Arid
DOI10.1111/jvs.12139
The relative importance of solar radiation and soil origin in cactus seedling survivorship at two spatial scales: plant association and microhabitat
Garcia-Chavez, Juan H.; Montana, Carlos1; Perroni, Yareni3; Sosa, Vinicio J.1; Garcia-Licona, Jose B.2
通讯作者Montana, Carlos
来源期刊JOURNAL OF VEGETATION SCIENCE
ISSN1100-9233
EISSN1654-1103
出版年2014
卷号25期号:3页码:668-680
英文摘要

Question


What is the relative importance of solar radiation intensity and soil origin for cactus establishment at the spatial scales of microhabitat and plant association?


Location


Tehuacan-Cuicatlan region, central Mexico.


Methods


The seedling survivorship of Myrtillocactus geometrizans, Neobuxbaumia tetetzo and Opuntia pilifera was assessed. A garden experiment was conducted involving two light treatments (direct solar radiation and artificial shade) for seedlings growing in soil from different microhabitats (under the canopy of a Parkinsonia praecox nurse plant and in an open area) from three plant associations (tetechera, sotolinera and mezquitera) in a semi-arid inter-tropical ecosystem. It was predicted that seedling survival would be higher: (1) under the artificial shade treatment; (2) in soil from the microhabitat under the canopy of the nurse tree; (3) in soil from the plant association with the highest concentrations of carbon (C), nitrogen (N) and phosphorus (P); and (iv) in the species with the largest seed mass.


Results


Seedlings of the three species survived better in the shade. Despite the fact that soil taken under nurse plants has a higher concentration of nutrients than that from open areas, seedling survivorship did not differ between these microhabitats. Opuntia pilifera, the species with higher seed mass, survived better than M.geometrizans and N.tetetzo, whose seedling survival did not differ. Seedling survivorship differed between soils taken from the different plant associations. Higher survival rates were observed in soil from plant associations with the lowest concentration of total and available P (i.e. sotolinera and tetechera) but with a high concentration of C, total N, nitrate and ammonium.


Conclusions


The relative importance of shade and soil origin on seedling survivorship depends on the spatial scale. At the microhabitat level, shade is crucial for seedling establishment, whereas soil type is not. However, soil seems important at the plant association scale. An adaptation to the most common habitat of the Zapotitlan Valley, where soil has high quantities of Ca (as carbonate), little available P but relatively high available N, could explain the better early cactus seedling survivorship in the tetechera and sotolinera.


英文关键词Myrtillocactus geometrizans Common garden experiment Seedling survivorship Tehuacan-Cuicatlan Spatial scales Nitrogen Phosphorus Neobuxbaumia tetetzo Parkinsonia praecox Opuntia pilifera
类型Article
语种英语
国家Mexico
收录类别SCI-E
WOS记录号WOS:000334184300007
WOS关键词RESOURCE-ISLAND SOILS ; MIMOSA-LUISANA ; SONORAN DESERT ; NURSE PLANTS ; PHOTOSYNTHETIC METABOLISM ; PACHYCEREUS-PRINGLEI ; NEOBUXBAUMIA-TETETZO ; CHIHUAHUAN DESERT ; SPECIES RICHNESS ; COLUMNAR CACTUS
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/2XILL650/183726
作者单位1.AC, Inst Ecol, Xalapa 91000, Veracruz, Mexico;
2.Benemerita Univ Autonoma Puebla, Escuela Biol, Puebla 72570, Mexico;
3.Univ Veracruzana, Inst Biotecnol & Ecol Aplicada, Xalapa 91090, Veracruz, Mexico
推荐引用方式
GB/T 7714
Garcia-Chavez, Juan H.,Montana, Carlos,Perroni, Yareni,et al. The relative importance of solar radiation and soil origin in cactus seedling survivorship at two spatial scales: plant association and microhabitat[J],2014,25(3):668-680.
APA Garcia-Chavez, Juan H.,Montana, Carlos,Perroni, Yareni,Sosa, Vinicio J.,&Garcia-Licona, Jose B..(2014).The relative importance of solar radiation and soil origin in cactus seedling survivorship at two spatial scales: plant association and microhabitat.JOURNAL OF VEGETATION SCIENCE,25(3),668-680.
MLA Garcia-Chavez, Juan H.,et al."The relative importance of solar radiation and soil origin in cactus seedling survivorship at two spatial scales: plant association and microhabitat".JOURNAL OF VEGETATION SCIENCE 25.3(2014):668-680.
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