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Food availability in exotic grasslands: a potential mechanism for depauperate breeding assemblages

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Andrew D. George, Timothy J. O'Connell, Karen R. Hickman, and David M. Leslie Jr., 2013, Food availability in exotic grasslands: a potential mechanism for depauperate breeding assemblages: Wilson Journal of Ornithology, v. 125, iss. 3.

Summary

We investigated the influence of Old World bluestem (Bothriochloa ischaemum; OWB) monocultures on grassland bird abundance through analysis of vegetation structure and food availability. We compared breeding bird density, vegetation structure and composition, and arthropod biomass between six native grass and six OWB fields in the southern Great Plains. The OWB fields supported 1.70 ± 0.27 (mean ± SE) Grasshopper Sparrows (Ammodramus savannarum) per ha compared to 0.95 ± 0.25 in native grass fields, but total species richness was greater in native grass fields (40 versus 28 species). Density of some bird species was correlated with vegetation structure regardless of field type, suggesting that management practices may be more influential [...]

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Harvested on Tue Aug 11 04:15:16 MDT 2015 from MODS XML Service

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Type Scheme Key
local-index unknown 70154910
local-pk unknown 70154910
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1676/13-003.1
series unknown Wilson Journal of Ornithology

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journalWilson Journal of Ornithology
parts
typevolume
value125
typeissue
value3
typePublication Place
valueLawrence, KS
languageEnglish
citationTypeArticle

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