Confirmation of Aedes koreicus (Diptera: Culicidae) in Belgium and description of morphological differences between Korean and Belgian specimens validated by molecular identification

Zootaxa ◽  
2012 ◽  
Vol 3191 (1) ◽  
pp. 21 ◽  
Author(s):  
VEERLE VERSTEIRT ◽  
JAMES E. PECOR ◽  
DINA M. FONSECA ◽  
MARC COOSEMANS ◽  
WIM VAN BORTEL
Keyword(s):  
Korean Peninsula ◽  
Morphological Characteristics ◽  
Rapid Identification ◽  
Molecular Evidence ◽  
Island Population ◽  
Morphological Comparison ◽  
Aedes Koreicus ◽  
Island Populations ◽  
Molecular Comparison ◽  
Morphological Differences

In 2008, specimens resembling Aedes (Finlaya) koreicus (Edwards) (also Ochlerotatus koreicus or Hulecoeteomyia kore-ica) were found in Belgium during a national mosquito survey (MODIRISK). Small but consistent differences were, how-ever, observed between the specimens described from Peninsula Korea and those found in Belgian. To achieve the correctidentification a detailed morphological comparison was made between the Belgian specimens and reference material fromKorean mainland and island populations housed at the Smithsonian Institution (Walter Reed Biosystematics Unit (WR-BU), Washington, USA). The identification was furthermore supported by molecular evidence based on the ND4 region(mtDNA) of available Korean and Belgian mosquito specimens. Morphological and molecular comparison confirmed theinitial identification of Aedes koreicus. Based on morphological characteristics, the species collected in Belgium mostlikely originated from Jeju-do, an island south of the Korean Peninsula. The observed dissimilarities between Korean andBelgian specimens resembled a number of morphological differences mentioned previously between female adults col-lected on the Korean Peninsula and Jeju-do. This is the first report of Aedes koreicus outside its natural distribution range.A correct and rapid identification of new invading and spreading vector species is crucial for the implementation of effec-tive control measurements. Hence a correct and easy accessible description of all possible variations of species arrivingin new areas is highly recommended. Therefore, a comparative morphological study on the Smithsonian material of thespecies from Korean mainland, island population and from Belgium is given, pictures of the main aberrant characteristicsand scanning electron microscope images of all stages of the species are included and molecular confirmation of the identification based on the mtDNA ND4 region is provided.

A new species of Contomastix (Squamata, Teiidae) supported by total evidence, with remarks on diagnostic characters defining the genus

2019 ◽  
pp. 23-36
Author(s):  
Mario. R. Cabrera
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Phylogenetic Reconstruction ◽  
Total Evidence ◽  
Molecular Evidence ◽  
Proximal Margin ◽  
Diagnostic Characters ◽  
Morphological Differences ◽  
A New Species ◽  
Molecular Characters

Formerly Cnemidophorus was thought to be the most speciose genus of Teiidae. This genus comprised four morphological groups that were later defined as four different genera, Ameivula, Aurivela, Cnemidophorus and Contomastix. The last appears as paraphyletic in a recent phylogenetic reconstruction based on morphology, but monophyletic in a reconstruction using molecular characters. Six species are allocated to Contomastix. One of them, C. lacertoides, having an extensive and disjunct geographic distribution in Argentina, Uruguay and Brazil. Preliminary analyses revealed morphological differences among its populations, suggesting that it is actually a complex of species. Here, we describe a new species corresponding to the Argentinian populations hitherto regarded as C. lacertoides, by integrating morphological and molecular evidence. Furthermore, we demonstrate that the presence of notched proximal margin of the tongue is a character that defines the genus Contomastix.

scholarly journals A new western Atlantic snapping shrimp of the Alpheus macrocheles group (Caridea, Alpheidae) revealed by morphological, molecular and color data

2019 ◽  
Author(s):  
Guidomar O. Soledade ◽  
Mariana Terossi ◽  
Justin A. Scioli ◽  
Fernando Luis Mantelatto ◽  
Alexandre O. Almeida
Keyword(s):  
Color Pattern ◽  
Rrna Gene ◽  
Undescribed Species ◽  
16S Rrna Gene Sequences ◽  
Morphological Comparison ◽  
Western Atlantic ◽  
The North ◽  
Color Data ◽  
Morphological Differences ◽  
Northeastern Atlantic

Alpheus macrocheles (Hailstone, 1835), a species originally described from the northeastern Atlantic, has been reported from Brazil based on material from the north and northeast coasts and Espírito Santo. However, a thorough morphological comparison between Brazilian material reported as A. macrocheles and eastern Atlantic material of A. macrocheles revealed consistent differences, suggesting that the Brazilian specimens belong to an undescribed species. Alpheus ramosportoae sp. nov. is therefore now described based on material from Amapá to Pernambuco, Brazil. Morphological differences between the new species and A. macrocheles s. str. were supported by the clear divergence of 16S rRNA gene sequences (18% of genetic distance), separating the species in two distinct clades. Differences in the color pattern also were observed and illustrated.

Ficophagus (Nematoda: Aphelenchoididae) from sycones of Ficus subgenus Urostigma, sections Malvanthera and Urostigma, in eastern Australia

Nematology ◽  
2020 ◽  
Vol 22 (6) ◽  
pp. 627-653
Author(s):  
Kerrie A. Davies ◽  
Faerlie Bartholomaeus ◽  
Dong Mei Li ◽  
Zeng Qi Zhao ◽  
Weimin Ye ◽  
...  
Keyword(s):  
New South ◽  
Morphological Characteristics ◽  
Tail Length ◽  
Female Tail ◽  
South Wales ◽  
Eastern Australia ◽  
Two New Species ◽  
Morphological Differences ◽  
Tail Tip ◽  
Molecular Sequencing

Summary Ficophagus from collecting trips in eastern Australia, made over 15 years, are summarised and show that species of the genus occurred widely in sycones of Ficus, subgenus Urostigma, section Malvanthera. Two new species (based on morphological differences and molecular sequencing) are described: Ficophagus elizabethae sp. n. from Ficus macrophylla, F. rubiginosa and F. obliqua, and Ficophagus richardi sp. n. from Ficus obliqua; and a morphospecies, Ficophagus Morphospecies malandicus from Ficus obliqua. Ficophagus elizabethae sp. n. is characterised by having the excretory pore (EP) opening from the level of the junction of the conus and shaft of the stylet to that of the knobs, a relatively long procorpus (1.0-2.5 times length of stylet), female tail with an obliquely truncate tail with a hyaline area and a finely to broadly rounded tip which may be mucronate; post-vulval uterine sac (PUS) ca one vulval body diam. (VBD) in length; rose-thorn-shaped spicule with distinct rostrum and prominent condylus; and genital papillae arranged as largest pair adcloacal, second pair posterior to mid-tail length, and third small pair near tail tip; and was collected from Sydney in New South Wales, to Bundaberg in Queensland (QLD). Ficophagus richardi sp. n. is characterised by having the EP opening at the level of the junction of the stylet shaft and conus, a labial cap which is raised around the opening for the stylet; procorpus 0.8-1.7 times length of the stylet, PUS <1 VBD in length, long uterus, and female tail with a V-shaped hyaline area at the bluntly rounded tip; rose-thorn-shaped spicule with a small rostrum and prominent condylus, three pairs genital papillae, first and largest on anterior cloacal lip, second at 70% of tail length measured from cloacal aperture, and third near tip, and was collected from Ban Ban Springs in the south to the Bundaberg region in the mid-north of QLD. In addition, in the absence of pertinent molecular sequences, a morphospecies is described. Ficophagus Morphospecies malandicus is characterised by having the EP opening anterior to the junction of the stylet conus and shaft, procorpus 0.9-2 times length of stylet, a short PUS usually <1 VBD long, short uterus, rose-thorn-shaped spicule with a raised condylus and prominent rostrum, and three pairs of subventral papillae on the tail (one adcloacal, one posterior to mid-tail and one near tail tip); and was collected from the Atherton Tableland, QLD. A table comparing morphological characteristics is provided to help with identification of Ficophagus nematodes from figs of the section Malvanthera in eastern Australia.

Ceriporia albomellea (Phanerochaetaceae, Basidiomycota), a new species from tropical China based on morphological and molecular evidences

Phytotaxa ◽  
2017 ◽  
Vol 298 (1) ◽  
pp. 20 ◽  
Author(s):  
YUAN YUAN ◽  
XIAO-HONG JI ◽  
FANG WU ◽  
JIA-JIA CHEN
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Ribosomal Rna ◽  
Internal Transcribed Spacer ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Molecular Evidence ◽  
Its Regions ◽  
Tropical China ◽  
A New Species

A new polypore, Ceriporia albomellea, collected from tropical China, is described and illustrated based on morphological characteristics and molecular evidence. It is characterized by thin, resupinate basidiome with a white subiculum, cottony margin, white to cinnamon-buff pores, clavate cystidia and oblong-ellipsoid basidiospores measured as 3.1–3.8 × 1.7–2 µm. Phylogenetic analysis based on the internal transcribed spacer (ITS) regions and nuclear large subunit (nLSU) ribosomal RNA gene regions supported C. albomellea as a distinctive species belonging to Ceriporia.

Taxonomic status of Clematis acerifolia var. elobata, based on molecular evidence

Phytotaxa ◽  
2016 ◽  
Vol 268 (3) ◽  
pp. 209 ◽  
Author(s):  
SHUANG-XI YAN ◽  
HUI-JIE LIU ◽  
LE-LE LIN ◽  
SHUAI LIAO ◽  
JIN-YU LI ◽  
...  
Keyword(s):  
Taxonomic Status ◽  
Species Level ◽  
Distribution Area ◽  
Molecular Evidence ◽  
Discrimination Power ◽  
Nuclear Its ◽  
The Mean ◽  
Morphological Differences ◽  
The Relationship ◽  
Better Than

The morphologically based taxonomic status of Clematis acerifolia var. elobata has been controversial. This study used two nuclear (ITS and ETS) and six plastid (rps16, rpl16, accD, trnS-trnG, atpB-rbcL, and trnV-atpE) molecular markers, and a DNA barcoding analysis to address the taxonomic status of C. acerifolia var. elobata and the relationship among other Clematis species. Our results showed that the discrimination power of ITS, ETS, and atpB-rbcL was better than that of the other tested DNA regions. When all tested sequences combined, most of the sampled taxa were resolved. Though the two taxa are closely related, they have differentiated clearly and formed two clades respectively. The mean divergence of the two taxa was 0.78%, which was higher than closely related Clematis species such as C. heracleifolia and C. pinnata (0.50 %). Considering molecular divergence, morphological differences, and distribution area, we raised C. acerifolia var. elobata to species level.

Factors influencing population dynamics in island and mainland populations of the swamp antechinus (Antechinus minimus)

2008 ◽  
Vol 56 (3) ◽  
pp. 187 ◽  
Author(s):  
Michael G. Sale ◽  
Barbara A. Wilson ◽  
John P. Y. Arnould
Keyword(s):  
Island Population ◽  
Nutrient Inputs ◽  
Demographic Differences ◽  
Island Populations ◽  
Juvenile Recruitment ◽  
Factors Influencing ◽  
Eastern Australia ◽  
Demographic Processes ◽  
Island Habitats ◽  
Individual Body

Simultaneously analysing demographic processes of small mammals living in different ecological contexts may help to understand mechanisms that influence the growth and decline of these populations. The size and demography of swamp antechinus (Antechinus minimus) populations located in a coastal mainland habitat and on a small offshore island in south-eastern Australia were investigated. Large demographic differences occurred between the two ecosystems, with the island population density often 100 times greater than that on the mainland. The swamp antechinus in the mainland habitat was influenced by extrinsic climatic forces, with juvenile recruitment, individual body mass and overall population size being affected by rainfall, a factor likely to influence food availability for the species. However, the island population did not appear to be affected by drought to the same degree where allochthonous marine nutrient inputs may have offset any drought-induced reduction in primary production. Significantly greater juvenile recruitment in the island habitats combined with restricted emigration and potentially reduced predation and interspecific competition are likely to be responsible for the high population densities on the island. Although island populations appear robust, future conservation efforts should focus on mainland populations given the genetic deficiencies in the island populations.

Origin, extinction and ancient DNA of a new fossil insular viper: molecular clues of overseas immigration

2020 ◽  
Author(s):  
Enric Torres-Roig ◽  
Kieren J Mitchell ◽  
Josep Antoni Alcover ◽  
Fernando Martínez-Freiría ◽  
Salvador Bailón ◽  
...  
Keyword(s):  
Complete Mitochondrial Genome ◽  
Morphological Characteristics ◽  
Western Mediterranean ◽  
Balearic Islands ◽  
Mediterranean Islands ◽  
North East ◽  
Iberian Population ◽  
Morphological Differences ◽  
A New Species ◽  
Insular Population

Abstract Viperinae is a subfamily of viperid snakes whose fossil record in the Mediterranean islands is, until now, restricted to 12 palaeontological deposits on seven islands. Revision of the material excavated 30 years ago from the Middle/Late Pleistocene–Holocene deposit of Es Pouàs [Eivissa (= Ibiza), Balearic Islands, western Mediterranean] revealed about 6000 bones of a small-sized viper across different stratigraphic levels. Its morphological characteristics are different enough to known species of Vipera to warrant the description of a new species, but the nearly complete mitochondrial genome obtained from this snake based on a sample dated to 16 130 ± 45 bp, suggested it belonged to a new insular population of Lataste’s viper (Vipera latastei), Vipera latastei ebusitana subsp. nov. Phylogenetic analysis indicates that the dispersal of the ancestors of V. l. ebusitana to Eivissa, most probably from a north-east Iberian population, occurred via overwater colonization &lt; 1.5 Mya, well after the Messinian Salinity Crisis (5.97–5.32 Mya) when land bridges allowed terrestrial colonization of the Balearic Islands by mainland faunas. The morphological differences between V. l. ebusitana and the Iberian populations suggest that it is a new dwarf taxon resulting from insular evolutionary processes, becoming extinct shortly after the first human arrival to this island about 4000 years ago.

Eucheumatopsis sanibelensis sp. nov. from the Gulf coast of Florida, USA

Phytotaxa ◽  
2020 ◽  
Vol 440 (3) ◽  
pp. 215-224 ◽  
Author(s):  
ELIAS S. PETERSON ◽  
CRAIG W. SCHNEIDER ◽  
GARY W. SAUNDERS
Keyword(s):  
Gulf Coast ◽  
Sequence Data ◽  
Algal Species ◽  
Morphological Characteristics ◽  
Caribbean Sea ◽  
Lsu Rdna ◽  
Eastern Gulf Of Mexico ◽  
Single Location ◽  
Red Algal ◽  
Morphological Differences

Based upon COI-5P, LSU rDNA and rbcL sequence data, as well as its morphological characteristics, a new red algal species, Eucheumatopsis sanibelensis E.S.Peterson, C.W.Schneider et G.W.Saunders sp. nov., was discovered on the Gulf coast of Florida, USA and shown to be distinct from the generitype E. isiformis with a type locality in the eastern Caribbean Sea. The new more attenuate taxon from Sanibel Island represents only the second species in this newly described genus, a genus recently segregated from Eucheuma based upon significant molecular and morphological differences. The two species have overlapping geographic distributions in the eastern Gulf of Mexico, but thus far E. sanibelensis is only known from a single location.

Two new species in the genus Phoxokalliapseudes Drumm & Heard, 2011 (Crustacea: Tanaidacea: Kalliapseudidae) from the southwestern and southern coasts of Korea

Zootaxa ◽  
2017 ◽  
Vol 4231 (3) ◽  
pp. 341 ◽  
Author(s):  
JIN HEE WI ◽  
CHANG-KEUN KANG ◽  
HO YOUNG SOH
Keyword(s):  
New Species ◽  
Developmental Stages ◽  
Size Range ◽  
Morphological Characteristics ◽  
Width Ratio ◽  
Fixed Size ◽  
Type Specimens ◽  
Two New Species ◽  
Comprehensive Comparison ◽  
Morphological Differences

Two new species of Phoxokalliapseudes from the southwestern and southern coasts of Korea are described. Phoxokalliapseudes aculeatus n. sp. is distinguished by the two robust spiniform setae on the ventral margin of the cheliped basis, pereonites 2–6 each with a hyposphaenium and small spinules, and the setiferous lobe on the mandibles with different numbers of serrated spiniform setae in the female and male (five and six, respectively). Phoxokalliapseudes cinctus n. sp. can be distinguished by the propodus of the male cheliped with the largest length to width ratio (2.5: 1) of the genus, and the fixed finger with small denticles on the cutting edge and near the insertion of the dactylus. The female has the largest dactylus to propodus length ratio of pereopod 6 in the genus. Only four species of Phoxokalliapseudes have been described or redescribed previously, of which some exhibit morphological differences with the type specimens, possibly indicating additional new species. To minimize identification difficulties caused by morphometric variations in developmental stages, the morphological characteristics of the new species are described in detail for a fixed size range and compared to different-sized individuals. Additionally, a comprehensive comparison of the new Phoxokalliapseudes species with the other known species is provided and discussed. 

Genetic diversity in natural and introduced island populations of koalas in Queensland

2012 ◽  
Vol 60 (5) ◽  
pp. 303 ◽  
Author(s):  
Kristen E. Lee ◽  
Jennifer M. Seddon ◽  
Stephen Johnston ◽  
Sean I. FitzGibbon ◽  
Frank Carrick ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Allelic Richness ◽  
Island Population ◽  
Founder Effects ◽  
Phascolarctos Cinereus ◽  
Island Populations ◽  
The North ◽  
Mitochondrial Haplotypes ◽  
Naturally Occurring ◽  
Microsatellite Alleles

Island populations of animals are expected to show reduced genetic variation and increased incidence of inbreeding because of founder effects and the susceptibility of small populations to the effects of genetic drift. Koalas (Phascolarctos cinereus) occur naturally in a patchy distribution across much of the eastern Australian mainland and on a small number of islands near the Australian coast. We compared the genetic diversity of the naturally occurring population of koalas on North Stradbroke Island in south-east Queensland with other island populations including the introduced group on St Bees Island in central Queensland. The population on St Bees Island shows higher diversity (allelic richness 4.1, He = 0.67) than the North Stradbroke Island population (allelic richness 3.2, He = 0.55). Koalas on Brampton, Newry and Rabbit Islands possessed microsatellite alleles that were not identified from St Bees Island koalas, indicating that it is most unlikely that these populations were established by a sole secondary introduction from St Bees Island. Mitochondrial haplotypes on the central Queensland islands were more similar to a haplotype found at Springsure in central Queensland and the inland clades in south-east Queensland, rather than the coastal clade in south-east Queensland.

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