A | B | C | D | E | F | G | H | CH | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
A phytochorion, in phytogeography, is a geographic area with a relatively uniform composition of plant species. Adjacent phytochoria do not usually have a sharp boundary, but rather a soft one, a transitional area in which many species from both regions overlap. The region of overlap is called a vegetation tension zone.
In traditional schemes, areas in phytogeography are classified hierarchically, according to the presence of endemic families, genera or species, e.g., in floral (or floristic, phytogeographic) zones and regions,[1] or also in kingdoms, regions and provinces,[2] sometimes including the categories empire and domain. However, some authors prefer not to rank areas, referring to them simply as "areas", "regions" (in a non hierarchical sense) or "phytochoria".[3]
Systems used to classify vegetation can be divided in two major groups: those that use physiognomic-environmental parameters and characteristics and those that are based on floristic (i.e. shared genera and species) relationships.[4] Phytochoria are defined by their plant taxonomic composition, while other schemes of regionalization (e.g., vegetation type, physiognomy, plant formations, biomes) may variably take in account, depending on the author, the apparent characteristics of a community (the dominant life-form), environment characteristics, the fauna associated, anthropic factors or political-conservationist issues.[5]
Explanation
Several systems of classifying geographic areas where plants grow have been devised. Most systems are organized hierarchically, with the largest units subdivided into smaller geographic areas, which are made up of smaller floristic communities, and so on. Phytochoria are defined as areas possessing a large number of endemic taxa. Floristic kingdoms are characterized by a high degree of family endemism, floristic regions by a high degree of generic endemism, and floristic provinces by a high degree of species endemism. Systems of phytochoria have both significant similarities and differences with zoogeographic provinces, which follow the composition of mammal families, and with biogeographical provinces or terrestrial ecoregions, which take into account both plant and animal species.
The term "phytochorion" (Werger & van Gils, 1976)[6] is especially associated with the classifications according to the methodology of Josias Braun-Blanquet, which is tied to the presence or absence of particular species,[7] mainly in Africa.[8]
Taxonomic databases tend to be organized in ways which approximate floristic provinces, but which are more closely aligned to political boundaries, for example according to the World Geographical Scheme for Recording Plant Distributions.
Early schemes
In the late 19th century, Adolf Engler (1844-1930) was the first to make a world map with the limits of distribution of floras, with four major floral regions (realms).[9][10] His Syllabus der Pflanzenfamilien, from the third edition (1903) onwards, also included a sketch of the division of the earth into floral regions.[11]
Other important early works on floristics includes Augustin de Candolle (1820),[12] Schouw (1823),[13] Alphonse de Candolle (1855),[14] Drude (1890),[1] Diels (1908),[15] and Rikli (1913).[16]
Good (1947) regionalization
![](http://upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Florenreiche.jpg/300px-Florenreiche.jpg)
Botanist Ronald Good (1947) identified six floristic kingdoms (Boreal or Holarctic, Neotropical, Paleotropical, South African, Australian, and Antarctic), the largest natural units he determined for flowering plants. Good's six kingdoms are subdivided into smaller units, called regions and provinces. The Paleotropical kingdom is divided into three subkingdoms, which are each subdivided into floristic regions. Each of the other five kingdoms are subdivided directly into regions. There are a total of 37 floristic regions. Almost all regions are further subdivided into floristic provinces.[17]
Takhtajan (1978, 1986) regionalization
Armen Takhtajan (1978, 1986), in a widely used scheme that builds on Good's work, identified thirty-five floristic regions, each of which is subdivided into floristic provinces, of which there are 152 in all.[18][19][20][21]
Holarctic Kingdom
I. Circumboreal region
- 1 Arctic province
- 2 Atlantic Europe province
- 3 Central Europe province
- 4 Illyria or Balkan province
- 5 Pontus Euxinus province
- 6 Caucasus province
- 7 Eastern Europe province
- 8 Northern Europe province
- 9 Western Siberia province
- 10 Altai-Sayan province
- 11 Central Siberia province
- 12 Transbaikalia province
- 13 Northeastern Siberia province
- 14 Okhotsk-Kamchatka province
- 15 Canada incl. Great Lakes province
II. Eastern Asiatic region
- 16 Manchuria province
- 17 Sakhalin-Hokkaidō province
- 18 Japan-Korea province
- 19 Volcano-Bonin province
- 20 Ryūkyū or Tokara-Okinawa province
- 21 Taiwan province
- 22 Northern China province
- 23 Central China province
- 24 Southeastern China province
- 25 Sikang-Yuennan province
- 26 Northern Burma province
- 27 Eastern Himalaya province
- 28 Khasi-Manipur province
III. North American Atlantic region
- 29 Appalachian province (forested areas extending east to include the piedmont and west to the start of the prairies)
- 30 Atlantic and Gulf Coastal Plain province
- 31 North American Prairies province
IV. Rocky Mountain region
- 32 Vancouverian province
- 33 Rocky Mountains province
V. Macaronesian region
- 34 Azores province
- 35 Madeira province
- 36 Canaries province
- 37 Cape Verde province
VI. Mediterranean region
- 38 Southern Morocco province
- 39 Southwestern Mediterranean province
- 40 South Mediterranean province
- 41 Iberia province
- 42 Baleares province
- 43 Liguria-Tyrrhenia province
- 44 Adriatic province
- 45 East Mediterranean province
- 46 Crimea-Novorossijsk province
VII. Saharo-Arabian region
VIII. Irano-Turanian region
8A. Western Asiatic subregion
- 49 Mesopotamia province
- 50 Central Anatolia province
- 51 Armenia-Iran province
- 52 Hyrcania province
- 53 Turania or Aralo-Caspia province
- 54 Turkestan province
- 55 Northern Baluchistan province
- 56 Western Himalaya province
8B. Central Asiatic subregion
- 57 Central Tien Shan province
- 58 Dzungaria-Tien Shan province
- 59 Mongolia province
- 60 Tibet province
IX. Madrean Region
- 61 Great Basin province
- 62 Californian province
- 63 Sonoran province
- 64 Mexican Highlands province
Paleotropical Kingdom
X. Guineo-Congolian region
- 65 Upper Guinean forests province
- 66 Nigeria-Cameroon province
- 67 Congo province
XI. Usambara-Zululand region
- 68 Zanzibar-Inhambane province
- 69 Tongoland-Pondoland province
XII. Sudano-Zambezian region
12A. Zambezian subregion
- 70 Zambezi province
12B. Sahelo–Sudanian subregion
12C. Eritreo–Arabian subregion
- 73 Somalia-Ethiopia province
- 74 South Arabia province
- 75 Socotra province
12C. Omano-Sindian subregion
- 76 Oman province
- 77 South Iran province
- 78 Sindia province
XIII. Karoo-Namib regionedit
- 79 Namibia province
- 80 Namaland province
- 81 Western Cape province
- 82 Karoo province
XIV. St. Helena and Ascension regionedit
- 83 St. Helena and Ascension province
XV. Madagascan regionedit
- 84 Eastern Madagascar province
- 85 Western Madagascar province
- 86 Southern and Southwestern Madagascar province
- 87 Comoro province
- 88 Mascarenes province
- 89 Seychelles province
XVI. Indian regionedit
- 90 Ceylon (Sri Lanka) province
- 91 Malabar province
- 92 Deccan province
- 93 Upper Gangetic Plain province
- 94 Bengal province
XVII. Indochinese regionedit
- 95 South Burma province
- 96 Andamans province
- 97 South China province
- 98 Thailand province
- 99 North Indochina province
- 100 Annam province
- 101 South Indochina province
XVIII. Malesian regionedit
18A. Malesian subregionedit
- 102 Malaya province
- 103 Borneo province
- 104 Philippines province
- 105 Sumatra province
- 106 Java province
18B. Papuan subregionedit
- 107 Celebes province
- 108 Moluccas and West New Guinea province
- 109 Papua province
- 110 Bismarck Archipelago province
XIX. Fijian regionedit
- 111 New Hebrides province
- 112 Fiji province
XX. Polynesian regionedit
- 113 Micronesia province
- 114 Polynesia province
XXI. Hawaiian regionedit
- 115 Hawaii province
XXII. Neocaledonian regionedit
- 116 New Caledonia province
Neotropical Kingdomedit
XXIII. Caribbean regionedit
Zdroj:https://en.wikipedia.org?pojem=Floristic_kingdomText je dostupný za podmienok Creative Commons Attribution/Share-Alike License 3.0 Unported; prípadne za ďalších podmienok. Podrobnejšie informácie nájdete na stránke Podmienky použitia.
Antropológia
Aplikované vedy
Bibliometria
Dejiny vedy
Encyklopédie
Filozofia vedy
Forenzné vedy
Humanitné vedy
Knižničná veda
Kryogenika
Kryptológia
Kulturológia
Literárna veda
Medzidisciplinárne oblasti
Metódy kvantitatívnej analýzy
Metavedy
Metodika
Text je dostupný za podmienok Creative
Commons Attribution/Share-Alike License 3.0 Unported; prípadne za ďalších
podmienok.
Podrobnejšie informácie nájdete na stránke Podmienky
použitia.
www.astronomia.sk | www.biologia.sk | www.botanika.sk | www.dejiny.sk | www.economy.sk | www.elektrotechnika.sk | www.estetika.sk | www.farmakologia.sk | www.filozofia.sk | Fyzika | www.futurologia.sk | www.genetika.sk | www.chemia.sk | www.lingvistika.sk | www.politologia.sk | www.psychologia.sk | www.sexuologia.sk | www.sociologia.sk | www.veda.sk I www.zoologia.sk