et South

2005 ◽  
Vol 30 ◽  
pp. 176
Author(s):  
Diego Moreno ◽  
Julio De la Rosa ◽  
Pedro Sánchez Castillo ◽  
Antonio Flores-Moya
Keyword(s):  
Iberian Peninsula ◽  
Geographical Distribution ◽  
New Record

A new record of Phyllariopsis purpurascens (C. Agardh) Henry et South from AlmeríaPalabras clave. Phyllariopsis, corología, Península Ibérica.Key words. Phyllariopsis, geographical distribution, Iberian Peninsula.

Nuevas citas y aportaciones corológicas para la flora bentónica marina del Atlántico de la Península Ibérica. New records and geographical distribution additions of the benthic marine flora of the Atlantic Iberian Peninsula

2012 ◽  
Vol 37 ◽  
pp. 5-32 ◽  
Author(s):  
Ignacio Bárbara ◽  
Pilar Díaz Tapia ◽  
César Peteiro ◽  
Estibaliz Berecibar ◽  
Viviana Peña ◽  
...  
Keyword(s):  
Iberian Peninsula ◽  
Geographical Distribution ◽  
New Records ◽  
Distribution Data ◽  
New Findings ◽  
Floristic Studies ◽  
Marine Flora ◽  
Derbesia Marina ◽  
Halicystis Ovalis ◽  
Península Ibérica

Español.  Se dan a conocer nuevas localizaciones y datos corológicos para 98 especies (61 Rhodophyta, 22 Ochrophyta, 15 Chlorophyta) de algas bentónicas marinas recolectadas en el intermareal y submareal de más de 80 localidades de las costas atlánticas y cantábricas de la Península Ibérica. Polysiphonia devoniensis, P. fibrata y Zonaria tournefortii son novedad para Portugal y 5 especies (Bonnemaisonia hamifera, Calosiphonia vermicularis, P. devoniensis, Hincksia intermedia y Derbesia marina stadium Halicystis ovalis) son nuevas citas para Galicia. Paralelamente, se aportan 101 primeras citas provinciales (2 Guipúzcoa, 1 Vizcaya, 8 Cantabria, 5 Asturias, 7 Lugo, 1 A Coruña, 8 Pontevedra, 1 Beira litoral, 15 Estremadura, 20 Alentejo, 25 Algarve y 8 Cádiz) y, además, se dan a conocer 108 segundas citas provinciales. Aunque la flora bentónica marina del Atlántico Peninsular ha sido objeto de numerosos estudios, estos nuevos hallazgos corológicos ponen en evidencia que todavía son necesarios más estudios florísticos en estas costas.English.  In this work, we provide new records and geographical distribution data for 98 seaweeds (61 Rhodophyta, 22 Ochrophyta, 15 Chlorophyta) inhabiting more than 80 sites (intertidal and subtidal) of the Atlantic Iberian Peninsula. Polysiphonia devoniensis, P. fibrata y Zonaria tournefortii are new records for Portugal and 5 species (Bonnemaisonia hamifera, Calosiphonia vermicularis, P. devoniensis, Hincksia intermedia and Derbesia marina stadium Halicystis ovalis) are new records for Galicia. Moreover, 101 new records are reported for the first time in the studied provinces (2 Guipúzcoa, 1 Vizcaya, 8 Cantabria, 5 Asturias, 7 Lugo, 1 A Coruña, 8 Pontevedra, 1 Beira litoral, 15 Estremadura, 20 Alentejo, 25 Algarve y 8 Cádiz) and 108 for the second time. Although the Atlantic marine algae of the Iberian Peninsula are well studied, these new findings show that further floristic studies are necessary to complete our knowledge of the natural heritage of this region.

Distribuição geográfica de Aphanodictyon papillatum Huneycutt ex Dick (Saprolegniales) no Brasil. Geographical distribution of the Aphanodictyon papillatum Huneycutt ex Dick (Saprolegniales) in the Brazil

2010 ◽  
Vol 35 ◽  
pp. 171-176 ◽  
Author(s):  
José de Ribamar De Sousa Rocha ◽  
Edílson Páscoa Rodrigues ◽  
Hamanda Soares Viana Pereira da Silva ◽  
Lidiane Martins Alves de Sousa ◽  
Brenda Skally Viera Barros
Keyword(s):  
Key Words ◽  
Geographical Distribution ◽  
Zoosporic Fungi

Geographical distribution of the Aphanodictyon papillatum Huneycutt ex Dick (Saprolegniales) in the Brazil. Palavras-chave. Aphanodictyon papillatum, Brasil, fungo zoospórico. Key words. Aphanodictyon papillatum, Brazil, zoosporic fungi.

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