Rate of Secondary Succession in Forest Bird Communities

Abstract

JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.

Measuring the postfire resilience of a bird–vegetation system: a 28-year study in a Mediterranean oak woodland

“…When measured by the number of species that appear and disappear with time (without taking into account their place on the successional gradient), rate of turnover is classically supposed to decrease throughout secondary successions (Shugart and Hett 1973;Glowacinski and Järvinen 1975;Blondel 1979;Prodon 1992;Myster and Pickett 1994). However, we observed only a weak decrease of bird richness during our postfire succession, and no decrease in inter-annual species turnover.…”

A Comparison of Rate of Succession Over 18 Yr in 10 Contrasting Old Fields

“…is the number of species invading between year 1 and year t (Diamond 1969). Turnover is a simple modification of Sorensen's formula (Glowacinski and Jarvinen 1975) and may increase after a period of decline because of newly introduced species. Finally, we calculated lambda (A) for each year t after abandonment where A(t) = ln[(n 1 -n 1 np,)ln,]lt and performed a linear regression analysis on ln[A(t)] vs. ln(t) (Shugart and Hett 1973).…”

“…Comparisons between contrasting successions at various scales is critical for understanding succession (Shugart andHett 1973, Glowacinski andJarvinen 197 5, Lewis 1978). For example, communities differ ' Manuscript received 6 July 1992; revised 12 April 1993; accepted 6 July 1993. greatly in the rate of plant species change, which may depend on local conditions such as soil moisture (Shugart and Hett 1973, Glowacinski and Jarvinen 1975Helle and Monkkonen 1985 or amount of organi~ matter (Major 1974, Glowacinski andJarvinen 1975). Successions should show a slowing or decrease in plant species change with time (but see Facelli and D'Angela 1990) with periodic fluctuations (Armesto et al 1991 ).…”

“…Hypothesis 1. -Old field plant species change will decrease monotonically with time (Odum 1969, Glowacinski and Jarvinen 1975, Bornkamm 1981. Euclidean distance between consecutive years in ordination space (Austin 1977, Dunn and Sharitz 198 7), species turnover (Diamond 1969), and regression of the fraction of the initial species present vs. years of succession (Shugart and Hett 1973) should all show this trend.…”

“…Euclidean distance between consecutive years in ordination space (Austin 1977, Dunn and Sharitz 198 7), species turnover (Diamond 1969), and regression of the fraction of the initial species present vs. years of succession (Shugart and Hett 1973) should all show this trend. Because each index highlights a different aspect of successional change and because conclusions concerning plant successional change can be influenced by methodologies (Helle and Monkkonen 1985), a comparison using several different computations is warranted (Major 1974, Glowacinski and Jarvinen 1975, Veno 1976, Bornkamm 1981, Helle and Monkkonen 1985.…”