Long-Distance Dispersal, Isolation, and the Cloud Forest Flora of the Serrania de Macuira, Guajira, Colombia

Biotropica ◽  
1982 ◽  
Vol 14 (3) ◽  
pp. 208 ◽  
Author(s):  
Andrew M. Sugden
Keyword(s):  
Cloud Forest ◽  
Long Distance Dispersal ◽  
Long Distance ◽  
Forest Flora

scholarly journals Response to Comments on “Global Correlations in Tropical Tree Species Richness and Abundance Reject Neutrality”

Science ◽  
2012 ◽  
Vol 336 (6089) ◽  
pp. 1639.6-1639
Author(s):  
Robert E. Ricklefs ◽  
Susanne S. Renner
Keyword(s):  
Tropical Forests ◽  
Long Distance Dispersal ◽  
Long Distance ◽  
Forest Flora ◽  
Tropical Tree Species ◽  
Phylogenetic Reconstructions ◽  
Species Richness And Abundance ◽  
Neutral Models ◽  
Fossil Data ◽  
High Degree

The neutral models in the Technical Comments depend on the assumption of an initially homogeneous global tropical forest flora. Fossil data and phylogenetic reconstructions instead reveal a high degree of provincialism before the development of modern tropical forests with only occasional long-distance dispersal between continental regions, favoring parallel diversification of a small number of ancestral lineages that dispersed between regions at widely different times.

Floristics of the South American Páramo Moss Flora

1990 ◽  
Vol 2 (1) ◽  
pp. 127-132
Author(s):  
Dana Griffin III
Keyword(s):  
South America ◽  
Southern Hemisphere ◽  
Cloud Forest ◽  
South American ◽  
Long Distance Dispersal ◽  
The South ◽  
Long Distance ◽  
Late Pliocene ◽  
Northern Andes ◽  
The Past

The South American paramos appeared in Pliocene times and persist to the present day. The moss flora of this habitat consists of an estimated 400 species that comprise 8 floristic groups. In Venezuela these groups and their percent representation are as follows: neotropical 37%, Andean 26%, cosmopolitan 18%, Andean-African 8%, neotropical-Asiatic 3%, neotropical-Australasian 2%, temperate Southern Hemisphere 2% and northern boreal-temperate 2%. Acrocarpous taxa outnumber pleurocarps by nearly 3:1. The neotropical and Andean floristic stocks likely were present prior to late Pliocene orogenies that elevated the cordillera above climatic timberlines. These species may have existed in open, marshy areas (paramillos) or may have evolved from cloud forest ancestors. Taxa of northern boreal- temperate affinities, including those with Asiatic distributions, probably arrived in the paramos during the Pleistocene, a period which may also have seen the establishment in the Northern Andes of some cosmopolitan elements. Species with temperate Southern Hemisphere and Australasian affinities likely spread first to austral South America thence migrated northward during a cool, moist interval sometime over the past 2.5-3 million years or may have become established in the paramos as a result of long- distance dispersal.

Comment on ‘Seagrass Viviparous Propagules as a Potential Long-Distance Dispersal Mechanism’ by A. C. G. Thomson et al.

2015 ◽  
Vol 39 (1) ◽  
pp. 290-293 ◽  
Author(s):  
Elizabeth A. Sinclair ◽  
Renae Hovey ◽  
John Statton ◽  
Matthew W. Fraser ◽  
Marion L. Cambridge ◽  
...  
Keyword(s):  
Long Distance Dispersal ◽  
Long Distance ◽  
Dispersal Mechanism
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