HURRICANE HUGO - DAMAGE TO A TROPICAL RAIN-FOREST IN PUERTO-RICO

被引：94

作者：

BASNET, K

LIKENS, GE

SCATENA, FN

LUGO, AE

机构：

[1] Institute of Ecosystem Studies, The New York Botanical Garden, Millbrook

[2] Department of Biological Sciences, Rutgers University

[3] USDA Forest Service, Institute of Tropical Forestry

来源：

JOURNAL OF TROPICAL ECOLOGY | 1992年 / 8卷

基金：

美国国家科学基金会;

关键词：

DISTURBANCE; DOMINANT SPECIES; HURRICANE HUGO; PUERTO-RICO; TABONUCO; TROPICAL RAIN FOREST;

D O I：

10.1017/S0266467400006076

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Hurricane Hugo of September 1989 caused severe damage to the rain forest in the north-east corner of Puerto Rico. We assessed the severity of damage distributed in space, species, and size-classes of trees in the Bisley Watersheds of the Luquillo Experimental Forest. We analyzed pre- and post-hurricane data for vegetation from transects established in 1987 and 1988. The severity of damage was significantly greater in valleys than on ridges and slopes. All the species except Dacryodes excelsa, Sloanea berteriana, and Guarea guidonia showed 100% severe damage. Large trees (> 70 cm DBH) were highly susceptible to hurricane damage, but there was no clear pattern in the small size-classes. D. excelsa (tabonuco) was the most resistant to damage by the hurricane. Tabonuco which has extensive root-grafts and root anchorage to bedrock and subsurficial rocks, apparently can survive frequent hurricanes and continue as a dominant species in this montane tropical rain forest. The high frequency of hurricanes, which can override other ecological and topographic factors, may largely determine the overall spatial pattern of species in this rain forest.

引用

页码：47 / 55

页数：9

共 30 条

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