Lyonia:
a journal of ecology and application
Lyonia: Volume-in-Progress (Private)
Date TBD

Lyonia 8(2) 2005 - Dry Forest Biodiversity and Conservation 1: Biodiversity

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Introduction 
In 2001, the 1. Congress of Conservation of Biological and Cultural Diversity in the Andes and the Amazon Basin in Cusco, Peru, attempted to provide a platform to bridge the existing gap between Scientists, Non Governmental Organizations, Indigenous Populations and Governmental Agencies. This was followed by a 2. Congress in 2003, held in Loja, Ecuador together with the IV Ecuadorian Botanical Congress. The most important results of these conferences were published in Lyonia 6 (1/2) and 7 (1/2) 2004.

Since then, the "Andes and Amazon" Biodiversity Congress has become a respected institution, and is being held every two years in Loja, Ecuador, where it has found a permanent home at the Universidad Tecnica Particular.

In 2005, the 3. Congres on Biological and Cultural Diversity of the Andes and Amazon Basin joined efforts with the 2. Dry Forest Congress and the 5. Ecuadorian Botanical Congress, to provide an even broader venue.

The Tropical Dry Forests of Latin America as well as the Andes and the Amazon Basin represent one of the most important Biodiversity-Hotspots on Earth. At the same time, both systems face imminent dangers due to unsustainable use.
Attempts of sustainable management and conservation must integrate local communities and their traditional knowledge. Management decisions need to include the high importance of natural resources in providing building materials, food and medicines for rural as well as urbanized communities. The traditional use of forest resources, particularly of non-timber products like medicinal plants, has deep roots not only in indigenous communities, but is practiced in a wide section of society. The use of medicinal herbs is often an economically inevitable alternative to expensive western medicine. The base knowledge of this traditional use is passed from one generation to the next. Especially the medical use represents a highly dynamic, always evolving process, where new knowledge is constantly being obtained, and linked to traditional practices.
An increased emphasis is being placed en possible economic benefits especially of the medicinal use of tropical forest products instead of pure timber harvesting, an approach particularly appealing to countries with difficult economic conditions. Most research efforts, due to lack of manpower, time end resources, focus only on either biodiversity assessments or ethnobotanical inventories, or try to implement management and use measures without having a sound scientific base to do so. Often the needs of the local populations, e.g. their dependency on plant resources for health care are entirely ignored.

Lyonia presents the most important papers of these three conferences in parts of its 2005 and 2006 issues.

Lyonia 8(2) 2005 - Dry Forest Biodiversity and Conservation 1: Biodiversity

Lyonia 9(1) 2006 - Biodiversity and Cultural Diversity in the Andes and Amazon 1: Biodiversity

Lyonia 9(2) 2006 - Dry Forest Biodiversity and Conservation 2: Propagation and Conservation Strategies

Lyonia 10 (1) 2006 - Biodiversity and Cultural Diversity in the Andes and Amazon 2: Forest Conservation Strategies

Lyonia 10 (2) March 2006 - Biodiversity and Cultural Diversity in the Andes and Amazon / Dry Forest Conservation: Ethnobotany and Forest Use
Articles 


Resumen 
En Ecuador los bosques secos se encuentran en el centro y sur de la región occidental de los Andes, en las provincias de Esmeraldas, Manabí, Guayas, El Oro y Loja. Originalmente cerca del 35% (28000 km2) del Ecuador occidental estaba cubierto por bosque seco, se estima que el 50% habría desaparecido. En Loja se encuentra la mayor superficie de este ecosistema, entre 0 a 1100 msnm. El 31% (3400 km2) de la provincia de Loja (11000 km2) es bosque seco, sobre terrenos colinados y abruptos. Biológicamente son importantes porque forman parte de la zona de endemismo Tumbesino. Por tradición los bosques secos de la zona han sido sobreexplotados y degradados por extracción de madera, ampliación de frontera agrícola, incendios forestales,... [Read Entire Article]


Resumen 
Las formaciones vegetales secas hacen parte de los ecosistemas más amenazados a nivel mundial. En Colombia, los bosques secos representan el 1.5% de su cobertura original ya que han sido transformados principalmente a agroescosistemas Esto, sumado a sus altos niveles de endemismo, las adaptaciones únicas a condiciones extremas de los organismos que viven en ellos y su importancia como bancos genéticos in situ hacen necesario caracterizarlos y tomar medidas de conservación que garanticen la sostenibilidad de los procesos ecológicos existentes. El uso de sensores remotos ha sido una alternativa para su monitoreo, pero debido a la dificultad para mapearlos efectivamente por sus altos niveles de fragmentación, al... [Read Entire Article]


Resumen  Determinamos la composición faunística de quirópteros en la vertiente norte del Parque Nacional Henri Pittier, localizado en los 10° 21' 33" y 10° 31 '17" de latitud norte y los 67° 33' 14" y 67° 39' 38" de longitud oeste. Aunque no existen políticas claras de conservación para los cultivos tradicionales de cacao dentro del parque, estos constituyen importantes reservorios de biodiversidad. Se muestrearon las comunidades de quirópteros de una plantación de cacao y un bosque seco, con un esfuerzo de captura de 1.008 horas - malla, encontrándose una proporción de 84% Phyllostomidae, 7% Vespertilionidae, 5% Desmodontidae, 2% Mormoopidae y 2% Emballonuridae respectivamente. Las especies más abundantes... [Read Entire Article]


Abstract  A comparison of vegetation changes during and after EN 1997/98 at a coastal desert site and a dry woodland environment 90 km inland is given. Initially, both sites react similarly to El Niño: short-lived herbs and grasses sprout quickly. But the ongoing succession and retrogression differs in the desert and the woodland due to differences in precipitation at the two sites as well as differences in disturbance regimes (fire and burrowers) and in the intensity of land use. Results are discussed in the context of global climate change and are applied to human land use issues where ruderals and nonindigenous species invade and change species composition. It is hypothesized that increased ENSO frequency and intensity create greater phytomass that in turn encourages farmers... [Read Entire Article]


Resumen  El presente estudio intenta conocer a mediano y largo plazo la dinámica poblacional de las especies de tres parcelas de una hectárea. La parcela No. 1 presenta una sola especie Acacia macracantha . En la parcela No. 2 se registraron dos especies Acacia macracantha y Tecoma stans . En la parcela No. 3 se registraron 3 especies Acacia macracantha , Tecoma stans y Budleja bullata . El Bosque de la parcela No. 1 presenta una estructura resultado de impactos ambientales de origen antrópico recientes, dando como resultado la inexistencia de árboles juveniles y árboles con alturas y diámetros mayores El bosque de las parcelas 2 y 3 puede considerarse como secundario maduro; presenta un buen... [Read Entire Article]