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Annals of the Smithsonian Institution 2000 



Wcislo, William T. 2000. "Environmental hierarchy, 

 behavioral contects, and social evolution in insects." In 

 R.P. Martins, T.M. Lewisohn, and M.S. Barbeitos (eds.), 

 Ecologia e comportamento de Insectos: 49-84. Rio de Janeiro: 

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Werren, John, and Windsor, Donald. 2000. "Wolbachia 

 infection frequencies in insects: evidence of a global 

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 267: 1277-1285. 



West, Stuart A., Herre, Edward Allen, and Sheldon, Ben C. 

 2000. "The benefits of allocating sex." Science 290(5490): 

 288. 



Wikelski, Martin, Hau, Michaela, and Wingfield, John. 

 2000. "Seasonality of reproduction in a neotropical rain 

 forest bird." Ecology 81(9): 2458-2472. 



Wilf, Peter, Labandeira, Conrad C, Staines, Charles L., 

 Windsor, Donald M., Allen, Ashley L., and Johnson, Kirk 

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 on gingers from latest Cretaceous to recent." Science 

 289(5477): 291-294. 



Williams, S. T. 2000. "Species boundaries in the starfish 

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Wills, Christopher, and Condit, Richard. 1999. "Similar 

 non-random processes maintain diversity in two tropical 

 rainforests." Proceedings of the Royal Society Biological Sciences 

 Series B 266(1427): 1445-1452. 



Winter, Klaus, Garcia, Milton, Lovelock, Catherine, 

 Gottsberger, Richard, and Popp, Marianne. 2000. 

 "Responses of model community of two tropical tree 

 species to elevated atmospheric CO.,: growth on 

 unfertilized soil." Flora 195: 289—302. 



Winter, Klaus, and Lovelock, Catherine E. 1999. "Growth 

 responses of seedlings of early and late successional 

 tropical forest trees to elevated atmospheric CO,." Flora 

 194(2): 221-227. 



Wright, S.Joseph, and Calderon, Osvaldo. 1999. "El Nino 

 events influence plant reproduction in a wet tropical 

 forest." Inside CTFS Summer 1999: 3, 12. 



Wright, S. Joseph, Zeballos, Horacio, Dominguez, Ivan, 

 Gallardo, Marina M., Moreno, Marta C, and Ibanez, 

 Roberto. 2000. "Poachers alter mammal abundance, seed 

 dispersal, and seed predation in a neotropical forest." 

 Conservation Biology 14(1): 227-239. 



Yanoviak, Stephen P. 1999. "Community structure in water- 

 filled tree holes of Panama: Effects of hole height and 

 size." Selbyana 20(1): 106—115. 



Yanoviak, Stephen P. 1999. "Distribution and abundance of 

 Microvelia cavicola Polhemus (Heteroptera: Veliidae) on 

 Barro Colorado Island, Panama." Journal of the New York 

 Entomological Society 107(1): 38-45. 



Yavitt, Joseph B. 2000. "Nutrient dynamics of soil derived 

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 Panama." Biotropica 32(2): 198-207. 



Zhao, Zhijun, and Piperno, Dolores. 2000. "Late 

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Zotz, Gerhard. 1999. "What are backshoots good for? 

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Zotz, Gerhard. 2000. "Size dependence in the reproductive 

 allocation of Dimerandra emarginata, an epiphytic 

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Zotz, Gerhard. 2000. "Size-related intraspecific variability in 

 physiological traits of vascular epiphytes and its 

 importance for plant physiological ecology." Perspectives in 

 Plant Ecology. Evolution and Systematics 311(1): 19—28. 



Zotz, Gerhard, Bermejo, Patricia, and Dietz, Hansjoerg. 

 1999. "The epiphyte vegetation of Annona glabra on 

 Barro Colorado Island, Panama. "Journal of Biogeography 

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Zotz, Gerhard, Reichling, Peter, and Krack, Stefanie. 1999. 

 "Another woody hemiepiphyte with CAM: Havetiopsis 

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 194(2): 215-220. 



Zotz, Gerhard, and Thomas, Vera. 1999. "How much water 

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National Science Resources Center 



National Science Resources Center. Catastrophic Events: 



Student Guide and Source Book. Washington, D.C.: National 

 Academy of Sciences, 2000. 



. Catastrophic Events: Teacher's Guide. Washington, 



D.C.: National Academy of Sciences, 2000. 



-. Energy, Machines, and Motion: Student Guide and 



Source Book. Washington, D.C.: National Academy of 

 Sciences, 2000. 



-. Energy, Machines, and Motion: Teacher's Guide. 



Washington, D.C. National Academy of Sciences, 2000. 

 . Human Body Systems: Student Guide and Source Book. 



Washington, D.C: National Academy of Sciences, 2000. 

 . Human Body Systems: Teacher's Guide. Washington, 



D.C: National Academy of Sciences, 2000. 

 . Properties of Matter: Student Guide and Source Book. 



Washington, D.C: National Academy of Sciences, 2000. 

 . Properties of Matter: Teacher's Guide. Washington, 



D.C. National Academy of Sciences, 2000. 



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