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Auteur Douglas H. Johnson |
Documents disponibles écrits par cet auteur (3)
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Article
Sarah J. Thompson, Auteur ; Douglas H. Johnson, Auteur ; Neal D. Niemuth, Auteur ; Christine A. Ribic, AuteurOil development in the Bakken shale region has increased rapidly as a result of new technologies and strong demand for fossilfuel. This region also supports a particularly high density and diversity of grassland bird species, which are declining[...]![]()
Article
Marissa A. Ahlering, Auteur ; Douglas H. Johnson, Auteur ; John Faaborg, AuteurTerritorial songbirds generally use song to defend territories and attract mates, but conspecific song may also serve as a cue to attract other male songbirds to a breeding site. Although known to occur in some colonial and forest-associated spe[...]



