Avian feeding guild diversity in sun-grown and shade-grown coffee farms in San Luis Valley, Monteverde, Costa Rica, 2006

Alternative Title

Diversidad gremial de alimentación Aviar en las fincas de café cultivado al sol y en la sombra en el valle de San Luis, Monteverde, Costa Rica

Creator

Anna Richey
Toria Waldron

Files

Publication Date

August 2006

Abstract

Three coffee farms were studied to determine avian feeding guild diversity differences between sun-grown and shade-grown plots in San Luis Valley, Monteverde, Costa Rica. Sun-grown and shade-grown plots were observed on three coffee farms, species were identified by sight, and separated into feeding guilds. Using the Shannon-Weiner Diversity Index, we found a significantly greater overall avian diversity in sun-grown plots (Modified t-test, t= -4.00, df = 267.36). We also found no significant difference in feeding guild diversity between sun-grown and shade-grown plots, but found a significant difference within insectivorous and omnivorous feeding guilds supporting greater diversity in the sun-grown plots (Modified t-Test, Insectivorous: p > 0.05 t = -2.28, df = 102.51, Omnivorous: p > 0.05, t = -2.84, df = 98.67). This comparison could indicate the sun-grown plots in San Luis Valley, Costa Rica to be a more productive system, whereas shade-grown plots are dominated by two species affecting overall diversity.

Resumen

Se estudio tres fincas de café para determinar la diferencia de la diversidad gremial de alimentación aviar entre las parcelas cultivadas al sol y en la sombra en el valle de San Luis, Monteverde, Costa Rica.

Keywords

Birds--Food, Coffee plantations, Birds--Variation, CIEE Summer 2006

Palabras claves

Aves--Alimento, Plantaciones de café, Aves--Variación, CIEE Verano 2006

Extent

12 pages

Geographic Location

San Luis (Puntarenas, Costa Rica)

Holding Location

Monteverde Institute

Language

English; Spanish

Media Type

Articles

Format

Digital Only

Identifier

M39-00304

Type

Book

Recommended Citation

Richey, Anna and Waldron, Toria, "Avian feeding guild diversity in sun-grown and shade-grown coffee farms in San Luis Valley, Monteverde, Costa Rica, 2006" (2006). Tropical Ecology and Conservation [Monteverde Institute]. 22.
https://digitalcommons.usf.edu/tropical_ecology/22