Phylogeographic Structure and Color Pattern Variation among Populations of Plethodon albagula on the Edwards Plateau of Central Texas

A herpetological survey of the Indawgyi Wildlife Sanctuary in Kachin State, Myanmar resulted in the discovery of a new species of Cyrtodactylus Gray along the eastern watershed of the Mokso Mountains. An integrative taxonomic analysis based on the mitochondrial ND2 gene, morphology, and color pattern recovered this new species, Cyrtodactylus mombergi sp. nov., as the sister taxon to an undescribed species from Miao, Arunachal Pradesh, India. Bayesian and maximum likelihood analyses recovered notable genetically divergent (4.7%) phylogeographic structure between northern and southern populations of C. mombergi sp. nov. across only 14 km of continuous habitat. Conversely, genetic divergence did not exceed 9.2% between C. mombergi sp. nov. and the undescribed species from Miao from across 355 km of habitat. Cyrtodactylus mombergi sp. nov. belongs to a well-supported, mitochondrial clade of 18 other species which now compose an expanded and redefined C. gansi group. Cyrtodactylus mombergi sp. nov. is only the third species of Bent-toed Gecko reported from Kachin State and indicates that additional herpetological surveys are needed in unexplored forested areas.

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Experimental Burned Rock Studies on the Edwards Plateau: A View from Camp Bullis, Texas

North American Archaeologist ◽

10.2190/9j4u-1m73-1wt4-ad9n ◽

2005 ◽

Vol 26 (3) ◽

pp. 289-329 ◽

Cited By ~ 6

Author(s):

Peter Pagoulatos

Keyword(s):

Experimental Study ◽

Color Change ◽

Short Term ◽

Edwards Plateau ◽

Thermal Alteration ◽

Central Texas ◽

Quantitative Analyses ◽

Earth Oven

This article presents an experimental study concerning the use of thermally altered stone, commonly referred to as fire-cracked, or burned rock. A series of controlled cooking experiments were initiated as limestone cobbles were placed within a prepared earth-oven and re-heated; this type of earth-oven is similar to those found within prehistoric burned rock mounds on the Edwards Plateau of central Texas. Twelve experiments were conducted in this study, as four different sets of cobble assemblages were each re-heated three times, at six, twelve, twenty-four, and forty-eight hour intervals. These heated limestone cobbles were then analyzed for thermal alteration characteristics such as color change, cracking, and spalling, for comparative purposes. Quantitative analyses were then applied to the data in order to establish whether different patterns of thermal alteration exist dependent upon short-term and long-term re-uses.

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Geographic structure of genetic variation in the Parachute Gecko Ptychozoon lionotum Annandale, 1905 across Indochina and Sundaland with descriptions of three new species

Zootaxa ◽

10.11646/zootaxa.4638.2.1 ◽

2019 ◽

Vol 4638 (2) ◽

pp. 151-198 ◽

Cited By ~ 4

Author(s):

L. LEE GRISMER ◽

PERRY L. JR. WOOD ◽

JESSE L. GRISMER ◽

EVAN S. H. QUAH ◽

NEANG THY ◽

...

Keyword(s):

New Species ◽

Sequence Divergence ◽

Color Pattern ◽

Sensu Stricto ◽

Peninsular Malaysia ◽

Phylogeographic Structure ◽

Geographic Structure ◽

Southern Thailand ◽

Taxonomic Changes ◽

Three New Species

An integrative taxonomic analysis of the Ptychozoon lionotum group across its range in Indochina and Sundaland recovers P. lionotum sensu lato Annandale, 1905 as paraphyletic with respect to P. popaense Grismer, Wood, Thura, Grismer, Brown, & Stuart, 2018a and composed of four allopatric, genetically divergent, ND2 mitochondrial lineages. Multivariate and univariate analyses of continuous and discrete morphological and color pattern characters statistically and discretely diagnose each lineage from one another and together, with maximum likelihood and Bayesian inference analyses, provide the foundation for the recognition of each lineage as a new species—hypotheses corroborated with a Generalized Mixed Yule Coalescent species delimitation analysis. Ptychozoon cicakterbang sp. nov. ranges throughout Peninsular Malaysia to Pulau Natuna Besar, Indonesia; P. kabkaebin sp. nov. is endemic to northern and central Laos; and P. tokehos sp. nov. ranges from southern Thailand south of the Isthmus of Kra northward to Chiang Mai, fringing the Chao Phraya Basin and ranging southward through Cambodia to southern Vietnam. Ptychozoon lionotum sensu stricto ranges from northwestern Laos through southern Myanmar to eastern India. The phylogeographic structure within each species varies considerably with P. lionotum s.s. showing no genetic divergence across its 1,100 km range compared to P. cicakterbang sp. nov. showing upwards of 8.2% sequence divergence between syntopic individuals. Significant phylogeographic structure exists within P. tokehos sp. nov. and increased sampling throughout Thailand may require additional taxonomic changes within this species.

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Breeding Behaviour and Oviposition in Hetaerina americana (Fabricius) and H. titia (Drury) (Odonata: Agriidae)

The Canadian Entomologist ◽

10.4039/ent93260-4 ◽

1961 ◽

Vol 93 (4) ◽

pp. 260-266 ◽

Cited By ~ 12

Author(s):

Clifford Johnson

Keyword(s):

Species Recognition ◽

Color Pattern ◽

Sexually Dimorphic ◽

Body Coloration ◽

Ischnura Elegans ◽

Wing Patterns ◽

Central Texas ◽

Abdominal Appendages ◽

Calopteryx Splendens ◽

Wing Coloration

The objective of this study is to describe the copulatory and ovipositional behaviour of Hetaerina americana and H. titia, and to depict any differences in such behaviour as may exist between these two species. It is quite important in such studies to understand the mechanisms which assure conspecific mating. Both americana and titia are found breeding together on many of the streams of central Texas. Williamson (1906) pointed out that species in which the abdominal appendages were very similar often had sexually dimorphic and/or specifically distinct wing coloration, while species with clear wings had quite distinct abdominal appendages. These different wing patterns were suggested as functioning in species recognition for conspecific mating. Buchholtz (1951, 1955) experimentally verified that the females of Calopteryx splendens recognize and respond to males of their own species through a set of optical stimuli including the color pattern of the wing. Loibl (1958) and Krieger and Krieger-Lobl (1958) experimentally demonstrated that in Lestes dryas, L. sponsa, Ischnura elegans and I. pumila, all of which have clear, colorless wings, the species recognition factors are the shape of the abdominal appendages and body coloration. Williamson's early inferences appear to have been well documented.

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