Assessing the influence of social information and habitat structure on Cerulean warbler breeding distribution in southern Indiana

Cardinal Scholar

Show simple item record

dc.contributor.advisor Islam, Kamal
dc.contributor.author Barnes, Kevin William
dc.date.accessioned 2014-07-29T12:14:50Z
dc.date.available 2014-07-29T12:14:50Z
dc.date.issued 2014-07-19
dc.identifier.uri http://cardinalscholar.bsu.edu/handle/123456789/198451
dc.description.abstract Cerulean Warbler breeding distributions are often clustered, which suggests that settlement is induced by certain external cues, such as vegetation structure. However, habitat selection studies have been inconsistent when reporting microhabitat structure associated with Cerulean Warbler settlement. In this study I assessed the role of both social information and habitat structure on Cerulean Warbler settlement and distribution. I tested the role of social information on male Cerulean Warbler settlement decisions by broadcasting conspecific vocalizations in areas that had low relative abundance. I assessed the influence of habitat structure on male Cerulean Warbler occurrence and density by incorporating lidar-derived metrics of canopy structure into habitat models. Conspecific social information had no effect on Cerulean Warbler settlement; however, it is unknown how many individuals were exposed to the settlement cues. Canopy structure variables only improved density habitat models. The top model examining the relationship of habitat variables to Cerulean Warbler occurrence indicated that occurrence was more likely on northeast facing slopes, lower elevations, steeper slopes, and in areas with greater hickory (Carya sp.) basal area (m2/ha). Other influential variables were a tall canopy and greater total basal area (m2/ha) and tuliptree (Liriodendron tulipifera) basal area (m2/ha). The top models examining the relationship of habitat variables to Cerulean Warbler density indicated that high-use areas are more likely to exist on steeper slopes, with less total basal area (m2/ha) and large trees (≥ 53 cm DBH), more white oak (Quercus alba) basal area (m2/ha), and contain a homogeneous horizontal and vertical canopy structure. Other influential variables were areas lower in elevation with more small shrubs and saplings ≥ 3 < 10 cm DBH per ha. en_US
dc.description.sponsorship Department of Biology
dc.description.tableofcontents Cerulean warbler settlement cues : a conspecific attraction study -- Integrating lidar-derived canopy structure into Cerulean warbler habitat models.
dc.subject.lcsh Cerulean warbler -- Behavior -- Indiana
dc.subject.lcsh Cerulean warbler -- Indiana -- Reproduction -- Geographical distribution.
dc.subject.lcsh Cerulean warbler -- Habitat -- Indiana
dc.subject.lcsh Forest canopies -- Indiana
dc.title Assessing the influence of social information and habitat structure on Cerulean warbler breeding distribution in southern Indiana en_US
dc.title.alternative Title on signature form: Assessing the influence of social information and habitat structure on Cerulean warbler breeding distribution in southern Indiana
dc.description.degree Thesis (M.S.) en_US
dc.identifier.cardcat-url http://liblink.bsu.edu/catkey/1771912


Files in this item

This item appears in the following Collection(s)

  • Master's Theses [5318]
    Master's theses submitted to the Graduate School by Ball State University master's degree candidates in partial fulfillment of degree requirements.

Show simple item record

Search Cardinal Scholar


Browse

My Account