Arid
DOI10.1111/j.1654-1103.2012.01444.x
Land-use impact on the growth and survival of seedlings and saplings in West African savannas
Jurisch, Katrin1,2; Hahn, Karen1,2; Wittig, Ruediger1,2; Bernhardt-Roemermann, Markus1,3
通讯作者Jurisch, Katrin
来源期刊JOURNAL OF VEGETATION SCIENCE
ISSN1100-9233
EISSN1654-1103
出版年2013
卷号24期号:1页码:101-112
英文摘要

Question In frequently disturbed habitats such as savannas, survival of seedlings and saplings depends on the species-specific ability to persist for a long time and to re-sprout following disturbances that are damaging to individuals. This physiological ability increases with increasing stem diameter, as re-sprouting requires sufficient nutrient reserves. Are survival and growth of seedlings and saplings of woody savanna species related to habitat conditions and land-cover type?


Location Semi-arid savannas representing different site conditions and land-use practices in North Benin, West Africa.


Methods For individuals of 18 common woody species <1-m tall, basal diameter and height were repeatedly measured in five censuses from 2008 to 2010 in the land-cover types non-arable sites, fallows and protected areas. We used multistate capturerecapture models to estimate survival and transition probabilities between diameter classes.


Results We detected six groups of species with similar survival and transition probabilities. For one of these groups we found no correlation to land use, whereas the other groups comprise species with distinct preferences for different land-cover types. Most species developed better in the communal area compared to the protected area. For five species (one shrub and four trees), we detected an extremely low transition probability for the latter land-cover type.


Conclusion For some species groups, differences in plant performance were explained by a human-caused opening of the canopy that is beneficial for germination of seeds and enhances survival of juveniles by reducing the competition for light, water and nutrients. Other species showed their best demographic performance in the communal area on non-arable sites with unfavourable environmental conditions and resulting small-scale heterogeneity (mosaic of bare ground and areas with low herbaceous cover), whereas five species are likely to decline in the protected area.


英文关键词Benin Diameter growth Land-cover type Multistate capture-recapture models Permanent plots Population dynamics Woody plants
类型Article
语种英语
国家Germany
收录类别SCI-E
WOS记录号WOS:000312156600012
WOS关键词AUSTRALIAN TROPICAL SAVANNA ; SIZE CLASS DISTRIBUTIONS ; TIMBER FOREST PRODUCTS ; BURKINA-FASO ; POPULATION-STRUCTURE ; WOODY-PLANTS ; EVOLUTIONARY ECOLOGY ; DETARIUM-MICROCARPUM ; CAPTURE-RECAPTURE ; MODEL SELECTION
WOS类目Plant Sciences ; Ecology ; Forestry
WOS研究方向Plant Sciences ; Environmental Sciences & Ecology ; Forestry
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/178739
作者单位1.Goethe Univ Frankfurt, Inst Ecol Evolut & Divers, D-60438 Frankfurt, Germany;
2.Biodivers & Climate Res Ctr BiK F, D-60325 Frankfurt, Germany;
3.Univ Regensburg, Fac Biol & Preclin Med, Inst Bot, D-93040 Regensburg, Germany
推荐引用方式
GB/T 7714
Jurisch, Katrin,Hahn, Karen,Wittig, Ruediger,et al. Land-use impact on the growth and survival of seedlings and saplings in West African savannas[J],2013,24(1):101-112.
APA Jurisch, Katrin,Hahn, Karen,Wittig, Ruediger,&Bernhardt-Roemermann, Markus.(2013).Land-use impact on the growth and survival of seedlings and saplings in West African savannas.JOURNAL OF VEGETATION SCIENCE,24(1),101-112.
MLA Jurisch, Katrin,et al."Land-use impact on the growth and survival of seedlings and saplings in West African savannas".JOURNAL OF VEGETATION SCIENCE 24.1(2013):101-112.
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