Influence of pollination and seed dispersal on the genetic population structure of two Commiphora species in Madagascar and South Africa [Elektronische Ressource] / Friederike A. Voigt

Fvoigt

Description

“Influence of pollination and seed dispersal on the genetic population structure of two Commiphora species in Madagascar and South Africa” Dissertation zur Erlangung des Grades Doktor der Naturwissenschaften Am Fachbereich Biologie der Johannes Gutenberg-Universität in Mainz Friederike A. Voigt geb. am 03.05.1974 in Karlsruhe Mainz, den 01.03.2005 Kapitel 1 dieser Arbeit wurde veröffentlicht bei Cambridge University Press unter: Voigt, F.A., S. Jung, N. Farwig and K. Böhning-Gaese (2005) Low fruit set in a dioecious tree: pollination ecology of Commiphora harveyi in South Africa. Journal of Tropical Ecology 21. …dedicated to the arofys and the paperbarks and the mysterious beauty of tropical forests. CONTENTS 1 ABSTRACT OF THE THESIS 1 2 GENERAL INTRODUCTION 3 2.1 POLLINATION 3 2.2 PN AND SEED DISPERSAL AND THEIR CONSEQUENCES FOR THE GENETIC STRUCTURE OF PLANT POPULATIONS 4 2.3 BACKGROUND OF THE THESIS 5 2.4 AIMS OF THE THESIS 6 3 LOW FRUIT SET IN A DIOECIOUS TREE: POLLINATION ECOLOGY OF COMMIPHORA HARVEYI IN SOUTH AFRICA 9 3.1 INTRODUCTION 9 3.2 METHODS 10 3.2.1 STUDY SITE 10 3.2.2 STUDY SPECIES 11 3.2.3 FLORAL DISPLAY 3.2.4 FLOWER VISITORS 12 3.2.5 POLLINATION EXPERIMENTS AND FRUIT SET 13 3.2.6 COMPARISON WITH C. GUILLAUMINII 14 3.3 RESULTS 14 3.3.1 FLORAL DISPLAY 15 3.3.2 FLOWER VISITORS 3.3.3 VISITATION RATES 15 3.3.4 DAILY PATTERN 18 3.3.

Informations

• Publié par: johannes_gutenberg-universitat_mainz
• Publié le: 01 janvier 2005
• Nombre de lectures: 33
• Langue: English

Extrait



 

Influence of pollination and seed dispersal on the genetic population structure of twoCommiphoraspecies in Madagascar and South Africa   Dissertation zur Erlangung des Grades Doktor der Naturwissenschaften  Am Fachbereich Biologie der Johannes Gutenberg-Universität in Mainz   Friederike A. Voigt geb. am 03.05.1974 in Karlsruhe  Mainz, den 01.03.2005





Kapitel 1 dieser Arbeit wurde veröffentlicht bei Cambridge University Press unter:

Voigt, F.A.,S. Jung, N. Farwig and K. Böhning-Gaese (2005) Low fruit set in a dioecious

tree: pollination ecology ofCommiphora harveyi in South Africa.Journal of Tropical

Ecology21.































dedicated to the arofys and the paperbarks and the mysterious beauty of tropical

forests.







CONTENTS

1  ABSTRACT OF THE THESIS

2 GENERAL INTRODUCTION

2.1  P OLLINATION  2.2  P OLLINATION AND SEED DISPERSAL AND THEIR CONSEQUENCES FOR THE GENETIC STRUCTURE OF PLANT POPULATIONS  2.3  B ACKGROUND OF THE THESIS  2.4  A IMS OF THE THESIS 

3  LOW FRUIT SET IN A DIOECIOUS TREE: POLLINATION ECOLOGY OF COMMIPHORA HARVEYIIN SOUTH AFRICA

3.1  I NTRODUCTION  3.2  M ETHODS  3.2.1  S TUDY SITE  3.2.2  S TUDY SPECIES  3.2.3  F LORAL DISPLAY  3.2.4  F LOWER VISITORS  3.2.5  P OLLINATION EXPERIMENTS AND FRUIT SET  3.2.6  C OMPARISON WITH C. GUILLAUMINII  3.3  R ESULTS  3.3.1  F LORAL DISPLAY  3.3.2  F LOWER VISITORS 



1 

3 

3  4  5  6 

9 

9  10  10  11  11  12  13  14  14  15  15 

3.3.3  V ISITATION RATES  3.3.4  D AILY PATTERN  3.3.5  S EASONAL PATTERN  3.3.6  F RUIT SET  3.3.7  C OMPARISON WITH C. GUILLAUMINII  3.4  D ISCUSSION  3.5  S UMMARY 



15  18  18  20  20  21  25 

4  DOES SEED DISPERSAL MATTER?  COMPARATIVE POPULATION GENETICS OF TWO CONGENERIC TROPICAL TREES 27 

4.1  I NTRODUCTION  4.2  M ETHODS  4.2.1  S PECIES STUDIED  4.2.2  P LANT MATERIALS AND SAMPLE SITES  4.2.3  DNA EXTRACTION AND QUANTIFICATION  4.2.4  AFLP ANALYSES  4.2.5  D ATA ANALYSIS  4.3  R ESULTS  4.3.1  D ESCRIPTIVE POPULATION GENETICS  4.3.2  L ARGE SPATIAL SCALE  4.3.3  M EDIUM AND SMALL SPATIAL SCALE  4.4  D ISCUSSION  4.4.1  D ESCRIPTIVE POPULATION GENETICS  4.4.2  L ARGE SPATIAL SCALE  4.4.3  M EDIUM AND SMALL SPATIAL SCALE  4.5  S UMMARY 



27  28  28  29  31  31  32  34  34  35  38  42  42  42  44  46 