Spatial dispersion of trees in an old-growth temperate hardwood forest over 60 years of succession

Abstract An analysis of spatial dispersion was conducted for individual tree species in the old-growth forest at the Davis-Purdue Research Forest in Indiana. This 20.6 ha stand has been left largely undisturbed by exogenous factors since its acquisition by Purdue in 1917. It is the only long-term study plot of its size for a temperate hardwood forest with x–y coordinates (rectangular plot) for all species above 10 cm diameter. Full censuses have been conducted spanning 60 years (1926, 1976 and 1986). Ripley’s L(t) function revealed that most species are characterized by some form of aggregation, agreeing with a prior evaluation from 1981. Heterogeneity of spatial structure was evident between two large plots, indicating that differences in site quality and history had influenced spatial structure. Shade-intolerant species were numerically dominant and spatially aggregated in 1926 but have declined over the 60-year interval and become more random in spatial dispersion. Shade-tolerant species have increased in number and become more aggregated over time, or they exhibit little change in spatial structure. Examples of the latter include Acer saccharum and Ulmus americana, species that experienced explosive population growth. These contrasting patterns are masked by stand-level patterns that show a trend toward uniformity over the same time frame. These data reveal that changes in dispersion accompany the demographic failure experienced by numerous tree species in Central Hardwood old-growth stands, and these changes may feed back into a negative population cycle and further impede regeneration. The simultaneous manipulation of dispersion and density should be considered as a tool for influencing forest succession and promoting regeneration of desired tree species.

[1]  J. T. Curtis,et al.  The Vegetation of Wisconsin , 1962 .

[2]  C. Lorimer,et al.  Tall understorey vegetation as a factor in the poor development of oak seedlings beneath mature stands , 1994 .

[3]  Peter Kareiva,et al.  Spatial scale mediates the influence of habitat fragmentation on dispersal success: Implications for conservation , 1992 .

[4]  G. Nowacki,et al.  Historical variation in fire, oak recruitment, and post-logging accelerated succession in central Pennsylvania , 1992 .

[5]  R. Tibshirani,et al.  An introduction to the bootstrap , 1993 .

[6]  W. McShea,et al.  Oak forest ecosystems: ecology and management for wildlife. , 2002 .

[7]  M. Abrams,et al.  Dendroecological Analysis of Successional Dynamics for a Presettlement- Origin White-Pine-Mixed-Oak Forest in the Southern Appalachians, USA , 1995 .

[8]  M. Jackson,et al.  A Decade of Change in an Old-growth Beech-Maple Forest in Indiana , 1977 .

[9]  Chris J. Peterson,et al.  An unexpected change in spatial pattern across 10 years in an aspen-white-pine forest , 1995 .

[10]  W. Boggess,et al.  Brownfield Woods, Illinois: Woody Vegetation and Changes Since 1925 , 1964 .

[11]  G. Cottam,et al.  The Successional Status of a Southern Wisconsin Oak Woods , 1985 .

[12]  W. McShea,et al.  Fire history and postsettlement disturbance. , 2002 .

[13]  Elaine Kennedy Sutherland,et al.  Defining species guilds in the Central Hardwood Forest, USA , 2000, Plant Ecology.

[14]  E. C. Pielou.  A single mechanism to account for regular, random and aggregated populations. , 1960 .

[15]  E. Russell.  Indian-set fires in the forests of the northeastern United States , 1983 .

[16]  George R. Stephens,et al.  Influence of crown class and shade tolerance on individual tree development during deciduous forest succession in Connecticut, USA , 1993 .

[17]  G. Parker,et al.  Distribution of Biomass in an Indiana Old-growth Forest from 1926 to 1992 , 1998 .

[18]  W. C. Ashby,et al.  Composition and Structure of an Old-Growth Forest Remnant in Unglaciated Southwestern Illinois , 1971 .

[19]  G. B. Williamson.  Pattern and Seral Composition in an Old‐growth Beech‐Maple Forest , 1975 .

[20]  Jeffrey S. Ward,et al.  New derivation reduces bias and increases power of Ripley’s L index , 1999 .

[21]  J. Nason,et al.  The influence of seed dispersal mechanisms on the genetic structure of tropical tree populations , 1993 .

[22]  S. A. Whipple.  Population Dispersion Patterns of Trees in a Southern Louisiana Hardwood Forest , 1980 .

[23]  Charles F. Cooper,et al.  Pattern in Ponderosa Pine Forests , 1961 .

[24]  Stephen P. Hubbell,et al.  Tree Dispersion, Abundance, and Diversity in a Tropical Dry Forest , 1979, Science.

[25]  G. Parker,et al.  Gap Phase Dynamics of a Mature Indiana Forest , 1985 .

[26]  G. Parker,et al.  Spatial Dispersion of Woody Regeneration in an Old-Growth Forest , 1989 .

[27]  P. Goebel,et al.  Development of mixed-oak forests in southeastern Ohio: a comparison of second-growth and old-growth forests , 1996 .

[28]  R. R. Rhodes,et al.  Regional Silviculture of the United States , 1962 .

[29]  George R. Stephens,et al.  Crown class transition rates of maturing northern red oak (Quercus rubra L.) , 1994 .

[30]  D. Denuyl.  Indiana's old growth forests , 1953 .

[31]  B. Ripley.  Modelling Spatial Patterns , 1977 .

[32]  B. Mccarthy,et al.  Composition, structure, and disturbance history of Crabtree Woods: an old-growth forest of western Maryland' , 1996 .

[33]  S. Hubbell,et al.  Spatial patterns in the distribution of tropical tree species. , 2000, Science.

[34]  Michael J. Crawley,et al.  Colonization, Succession, and Stability , 1988 .

[35]  A. A. Lindsey,et al.  The Forest Types of Indiana and a New Method of Classifying Midwestern Hardwood Forests , 1969 .

[36]  R. Hicks.  Ecology and Management of Central Hardwood Forests , 1998 .

[37]  Mark R. T. Dale,et al.  Spatial Pattern Analysis in Plant Ecology: Spatial Pattern Analysis in Plant Ecology , 1999 .

[38]  Stephen J. Wright,et al.  Light-Gap disturbances, recruitment limitation, and tree diversity in a neotropical forest , 1999, Science.

[39]  E. Renshaw,et al.  Spatial pattern of trees in kerangas forest, Sarawak , 1986, Vegetatio.

[40]  J. Hamrick,et al.  Spatial and genetic structure of two sandhills oaks: Quercus laevis and Quercus margaretta (Fagaceae) , 1994 .

[41]  B. Mccarthy,et al.  Vegetation patterns and structure of an old-growth forest in southeastern Ohio , 1987 .

[42]  A. M. Laessle,et al.  Spacing and Competition in Natural Stands of Sand Pine , 1965 .

[43]  F. Clark.  The central hardwood forest , 1989 .

[44]  Benjamin A. Roach,et al.  Even-aged silviculture for upland central hardwoods , 1968 .

[45]  G. Shedler,et al.  Simulation of Nonhomogeneous Poisson Processes by Thinning , 1979 .

[46]  J. S. Fralish,et al.  Comparison of Presettlement, Second-growth and Old-growth Forest on Six Site Types in the Illinois Shawnee Hills , 1991 .

[47]  J. D. Barton,et al.  Donaldson's Woods: Two Decades of Change , 1974 .

[48]  G. A. Yarranton,et al.  Spatial dynamics of a primary succession: nucleation , 1974 .

[49]  C. Villagrán,et al.  A comparison of spatial patterns of trees in some tropical and temperate forests , 1986 .

[50]  H. Fowells.  Silvics of forest trees of the United States. , 1965 .

[51]  Kamaljit S. Bawa,et al.  La Selva: ecology and natural history of a neotropical rain forest. , 1995 .

[52]  W. C. Ashby,et al.  Sugar Maple Invasion of an Old-growth Oak-hickory Forest in Southwestern Illinois , 1992 .

[53]  George R. Parker,et al.  Long-term spatial dynamics in an old-growth deciduous forest , 1996 .

[54]  N. Christensen.  Changes in Structure, Pattern and Diversity Associated with Climax Forest Maturation in Piedmont, North Carolina , 1977 .

[55]  G. Parker,et al.  Replacement of Ulmus americana L. in a Mature East-Central Indiana Woods , 1983 .

[56]  G. H. Hepting.  Diseases of forest and shade trees of the United States. , 1971 .

[57]  Paul S. Johnson,et al.  The Ecology and Silviculture of Oaks , 2002 .

[58]  G. Parker,et al.  Tree dynamics in an old-growth, deciduous forest , 1985 .

[59]  Darrin L. Rubino,et al.  Composition, structure and dynamics of Dysart Woods, an old-growth mixed mesophytic forest of southeastern Ohio , 2001 .

[60]  E. B. Moser,et al.  Fire-induced changes in Quercus laevis spatial pattern in Florida sandhills , 1989 .