By S. Robbert Gradstein, Jõrgen Homeier, Dirk Gansert, Jurgen Homeier
ISBN-10: 1931968799
ISBN-13: 9781931968799
ISBN-10: 3940344222
ISBN-13: 9783940344229
Tropical mountain forests are very wealthy in species and are regularly regarded as hotspots of biodiversity. also they are of significant ecological value as resources of water and different surroundings prone for hundreds of thousands of individuals residing within the tropics. in spite of the fact that, those necessary wooded area ecosystems are actually more and more being fragmented, diminished, and disturbed by way of human interventions. This ebook originated from a lecture sequence at the tropical mountain woodland prepared by way of the G?ttingen Centre of Biodiversity and Ecology and held on the collage of G?ttingen, Germany, through the summer season time period of 2007. the amount provides a synthesis of present ecological examine in Germany at the tropical mountain woodland, from an interdisciplinary standpoint.
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Extra resources for The tropical mountain forest : patterns and processes in a biodiversity hotspot
Sample text
2007). In fact, there are more species in orchids than in any other group of plants and many are still awaiting discovery (Fig. 2). High endemism is also found in the aroids and the bromeliads; the latter are abundant in the New World tropics but are absent in Africa and Asia. Ferns, bryophytes and lichens, on the other hand, are generally more widespread than the flowering plants and hold fewer endemics due to their dispersal by light, wind-dispersed spores. R. Gradstein The rich diversity of tropical epiphytes is now becoming increasingly endangered by the destruction of the montane forests and their conversion into pastures and other forms of land use.
These are more pronounced for birds than for mammals. org), but also one of the hotspots of endemism, with at least 15,000 vascular plant species (and possibly many more) occurring nowhere else. , Prance 1982, Davis et al. 1997, Pitman et al. 1999). A major problem is the uneven botanical collecting activity over much of the tropics, so that "centres of endemism" frequently correspond to regions of intensive sampling rather than to natural patterns (Nelson et al. 1990). Typically, the proportion of endemic species increases with elevation and peaks above 2000 m, around timberline or even in the alpine zone, and shows a maximum at higher elevations than species richness (Figs.
In: S. P. Churchill SP, Balslev H, Forero E, Luteyn JL (eds) Biodiversity and conservation of Neotropical montane forests. New York Botanical Gardens, Bronx, pp 89-102 Fjeldså J (2007) The relationship between biodiversity and population centers: the high Andes region as an example. Biodiversity and Conservation 16: 2739-2751 Fjeldsa J, Lovett JC (1997) Biodiversity and environmental stability. Biodiversity and Conservation 6: 315-322 Fjeldsa J, Lambin E, Mertens B (1999) Correlation between endemism and local ecoclimatic stability documented by comparing Andean bird distributions and remotely sensed land surface data Ecography 22: 63-78 Fu C, Wang J, Pu Z, Zhang S, Chen H, Zhao B, Chen J, Wu J (2007) Elevational gradients of diversity for lizards and snakes in the Hengduan Mountains, China.