Treefall Gaps and Plant Species Diversity in Forests 207
Condit, R., Ashton, P.S., Baker, P.et al. (2000) Spatial
patterns in the distribution of tropical tree species.
Science288, 1414–1418.
Connell, J.H. (1978) Diversity in tropical rainforests and
coral reefs.Science199, 1302–1310.
Connell, J.H. (1979) Tropical rain forests and coral reefs
as open nonequilibrium systems. In R.M. Anderson,
L.R. Taylor, and B.D. Turner (eds), Population
Dynamics. Blackwell, Oxford, pp. 141–163.
Croat,T.B. (1978)Flora of Barro Colorado Island.Stanford
University Press, Stanford.
Dalling, J.W., Hubbell, S.P., and Silvera, K. (1998) Seed
dispersal, seedling establishment and gap partitioning
among tropical pioneer trees.Journal of Ecology86,
674–689.
Dalling, J.W., Winter, K., Nason, J.D., Hubbell, S.P.,
Murawski, D.A., and Hamrick, J.L. (2001) The
unusual case ofAlseis blackiana: a shade-persistent
pioneer tree?Ecology82, 933–945.
Denslow, J.S. (1980) Gap partitioning among trop-
ical rainforest trees. Biotropica (supplement) 12,
47–55.
Denslow, J.S. (1987) Tropical rainforest gaps and tree
species diversity.Annual Review of Ecolog yand S ystem-
atics18, 431–451.
Denslow, J.S. (1990) Disturbance and diversity in
tropical rainforests: the density effect. Ecological
Applications5, 962–968.
Denslow, J.S. and Hartshorn, G.S. (1994) Tree-fall
ga penvironments and forest dynamic processes.
In L.A. McDade, K.S. Bawa, H.A. Hespenhide, and
G.S. Hartshorn (eds),La Selva: Ecolog yand Natural
Histor yof Neotropical Rain Forest. University of
Chicago Press, Chicago, pp. 120–127.
Denslow, J.S., Newell, E., and Ellison, A.M. (1991) The
effect of understory palms and cyclanths on the
growth and survival ofIngaseedlings.Biotropica23,
225–234.
DeWalt, S.J., Schnitzer, S.A., and Denslow, J.S. (2000)
Density and diversity of lianas along a chronose-
quence in a central Panamanian lowland forest.
Journal of Tropical Ecology16, 1–19.
Dirzo, R., Horvitz, C.C., Quevedo, H., and Lopez, M.A.
(1992) The effects of ga psize and age on the under-
story herb community of a tropical Mexican rain
forest.Journal of Ecology80, 809–822.
Farris-Lopez, K., Denslow, J.S., Moser, B., and
Passmore, H. (2004) Influence of a common palm,
Oenocarpus mapora, on seedling establishment in a
tropical moist forest in Panama.Journal of Tropical
Ecology20, 429–438.
Fraver, S., Brokaw, N.V.L., and Smith, A.P. (1998) Delim-
iting the ga p phase in the growth cycle of a Panama-
nian forest.Journal of Tropical Ecology14, 673–681.
Gartner, B.L. (1991) Structural stability and architec-
ture of vines vs shrubs of poison oak,Toxicodendron
diversilobum.Ecology72, 2005–2015.
Gentry, A.H. (1991) The distribution and evolution
of climbing plants. In F.E. Putz and H.A. Mooney
(eds),The Biolog yof Vines. Cambridge University Press,
Cambridge, pp. 3–49.
Gentry, A.H. and Dodson, C. (1987) Contribution of
nontrees to species richness of a tropical rain forest.
Biotropica19, 149–156.
Gilbert,B.,Wright,S.J.,Muller-Landau,H.C.,Kitajima,K.,
and Hernandez, A. (2006) Life history trade-offs in
tropical trees and lianas.Ecology87, 1281–1288.
Goldblum, D. (1997) The effects of treefall gaps on
understory vegetation in New York State.Journal of
Vegetation Science8, 125–132.
Grinnell, J. (1917) Field tests and theories concern-
ing distributional control.American Naturalist51,
115–128.
Hartshorn, G.S. (1978) Tree falls and tropical forest
dynamics. In P.B. Tomlinson and M.H. Zimmermann
(eds),Tropical Trees as Living Systems. Cambridge
University Press, Cambridge, pp. 617–638.
Hartshorn, G.S. (1980) Neotropical forest dynamics.
Biotropica (Supplement)12, 23–30.
Hubbell, S.P. (1999)Tropical tree richness and resource-
based niches.Science285, 1495a.
Hubbell, S.P. and Foster, R.B. (1986) Canopy gaps and
the dynamics of a neotropical forest. In M.J. Crawley
(ed.),Plant Ecology. Blackwell Scientific Publications,
Oxford, pp. 77–96.
Hubbell, S.P., Foster, R.B., O’Brien, S.T.et al. (1999)
Light-ga pdisturbances, recruitment limitation, and
tree diversity in a neotropical forest.Science283,
554–557.
Huston, M.A. (1979) A general hypothesis of species
diversity.American Naturalist113, 81–101.
Inouye, R.S., Huntly, N., and Wasley, G.A. (1997)
Effects of pocket gophers (Geomys bursarius) on micro-
topographic variation.Journal of Mammalogy78,
1144–1148.
Jones, E.W. (1945) The structure and reproduction of
the virgin forests of the north temperate zone.New
Phytologist44, 130–148.
Kitajima, K. (1994) Relative importance of photosyn-
thetic traits and allocation patterns as correlates of
seedling shade tolerance of 13 tropical trees.Oecologia
98, 419–428.
Kobe, R.K. (1999) Light gradient partitioning among
tropical tree species through differential seedling
mortality and growth.Ecology80, 187–201.
Levey,D.J.(1988)SpatialandtemporalvariationinCosta
Rican fruit and fruit-eating bird abundance.Ecological
Monographs58, 251–269.