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Entomofaunal comparison under three landscape conditions at the cerro de Juaica (Tenjo, Cundinamarca)

Chaves Forero, Andrés Mauricio; Duarte Gómez, Héctor William; Zenner de Polanía, Ingeborg (Bogotá : Universidad de Ciencias Aplicadas y Ambientales, 2015, 2015-01)

Los estudios de biodiversidad de la entomofauna sones-casos para los bosques alto andinos en Colombia y aus-entes para sistemas agroforestales. A fin de contribuir con el conocimiento de este ...
The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project

Hudson, Lawrence N.; Newbold, Tim; Contu, Sara; Hill, Samantha L.; Lysenko, Igor y otros doscientos (2017)

The PREDICTS project—Projecting Responses of Ecological Diversity In Changing Terrestrial Systems (www.predicts.org.uk)—has collated from published studies a large, reasonably representative database of comparable samples ...
Trade-offs between ecosystem services and alternative pathways toward sustainability in a tropical dry forest region

Mora, Francisco; Balvanera, Patricia; García Frapolli, Eduardo; Castillo, Alicia; Trilleras, Jenny M.; Cohen Salgado, Daniel; Salmerón, Oscar (2016)

The design of strategies aimed at sustainable resource management requires an understanding of the trade-offs between the ecosystem services at stake, to determine appropriate ways in which to navigate them. We assess ...

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Entomofaunal comparison under three landscape conditions at the cerro de Juaica (Tenjo, Cundinamarca)
...
Chaves Forero, Andrés Mauricio | 2015-01

Los estudios de biodiversidad de la entomofauna sones-casos para los bosques alto andinos en Colombia y aus-entes para sistemas agroforestales. A fin de contribuir con el conocimiento de este grupo específico en estos ecosis-temas, se realizó un estudio para conocer la diversidad de la entomofauna presente en el cerro de Juaica, en Tenjo, Cundinamarca. Este ecosistema, se dividió en tres paisajes, denominados bosque, sistema agroforestal y potrero. En el sistema agroforestal, se plantaron tres especies de árboles nativos: roble (Quercus humboldtii), aliso (Alnus acumi-nata) y magle o macle (Escallonia pendula), para observar su influencia respecto a la diversidad insectil, en compar-ación con el bosque nativo. En cada paisaje, se utilizaron tres técnicas de captura de insectos, por sitio de muestreo, distribuidos en transectos: trampas pitfall, red entomológica y colecta directa. Se colectaron 842 individuos durante cua-tro meses, los cuales, se encuentran representados por 87 morfoespecies agrupadas en 49 familias y 12 Órdenes. El Orden de mayor importancia numérica fue Diptera, con 13 familias, que equivale al 26,5% de la abundancia de la ento-mofauna muestreada; le sigue Hemiptera, con doce familias (25%); Coleoptera, con nueve familias (18%) e Hymenop-tera, con cinco familias (10%). El análisis de los índices de diversidad mostró el valor más alto para el paisaje bosque, con 3,50, para Shannon-Wiener y 11,17, para Margalef. El sistema agroforestal se puede considerar como un arreglo positivo para el mantenimiento o el establecimiento de una fauna insectil, ya prácticamente ausente en los potreros, que reemplazaron el bosque

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The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project
...
Hudson, Lawrence N. | 2017

The PREDICTS project—Projecting Responses of Ecological Diversity In Changing Terrestrial Systems (www.predicts.org.uk)—has collated from published studies a large, reasonably representative database of comparable samples of biodiversity from multiple sites that differ in the nature or intensity of human impacts relating to land use. We have used this evidence base to develop global and regional statistical models of how local biodiversity responds to these measures. We describe and make freely available this 2016 release of the database, containing more than 3.2 million records sampled at over 26,000 locations and representing over 47,000 species. We outline how the database can help in answering a range of questions in ecology and conservation biology. To our knowledge, this is the largest and most geographically and taxonomically representative database of spatial comparisons of biodiversity that has been collated to date; it will be useful to researchers and international efforts wishing to model and understand the global status of biodiversity

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Trade-offs between ecosystem services and alternative pathways toward sustainability in a tropical dry forest region
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Mora, Francisco | 2016

The design of strategies aimed at sustainable resource management requires an understanding of the trade-offs between the ecosystem services at stake, to determine appropriate ways in which to navigate them. We assess trade-offs between forage production for cattle ranching and the maintenance of carbon stocks or tree diversity in a Mexican tropical dry forest. Trade-offs between pairs of services were assessed by identifying their efficiency frontiers at both site and landscape scales. We also estimated service outcomes under current and hypothetical land-management conditions. We found stark trade-offs between fodder and carbon stocks and between fodder and tree species richness at the site scale. At the landscape scale, the efficiency frontier was concave, with a much less pronounced trade-off in the fodder-species richness case. Our estimates of current service supply levels showed a reduction of 18-21% for C stock and 41-43% for fodder biomass, relative to the maximum feasible values along the efficiency frontier. Choice of the optimum management strategy to reduce such inefficiency depended on deforestation level: secondary forest regeneration was most suitable when deforestation is low, whereas increased fodder productivity in the pastures is best when deforestation is high. Pasture enrichment with forage trees and secondary forest growth are potential management alternatives for achieving sustainability given the range of enabling ecological factors and to balance ecological and social sustainability given the requirements and preferences of local stakeholders. Given that analogous trade-offs are found across the tropics, this work contributes to reconciling tropical forest maintenance and its use for sustainable rural livelihoods.

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Browsing by Subject "Biodiversity"

Entomofaunal comparison under three landscape conditions at the cerro de Juaica (Tenjo, Cundinamarca) ﻿

The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project ﻿

Trade-offs between ecosystem services and alternative pathways toward sustainability in a tropical dry forest region ﻿

Envíos recientes

Entomofaunal comparison under three landscape conditions at the cerro de Juaica (Tenjo, Cundinamarca)

The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project

Trade-offs between ecosystem services and alternative pathways toward sustainability in a tropical dry forest region

Entomofaunal comparison under three landscape conditions at the cerro de Juaica (Tenjo, Cundinamarca)

The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project

Trade-offs between ecosystem services and alternative pathways toward sustainability in a tropical dry forest region