Multivariate analysis of morphological variation in enset (Ensete ventricosum (Welw.) Cheesman) reveals regional and clinal variation in germplasm from south and south western Ethiopia

AbstractThe amphibian fauna of Sichuan Province, China, is remarkable for the large number of species of pelobatid frogs, of which species of Oreolalax form a large portion. We have collected larvae of five species of Oreolalax on Mt. Emei, Sichuan, four of these five at a second locality 40 km from Mt. Emei, and larvae of two additional species at a locality 200 km S of Mt. Emei. These tadpoles are very similar to one another morphologically, a conclusion supported by multivariate analysis. We give diagnostic descriptions and a key for the identification of these seven larval forms. All tadpoles of Oreolalax have lotic habits, and the seven species in our study live in small to medium-sized streams (maximum width 8 m). These species show only moderate ecological segregation in terms of stream size and microhabitat type.

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Determinants of Market Participation of Enset (Ensete Ventricosum) producers: The case of Chena district, Kaffa zone, South western Ethiopia

Current Investigations in Agriculture and Current Research ◽

10.32474/ciacr.2020.08.000298 ◽

2020 ◽

Vol 8 (5) ◽

Author(s):

Ejigu Mulatu

Keyword(s):

Market Participation ◽

Ensete Ventricosum ◽

Western Ethiopia

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Morphological Variation of Dioon (Zamiaceae) from the Pacific Slope of Mexico Using a Multivariate Analysis

Proceedings of Cycad 2005: The 7th International Conference on Cycad Biology ◽

10.21135/893274900.033 ◽

2007 ◽

Author(s):

Georgina Vargas Amado ◽

Jorge Alberto Pérez de la Rosa ◽

José Pablo Torres Morán ◽

Waldina Patricia Reyes Velázquez

Keyword(s):

Multivariate Analysis ◽

Morphological Variation ◽

The Pacific ◽

Pacific Slope

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Two new species of pitviper of the genus Cryptelytrops Cope 1860 (Squamata: Viperidae: Crotalinae) from Southeast Asia

Zootaxa ◽

10.11646/zootaxa.2757.1.1 ◽

2011 ◽

Vol 2757 (1) ◽

pp. 1 ◽

Cited By ~ 4

Author(s):

ANITA MALHOTRA ◽

ROGER S. THORPE ◽

MRINALINI _ ◽

BRYAN L. STUART

Keyword(s):

Multivariate Analysis ◽

New Species ◽

Species Diversity ◽

Southeast Asia ◽

Morphological Variation ◽

Northern Thailand ◽

Southern Vietnam ◽

Two New Species

We describe two new species of green pitviper from Southeast Asia that are morphologically similar to Cryptelytrops macrops, but can be distinguished from that species by genetic means, multivariate analysis of morphology and some aspects of coloration. Cryptelytrops cardamomensis sp. nov., is described from southeastern Thailand and the Cardamom Mountains of southwestern Cambodia. Cryptelytrops rubeus sp. nov. has been recorded from southern Vietnam and eastern Cambodia. These species have previously been confused with C. macrops, hence we also present here a redescription of this species, whose range is now restricted to Thailand, southern and central Laos, and northeastern Cambodia. All three species are present in Cambodia, but have disjunct ranges corresponding to three separate highland regions in southwestern (Cardamom Mountains), northeastern (western edge of the Kontum Plateau) and eastern (low elevation hills on the western edge of the Langbian Plateau) Cambodia for C. cardamomensis, C. macrops and C. rubeus respectively. However, there is still considerable morphological variation between geographically separated populations of C. macrops s.s., and greater sampling in southern and northern Thailand in particular may be required before the species diversity of this group is fully clarified.

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Taxonomy of the lesser jerboa Jaculus jaculus (Dipodidae, Rodentia) based on allozymic and morphological variation

Current Zoology ◽

10.1093/czoolo/56.4.421 ◽

2010 ◽

Vol 56 (4) ◽

pp. 421-431 ◽

Cited By ~ 1

Author(s):

Abderraouf Ben Faleh ◽

Abdelwaheb Ben Othmen ◽

Khaled Said

Keyword(s):

Phylogenetic Analysis ◽

Multivariate Analysis ◽

Genetic Distance ◽

North Africa ◽

Morphometric Analysis ◽

Morphological Variation ◽

Taxonomic Status ◽

Sympatric Species ◽

Restricted Area ◽

Meeting Point

Abstract The lesser Egyptian jerboa Jaculus jaculus, is a member of the subfamily Dipodinae, known to have a number of subspecies. Previous studies of J. jaculus from North Africa found various morphological forms of unknown taxonomic status, which are frequently grouped into two taxa: J. jaculus and J. deserti. We assessed the taxonomic status of this taxon in Tunisia using allozymic (phylogenetic analysis of 23 genetic loci encoding 16 enzymatic proteins) and morphological (multivariate analysis of 13 craniodental characters) analyses of 136 J. jaculus specimens collected from seven localities within its distribution range. Allozymic analysis clearly indicated the existence of two distinct groups of J. jaculus, with a mean genetic distance (D) value of 0.99 and FST=0.52. Individuals within the two groups did not show any obvious geographical structuration, even within the Matmata locality which represents the meeting point for the two groups where they were found in sympatry. Additionally, morphometric analysis of 13 craniodental characters was clearly separated the two groups. These results were obtained over a very restricted area of the total distribution of J. jaculus and strongly suggest the occurrence of two separate and often sympatric species within the currently accepted J. jaculus in Tunisia: J. jaculus and J. deserti .

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Morphological Variation in the Dentition and Skull of the Australian Ghost Bat, Macroderma-Gigas (Microchiroptera, Megadermatidae)

Australian Journal of Zoology ◽

10.1071/zo9900263 ◽

1990 ◽

Vol 38 (3) ◽

pp. 263 ◽

Cited By ~ 6

Author(s):

S Hand ◽

A York

Keyword(s):

Principal Components Analysis ◽

Principal Components ◽

Morphological Variation ◽

Univariate Analysis ◽

South Australia ◽

Clinal Variation ◽

Clear Cut ◽

Cranial Measurements ◽

Southern Central ◽

Components Analysis

Morphological variation in the dentition and some cranial characters of the Australian ghost bat, Macroderma gigas, is reviewed by means of univariate and multivariate analyses. Specimens examined are drawn from existing populations across northern Australia; also included for parts of this study are mummified remains from southern central South Australia and late Pleistocene subfossil specimens from south-western Western Australia. No clear-cut geographic pattern in morphological variation in M. gigas is indicated by multivariate anlysis (i.e. principal components analysis), although there is some evidence for clinal variation from univariate analysis (i.e. Scheffe's multiple-comparions procedure). Northern Australian ghost bats (with the exception of north-eastern Australian indiv~duals) tend to be smaller than their southern counterparts. Sexual dimorphism appears to be low. Independent patterns of covariation among characters are extracted by principal components analysis: cheek tooth widths cluster separately from lengths; lengths and widths of the same teeth cluster separately from those of occluding teeth; and cranial measurements cluster separately from tooth measurements. Patterns in the data suggest that the number of characters needed to be examined in future morphometric studies of the vulnerable ghost bat can be significantly reduced.

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