<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Fairchild, Karl</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Avian Community Assembly Following Volcanic Disturbance at Volcan Arenal, Costa Rica and Mount St. Helens, USA</style></title><secondary-title><style face="normal" font="default" size="100%">Fisheries and Wildlife, Colledge of Agricultural Sciences </style></secondary-title><tertiary-title><style face="normal" font="default" size="100%">W. Douglas Robinson</style></tertiary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">“Volcanism</style></keyword><keyword><style  face="normal" font="default" size="100%">”</style></keyword><keyword><style  face="normal" font="default" size="100%">”  “volcanic</style></keyword><keyword><style  face="normal" font="default" size="100%">” “biomes</style></keyword><keyword><style  face="normal" font="default" size="100%">” “bird</style></keyword><keyword><style  face="normal" font="default" size="100%">” “bird communities</style></keyword><keyword><style  face="normal" font="default" size="100%">” “compare</style></keyword><keyword><style  face="normal" font="default" size="100%">” “Mount St. Helens</style></keyword><keyword><style  face="normal" font="default" size="100%">” “temperate</style></keyword><keyword><style  face="normal" font="default" size="100%">” “tropical</style></keyword><keyword><style  face="normal" font="default" size="100%">” “Volcan Arenal</style></keyword><keyword><style  face="normal" font="default" size="100%">” “volcanic disturbance</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">05/2009</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">Oregon State University</style></publisher><pub-location><style face="normal" font="default" size="100%">Corvallis</style></pub-location><volume><style face="normal" font="default" size="100%">HBA, International Studies of Fisheries and Wildlife</style></volume><pages><style face="normal" font="default" size="100%">45</style></pages><abstract><style face="normal" font="default" size="100%">Volcanism is an agent of major disturbance in many parts of the world. While the effects of volcanic disturbance are fairly well-known among some groups of species, few studies have been performed in bird communities. Likewise, few studies have attempted to compare how communities in temperate and tropical biomes respond to volcanism. This study examines how bird communities inhabiting areas recently disturbed by volcanism differ at Mount St. Helens in the United States, and Volcan Arenal in Costa Rica. I compare the two bird communities to evaluate patterns in species richness, species diversity and guild diversity and how those patterns fit with previously described differences in temperate and tropical bird communities. The two communities generally exhibited similarity in richness and diversity, although small sample sizes at Arenal may have influenced ability to detect differences. Nevertheless, my results suggest that the relatively low complexity of vegetation at these early successional study sites may explain the greater similarity than initially predicted. My results also suggest the greatest difference between the temperate and tropical sites is in the most structurally complex sites. Additional surveys at these and other sites are needed to reveal the generality of my results.</style></abstract><work-type><style face="normal" font="default" size="100%">Undergraduate</style></work-type></record></records></xml>