The Usambara Mountains, NE Tanzania: phytogeography of the vascular plant flora
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Stockholm u.a.
Almqvist & Wiksell
1991
|
| Schriftenreihe: | Uppsala Universitet: Acta Universitatis Upsaliensis / Symbolae botanicae Upsalienses
29,3 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Zugl.: Uppsala, Univ., Diss., 1991 |
| Beschreibung: | 234 S. Ill., graph. Darst., Kt. |
| ISBN: | 9155427529 |
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| 245 | 1 | 0 | |a The Usambara Mountains, NE Tanzania |b phytogeography of the vascular plant flora |c by Svein Terje Iversen |
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Datensatz im Suchindex
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| adam_text | Titel: The Usambara mountains, NE Tanzania
Autor: Iversen, Svein T
Jahr: 1991
CONTENTS
Abstract
Introduction............................................................................................................................................................................................................................................................1
Historical background..............................................................................................................................................................................................................................2
The pre-colonial era........................................................................................................................................................................................................................2
The German administration, 1891-1918..........................................................................................................................................................2
The British administration, 1918-1961..............................................................................................................................................................3
Independence, 1961-......................................................................................................................................................................................................................4
Botanical research history of the Usambaras......................................................................................................................................................9
Physical environment..............................................................................................................................................................................................................................12
Geography......................................................................................................................................................................................................................................................12
Geology..............................................................................................................................................................................................................................................................14
Pedology............................................................................................................................................................................................................................................................15
Climate................................................................................................................................................................................................................................................................16
Effects of deforestation on precipitation..........................................................................................................................................................19
Vegetation..................................................................................................................................................................................................................................................................20
Forests..................................................................................................................................................................................................................................................................21
Woodlands......................................................................................................................................................................................................................................................24
Grasslands......................................................................................................................................................................................................................................................25
Induced vegetation............................................................................................................................................................................................................................27
Forest reserves of the Usambaras..........................................................................................................................................................................................30
Phytogeographical background................................................................................................................................................................................................33
Early history, terminology and definitions....................................................................................................................................................33
Schools and hypotheses in phytogeography................................................................................................................................................34
Land-bridges or sunken continents................................................................................................................................................................35
Continental drift..........................................................................................................................................................................................................................35
Dispersal................................................................................................................................................................................................................................................39
Croizat s vicariance phytogeography..........................................................................................................................................................41
Cladistic methods ..................................................................................................................................................................................................................42
African Quaternary history..............................................................................................................................................................................................................44
The significance of climatic change versus long-range dispersal to the
distribution of forest taxa in Africa..........................................................................................................................................................................46
Phytogeographical division of Africa..............................................................................................................................................................................50
Check-list preparation, material and methods....................................................................................................................................................58
Other upland tropical African phytogeographical studies................................................................................................................63
Phytogeographical analyses, results and discussions..............................................................................................................................67
Families..............................................................................................................................................................................................................................................................67
Genera..................................................................................................................................................................................................................................................................69
Species, including infraspecific taxa......................................................................................................................................................................77
Growth-forms..................................................................................................................................................................................................................................78
Altitudinal classification................................................................................................................................................................................................78
Ecological classification................................................................................................................................................................................................78
Phytogeographical classification......................................................................................................................................................................80
Phytogeographical analysis of the indigenous forest flora of the Usambara Mts....................84
Discussion............................................................................................................................................................................................................................................95
Cosmopolitan and Pantropical taxa....................................................................................................................................................95
Palaeotropical taxa........................................................................................................................................................................................................95
Disjunctions Africa - America....................................................................................................................................................................95
Disjunctions Africa - Temperate areas..........................................................................................................................................96
Wide and disjunct African taxa, particularly links with the
Guineo-Congolian area..................................................................................................................................................................................97
Disjunctions E Africa - Madagascar..................................................................................................................................................98
The Somalia - Masai and the Zambezian element........................................................................................................99
The Zanzibar - Inhambane element....................................................................................................................................................100
The Afromontane element................................................................................................................................................................................109
Afroalpine taxa in the Usambara flora..........................................................................................................................................120
Endemic taxa in the Usambaras................................................................................................................................................................121
Conclusions............................................................................................................................................................................................................................................................130
Acknowledgements....................................................................................................................................................................................................................................134
References................................................................................................................................................................................................................................................................136
Appendix: Check-list, vascular plants of the Usambara Mountains................................................................................152
|
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| id | DE-604.BV008063434 |
| illustrated | Illustrated |
| indexdate | 2024-07-09T17:13:44Z |
| institution | BVB |
| isbn | 9155427529 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-005306267 |
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| physical | 234 S. Ill., graph. Darst., Kt. |
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| series2 | Uppsala Universitet: Acta Universitatis Upsaliensis / Symbolae botanicae Upsalienses |
| spelling | Iversen, Svein T. Verfasser aut The Usambara Mountains, NE Tanzania phytogeography of the vascular plant flora by Svein Terje Iversen Stockholm u.a. Almqvist & Wiksell 1991 234 S. Ill., graph. Darst., Kt. txt rdacontent n rdamedia nc rdacarrier Uppsala Universitet: Acta Universitatis Upsaliensis / Symbolae botanicae Upsalienses 29,3 Zugl.: Uppsala, Univ., Diss., 1991 Gefäßpflanzen (DE-588)4019654-9 gnd rswk-swf Usambara Mountains (DE-588)4062197-2 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Usambara Mountains (DE-588)4062197-2 g Gefäßpflanzen (DE-588)4019654-9 s DE-604 Symbolae botanicae Upsalienses Uppsala Universitet: Acta Universitatis Upsaliensis 29,3 (DE-604)BV000015656 29,3 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=005306267&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Iversen, Svein T. The Usambara Mountains, NE Tanzania phytogeography of the vascular plant flora Gefäßpflanzen (DE-588)4019654-9 gnd |
| subject_GND | (DE-588)4019654-9 (DE-588)4062197-2 (DE-588)4113937-9 |
| title | The Usambara Mountains, NE Tanzania phytogeography of the vascular plant flora |
| title_auth | The Usambara Mountains, NE Tanzania phytogeography of the vascular plant flora |
| title_exact_search | The Usambara Mountains, NE Tanzania phytogeography of the vascular plant flora |
| title_full | The Usambara Mountains, NE Tanzania phytogeography of the vascular plant flora by Svein Terje Iversen |
| title_fullStr | The Usambara Mountains, NE Tanzania phytogeography of the vascular plant flora by Svein Terje Iversen |
| title_full_unstemmed | The Usambara Mountains, NE Tanzania phytogeography of the vascular plant flora by Svein Terje Iversen |
| title_short | The Usambara Mountains, NE Tanzania |
| title_sort | the usambara mountains ne tanzania phytogeography of the vascular plant flora |
| title_sub | phytogeography of the vascular plant flora |
| topic | Gefäßpflanzen (DE-588)4019654-9 gnd |
| topic_facet | Gefäßpflanzen Usambara Mountains Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=005306267&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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