Ashman, T.L., T.M. Knight, J.A. Steets, P. Amarasekare, M. Burd, D.R. Campbell, M.R. Dudash, M.O. Johnston, S.J. Mazer, R.J. Mitchell, M.T. Morgan, and W.G. Wilson. 2004.  Pollen limitation of plant reproduction: ecological and evolutionary causes  and consequences. Ecology 8: 2408–2421.

Asikainen, E., and P. Mutikainen. 2005. Preferences of pollinators and herbivores in gynodioecious Geranium sylvaticum. Annals of Botany  95(5): 879–886.

Asner, G.P., A.J. Elmore, L.P. Olander, R.E. Martin, and A.T. Harris. 2004. Grazing systems, ecosystem responses, and global change. Annual Review of Environment and Resources 29:: 261–299.

Bailey, A.M., and R.J. Niedrach. 1965. Birds of Colorado. Denver: Denver Museum of Natural History. Vol. 1–2, 895 pp.

Baker, H.G. 1975. Sugar concentrations in nectars from hummingbird flowers. Biotropica 7:: 37–41.

Baker, H.G., and P.D. Hurd, Jr. 1968. Intrafloral ecology. Annual Review of Entomology 13:: 385–414.

Baker, H.G., I. Baker, and S.A. Hodges. 1998. Sugar composition of nectars and fruits consumed by birds and bats in the tropics and subtropics. Biotropica 30: 559–586.

Baker, J.D.R., and W. Cruden. 1991. Thrips-mediated self-pollination of two facultatively xenogamous wetland species. American Journal of Botany 78: 959–963.

Baker, R.J., L.C. Bradley, R.D. Bradley, J.W. Dragoo, M.D. Engstrom, R.F. Hoffmann, C.A. Jones, F. Reid, D.W. Rice, and C. Jones. 2003. Revised Checklist of North American Mammals North of Mexico, 2003. Occasional Paper OP-229. Lubbock, Tex.: Museum of Texas Tech University, NSLR Publications. 24 pp.

Banda, H.J., and R.J. Paxton. 1991. Pollination of greenhouse tomatoes by bees. Acta Horticulturae 288: 194–198.

Banks, R.C., and W.A. Calder. 1989. Did Lewis and Clark discover the broad-tailed hummingbird (Selasphorus platycerus). Archives of Natural History 16: 243–244.

Barg, R., S. Shabtai, N. Carmi, M. Pilowsky, and Y. Salts. 2001. Transgenic parthenocarpy in determinate and indeterminate tomato cultivars. Acta Horticulturae 560: 207–210.

Barkin, D. 2003. Alleviating poverty through ecotourism: promises and reality in the  monarch butterfly reserve of Mexico. Environment, Development and Sustainability 5: 371–382.

Barrett, D.P. 1955. History of American foulbrood in Michigan: period 1927–1954. Gleanings in Bee Culture 83: 460–461.

Barth, F.G. 1985. Insects and Flowers: The Biology of a  Partnership. Translated from German by M.A. Biederman-Thorson. Princeton University Press. 297 pp.

Barth, F.G. 1991.  Insects and Flowers: The Biology of a  Partnership. Translated from German by M.A.Biederman-Thorson. Princeton University Press. 408 pp.

Barthell, J.F., and R.W. Thorp. 1995. Nest usurpation among females of an introduced leafcutter bee, Megachile apicalis. Southwestern Entomologist 20: 117–124.

Barthell, J.F., G.W. Frankie, and R.W. Thorp. 1998. Invader effects in a community of cavity nesting megachilid bees (Hymenoptera: Megachilidae). Environmental Entomology 27:: 240–247.

Barthell, J.F., J.M. Randall, R.W. Thorp, and A.M. Wenner. 2001. Promotion of seed set in yellow star-thistle by honey bees: evidence of an invasive mutualism. Ecological Applications  11(6): 1870–1883.

Bartholomew, C.S., and K.V. Yeargan. 2001. Phenology of milkweed (Asclepiadaceae) growth and monarch (Lepidoptera: Nymphalidae) reproduction in Kentucky and ovipositional preference between common and honeyvine milkweed. Journal of the Kansas Entomological Society 74: 211–220.

Batabyal, A.A., and P. Nijkamp. 2005. Alternate strategies for managing resistance to antibiotics and pesticides. Environmental Economics and Policy Studies  7(1): 39–51.

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