Changes in bird species distribution in four altitudinal zones in Monteverde, Costa Rica, December 2006

Alternative Title

Cambios en la distribución de especies de aves en cuatro zonas de altitud en Monteverde, Costa Rica

Creator

Grant Connette

Files

Publication Date

December 2006

Abstract

The impact of climate change on ecosystems has been demonstrated by studies of upper elevation amphibians (Pounds 1997). In spite of this, the degree to which climate change affects birds is not as clear. Two previous studies have found the upward movement of many species of birds in the Monteverde area (Donnelly 1998, Palm 2003). I surveyed birds in four altitudinal zones on the less studied Atlantic slope of the Monteverde Cloud Forest Preserve and compared my findings to the bird distributions reported by Michael Fogden in 1993. I found significant upward movement of bird species (sign test, p < 0.05) as well as a general decline in the abundances of certain bird species (x2 = 27.65, df = 3, p < 0.001). The majority of these declines are probably linked to the reforestation of the Peñas Blancas valley but climate change is likely responsible for the upslope movement and increased abundance of higher elevation birds.

Resumen

El impacto del cambio climático en los ecosistemas ha sido demostrado por varios estudios en anfibios que habitan en las zonas altas (Pounds, 1997). A pesar de esto, el hecho que el cambio climático afecte de alguna manera a las aves, no esta claro. Dos estudios anteriores han encontrado que muchas especies de aves de las zonas bajas están incrementando sus poblaciones en Monteverde (Donnelly, 1998 y Palm, 2003). Examine 4 zonas altitudinalmente diferentes en el lado Atlántico de la Reserva del Bosque Nuboso de Monteverde y compare mis resultados con las distribuciones de especies de aves reportadas por Michael Fogden en 1993.

Keywords

Birds--Behavior, Climatic changes, CIEE Fall 2006

Palabras claves

Aves--Comportamiento, Cambios climáticos, CIEE Otoño 2006

Extent

11 pages

Geographic Location

Monteverde (Puntarenas, Costa Rica)

Holding Location

Monteverde Institute

Language

English; Spanish

Media Type

Articles

Format

Digital Only

Identifier

M39-00347

Type

Book

Recommended Citation

Connette, Grant, "Changes in bird species distribution in four altitudinal zones in Monteverde, Costa Rica, December 2006" (2006). Monteverde Institute: Tropical Ecology and Conservation. 54.
https://digitalcommons.usf.edu/tropical_ecology/54