干旱区生态环境知识资源中心(Arid): Environmental correlates of seed weight of tropical semi-arid woody species

Arid

DOI	10.1007/s11104-019-04341-1
	Environmental correlates of seed weight of tropical semi-arid woody species
	Costa, Adriana dos Santos 1; Stropp, Juliana 1; de Carvalho, Nicoffi Albuquerque 1; Alves-Martins, Fernanda 2; Ladle, Richard J.1; Malhado, Ana C. M.1
通讯作者	Costa, Adriana dos Santos
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2020
卷号	446 期号:1-2 页码:369-378
英文摘要	Aims The survival and distribution of plant species in the extreme environmental conditions of semi-arid regions is strongly dependent on traits associated with drought resistance. Seed weight may be particularly important, since larger seeds are predicted to promote survival in harsh environments, especially those of low soil moisture. Here, we test this hypothesis using data on the seed weight of 277 woody plant species in the semi-arid Caatinga biome of northeast Brazil. Methods We used Structural Equation Models (SEM) to test for associations between seed weight and biophysical conditions, including temperature, precipitation, climatic seasonality, soil-vegetation interaction and soil compaction. Results Species occurrence data were geographically biased due to large areas of the biome that remain under-collected. The strongest statistical association was between seed weight and soil compaction, with mean temperature of the driest quarter and aridity directly influencing soil compaction (and indirectly influencing seed weight). Conclusions We conclude that the larger seeds of woody species in the Caatinga are primarily an adaptation to compacted soil, uneven distribution of rainfall and high temperatures, intrinsic conditions of the Caatinga biome.
英文关键词	Arid and semi-arid Dry forest Seasonality Compaction Rainfall Vegetation
类型	Article
语种	英语
国家	Brazil ; Spain
收录类别	SCI-E
WOS记录号	WOS:000498092800004
WOS关键词	PLANT PRODUCTIVITY ; SOIL COMPACTION ; SIZE ; ESTABLISHMENT ; GRADIENT ; SURVIVAL ; FOREST ; TRAITS ; MASS ; CONSEQUENCES
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
EI主题词	2019-11-23
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310973
作者单位	1.Univ Fed Alagoas, Inst Biol & Hlth Sci, Av Lourival Melo Mota S-N, BR-57072900 Maceio, AL, Brazil; 2.CSIC, MNCN, Dept Biogeog & Global Change, C Jose Gutierrez Abascal 2, Madrid 28006, Spain
推荐引用方式 GB/T 7714	Costa, Adriana dos Santos,Stropp, Juliana,de Carvalho, Nicoffi Albuquerque,et al. Environmental correlates of seed weight of tropical semi-arid woody species[J],2020,446(1-2):369-378.
APA	Costa, Adriana dos Santos,Stropp, Juliana,de Carvalho, Nicoffi Albuquerque,Alves-Martins, Fernanda,Ladle, Richard J.,&Malhado, Ana C. M..(2020).Environmental correlates of seed weight of tropical semi-arid woody species.PLANT AND SOIL,446(1-2),369-378.
MLA	Costa, Adriana dos Santos,et al."Environmental correlates of seed weight of tropical semi-arid woody species".PLANT AND SOIL 446.1-2(2020):369-378.