Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/j.1442-9993.2012.02385.x |
Spatial distribution of Tephrocactus aoracanthus (Lem.) Lem. in relation to shrubs in the hyperarid regions of west-central Argentina | |
Almiron, Martin; Martinez Carretero, Eduardo | |
通讯作者 | Almiron, Martin |
来源期刊 | AUSTRAL ECOLOGY |
ISSN | 1442-9985 |
出版年 | 2013 |
卷号 | 38期号:2页码:131-138 |
英文摘要 | The spatial intraspecific and interspecific distribution of Tephrocactus aoracanthus (Lem.) Lem. was studied using univariate and bivariate point pattern analysis, at landscape scale in four different physiographic units and at microscale in terms of the shrubs found in those units. The influence of shrubs on photosynthetically active radiation and on soil temperature under their canopies was analysed. Results show a high environmental variability in light and temperature under shrubs that generally has no influence on the distribution of T.aoracanthus. Apparently, this cactus has great ability to adapt to different conditions of both photosynthetically active radiation and temperature. However, intraspecific distribution was highly clustered in all physiographic units, independently of bushes. Possibly, the mode of seed dispersal and the rooting of cladodes at small scale are the main processes that determine the strong intraspecific clustering of T.aoracanthus. |
英文关键词 | environmental heterogeneity intra interspecific association WiegandMoloney’s O(r) statistics |
类型 | Article |
语种 | 英语 |
国家 | Argentina |
收录类别 | SCI-E |
WOS记录号 | WOS:000316623400002 |
WOS关键词 | POINT PATTERN-ANALYSIS ; PLANT MIMOSA-LUISANA ; CHIHUAHUAN DESERT ; NURSE-PLANTS ; POSITIVE INTERACTIONS ; NEOBUXBAUMIA-TETETZO ; POPULATION-DYNAMICS ; MEXICO ; CACTUS ; COMMUNITIES |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/176056 |
作者单位 | Natl Council Sci & Technol Res, Inst Argentino Invest Zonas Aridas, RA-5500 Mendoza, Argentina |
推荐引用方式 GB/T 7714 | Almiron, Martin,Martinez Carretero, Eduardo. Spatial distribution of Tephrocactus aoracanthus (Lem.) Lem. in relation to shrubs in the hyperarid regions of west-central Argentina[J],2013,38(2):131-138. |
APA | Almiron, Martin,&Martinez Carretero, Eduardo.(2013).Spatial distribution of Tephrocactus aoracanthus (Lem.) Lem. in relation to shrubs in the hyperarid regions of west-central Argentina.AUSTRAL ECOLOGY,38(2),131-138. |
MLA | Almiron, Martin,et al."Spatial distribution of Tephrocactus aoracanthus (Lem.) Lem. in relation to shrubs in the hyperarid regions of west-central Argentina".AUSTRAL ECOLOGY 38.2(2013):131-138. |
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