Selene Escobar

Selene Escobar
Universidad San Francisco de Quito (USFQ) · Department of Biology

Ph.D. in Agroecology

About

18
Publications
27,825
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675
Citations
Introduction
Selene Escobar currently works at the Universidad San Francisco de Quito. Selene does research in Environmental Science, Agriculture and Ecology. Their current project is 'Las Hormigas como agentes funcionales para la recuperación ecológica de sistemas ganaderos'.
Additional affiliations
April 2014 - present
Universidad del Valle (Colombia)
Position
  • Researcher

Publications

Publications (18)
Article
Full-text available
Abstract Ants can provide pest biocontrol for coffee crops; however, this ecosystem service may decline in intensively managed plantations due to the loss of nesting resources. Considering how to increase the number of ants, we studied if they nest in different types of artificial substrates attached to coffee bushes both in shade-grown and sun-gro...
Cover Page
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Article
Abstract Land use management influence changes in biodiversity beyond the targeted species. Management practices in coffee plantations have shifted from coffee growing below accompanying (shade) trees, to intensified monocultures in which coffee grows fully exposed to the sun. Anthropogenic disturbance causes changes in species composition relative...
Article
Full-text available
• Local land‐use intensity and surrounding landscape complexity affect the diversity of local species. Ants are an important biocontrol agent of the coffee berry borer (CBB), the main coffee pest worldwide. Although intensification of coffee production and deforestation in the surrounding landscape may reduce ant diversity, α‐ and β‐diversity patte...
Article
Coffee is one of the most important commodities globally and the Coffee Berry Borer (CBB) is its main pest, causing losses of more than half a billion dollars annually. In this systematic review, we quantify the available evidence of successful biological control in coffee agroforestry. There is a recent research trend of switching from the traditi...
Chapter
Full-text available
This chapter presents a synthesis of the main studies that have been done about the ecology of ants in Colombia. It starts from pioneer studies in which the species diversity is compared among contrasting habitats, such as forests, ecological succession and livestock/agricultural systems at Valle del Cauca, and Meta departments. These and further s...
Technical Report
Full-text available
La migración en insectos es un tema muy poco estudiado en Colombia. Sin embargo, las especies migratorias de insectos juegan un papel importante tanto en el funcionamiento de los ecosistemas naturales como en la prestación de servicios ecosistémicos a los sistemas productivos de los que dependen las personas. Aunque el Plan Nacional de las Especies...
Article
Ants are effective at moving seeds toward their nests, something that may benefit the seeds. We evaluated whether seed movements that may be useful for the rehabilitation of degraded pastures in Colombia can be enhanced by local ants. An artificial aril was prepared and then evaluated in six open cattle pasture farms. Twenty paper disks (each holdi...
Article
Full-text available
The colonization of pastures by plant species other than grasses is limited by the scarcity of primary seed dispersers and the reduced availability of suitable sites for seed germination. In pastures, generalist ants could promote secondary dispersal of trees of importance for ecological restoration by manipulating and transporting seeds to their n...
Article
Full-text available
RESUMEN La colonización de los potreros por especies vegetales diferentes a los pastos está limitada por la escasez de dispersores primarios y la poca disponibilidad de sitios adecuados para la germinación de las plantas. Las hormigas generalistas de potrero podrían promover la dispersión secundaria de árboles de interés para la rehabilitación ecol...
Article
Full-text available
Livestock production models prevailing in Colombian Andes are simplified treeless pastures for extensive ranching, with the consequent reduction of environmental services, such as seed dispersal, due to lack of primary dispersers, scarcity of adequate sites for seedling establishment and competition with grasses. This study evaluated if, in these h...
Article
Full-text available
Predictive theory on how plant diversity promotes herbivore suppression through movement patterns, host associations, and predation promises a potential alternative to pesticide-intensive monoculture crop production. We used meta-analysis on 552 experiments in 45 articles published over the last 10 years to test if plant diversification schemes red...
Article
Living in large societies involves costs associated with high density of individuals, but being near others includes the benefit of access to conspecifics' information. High densities of workers in ant colonies impose traffic congestion costs on foraging trails. It has been postulated that crowding also increases foraging efficiency by facilitating...
Article
Full-text available
Las hormigas son importantes agentes funcionales en los ecosistemas naturales y agroecosistemas tropicales. El movimiento de semillas por hormigas puede resultar en dispersión o postdispersión afectando la probabilidad de supervivencia de diásporas en agroecosistemas ganaderos en proceso de rehabilitación ecológica, en cuyo caso las hormigas podría...
Article
Full-text available
Las hormigas son importantes agentes funcionales en los ecosistemas naturales y agroecosistemas tropicales. El movimiento de semillas por hormigas puede resultar en dispersión o postdispersión afectando la probabilidad de supervivencia de diásporas en agroecosistemas ganaderos en proceso de rehabilitación ecológica, en cuyo caso las hormigas podría...

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