Species and Vegetation Responses to Prescribed Fire in a Long-Unburned, Endemic-Rich Lake Wales Ridge Scrub

IF 0.7 4区生物学 Q4 PLANT SCIENCES

Journal of the Torrey Botanical Society Pub Date : 2003-10-01 DOI:10.2307/3557545

C. Weekley, E. Menges

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引用次数: 45

Abstract

WEEKLEY, C. W. AND E. S. MENGES (Archbold Biological Station, P.O. Box 2057, Lake Placid, FL 33862). Species and vegetation responses to prescribed fire in a long-unburned, endemic-rich Lake Wales Ridge scrub. J. Torrey Bot. Soc. 130: 265-285. 2003.-We studied the effects of prescribed fire on a long-unburned oak scrub on the Lake Wales Ridge of central Florida. We quantified postburn survival of 12 endemic plants by censusing tagged individuals before and after fire, assessed postfire changes in the composition and structure of the scrub community, and investigated the effect of postfire cover changes in subcanopy, shrub, litter, lichen and Polygonella myriophylla on herb abundance. We found that eight of the 12 endemics had postburn resprouting rates varying from -15% to 98%, while four species were killed by fire. Postburn reductions in subcanopy, shrub, litter, lichen and P. myriophylla cover were paralleled by increases in the abundance of scrub herbs. While some scrub herbs resprouted, most postburn increases in herb abundance were due to seedling recruitment.

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物种和植被对规定火灾的反应在一个长期未燃烧，地方性丰富的威尔士湖岭灌丛

威克利，C. W.和E. S.蒙格斯(阿奇博尔德生物站，邮编:2057，普莱西德湖，佛罗里达州33862)。物种和植被对规定火灾的反应在一个长期未燃烧的，地方性丰富的威尔士湖岭灌丛。托里·博特。社会学。130:265-285。2003.-我们研究了在佛罗里达州中部的威尔士湖山脊上一处长期未燃烧的橡树灌木丛中使用规定的火的影响。通过对12种特有植物在火灾前后的标记个体进行普查，量化了它们的火灾后存活率，评估了火灾后灌丛群落组成和结构的变化，并研究了林次、灌木、凋落物、地衣和肉芽蓼藻等植被覆盖度的变化对草本植物丰度的影响。我们发现，12种特有物种中有8种的烧伤后再生率从-15%到98%不等，而4种被火灾杀死。燃烧后冠层、灌木、凋落物、地衣和肉豆杉盖度的减少与灌丛草本丰富度的增加是平行的。虽然一些灌丛草本植物重新发芽，但大多数草本植物丰度的增加是由于幼苗的补充。

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来源期刊

Journal of the Torrey Botanical Society 生物-植物科学

CiteScore

0.70

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of the Torrey Botanical Society (until 1997 the Bulletin of the Torrey Botanical Club), the oldest botanical journal in the Americas, has as its primary goal the dissemination of scientific knowledge about plants (including thallopyhtes and fungi). It publishes basic research in all areas of plant biology, except horticulture, with an emphasis on research done in, and about plants of, the Western Hemisphere.