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Bogotá, Colombia

Gasca-Alvarez H.J.,Corporacion Sentido Natural | Ratcliffe B.C.,University of Nebraska - Lincoln
Zootaxa | Year: 2011

A brief review of the taxonomy and natural history of the New World Oryctini is provided. An updated and annotated checklist of the Oryctini of the Neotropical and Nearctic realms is included. This now includes 14 genera, 133 extant species, and two extinct species. Tehuacania porioni Dechambre, 2009 (Oryctini) is reduced to synonymy with Barutus hartmanni Ratcliffe, 2003 (Pentodontini). © 2011 Magnolia Press.


We compared the richness and biomass of vascular epiphytes in six seasonally semideciduous oak (Quercus humboldtii) forest fragments of varying structure, using the SVERA protocol. Bromeliads dominated epiphytic vegetation in terms of richness, 10 out of a total of 17 species, and biomass (98%), but overall epiphyte community development was poor in comparison with neotropical wet mountain forests. Epiphyte richness and biomass was similar in all fragments, except one bottom-valley fragment, despite large differences in anthropogenic-induced forest structure. We hypothesize that epiphyte resilience to disturbance in these dry oak forest fragments is due to tolerance of the local epiphyte species to desiccation, overriding micro-climatic differences between forest fragments of different structure.


Gasca-Alvarez H.J.,Corporacion Sentido Natural | Amat-Garcia G.,National University of Colombia
ZooKeys | Year: 2010

An illustrated key to identify the adults at the generic level of Dynastinae known from Colombia is provided. A synopsis for each genus is given with updated information on the diversity and distribution of species in Colombia and worldwide. © H.J. Gasca-Álvarez, G. Amat-García.


Higuera D.,Corporacion Sentido Natural | Martin-Lopez B.,Autonomous University of Madrid | Sanchez-Jabba A.,Corporacion Sentido Natural
Regional Environmental Change | Year: 2013

Despite the importance of neotropical cloud forests as providers of ecosystem services to society, they are one of the most threatened ecosystems in the world. We analysed the importance of three cloud forest reserves in central Colombia as providers of ecosystem services, as well as the social support to conservation actions in these ecosystems through willingness to pay (WTP) and willingness to give up time (WTT) estimates. Our results highlight the high commitment of all users of the cloud forest areas towards the conservation of the ecosystem services provided by these strategic ecosystems. We found that the most important perceived ecosystem services were water supply and habitat maintenance for species. Our findings also suggest that the respondents' ecological knowledge (measured as the awareness of the ecosystem services supplied by cloud forests) was an important factor in determining both WTP and WTT for conserving cloud forests. Moreover, our results indicate that WTT should be a viable technique to explore individual preferences of different stakeholders towards conservation activities in cloud forests. Based on our results, we propose a conservation strategy of cloud forests that considers different users' socio-economic and environmental characteristics, in which both experimental and experiential knowledge should be incorporated in order to promote collective action. © 2012 Springer-Verlag Berlin Heidelberg.

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