TAXONOMIC STATUS OF THE ROCKY MOUNTAIN LOCUST: MORPHOMETRIC COMPARISONS OF MELANOPLUS SPRETUS (WALSH) WITH SOLITARY AND MIGRATORY MELANOPLUS SANGUINIPES (F.)

1989 ◽  
Vol 121 (12) ◽  
pp. 1103-1109 ◽  
Author(s):  
Jeffrey A. Lockwood
Keyword(s):  
Morphometric Analysis ◽  
Rocky Mountain ◽  
Taxonomic Status ◽  
Environmental Variation ◽  
Body Measurements ◽  
Melanoplus Sanguinipes ◽  
Morphometric Characters ◽  
The Status ◽  
Solitary Phase

AbstractMorphometric analysis of 16 body measurements of migratory and solitary Melanoplus sanguinipes (F.) and M. spretus (Walsh) was used to determine if M. spretus was, in fact, the migratory phase of M. sanguinipes. Migratory M. sanguinipes was found to be more similar to its own solitary phase than to M. spretus. Melanoplus spretus resembled migratory M. sanguinipes, but in 14 comparisons M. spretus differed significantly from both solitary and migratory M. sanguinipes. Despite the potential for environmental variation obscuring differences in morphology, the divergent morphometric characters of M. spretus and the phases of M. sanguinipes appear to justify the status of M. spretus as a true species.

On three unpublished lectotype designations and on the status and positions of Kreizbergius simo-group taxa (Lepidoptera, Papilionidae)

2018 ◽  
Vol 69 (2) ◽  
pp. 98-106
Author(s):  
Stanislav K. Korb
Keyword(s):  
Taxonomic Status ◽  
New Synonyms ◽  
The Status

The taxonomic status and positions of taxa described within the genus Kreizbergius Korshunov, 1990 (the simo-group sensu Ackery, 1975) are rearranged. Lectotypes of the following taxa are designated: Parnassius simo var. simonius Staudinger, 1889, Parnassius simo var. simulator Staudinger, 1889, Parnassius gylippos Fruhstorfer, 1903, Parnassius simo confusa Bang-Haas, 1927. It is shown that K. anrdeji (Eisner, 1930) is a subspecies of K. simonius and has the oldest available name K. simonius kozlovi Avinov, 1913. New synonyms within K. simo and K. simonius are established.

Pseudodactylaria brevis sp. nov. from Thailand confirms the status of Pseudodactylariaceae

Phytotaxa ◽  
2018 ◽  
Vol 369 (4) ◽  
pp. 241 ◽  
Author(s):  
CHUAN-GEN LIN ◽  
ERIC H. C. MCKENZIE ◽  
DARBHE J. BHAT ◽  
JIAN-KUI LIU ◽  
KEVIN D. HYDE ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Sequence Data ◽  
Taxonomic Status ◽  
Its Sequence ◽  
Morphological Comparison ◽  
Phylogenetic Placement ◽  
Data Analyses ◽  
The Status ◽  
A New Species

A new species, Pseudodactylaria brevis, is described, illustrated and compared with other Pseudodactylaria and Dactylaria-like taxa. Evidence for the new species is provided by morphological comparison and sequence data analyses. Pseudodactylaria brevis can be distinguished from other Pseudodactylaria and Dactylaria-like species by its short hyaline conidiophores and fusiform, 1-septate hyaline conidia. Phylogenetic analysis of LSU and ITS sequence data was carried out to determine the phylogenetic placement of the species and confirm the taxonomic status of Pseudodactylariaceae.

scholarly journals PRIMATA BESAR DI JAWA: SPESIMEN BARU GIGANTOPITHECUS DARI SEMEDO

2016 ◽  
Vol 36 (2) ◽  
pp. 141-160 ◽  
Author(s):  
Sofwan Noerwidi
Keyword(s):  
Morphometric Analysis ◽  
Research Problem ◽  
Homo Erectus ◽  
Taxonomic Position ◽  
Tropical Environment ◽  
High Latitudes ◽  
Comparison Study ◽  
Species Identity ◽  
Morphometric Characters ◽  
Very High

In 2014 there was found two "enigmatic" specimens of mandible, which named as Semedo 3417 and 3418. Both mandibles are morphologically similar but twice bigger than common primate’s jaw. In this research, we use morphology and morphometric analysis to determine the species identity and taxonomic position of those specimens. For comparison study we use some samples from Homo erectus (Java and China), Gigantopithecus (blacki and bilaspurensis), Australopithecines (robust and gracile). Based on morphology and morphometric characters on the mandible and teeth, it is concluded that Semedo specimen tends to be close to Gigantopithecus blacki. The discoveries of Gigantopithecus fossil in Java has implication on some research problem, especially regarding the adaptation pattern of this species which known only found at high latitudes environment. Furthermore this discovery has reinforced the perspective that tropical environment has a very high biodiversity, particularly on primate fossils.

Species relationships in the dasyurid marsupial genus Pseudantechinus (Marsupialia : Dasyuridae): a re-examination of the taxonomic status of Pseudantechinus roryi

2017 ◽  
Vol 65 (4) ◽  
pp. 240 ◽  
Author(s):  
L. S. Umbrello ◽  
P. A. Woolley ◽  
M. Westerman
Keyword(s):  
Dna Sequences ◽  
Isolation By Distance ◽  
Phylogenetic Analyses ◽  
Mitochondrial Gene ◽  
Taxonomic Status ◽  
Museum Collections ◽  
Species Relationships ◽  
Type Specimens ◽  
Network Analyses ◽  
The Status

The status of Pseudantechinus roryi relative to its congeners has been determined from DNA sequences obtained from both nuclear and mitochondrial gene loci. Although all other recognised species of Pseudantechinus form reciprocally monophyletic lineages in phylogenetic analyses, individuals identified in museum collections as Ps. roryi (including type specimens) were indistinguishable from those identified as Ps. macdonnellensis. Ps. roryi is thus considered to be a synonym of Ps. macdonnellensis. Neighbour-joining network analyses failed to reveal any clear biogeographic differences between populations of Ps. macdonnellensis other than some evidence of isolation by distance.

The status of the races of the graceful crag lizard, Pseudocordylus capensis, from South Africa

1992 ◽  
Vol 13 (2) ◽  
pp. 109-119 ◽  
Author(s):  
Y.M. Herselman ◽  
J.H. Van Wyk ◽  
P. le F.N. Mouton
Keyword(s):  
South Africa ◽  
Geographical Variation ◽  
Taxonomic Status ◽  
Morphological Characters ◽  
Distribution Range ◽  
The Status ◽  
Formal Taxonomy ◽  
New Distribution

AbstractTo evaluate the taxonomic status of the races of the graceful crag lizard, Pseudocordylus capensis, geographical variation in 44 external morphological characters was determined, using 97 specimens from 31 localities. Two different epiphenotypes predominate in the northern and southwestern parts of the distribution range. These epiphenotypes are, however, connected by a continuum of variation. It is therefore suggested that the recognition of races be abandoned in the formal taxonomy. Several new distribution records for the species are provided.

scholarly journals On two species of Riocypris (Crustacea, Ostracoda) from northern Patagonia and their relation to Eucypris fontana: implications in paleoenvironmental reconstructions

2018 ◽  
Vol 96 (8) ◽  
pp. 801-817 ◽  
Author(s):  
C.A. Coviaga ◽  
A.P. Pérez ◽  
L.Y. Ramos ◽  
P. Alvear ◽  
G.C. Cusminsky
Keyword(s):  
Sexual Dimorphism ◽  
Morphometric Analysis ◽  
Indicator Species ◽  
Taxonomic Status ◽  
Geometric Morphometric ◽  
Comparative Analyses ◽  
Northern Patagonia ◽  
Geometric Morphometric Analysis ◽  
The Individual ◽  
First Time

Two species of ostracods new to Patagonia, Argentina, are described. One of them, Riocypris whatleyi sp. nov., is described for the first time, and the second, Riocypris sarsi (Daday, 1902) comb. nov., is reallocated from genus Eucypris to genus Riocypris. Inter- and intra-specific variations in shape, size, and sexual dimorphism were evaluated based on geometric morphometric analysis. Moreover, morphological and morphometric comparative analyses were applied to re-examine living and quaternary specimens recovered from previous studies. Based on these results, a generic reassignment for the Patagonian Eucypris fontana (Jurine, 1820) into the genus Riocypris is proposed. Contributing to the knowledge on the systematic and autecology of this enigmatic species, widely distributed in Patagonia and frequently used in paleolimnological reconstructions, generates science-based evidence for their use as indicator species. Additionally, our results emphasize the usefulness of studying the living representatives (i.e., with valves and appendages) for elucidating the taxonomic status of the individual specimens, especially those present in paleontological records and used as bioproxies in paleolimnological studies.

Taxonomy, natural history, and conservation of the Great-billed Seed-Finch Sporophila maximiliani (Cabanis, 1851) (Thraupidae, Sporophilinae)

Zootaxa ◽  
2018 ◽  
Vol 4442 (4) ◽  
pp. 551 ◽  
Author(s):  
FLÁVIO KULAIF UBAID ◽  
LUÍS FABIO SILVEIRA ◽  
CESAR A. B. MEDOLAGO ◽  
THIAGO V. V. COSTA ◽  
MERCIVAL ROBERTO FRANCISCO ◽  
...  
Keyword(s):  
Natural History ◽  
South America ◽  
Captive Breeding ◽  
Conservation Status ◽  
Bird Species ◽  
Principal Component ◽  
Taxonomic Status ◽  
Morphological Characters ◽  
Morphometric Characters ◽  
History Of

Seed-finches are small-sized Neotropical granivorous birds characterized by extremely strong and thick beaks. Among these birds, the Great-billed Seed-Finch Sporophila maximiliani has been selectively and intensively trapped to the extent that has become one of the most endangered bird species in South America, yet its taxonomy remains complex and controversial. Two subspecies have been recognized: S. m. maximiliani (Cabanis, 1851), mainly from the Cerrado of central South America, and S. m. parkesi Olson (= Oryzoborus m. magnirostris), from northeastern South America. Originally, S. m. parkesi was diagnosed as being larger than the Large-billed Seed-Finch, S. c. crassirostris (Gmelin, 1789), but proper comparisons with S. m. maximiliani, which is larger than S. c. crassirostris, were never performed. Here we provide a review of the taxonomic and nomenclatural history of S. maximiliani, reevaluate the validity and taxonomic status of the subspecies based on morphological characters, and significantly revise its geographic distribution. Analyses based on plumage patterns and a Principal Component Analysis of morphometric characters indicated that S. m. parkesi is most appropriately treated as a synonym of the nominate taxon, which results in a monotypic S. maximiliani comprising two disjunct populations. Further, we conducted systematic searches for S. maximiliani in Brazil, in an attempt to obtain natural history information. After more than 6,000 hours of fieldwork in 45 areas of potential and historical occurrence, S. maximiliani was located only in two sites, in marshy environments called veredas, confirming the critical conservation status of this species, at least in Brazil. We discuss the conservation potential for, and the problems involved with, captive breeding of S. maximiliani for reintroduction into the wild. 

Problems of compensative fisheries: increasing the adaptive potential of broad whitefish Coregonus nasus (Pallas) in early ontogenesis by weak magnetic fields. 1. Morphometric analysis

2020 ◽  
pp. 32-46
Author(s):  
Alexander Germanovich Selyukov ◽  
Ekaterina Vladimirovna Efremova ◽  
Svetlana Aleksandrovna Selyukova ◽  
Leonid Alexandrovich Shuman
Keyword(s):  
Magnetic Fields ◽  
Morphometric Analysis ◽  
Juvenile Fish ◽  
Morphological Characters ◽  
Control Treatment ◽  
Physical Factors ◽  
Morphometric Characters ◽  
Ob River ◽  
Biological Potential ◽  
Organ Systems

The article presents the results of a production experiment with the embryos of Coregonus nasus, delivered at the Sobsk fish hatchery (settlement Kharp, YaNAO). The plant is taking compensatory measures to restore the number of valuable species of whitefishes in the Ob river basin. The purpose of our study was to increase the biological potential of juvenile broad whitefish for their subsequent release to the Ob river. At the last stage of the embryonic period, the embryos were treated with ultra-weak pulsed magnetic fields for several days. In the postembryonic period, the control and experimental juveniles of broad whitefish were fixed for subsequent morphometric and cytological-histological analysis. After conducting a morphometric analysis, we found that already at the early stages of the postembryonic period, the experimental larvae and fry exceeded the control ones in most parameters. Later, these differences persisted. At the same time, the juveniles of the experimental batch showed, as a rule, less variability of morphological characters. Also, the weight of the experimental fry before release to the Ob significantly exceeded the weight of the control fry. We calculated the degree of correlation of morphometric characters in juvenile broad whitefish of both parties in the process of rearing and found that during the first month the correlation of most parameters in the experimental juveniles was lower than in the control. However, with further development, the degree of relationship between the parameters in juveniles in the experiment increased and reached it in the control. Later, the allometric growth of the experimental juveniles began, which caused a decrease in the connection between some characters. We are discussing the features of the development of experimental juvenile fish; activation of its natural mechanisms of autorehabilitation by using weak physical factors. We explain the reasons for the stable, but insignificant differences between the experimental fish fry over the control treatment with an ultra-weak pulsed magnetic field at the last stages of embryogenesis, when the main organ systems are already formed. We conclude that this approach is advisable, starting with fertilization and early embryogenesis.

scholarly journals Origin of the eastern brownsnake, Pseudonaja textilis (Dumeril, Bibron and Dumeril) (Serpentes: Elapidae: Hydrophiinae) in New Guinea: evidence of multiple dispersals from Australia, and comments on the status of Pseudonaja textilis pughi Hoser 2003

Zootaxa ◽  
2008 ◽  
Vol 1703 (1) ◽  
pp. 47 ◽  
Author(s):  
DAVID J. WILLIAMS ◽  
MARK O'SHEA ◽  
ROLAND L. DAGUERRE ◽  
CATHARINE E. POOK ◽  
WOLFGANG WÜSTER ◽  
...  
Keyword(s):  
Dna Sequences ◽  
Taxonomic Status ◽  
New Guinea ◽  
Physical Geography ◽  
Sea Level Changes ◽  
Migration Routes ◽  
Arnhem Land ◽  
The Status ◽  
The Subject ◽  
Western Migration

Pseudonaja textilis is a widespread and common snake in eastern parts of Australia, but its distribution in New Guinea is poorly understood, and the origin of the New Guinea populations and its timing have been the subject of much speculation. Phylogenetic analysis of mitochondrial DNA sequences from three New Guinea populations of P. textilis indicates that New Guinea was colonised from two independent eastern and western migration routes most likely in the Pleistocene. One dispersal event from northern Queensland led to the populations in eastern New Guinea (Milne Bay, Oro and Central Provinces, Papua New Guinea), whereas another, from Arnhem Land to central southern New Guinea, led to the populations from the Merauke area, Indonesian Papua. The results are consistent with the effects of Pleistocene sea level changes on the physical geography of Australasia, and are thus suggestive of a natural rather than anthropogenic origin of the New Guinea populations. The taxonomic status of the New Guinean populations is discussed.

Nomenclatural issues in the orchid bees (Hymenoptera: Apidae: Euglossina) and an updated catalogue

Zootaxa ◽  
2011 ◽  
Vol 3006 (1) ◽  
pp. 1 ◽  
Author(s):  
ANDRÉ NEMÉSIO ◽  
CLAUS RASMUSSEN
Keyword(s):  
Taxonomic Status ◽  
Orchid Bees ◽  
Orchid Bee ◽  
The Status ◽  
First Time ◽  
Subjective Synonym

The taxonomic status (or the taxonomic status of the onomatophores) of seven nomina are revised: Eulaema meriana (Olivier, 1789), Euglossa piliventris Guérin-Méneville, 1844, Exaerete appendiculata (Romand, 1849), Exaerete subcornuta (Romand, 1849), Eufriesea danielis (Schrottky, 1907), Euglossa fimbriata Moure, 1968, and Eufriesea yepezi (Moure, 2000). Lectotype is designated for Euglossa piliventris Guérin-Méneville, 1844. Neotypes are designated for Apis meriana Olivier, 1789 and Apis dimidiata Fabricius, 1793 based on the same specimen and A. dimidiata Fabricius, 1793 became an objective synonym of A. meriana Olivier, 1789. Chrysantheda subcornuta Romand, 1849 is shown to be a senior objective synonym of Chrysantheda appendiculata Romand, 1849 and their synonymy under Exaerete dentata (Linnaeus, 1758) is questioned and discussed. Eumorpha combinata danielis Schrottky, 1907 is confirmed as a junior subjective synonym of Eufriesea auriceps (Friese, 1899), but the status of its onomatophore is reconsidered. Moreover, a long overlooked Euglossa dentata var. maxima Romand, 1849, nom. nud. and Euplusia yepezi Moure, 2000, nom. nud. are discussed for the first time. Both nomina Euglossa fimbriata Moure, 1968 and Euglossa fimbriata Rebêlo & Moure, 1996are available, but the latter is permamently invalid as a junior primary homonym of the former. An updated catalogue of all orchid bee nomina is also provided.

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