Tropical Ecology and Conservation [Monteverde Institute]

Alternative Title

Distribución de líquenes y briófitos en un gradiente altitudinal del bosque nuboso de Monteverde, Costa Rica

Creator

Laurel Brigham

Files

Download

Download Full Text (950 KB)

Publication Date

May 2016

Abstract

Climate change is causing decreased moisture levels during the dry season on the Pacific slope of the Monteverde cloud forest in Costa Rica. This alteration could be harmful to the abundant epiphytic, poikilohydric bryophyte and lichen community by causing range shifts, which could lead to local extinctions. I investigated the potential impact of changing moisture levels by establishing a baseline of the current distribution of bryophytes, bare bark, and crustose, foliose, and fruticose lichens between 1550-1750m in the cloud forest at the Monteverde Biological Station. I determined the percentage cover of each organism and the canopy cover for each cardinal direction at intervals of 20m of increasing elevation. I found a higher abundance of bryophytes and a lower abundance of crustose lichens at the higher elevations while the foliose and fruticose lichens did not illustrate a trend. There was a strong negative correlation between the bryophytes and crustose lichens that seemed both causal and correlated with elevation. El cambio climático está menguando el nivel de humedad durante la estación seca en la Vertiente del Pacífico de Monteverde, Costa Rica. Esta alteración podría perjudicar la abundancia de la comunidad de plantas epífitas como briófitos poiquilotermos y líquenes al causar cambios en los rangos de humedad, lo que podría promover extinciones locales. Investigué el impacto potencial del cabio de los niveles humedad estableciendo una línea de base de la distribución actual de briófitas, corteza desnuda, y líquenes incrustantes, foliosos y fruticosos entre los 1550 y 1750 metros de elevación en la Estación Biológica Monteverde. Determiné el porcentaje de cobertura de cada organismo y del dosel en cada punto cardinal a intervalos de 20 m de incremento en elevación. Encontré mayor abundancia de briófitas y menor abundancia de líquenes incrustantes en las elevaciones altas, mientras que los líquenes foliosos y fruticosos no mostraron ninguna tendencia. Hubo una correlación negativa entre briófitos y líquenes incrustantes que pareció tanto causal y correlacionado con la elevación.

Keywords

Bryophytes, Briofitas, Lichen communities, Comunidades de líquenes, Monteverde Cloud Forest Reserve (Costa Rica), Reserva Biológica Bosque Nuboso Monteverde (Costa Rica), EAP Spring 2016, EAP Primavera 2016

Description

Student affiliation: Ecology, Behavior, and Evolution Department, University of California, San Diego Born digital

Subject: topical

Bryophytes; Briofitas; Lichen communities; Comunidades de líquenes; EAP Spring 2016; EAP Primavera 2016

Subject: geographic

Monteverde Cloud Forest Reserve (Costa Rica); Reserva Biológica Bosque Nuboso Monteverde (Costa Rica)

Genre

Reports

Holding Location

|Monteverde Institute MVI

Identifier

M39-00568

Distribution of lichens and bryophytes along an elevational gradient in the Monteverde Cloud Forest, Costa Rica

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.