scholarly journals A New Tribe of the Ladybird Beetle Subfamily Microweiseinae (Coleoptera: Coccinellidae) Discovered on an Island in the North Atlantic Ocean

Insects ◽  
2020 ◽  
Vol 11 (6) ◽  
pp. 367
Author(s):  
Karol Szawaryn ◽  
Jaroslav Větrovec ◽  
Wioletta Tomaszewska
Keyword(s):  
North Atlantic ◽  
North Atlantic Ocean ◽  
Morphological Characters ◽  
Molecular Data ◽  
New Taxon ◽  
The North ◽  
The World ◽  
New Tribe ◽  
Morphological And Molecular Data ◽  
Distinct Branch

Microweiseinae is a quite recently established subfamily within ladybird beetles (Coccinellidae). According to recent analyses of morphological and molecular data, it has been divided into three tribes. Members of the subfamily are distributed mostly in tropical and subtropical regions of the world. Despite several recent taxonomical studies of this group, its diversity and distribution is still not fully understood. Recent field collecting on Madeira Island resulted in the discovery of interesting specimens belonging to a yet unknown taxon, described here as Madeirodula atlantica gen. et sp. nov. Phylogenetic analysis of morphological characters indicate that the new taxon form a distinct branch within the subfamily Microweiseinae, for which we propose a new tribe Madeirodulini trib. nov. Evolutionary trends within the subfamily are discussed, and an updated key to the tribes of Microweiseinae is provided.

Complement to the knowledge of the Haploops species (Crustacea, Gammaridea, Ampeliscidae), with the description of two new species from North Atlantic Ocean. [Contribution to the knowledge of the Haploops genus. 10.]

Zootaxa ◽  
2021 ◽  
Vol 5048 (2) ◽  
pp. 151-175
Author(s):  
R.A. KAIM-MALKA ◽  
D. BELLAN-SANTINI ◽  
J.C. DAUVIN
Keyword(s):  
Atlantic Ocean ◽  
North Atlantic ◽  
North Atlantic Ocean ◽  
Morphological Characters ◽  
Valid Species ◽  
Single Pair ◽  
The North ◽  
Two New Species ◽  
The Status ◽  
The North Atlantic

Two new Haploops species are described from the North Atlantic Ocean: a blind species Haploops faroensis spec. nov. and Haploops truncata spec. nov. with a single pair of corneal lenses. In addition, Haploops vallifera Stephensen 1925 and Haploops similis Stephensen 1925, are re-described and the status of Haploops spinosa Shoemaker 1931, is re-established as a valid species. A table is given of the 75 morphological characters of the studied species.  

scholarly journals Sexually Dimorphic Morphological Characters in Five North Atlantic Deepwater Skates (Chondrichthyes: Rajiformes)

2011 ◽  
Vol 2011 ◽  
pp. 1-18 ◽  
Author(s):  
Alexei M. Orlov ◽  
Charles F. Cotton
Keyword(s):  
Sexual Dimorphism ◽  
North Atlantic ◽  
North Atlantic Ocean ◽  
Morphological Characters ◽  
Sexually Dimorphic ◽  
Gill Slit ◽  
The North ◽  
Disc Width ◽  
Horizontal Diameter ◽  
Mouth Width

Skates exhibit a variety of manifestations of sexual dimorphism. However, this phenomenon has been poorly documented in deepwater species. New data on the sexual dimorphism of five species of deepwater skates from the North Atlantic Ocean are presented:Amblyraja jenseni, Bathyraja pallida, Bathyraja richardsoni, Rajella bigelowi,andR. kukujevi. These skates exhibit sexual dimorphism most frequently in interorbital width, disc length and width, length of the third gill slit, horizontal diameter of the orbit, length of the fifth gill slit, space between the first and fifth gill slits, length of the second dorsal fin base, mouth width, length and width of each lobe of the nasal curtain, distance from the snout to the center of anus, distance from the snout tip to the point of maximum disc width, length of the lateral fold, length of the orbit + spiracle (measured together), tail height at the pelvic fin tips, and the number of median thorns.

scholarly journals Rare Atmospheric River Caused Record Floods across the Middle East

2020 ◽  
Vol 101 (4) ◽  
pp. E394-E400 ◽  
Author(s):  
Amin Dezfuli
Keyword(s):  
Middle East ◽  
North Africa ◽  
North Atlantic ◽  
North Atlantic Ocean ◽  
Zagros Mountains ◽  
Atmospheric Rivers ◽  
The North ◽  
Subtropical Jet ◽  
The World ◽  
Orographic Forcing

Abstract Atmospheric rivers (ARs) are responsible for some of the hydroclimatic extremes around the world. Their mechanisms and contribution to flooding in the Middle East are relatively poorly understood. This study shows that the record floods during March 2019 across the Middle East were caused by a powerful AR, originated from the North Atlantic Ocean. Iran, in particular, was substantially affected by the floods. The nearly 9,000-km-long AR propagated across North Africa and the Middle East, and was fed by additional moisture from several other sources on its pathway. Simultaneous presence of a midlatitude system and a subtropical jet facilitated the moisture supply. The AR, as passing over the Zagros Mountains, produced record rainfall induced by the orographic forcing. The resulting floods caused widespread damage to infrastructures and left a death toll of at least 76 in Iran.

Punctulini (Hemiptera: Cicadellidae: Deltocephalinae), a new leafhopper tribe from the Oriental region and Pacific Islands

Zootaxa ◽  
2017 ◽  
Vol 4226 (2) ◽  
pp. 229 ◽  
Author(s):  
W. DAI ◽  
J.N. ZAHNISER ◽  
C.A. VIRAKTAMATH ◽  
M.D. WEBB
Keyword(s):  
New Species ◽  
Pacific Islands ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Molecular Data ◽  
New Genera ◽  
Oriental Region ◽  
New Tribe ◽  
Morphological And Molecular Data

A new tribe of the leafhopper subfamily Deltocephalinae, Punctulini tribe nov., from China, India, Thailand, and Fiji is described and includes three new genera and five new species: Punctulus gen. nov. includes P. tumidifrons sp. nov. from China, P. manipurensis from India, and P. lobatus sp. nov. from Thailand; Hirsutula gen. nov. includes H. rubrifrons sp. nov. from Thailand; and Taveunius gen. nov. includes T. megapunctatus sp. nov., from Fiji. A key to the genera of Punctulini is provided. Observations on the shared morphological characters of Punctulini with the superficially similar tribe Magnentiini, and with Vartini to which it is found to be related based on phylogenetic analyses of morphological and molecular data including newly available sequences and analyses, are made and discussed. Afrovarta Zahniser 2013 is removed from Vartini and placed in Athysanini, placement nov. 

scholarly journals Understanding subterranean variability: the first genus of Bathynellidae (Bathynellacea, Crustacea) from Western Australia described through a morphological and multigene approach

2018 ◽  
Vol 32 (2) ◽  
pp. 423 ◽  
Author(s):  
G. Perina ◽  
A. I. Camacho ◽  
J. Huey ◽  
P. Horwitz ◽  
A. Koenders
Keyword(s):  
Western Australia ◽  
New Genus ◽  
Integrated Approach ◽  
Morphological Characters ◽  
Molecular Data ◽  
Additional Species ◽  
The North ◽  
Morphological And Molecular Data ◽  
Taxonomic Framework ◽  
One New Species

The number of subterranean taxa discovered in the north of Western Australia has substantially increased due to the requirements for environmental surveys related to mining development. Challenges in estimating subterranean biodiversity and distributions are related to lack of knowledge of taxa with convergent morphological characters in a largely unobservable ecosystem setting. An integrated approach is warranted to understand such complexity. Bathynellidae occur in most Australian aquifers, but only one species has been described so far, and the group lacks a reliable taxonomic framework. A new genus and one new species from the Pilbara region of Western Australia, Pilbaranella ethelensis, gen. et sp. nov., is described using both morphological and molecular data. Three additional species of Pilbaranella are defined through mitochondrial and nuclear genes, using Automatic Barcode Gap Discovery and Poisson Tree Processes species delimitation methods. A comparison of morphology and 18S rRNA sequences between Pilbaranella, gen. nov. and known lineages provides the evidentiary basis for the decision to establish a new genus. This study provides a morphological and molecular framework to work with Bathynellidae, especially in Australia where a highly diverse fauna remains still undescribed.

scholarly journals Changes in Temperature and Salinity Tendencies of the Upper Subtropical North Atlantic Ocean at 24.5°N

2010 ◽  
Vol 40 (11) ◽  
pp. 2546-2555 ◽  
Author(s):  
Pedro Vélez-Belchí ◽  
Alonso Hernández-Guerra ◽  
Eugenio Fraile-Nuez ◽  
Verónica Benítez-Barrios
Keyword(s):  
Atlantic Ocean ◽  
North Atlantic ◽  
Decadal Variability ◽  
North Atlantic Ocean ◽  
Upper Ocean ◽  
Ocean Temperature ◽  
The North ◽  
The World ◽  
Invaluable Tool ◽  
The North Atlantic

Abstract Strong interest in multidecadal changes in ocean temperature and heat transport has resulted in the occupation of the North Atlantic Ocean hydrographic transect along 24.5°N five times since 1957, more than any other transoceanic section in the world. This latitude is chosen because it is where the northward ocean transport of heat in the Atlantic reaches its maximum. An analysis of the five oceanographic cruises at this latitude shows that there has been a significant cooling of −0.15°C in the upper ocean (600–1800-dbar range) over the last 7 years, from 1998 to 2004, which is in contrast to the warming of 0.27°C observed from 1957 to 1998. Salinity shows a similar change in tendency, with freshening since 1998. For the upper ocean at 24.5°N, 1998 was the warmest and saltiest year since 1957. Data from the Argo network are used to corroborate the strong cooling and freshening since 1998, showing a −0.13°C cooling in the period between 1998 and 2006 and revealing interannual variability between 2005 and 2008 to be much smaller than the decadal variability estimated using the transect. The results also demonstrate that Argo is an invaluable tool for observing the oscillations in the tendencies of the ocean.

scholarly journals Molecular and morphological phylogeny of host-specific Dactylogyrus parasites (Monogenea) sheds new light on the puzzling Middle Eastern origin of European and African lineages

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Michal Benovics ◽  
Farshad Nejat ◽  
Asghar Abdoli ◽  
Andrea Šimková
Keyword(s):  
Middle East ◽  
De Novo ◽  
Middle Eastern ◽  
Phylogenetic Reconstruction ◽  
Morphological Characters ◽  
Molecular Data ◽  
Integrative Approach ◽  
Asian Origin ◽  
The North ◽  
Morphological And Molecular Data

Abstract Background Freshwater fauna of the Middle East encompass elements shared with three continents—Africa, Asia, and Europe—and the Middle East is, therefore, considered a historical geographic crossroad between these three regions. Even though various dispersion scenarios have been proposed to explain the current distribution of cyprinids in the peri-Mediterranean, all of them congruently suggest an Asian origin for this group. Herein, we investigated the proposed scenarios using monogenean parasites of the genus Dactylogyrus, which is host-specific to cyprinoid fishes. Methods A total of 48 Dactylogyrus species parasitizing cyprinids belonging to seven genera were used for molecular phylogenetic reconstruction. Taxonomically important morphological features, i.e., sclerotized elements of the attachment organ, were further evaluated to resolve ambiguous relationships between individual phylogenetic lineages. For 37 species, sequences of partial genes coding 18S and 28S rRNA, and the ITS1 region were retrieved from GenBank. Ten Dactylogyrus species collected from Middle Eastern cyprinoids and D. falciformis were de novo sequenced for the aforementioned molecular markers. Results The phylogenetic reconstruction divided all investigated Dactylogyrus species into four phylogenetic clades. The first one encompassed species with the “varicorhini” type of haptoral ventral bar with a putative origin linked to the historical dispersion of cyprinids via the North African coastline. The second clade included the majority of the investigated species parasitizing various phylogenetically divergent cyprinid hosts. The morphological and molecular data suggest the ancestral diversification of the species of this clade into two groups: (1) the group possessing the haptoral ventral bar of the “cornu” type, and (2) the group possessing the “wunderi” type. Dactylogyrus diversification apparently occurred in the Middle East, which is indicated by the presence of species with all morphotypes in the region. The last two clades included species parasitizing cyprinids with an East Asian origin, and species possessing the “magnihamatus” type of ventral bar. Conclusions The molecular data suggest that some morphological characters of host-specific parasites may undergo convergent evolution in the divergent lineages, and therefore, to fully resolve the phylogenetic relationships among host-specific parasites, an integrative approach combining morphological and molecular data is still needed. In addition, our study indicates that parasite diversity in many regions is still under-explored, and thus we highlight the importance of studies of host-associated parasites, especially in the context of freshwater fish biogeography. Graphical Abstract

Two new Haploops species (Crustacea: Gammaridea: Ampeliscidae) from the North Atlantic Ocean: H. bjarnii and H. quebecoisis [Contribution to the knowledge of the Haploops genus. 9.]

Zootaxa ◽  
2018 ◽  
Vol 4483 (3) ◽  
pp. 480
Author(s):  
D. BELLAN-SANTINI ◽  
R.A. KAIM-MALKA ◽  
J.C. DAUVIN
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
North Atlantic ◽  
North Atlantic Ocean ◽  
Morphological Characters ◽  
Similar Species ◽  
The North ◽  
The North Atlantic

Two new Haploops species are described, both from the North Atlantic Ocean: Haploops bjarnii nov. sp. from around the Faeroe Islands and Iceland, and Haploops quebecoisis nov. sp. from the Saint Lawrence Gulf, off Canada. Haploops bjarnii is a species morphologically close to H. islandica Kaim-Malka, Bellan-Santini & Dauvin, 2016. These are two blind Haploops species, with long antennae. Haploops quebecoisis is morphologically similar to H. sibirica Gurjanova 1929, both species having 2 pairs of corneal lenses in the same position. A table of the 75 morphological characters is presented that can be used permitting to distinguish the new species from similar species. 

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