Geographic distributions of homosporous ferns: does dispersal obscure evidence of vicariance?

2001 ◽  
Vol 28 (2) ◽  
pp. 263-270 ◽  
Author(s):  
P. G. Wolf ◽  
H. Schneider ◽  
T. A. Ranker
Keyword(s):  
Homosporous Ferns ◽  
Geographic Distributions

scholarly journals Implications of GNSS-Inferred Tropopause Altitude Associated with Terrestrial Gamma-Ray Flashes

2021 ◽  
Vol 13 (10) ◽  
pp. 1939
Author(s):  
Tao Xian ◽  
Gaopeng Lu ◽  
Hongbo Zhang ◽  
Yongping Wang ◽  
Shaolin Xiong ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Thermal Structure ◽  
Deep Convection ◽  
Caribbean Sea ◽  
Negative Bias ◽  
Upper Troposphere ◽  
Cold Anomaly ◽  
The Caribbean ◽  
Geographic Distributions

The thermal structure of the environmental atmosphere associated with Terrestrial Gamma-ray Flashes (TGFs) is investigated with the combined observations from several detectors (FERMI, RHESSI, and Insight-HXMT) and GNSS-RO (SAC-C, COSMIC, GRACE, TerraSAR-X, and MetOp-A). The geographic distributions of TGF-related tropopause altitude and climatology are similar. The regional TGF-related tropopause altitude in Africa and the Caribbean Sea is 0.1–0.4 km lower than the climatology, whereas that in Asia is 0.1–0.2 km higher. Most of the TGF-related tropopause altitudes are slightly higher than the climatology, while some of them have a slightly negative bias. The subtropical TGF-producing thunderstorms are warmer in the troposphere and have a colder and higher tropopause over land than the ocean. There is no significant land–ocean difference in the thermal structure for the tropical TGF-producing thunderstorms. The TGF-producing thunderstorms have a cold anomaly in the middle and upper troposphere and have stronger anomalies than the deep convection found in previous studies.

Explaining the geographic distributions of sexual and asexual populations

Nature ◽  
10.1038/36099 ◽  
1998 ◽  
Vol 391 (6670) ◽  
pp. 889-892 ◽  
Author(s):  
Joel R. Peck ◽  
Jonathan M. Yearsley ◽  
David Waxman
Keyword(s):  
Geographic Distributions ◽  
Asexual Populations

GENETIC LOAD AND THE MATING SYSTEM IN HOMOSPOROUS FERNS

Evolution ◽  
1987 ◽  
Vol 41 (6) ◽  
pp. 1282-1289 ◽  
Author(s):  
Philip W. Hedrick
Keyword(s):  
Mating System ◽  
Genetic Load ◽  
Homosporous Ferns

scholarly journals Current Knowledge of Leishmania Vectors in Mexico: How Geographic Distributions of Species Relate to Transmission Areas

2011 ◽  
Vol 85 (5) ◽  
pp. 839-846 ◽  
Author(s):  
Camila González ◽  
Sergio Ibáñez-Bernal ◽  
Ingeborg Becker-Fauser ◽  
Enrique Martínez-Meyer ◽  
Víctor Sánchez-Cordero ◽  
...  
Keyword(s):  
Current Knowledge ◽  
Geographic Distributions

scholarly journals Chironomus calligraphus Goeldi, 1905 and C. hawaiiensis Grimshaw, 1901 are sibling species

2021 ◽  
pp. 59-63
Author(s):  
Jon Martin
Keyword(s):  
Sibling Species ◽  
Molecular Data ◽  
Small Sample ◽  
Type Locality ◽  
Additional Material ◽  
Cytological Evidence ◽  
Coii Gene ◽  
Geographic Distributions

Although Spies et al.’s (2002) thorough analysis of a small sample of the then available specimens of Chironomus calligraphus Goeldi,1905 suggested two distinctly different haplotypes in the mitochondrial COII gene, the corresponding morphological and cytological evidence kept the authors from concluding that there were two species involved. Further obstacles were unusual aspects of the molecular data and the occurrence of both these haplotypes in samples from the Brazilian type locality by Fittkau (1965) from which he had fixed a neotype. This neotype is slide mounted and can no longer yield molecular data. The present author’s analysis of additional material, including the available BARCODE sequences, has confirmed the existence of two forms, perhaps consistent with those found in the COII analysis, and with largely overlapping geographic distributions. One of these forms occurs in Hawaii where it is morphologically indistinguishable from C. hawaiiensis Grimshaw, 1901. It is recommended to apply this name, which takes nomenclatural precedence to the form found in Hawaii, and the name C. calligraphus to the form found to be more common in Fittkau’s type-locality samples.

Characteristics of geographic distributions and route of infection for hepatitis B virus genotype D in Ehime area in western Japan

2007 ◽  
Vol 37 (4) ◽  
pp. 255-262 ◽  
Author(s):  
Kana Matsuura ◽  
Kojiro Michitaka ◽  
Kazuhiko Yamauchi ◽  
Seijin Nadano ◽  
Shinichi Okada ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Virus Genotype ◽  
Route Of Infection ◽  
B Virus ◽  
Western Japan ◽  
Geographic Distributions

Revision of the Australian Tephritini (Diptera : Tephritidae)

1996 ◽  
Vol 10 (2) ◽  
pp. 213 ◽  
Author(s):  
DE Hardy ◽  
RA I Drew
Keyword(s):  
New Species ◽  
Host Plants ◽  
New Genera ◽  
Geographic Distributions ◽  
First Time

The Australian fauna of Tephritini, a major tribe of the subfamily Tephritinae (Tephritidae), is revised for the first time; 23 genera and 77 species are treated. A further nine species are discussed but not named. Fourteen genera are revised and the following nine new genera described: Collessomyia, Cooronga, Hyalopeza, Liepana, Paraactinoptera, Parahyalopeza, Paraspathulina, Peneparoxyna and Quasicooronga. Twenty-four species are revised and the following 53 new species described: Campiglossa transversa, C. turneri, C. vaga, C. whitei, Collessomyia setiger, Cooronga mcalpinei, Dioxyna hyalina, Hyalopeza schneiderae, Liepana helichrysii, L. latifrons, Oedaspis apicalis, O. apiciclara, O. austrina, O . continua, O. gallicola, O. goodenia, O. mouldsi, O. olearia, O. perkinsi, O. semihyalina, O. serrata, O. trimaculata, O . whitei, Paraactinoptera collessi, Parahyalopeza bushi, Paraspathulina apicomacula, P. eremostigma, Paroxyna infrequens, Peneparoxyna minuta, Platensina trimaculata, Quasicooronga connecta, Q. disconnecta, Rhabdochaeta queenslandica, R. wedelia, Tephritis brunnea, T. bushi, T. distigmata, T. furcata, T. hesperia, T. pantosticta, T. phaeostigma, T. prolixa, T. protrusa, T. pumila, T. quasiprolixa, T. tasmaniae, T. trupanea, Trupanea bifida, T. heronensis, T. notata, T. prolata, T. pusilla and T. queenslandensis. Keys to genera and species are presented. Information is given on host plants and geographic distributions. The genera Chrysotrypanea Malloch and Oedaspoides Hendel are newly synonymised with Oedaspis Loew.

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