Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Polyphyletic group"”.
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On the phylogenetic relationship of South African species of Cladophora (Chlorophyta) based on the 26S (LSU) gene region
… several clades within Cladophora; Clad. capensis grouping with Clad. isaacii, Clad sericea and Clad. dalmatica; Cheatomorpha forming a polyphyletic group within Cladophora; and Clad. vagabunda and Clad. laetevirens grouping with the estuarine species. As no Clad. vagabunda or Clad. laetevirens are …
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Phylogeny of parasitic wasps of Torymidae (Hymenoptera: Chalcidoidea) and evolution of their life-strategies
… However, family Torymidae was considered as polyphyletic group with the subfamily Megastigminae unrelated to the subfamily Toryminae (paper I). Monophyly of Torymidae was corroborated in another study (paper II) focused on molecular and morphological characters. We used a web-based, …
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Dry and back again: characterization of desiccation-associated differentiation of leaf tissues in Craterostigma pumilum Hochst
Resurrection plants are a polyphyletic group of angiosperms which display true desiccation tolerance - the ability to survive near complete loss of cellular water for extended periods, while recovering metabolic competence upon watering. This is achieved by employing tailored protection behaviours …
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A comparative study of the leaf epidermis of forty-two native California ferns
… the family Polypodiaceae (Wagner, 1959). This polyphyletic group (Eame, 1936) has been divided by several prominet workers into many families. Ching (1940) recognized thirty-two, Holttum (1947) five, and Copeland (1947) nine families. Munz and Keck (1959) divided the old famliy Polypodiaceae, …
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Composition, spatial abundance, co-occurrence and host preference of mistletoes in the Central highland savanna of Namibia
… plants, commonly called mistletoes, are a polyphyletic group of organisms with a common evolutionary ancestor. This study was aimed at determining composition, spatial abundance within hosts, co-occurrence and host preference of mistletoes in the central highland savannas. The study site …
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Comparative biomechanics and functional morphology of latch-mediated spring actuated mandibles in ants
… at similar scales. One of the most diverse group of animals to utilize LaMSA mechanisms are the trap-jaw ants, a polyphyletic group of ants (Hymenoptera: Formicidae) which use spring powered mandibles to rapidly capture or incapacitate prey. Trap-jaws have evolved independently more than …