scholarly journals Phenetic and Genetic Variability of Continental and Island Populations of the Freshwater Copepod Mastigodiaptomus ha Cervantes, 2020 (Copepoda): A Case of Dispersal?

Diversity ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 279
Author(s):  
Adrián Cervantes-Martínez ◽  
Martha Angélica Gutiérrez-Aguirre ◽  
Eduardo Suárez-Morales ◽  
Sarahi Jaime
Keyword(s):  
Genetic Divergence ◽  
First Record ◽  
Freshwater Ecosystem ◽  
Habitat Conditions ◽  
Freshwater Zooplankton ◽  
Island Populations ◽  
History Of ◽  
Genetic Sequences ◽  
Zooplankton Communities ◽  
Two Populations

The diversity of freshwater zooplankton is still little known in Mexico, particularly in reference to insular zooplankton communities. Diaptomid copepods (Crustacea: Copepoda: Calanoida) are a widespread group worldwide, and Mexico harbours high diaptomid diversity. Based on a recent sampling of freshwater zooplankton on a Caribbean Island of Mexico, we present the first record of a diaptomid copepod from an island freshwater ecosystem. It shows the well-known tendency of Neotropical diaptomids to have restricted distributional patterns and high levels of endemism. The species recorded, Mastigodiaptomus ha (Cervantes-Martínez, 2020) appears to have a restricted distribution in the Yucatan Peninsula (YP), and the island as well. In order to explore potential differences between the island and continental populations of this species, its phenetic and genetic diversity was analysed by performing morphological comparisons and also by exploring differences of the habitat conditions and genetic sequences (CO1 gene). Our analysis revealed a low (average = 0.33%) genetic divergence between both populations; likewise, both the morphology and habitat conditions closely resemble each other in these two populations. The low genetic divergence between the continental and island populations of M. ha suggests an early common origin of the species in the geological history of the YP.

The first record of Adelosgryllus Mesa & Zefa, 2004 (Orthoptera: Grylloidea: Phalangopsidae) from caves, with the description of a new species from Brazil

Zootaxa ◽  
2021 ◽  
Vol 4933 (1) ◽  
pp. 136-150
Author(s):  
RAYANNE LAYS SANT’ANA MERLO ◽  
RODRIGO ANTÔNIO CASTRO-SOUZA ◽  
VITOR GABRIEL PEREIRA JUNTA ◽  
RODRIGO LOPES FERREIRA
Keyword(s):  
New Species ◽  
Natural History ◽  
Intraspecific Variation ◽  
First Record ◽  
History Of ◽  
The Right ◽  
Two Populations ◽  
A New Species

The first species for the genus Adelosgryllus Mesa & Zefa, 2004 recorded in caves is herein described. We used the morphology of the phallic complex as the main criteria to differentiate this species from the congeneric ones. In addition, we discussed the natural history of the new species, some aspects of its association to the cave habitats, and the intraspecific variation of the right tegmen observed in two populations of this new species. 

II.—The Kells Crosier

Archaeologia ◽  
1955 ◽  
Vol 96 ◽  
pp. 59-113 ◽  
Author(s):  
Máire Mac Dermott
Keyword(s):  
British Museum ◽  
First Record ◽  
Museum Collection ◽  
Modern History ◽  
Royal Irish Academy ◽  
Early Christian ◽  
History Of

In the year 1850, Cardinal Wiseman writing to Dr. Russell of Maynooth mentions an ancient crosier which had come into his possession. This is the first record of the shrine known variously as the Kells crosier or the crosier of Cúduilig and Maelfinnén, which now forms one of the most beautiful and most treasured exhibits in the British Museum collection of Irish Early Christian antiquities. In his letter the cardinal describes how he had acquired this ‘most valuable relic’ at the auction of the belongings of a solicitor in London, the crosier evidently having been left in the chambers by a previous occupant, and asks for help in deciphering the inscription. Nothing whatever is known of the earlier history of the crosier or of when it was removed from Ireland. At the request of Dr. Russell, Petrie exhibited the crosier at a meeting of the Royal Irish Academy on 14th February 1851, and read a paper on it. The shrine was at the time deposited on loan in the Academy museum. The next step in the modern history of the Kells crosier was its acquisition by the British Museum in 1859.

scholarly journals The diaries of John Byrom, M. A., F. R. S., and their relation to the pre-history of the Royal Society Club

1965 ◽  
Vol 20 (2) ◽  
pp. 162-183 ◽  
Keyword(s):  
Royal Society ◽  
First Record ◽  
The Other ◽  
History Of

The first record for Thursday, 27 October 1743,is an isolated entry written on a sheet of paper pasted on the inside cover of Minute Book No. 1; it lists the names of eight Members who each paid six shillings for the month to Mr Colebrook, the Treasurer, for four dinners to be ordered at i/6d.per head. The Treasurer had to order each Thursday ‘a dinner for six and pay nine shillings certain’ to the innkeeper of the Mitre Tavern in Fleet Street; ‘as many more as come to pay one-and-sixpence per head each’ but if more than six come, ‘the deficiency to be paid out of this Fund of -£2.8.0.’, the amount he had received that day. O f these eight men six were Fellows of the Royal Society and the other two became Fellows later.

Effects of increased temperature, drought, and an insecticide on freshwater zooplankton communities

2018 ◽  
Vol 38 (2) ◽  
pp. 396-411 ◽  
Author(s):  
Alba Arenas‐Sánchez ◽  
Isabel López‐Heras ◽  
Leonor Nozal ◽  
Marco Vighi ◽  
Andreu Rico
Keyword(s):  
Freshwater Zooplankton ◽  
Increased Temperature ◽  
Zooplankton Communities

Fossil flower of Staphylea L. from the Miocene amber of Mexico: New evidence of the Boreotropical Flora in low-latitude North America

2017 ◽  
Vol 108 (4) ◽  
pp. 471-478 ◽  
Author(s):  
Ana L. Hernández-Damián ◽  
Sergio R. S. Cevallos-Ferriz ◽  
Alma R. Huerta-Vergara
Keyword(s):  
North America ◽  
Northern Hemisphere ◽  
Fossil Record ◽  
First Record ◽  
High Latitudes ◽  
Low Latitude ◽  
Southern Mexico ◽  
Apparent Lack ◽  
History Of ◽  
New Evidence

ABSTRACTA new flower preserved in amber in sediments of Simojovel de Allende, México, is identified as an extinct member of Staphyleaceae, a family of angiosperms consisting of only three genera (Staphylea, Turpinia and Euscaphis), which has a large and abundant fossil record and is today distributed over the Northern Hemisphere. Staphylea ochoterenae sp. nov. is the first record of a flower for this group, which is small, pedicelled, pentamer, bisexual, with sepals and petals with similar size, dorsifixed anthers and superior ovary. Furthermore, the presence of stamens with pubescent filaments allows close comparison with extant flowers of Staphylea bulmada and S. forresti, species currently growing in Asia. However, their different number of style (one vs. three) and the apparent lack of a floral disc distinguish them from S. ochoterenae. The presence of Staphyleaceae in southern Mexico ca. 23 to 15My ago is evidence of the long history of integration of vegetation in low-latitude North America, in which some lineages, such as Staphylea, could move southwards from high latitudes of the Northern Hemisphere, as part of the Boreotropical Flora. In Mexico it grew in association with tropical elements, as suggested by the fossil record of the area.

scholarly journals DEPREDACIÓN DE Saguinus leucopus (MAMMALIA: PRIMATES) SOBRE Phyllomedusa venusta (ANURA: HYLIDAE) EN EL DEPARTAMENTO DE CALDAS, COLOMBIA

2014 ◽  
Vol 4 (1) ◽  
pp. 75
Author(s):  
Andrés Arias Alzate ◽  
Juan D. Sanchez Londoño ◽  
Juan M. Daza ◽  
José F. González Maya
Keyword(s):  
Natural History ◽  
Key Words ◽  
Endemic Species ◽  
First Record ◽  
Primate Species ◽  
Amphibian Species ◽  
Ecological Information ◽  
History Of ◽  
Dietary Component

AbstractThe Silvery-brown Tamarin, Saguinus leucopus, is a primate species from the Callitrichidae family, endemic to Colombia, and that has very little ecological information. Here we report on a new dietary component for the species from Departamento de Caldas, Colombia, been the first record of S. leucopus predating an amphibian species (Phyllomedusa venusta). Despite some records exist about tamarin predation on amphibians, this is the first for this endemic species, and it is probably related with its foraging type. This record represents a noteworthy record and contributes to the knowledge of the natural history of this species. Key words: Andes, Callitrichidae, Colombia, Diet, Primates, Predation.Palabras clave: Andes, Callitrichidae, Colombia, Depredación, Dieta, Primates

Ecology and life history of the scansorial arboreal lizard Plica plica (Iguanidae) in Amazonian Brazil

1991 ◽  
Vol 69 (2) ◽  
pp. 504-511 ◽  
Author(s):  
Laurie J. Vitt
Keyword(s):  
Brazilian Amazon ◽  
Reproductive Season ◽  
Forest Species ◽  
Lizard Species ◽  
Lowland Forest ◽  
Prey Diversity ◽  
History Of ◽  
Amazonian Brazil ◽  
Two Populations ◽  
Clutch Mass

A field study on two populations of the tropical iguanid lizard Plica plica in the Brazilian Amazon revealed that this lowland forest species is diurnal, occurs on vertical smooth-barked trunks of the largest trees in the forest, and feeds mostly on ants. Comparisons between rainy season samples from Pará and dry season samples from Rondonia show that even though lizards ate, on average, the same number of prey, prey were larger in Rondonia and prey diversity was greater in Pará. Lizards sleep on tree trunks or similar surfaces when available, apparently leaving the trees only to deposit eggs. Clutches are deposited in palm litter and inside rotted palm trunks. Clutch size averages 2.9 ± 0.1 eggs and is significantly correlated with female snout–vent length. The reproductive season appears to be extended in that females produce at least two clutches. Relative clutch mass of females is low compared with that of other sit-and-wait foraging lizard species, and this, coupled with the flattened morphology, presumably reflects adaptations for maintaining the center of gravity near vertical smooth tree trunks.

scholarly journals New host and geographical records and morphological details for Echinuria skrjabiniensis (Nematoda, Acuariidae) from shorebirds in Argentina

2011 ◽  
Vol 56 (3) ◽  
Author(s):  
Julia Diaz ◽  
Guillermo Panisse ◽  
Graciela Escudero ◽  
John Kinsella
Keyword(s):  
Parasite Species ◽  
First Record ◽  
New Host ◽  
Electron Microscopies ◽  
Correct Spelling ◽  
Taxonomic History ◽  
History Of ◽  
Left Spicule ◽  
New Host Records ◽  
Scanning Electron

AbstractThe acuarioid nematode Echinuria skrjabiniensis Efimov in Skryabin, Sobolev et Ivashkin, 1965 was found in Calidris bairdii and C. fuscicollis (Aves, Scolopacidae) examined from several locations from Patagonia, Argentina. These constitute new host records as well as the first record of this parasite species in South America. Using both light and scanning electron microscopies, new morphological details are provided, including the description of the left spicule and the number and the arrangement of male caudal papillae. The taxonomic history of the species is summarized, corroborating its correct spelling and valid name.

Morphological and molecular identification of Octopoda (Mollusca: Cephalopoda) paralarvae from the southern Gulf of Mexico

2021 ◽  
Author(s):  
Mariana L Santana-Cisneros ◽  
Rossanna Rodríguez-Canul ◽  
Jesús Alejandro Zamora-Briseño ◽  
Monica Améndola-Pimenta ◽  
Roxana De Silva-Dávila ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
First Record ◽  
Coi Gene ◽  
Octopus Vulgaris ◽  
Type I ◽  
Molecular Sequences ◽  
Molecular Approaches ◽  
Morphological Criteria ◽  
Southern Gulf Of Mexico ◽  
Genetic Sequences

Paralarvae (PL) are crucial to understanding the life cycle and population dynamics of cephalopods. Misidentification of species with similar morphology is a problem that hampers understanding of cephalopod composition and distribution. In this study, we used morphological and molecular approaches to carry out a comprehensive identification of Octopoda PL that inhabit two main areas (Tamaulipas and Yucatán) in the southern Gulf of Mexico (GoM). A total of 189 paralarvae were identified using morphological criteria. Of these, 52 PL were analyzed molecularly by sequencing the mitochondrial cytochrome c oxidase subunit I (COI) gene. We identified four species and five morphotypes. The molecular tools corroborated three of four species, while the molecular sequences of three out of four morphotypes indicated that they belong to three different species. All the genetic sequences had high similarities (99.3%–100%) with previous records. One species and one morphotype could not be sequenced because of unsatisfactory fixation; one morphotype remained as such after the molecular analysis. An identification tree was constructed for the species identified with the molecular approach. The species found off the Yucatán platform were Octopus vulgaris Type I, Octopus americanus, Macrotritopus defilippi, Amphioctopus burryi, A. cf. burryi, Octopus sp., and Callistoctopus furvus. The species identified off the Tamaulipas coast were Octopus insularis and M. defilippi. Paralarvae of O. vulgaris Type I and M. defilippi were the most abundant during 2016–2017. This study provides the first record of Octopoda PL in the southern GoM, including morphological descriptions and molecular sequences of the analyzed taxa.

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