Moisture and Temperature Patterns of Canopy Humus and Forest Floor Soil of a Montane Cloud Forest, Costa Rica

Biotropica ◽  
1995 ◽  
Vol 27 (1) ◽  
pp. 13 ◽  
Author(s):  
Stephanie A. Bohlman ◽  
Teri J. Matelson ◽  
Nalini M. Nadkarni
2004 ◽  
Vol 198 (1-3) ◽  
pp. 223-236 ◽  
Author(s):  
Nalini M Nadkarni ◽  
Douglas Schaefer ◽  
Teri J Matelson ◽  
Rodrigo Solano

Plant Ecology ◽  
2006 ◽  
Vol 193 (2) ◽  
pp. 171-184 ◽  
Author(s):  
Lars Köhler ◽  
Conrado Tobón ◽  
K. F. Arnoud Frumau ◽  
L. A. (Sampurno) Bruijnzeel

1991 ◽  
Vol 7 (3) ◽  
pp. 373-383 ◽  
Author(s):  
Maurizio G. Paoletti ◽  
R. A. J. Taylor ◽  
Benjamin R. Stinner ◽  
Deborah H. Stinner ◽  
David H. Benzing

ABSTRACTArboreal and terresterial soil and lilter were sampled for macro-and microinvertebrates at two locations in a Venezuelan cloud forest. Fauna were most abundant in forest floor soil and associated litter. However, media suspended in the canopy and particularly those trapped in bromeliad shoots were most densely populated, while the diversities of the arboreal and terrestrial soil fauna were indistinguishable. Rates of leaf litter decomposition in the arboreal and terrestrial soils were similar, but the arboreal soils contained higher concentrations of mineral nutrients and carbon. Implications of these findings for the definition of soil in humid tropical forests, and related differences between temperate and tropical forests are discussed. The similarities in diversity and differences in species composition between arboreal and terrestrial soil fauna raise questions concerning the evolution of tropical soil fauna, as well as the estimate of global biotic diversity.


2021 ◽  
Vol 16 (3) ◽  
pp. 427-434
Author(s):  
Jordan E. Rogan

The persistence of the coat color polymorphism melanism has been reported for several tropical felids, but its evolutionary advantages remain an active area of research. Few publications have explored melanism in the elusive species, oncilla (Leopardus tigrinus) within the Neotropical part of their range in Costa Rica. Herein, I present the first record of a melanistic oncilla within the montane cloud forest of Monteverde, Costa Rica. Recent studies have found support for theories (e.g. Temporal Segregation Hypothesis and Gloger’s Rule) explaining the ecological advantages driving melanism in oncilla and tropical felid populations. However, it is unclear what is driving melanism in this Monteverde oncilla population due to the singular observation. Further research investigating whether melanism is occurring at a higher frequency in other individuals in the region is critical to better understanding the occurrence of melanism in local populations of this cryptic species. The montane cloud forest in Monteverde provides critical habitat to this vulnerable species within the small Neotropical part of their range. Melanistic individuals may be particularly threatened by land-use change and increasing human pressure if theories for the evolutionary advantages and ecological conditions motivating melanism are supported.


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