Comparisons of Related Rare and Common Species in the Study of Plant Rarity

Conservation Biology - Tập 13 Số 3 - Trang 493-498 - 1999
R. L. Bevill1, Svaťa M. Louda1
1School of Biological Sciences, University of Nebraska, Lincoln, NE 68588-0118, U.S.A.

Tóm tắt

Abstract:Conservation of rare plant populations is an important dimension of the preservation of biodiversity. Yet the database underlying both the theoretical understanding and management of rare—in contrast to common—plant species is scattered, unfocused, and conceptually weak. Our review of studies comparing attributes of rare vascular plants with those of closely related, more common relatives found fewer studies than expected (n= 38) and no consistency in the attributes measured, which precluded further assessment of pattern. Only 10% of 71 response variables compared were reported in more than four studies, and most of the traits ( 79%) were compared in only one or two studies. Improvement of comparisons of rare and common species requires standardization of attributes measured among studies. Although experiments evaluating hypothesized limiting factors are desirable, at a minimum all studies should include population densities and life table schedules. Demographic parameters provide detailed data, required for scientific management of specific rare plants, and extensive data, required for meta‐analyses and detection of general patterns in rarity.

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Tài liệu tham khảo

10.2307/2845128

10.1111/j.1558-5646.1974.tb00794.x

10.2307/2484223

Baskin J. M., 1986, Some considerations in evaluating and monitoring populations of rare plants in successional environments., Natural Areas Journal, 6, 26

Baskin J. M., 1997, The comparative autecology of endemic, globally‐rare, and geographically‐widespread, common plant species: three case studies., The Southwestern Naturalist, 42, 384

10.2307/2419201

Caswell H., 1989, Matrix population models: Construction, analysis and interpretation

10.2307/2419603

Falk D. A., 1991, Genetics and conservation of rare plants, 10.1093/oso/9780195064292.001.0001

10.2307/1221904

10.2307/2260308

10.1007/978-1-4684-6426-9_2

10.1002/j.1537-2197.1988.tb12155.x

10.1111/j.0014-3820.2004.tb01713.x

10.1002/j.1537-2197.1977.tb11930.x

10.1086/285428

Hamilton C. W., 1990, Variations on a distylous theme in mesoamerican Psychotria subgenus Psychotria (Rubiaceae)., Memoirs of the New York Botanic Garden, 55, 62

Harper J. L., 1977, The population biology of plants

Harper K. T., 1979, Some reproductive and life history characteristics of rare plants and implications of management., Great Basin Naturalist Memoirs, 3, 129

10.1139/b93-082

10.1007/BF02067268

10.1016/0006-3207(87)90033-4

10.1002/j.1537-2197.1988.tb08823.x

10.1146/annurev.es.16.110185.002311

10.1016/0169-5347(93)90259-R

Kunin W. E. and K. J. Gaston editors. 1997. The biology of rarity: causes and consequences of rare‐common differences. Chapman and Hall London.

10.1046/j.1523-1739.1997.95469.x

10.2307/1937084

10.1126/science.3420403

10.1002/j.1537-2197.1993.tb13846.x

10.1016/B978-0-12-440405-2.50008-7

10.1017/CBO9780511623325.007

10.2307/1940645

10.1146/annurev.es.15.110184.000433

10.1111/j.1558-5646.1988.tb04130.x

McIntyre S., 1996, Comparison of a common, rare and declining plant species in the Asteraceae: possible causes of rarity., Pacific Conservation Biology, 2, 177, 10.1071/PC960177

10.1002/j.1537-2197.1983.tb10847.x

10.1111/j.1523-1739.1990.tb00267.x

10.2307/2996257

10.1002/j.1537-2197.1989.tb15098.x

Primack R. B., 1980, Phenotypic variation of rare and widespread species of Plantago., Rhodora, 82, 87

10.1111/j.1442-9993.1992.tb00780.x

10.1002/j.1537-2197.1994.tb15571.x

10.1007/BF00344992

Rabinowitz D., 1981, The biological aspects of rare plant conservation, 205

10.2307/2442788

10.1002/j.1537-2197.1985.tb08428.x

10.1002/j.1537-2197.1979.tb06293.x

10.2307/1938322

Rabinowitz D., 1989, The persistence of rare prairie grasses in Missouri: environmental variation buffered by reproductive output of sparse species., The American Naturalist, 136, 328

10.1139/b94-090

Ricklefs R. E. and D. Schluter editors. 1993. Species diversity in ecological communities: historical and geographical perspectives. University of Chicago Press Chicago.

10.1086/297276

10.2307/1941718

10.2307/2419726

10.1086/297147

Wright S., 1969, Evolution and the genetics of populations. Volume 2. The theory of gene frequencies

10.1046/j.1523-1739.1996.10041220.x

10.1046/j.1365-2540.1998.00304.x