Long, R. W. 1971. A flora of tropical Florida. University of
Miami Press, Coral Gables, Florida.
Longino, J. T. 1989a. Geographic variation and community
structure in an ant-plant mutualism: Azteca and Cecro-
pia in Costa Rica. Biotropica 21:126-132.
. 1989b. Taxonomy of the Cecropia-inhabiting ants in
the Azteca alfari species group: evidence for two broadly
sympatric species. Contributions in Science, Natural
History Museum of Los Angeles County 412:1-16.
. 1991a. Azteca ants in Cecropia trees: taxonomy,
colony structure, and behavior. Pages 271-288 in C.
Huxley and D. Cutler, editors. Ant-plant interactions.
Oxford University Press, Oxford.
. 1991b. Taxonomy of the Cecropia-inhabiting Azteca
ants. Journal of Natural History 25:1571-1602.
-. 1996. Taxonomic characterization of some live-stem
Ameise. Jenaische Zeitschrift fur Medizin und
Naturwissenschaft 10:281-286.
—. 1880-1881. Die Imbauba und ihre Beschiitzer.inhabiting Azteca (Hymenoptera: Formicidae) in Costa
Rica, with special reference to the ants of Cordia
(Boraginaceae) and Triplaris (Polygonaceae). Journal of
Hymenoptera Research 5:131-156.
Longino, J. T., and P. Hanson. 1995. The ants (Formicidae).
Pages 588-620 in P. Hanson and I. Gauld, editors. The
Hymenoptera of Costa Rica. Oxford University Press,
Oxford.
Lumer, C. 1980. Rodent pollination of Blakea (Melas-
tomataceae) in a Costa Rican cloud forest. Brittonia
32:512-517.
Lumer, C., and R. Schoer. 1986. Pollination of Blakea austin-
smithii and B. penduliflora (Melastomataceae) by small
rodents in Costa Rica. Biotropica 18:363-364.
Machado, C. A., E. A. Herre, S. McCafferty, and
E. Bermingham. 1996. Molecular phylogenies of fig pol-
linating and non-pollinating wasps and the implications
for the origin and evolution of the fig-fig wasp mutual-
ism. Journal of Biogeography 23:531-542.
Madison, M. 1979. Protection of developing seeds in
neotropical Araceae. Aroideana 2:52-61.
Mazer, S. J., and N. T. Wheelwright. 1993. Fruit size and
shape: allometry at different taxonomic levels in bird-
dispersed plants. Evolutionary Ecology 7:556-575.
McDade, L. M., and S. Kinsman. 1980. The impact of floral
parasitism in two neotropical hummingbird-pollinated
plant species. Evolution 34:944-958.
McKey, D. 1975. The ecology of coevolved seed dispersal
systems. Pages 159-191 in L. E. Gilbert and P. H. Raven,
editors. Coevolution of animals and plants. University
of Texas Press, Austin.
. 1991. Phylogenetic analysis of the evolution of a
mutualism: Leonardoxa (Caesalpiniaceae) and its asso-
ciated ants. Pages 310-334 in C. R. Huxley and D. F.
Cutler, editors. Ant-plant interactions. Oxford Univer-
sity Press, Oxford.
Meeuse, B. J. D. 1975. Thermogenic respiration in aroids.
Annual Review of Plant Physiology 26: 117-126.
Milton, K. 1978. Behavioral adaptations to leaf-eating by the
mantled howler monkey (Alouatta palliata). Pages 535-
550 in G. G. Montgomery, editor. The ecology of arbo-
real folivores. Smithsonian Institution Press, Washing-
ton, D.C.
Milton, K., D. M. Windsor, D. W. Morrison, and M. A. Estribi.
1982. Fruiting phenologies of two neotropical Ficus
species. Ecology 63:752-762.
Montgomery, G. G., and M. E. Sunquist. 1978. Habitat selec-
tion and use by two-toed and three-toed sloths. Pages
329—360 in G. G. Montgomery, editor. The ecology of
arboreal folivores. Smithsonian Institution Press,
Washington, D.C.
Moore, L. A., and M. F. Willson. 1982. The effect of micro-
habitat, spatial distribution, and display size on dis-
persal ofLindera benzoin by avian frugivores. Canadian
Journal of Botany 60:557-560.
Miiller, F. 1876. Ueber das Haarkissen am Blattstiel der
Imbauba (Cecropia}, das Gemusebeet der Imbauba-
Kosmos 8:109-116.
Murawski, D. A. 1987. Floral resource variation, pollinator
response, and potential pollen flow in Psiguria
warscewiczii. Ecology 68:1273-1282.. 1995. Reproductive biology and genetics of tropical
trees from a canopy perspective. Pages 457-493 in M.
D. Lowman and N. M. Nadkarni, editors. Forest cano-
pies. Academic Press, San Diego.
Murray, D. R., editor. 1986. Seed dispersal. Academic Press,
Sydney.
Murray, K. G. 1986a. Avian seed dispersal of neotropical gap-
dependent plants. Ph.D. dissertation, University of
Florida, Gainesville.
. 1986b. Consequences of seed dispersal for gap-de-
pendent plants: relationships between seed shadows,
germination requirements, and forest dynamic pro-
cesses. Pages 187-198 in A. Estrada and T. H. Fleming,
editors. Frugivores and seed dispersal. Dr. W. Junk
Publishers, Dordrecht.
. 1987. Selection for optimal fruit crop size in bird-
dispersed plants. American Naturalist 129: 18-31.
-. 1988. Avian seed dispersal of three neotropical gap-
dependent plants. Ecological Monographs 58: 271—298.
Murray, K. G., P. Feinsinger, W. H. Busby, Y. B. Linhart,
J. H. Beach, and S. Kinsman. 1987. Evaluation of char-
acter displacement among plants in two tropical pol-
lination guilds. Ecology 68:1283-1293.
Murray, K. G., S. Russell, C. M. Picone, K. Winnett-Murray,
W. Sherwood, and M. L. Kuhlmann. 1994. Fruit laxa-
tives and seed passage rates in frugivores: consequences
for plant reproductive success. Ecology 75:989-994.
Nadkarni, N. M., and T. J. Matelson. 1989. Bird use of epi-
phyte resources in neotropical trees. Condor 91:891-
907.
Nagy, K. A., D. K. Odell, andR. S. Seymour. 1972. Tempera-
ture regulation by the inflorescence of Philodendron.
Science 178:1195-1197.
Nitecki, M. H. 1983. Coevolution. University of Chicago
Press, Chicago.
Pipkin, S. B., R. L. Rodriguez, and J. Leon. 1966. Plant host
specificity among flower-feeding neotropical Droso-
phila (Diptera: Drosophilidae). American Naturalist
100:135-156.
Podolsky, R. D. 1992. Strange floral attractors: pollinator
attraction and the evolution of plant sexual systems.
Science 258:791-793.
Poole, R. W., and B. J. Rathcke. 1979. Regularity, random-
ness and aggregation in flowering phenologies. Science
203:470-471.
Powell, G. V. N., and R. Bjork. 1995. Implications of
intratropical migration on reserve design: a case study
using Pharomachrus mocinno. Conservation Biology
9:354-362.
Price, M. V., and S. H. Jenkins. 1986. Rodents as seed consum-
ers and dispersers. Pages 191-235 in D. R. Murray, edi-
tor. Seed dispersal. Academic Press, Sydney.
Proctor, M., P. Yeo, and A. Lack. 1996. The natural history
of pollination. Timber Press, Portland, Oregon.
Queller, D. C., and K. F. Goodnight. 1989. Estimating relat-
edness using genetic markers. Evolution 43: 258-275.
Ramirez, W. 1970. Host specificity of fig wasps (Anga-
onidae). Evolution 24:680-691.
Raskin, I., A. Ehman, W. R. Melander, B. J. D. Meeuse. 1987.
Salicylic acid: a natural inducer of heat production in
Arum lillies. Science 237:1601-1602.
Rathcke, B. 1983. Competition and facilitation among plants
for pollination. Pages 305-329 in L. Real, editor. Polli-
nation biology. Academic Press, Orlando, Florida.
Real, L., editor. 1983. Pollination biology. Academic Press,
Orlando, Florida.
300 Plant-Animal Interactions