Sökning: "tribes"

Visar resultat 6 - 10 av 29 avhandlingar innehållade ordet tribes.

1. 6. Climbing the Trichoptera Tree : Investigations of Branches and Leaves

   Författare :Tobias Malm; Kjell Arne Johanson; Wolfram Mey; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Trichoptera; Leptoceridae; Symphitoneuria; Gracilipsodes; Triplectides; morphology; DNA; systematics; phylogeny; New Caledonia; Madagascar; new species; new genus; Systematics and phylogenetics; Systematik och fylogeni; Systematic Zoology; zoologisk systematik och evolutionsforskning;

   Sammanfattning : The Trichoptera (caddisflies) is the largest of the primary aquatic insect orders, currently including more than 13,500 species. With more than 100 species new to science described annually, the known caddisfly diversity is rapidly increasing. In the first four papers of this Thesis, a total of 22 species new to science are described. LÄS MER

3. 7. Systematics and Biogeography of Western Indian Ocean Region Rubiaceae : examples from Danaideae, Hymenodictyeae, and Naucleeae

   Författare :Åsa Krüger; Sylvain Razafimandimbison; Mary Endress; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; växtsystematik; Plant Systematics;

   Sammanfattning : This thesis focuses on the systematics and biogeography of the tribes Danaideae, Hymenodictyeae, and Naucleeae in the angiosperm family Rubiaceae (coffee family), with a special interest in the Western Indian Ocean region (WIOR). The levels of endemism in the WIOR are remarkably high and Madagascar is the largest island surrounded by three main archipelagos with islands of various age and size. LÄS MER

4. 8. The Ecstasy of Tragedy : An Ethnography of Hospice

   Författare :Oscar Wandery; Christian Maravelias; Carl Cederström; David Knights; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Organizational culture; hospice care; health care; affect research; ecstatic rituals; cultural reproduction; Business Administration; företagsekonomi;

   Sammanfattning : Culture is a double-edged sword in organizational research. Certain researchers consider culture the key to understanding organizations while others see it as a pseudo-scientific and faddish term. LÄS MER

5. 9. Keep it rolling : Straight-line orientation in South African ball-rolling dung beetles

   Författare :Lana Khaldy; Funktionell zoologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ball-rolling dung beetle; Orientation; Heading direction network; Compass; Weighting; Celestial cues; Sun; Polarised light;

   Sammanfattning : Representing a substantial range and variety in morphological and ecological niche, found on all continents of the globe (except for the Antarctic), the ball-rolling dung beetles provide an excellent model in which to study the heading direction network and the factors by which it is influenced. As soon as a ball-rolling dung beetle has located a fresh dung pile to feed on, it immediately starts shaping a piece of dung into a ball, rolling it away from the dung pat in as straight of a trajectory as the terrain allows. LÄS MER

7. 10. Phylogenetic Studies in the Lamiales with Special Focus on Scrophulariaceae and Stilbaceae

   Författare :Per Kornhall; Birgitta Bremer; Nigel Barker; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Bayesian inference; parsimony; phylogeny; Scrophulariaceae; Stilbaceae; taxonomy; Biologi; Biology; Biologi;

   Sammanfattning : This thesis deals with plants from the flowering plant order Lamiales, and especially the two families Scrophulariaceae and Stilbaceae. Both families have their main geographical distribution in southern Africa. The thesis presents phylogenies of Scrophulariaceae s. lat. LÄS MER