干旱区生态环境知识资源中心(Arid): Trait-density-microsite interactions indicate plastic and non-plastic germination strategies of co-occurring desert annual plants

Arid

DOI	10.1016/j.jaridenv.2020.104178
	Trait-density-microsite interactions indicate plastic and non-plastic germination strategies of co-occurring desert annual plants
	Carmona-Crocco, Julieta; Rolhauser, Andres G.; Pucheta, Eduardo
通讯作者	Rolhauser, AG
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2020
卷号	179
英文摘要	Functional traits have been linked to relevant vital rates across co-occurring species, such as growth and survival. However, the relationship between plant traits and germination has been much less studied, despite that germination can be a key transition for plants. Building on evolutionary theory, we propose that variation in germination fraction across co-occurring desert annual plants may result from the interaction of post-germination plant traits, density dependence and microsite type. Our study system consisted of three summer annual species abundant in a desert in western Argentina, for which we quantified germination fractions in three microsite types: Larrea divaricata shrub, Bulnesia retama shrub, and open spaces among shrubs. Based on post-germination trait data (summarized by a principal component, PC1), the annual species can be arranged in terms of increasing stress-tolerance, from Amaranthus standleyanus, to Gomphrena martiana and Tribulus terrestris. We found an interaction between PC1 and density of conspecific seeds suggesting that the strength of plastic negative density-dependence decreased with the increase of plant stress-tolerance. Our results emphasize that both plastic and non-plastic (bet-hedging) mechanisms would contribute to shape germination dynamics across annual plants, and that plant traits can offer parsimonious explanations for such cross-species variation.
英文关键词	Density dependence Dormancy Germination fraction Plant trait Seed bank Trait-germination relationship
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000533505000012
WOS关键词	FUNCTIONAL TRAITS ; OPTIMIZING REPRODUCTION ; SEED-BANK ; FACILITATION ; COEXISTENCE ; COMPETITION ; MECHANISMS ; SELECTION ; DYNAMICS ; ECOLOGY
WOS类目	Ecology ; Environmental Sciences
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/2XILL650/324470
作者单位	[Carmona-Crocco, Julieta; Rolhauser, Andres G.; Pucheta, Eduardo] Univ Nacl San Juan, Fac Ciencias Exactas Fis & Nat, Dept Biol, Av Ignacio de la Roza 590 O J5402DCS, San Juan, Argentina; [Rolhauser, Andres G.] Univ Buenos Aires, Fac Agron, Dept Metodos Cuantitativos & Sistemas Informac, Av San Martin 4453,C1417DSE, Buenos Aires, DF, Argentina; [Rolhauser, Andres G.] Univ Buenos Aires, CONICET, Fac Agron, IFEVA, Ave San Martin 4453,C1417DSE, Buenos Aires, DF, Argentina; [Carmona-Crocco, Julieta] INTA, EAA San Juan, Calle 11 & Vidart, San Juan, Argentina; [Rolhauser, Andres G.] Univ North Carolina Chapel Hill, Dept Biol, Coker Hall,CB 3280 120 South Rd, Chapel Hill, NC 27599 USA
推荐引用方式 GB/T 7714	Carmona-Crocco, Julieta,Rolhauser, Andres G.,Pucheta, Eduardo. Trait-density-microsite interactions indicate plastic and non-plastic germination strategies of co-occurring desert annual plants[J],2020,179.
APA	Carmona-Crocco, Julieta,Rolhauser, Andres G.,&Pucheta, Eduardo.(2020).Trait-density-microsite interactions indicate plastic and non-plastic germination strategies of co-occurring desert annual plants.JOURNAL OF ARID ENVIRONMENTS,179.
MLA	Carmona-Crocco, Julieta,et al."Trait-density-microsite interactions indicate plastic and non-plastic germination strategies of co-occurring desert annual plants".JOURNAL OF ARID ENVIRONMENTS 179(2020).