干旱区生态环境知识资源中心(Arid): Nonlinear modeling of saguaro growth rates reveals the importance of temperature for size-dependent growth

Arid

DOI	10.1002/ajb2.1358
	Nonlinear modeling of saguaro growth rates reveals the importance of temperature for size-dependent growth
	Felix-Burruel, Ricardo E.1,2; Larios, Eugenio 2; Bustamante, Enriquena 2; Burquez, Alberto 2
通讯作者	Burquez, Alberto
来源期刊	AMERICAN JOURNAL OF BOTANY
ISSN	0002-9122
EISSN	1537-2197
出版年	2019
卷号	106 期号:10 页码:1300-1307
英文摘要	Premise The saguaro cactus is an iconic species of the Sonoran Desert. Its individual growth rates have been investigated for over 100 years. Its growth dynamics have been studied using phenomenological models intended to estimate growth, but not to understand the underlying biological processes. Most studies have suggested summer rainfall as the sole factor determining saguaro growth, overlooking the influence of other factors related to the process of growth. Methods We analyzed the annual growth rates for 13 saguaro populations in the Sonoran Desert using nonlinear models. These are better suited to analyze growth since they consider the fact that maximum growth rates diminish just before the onset of reproduction. We related model parameters to the local climate. Results The most parsimonious model was the Ricker function that described growth considering cactus decline with age. Variance in temperature, rather than precipitation, was more closely related to growth. Higher variance in temperature at the beginning of the warm season was detrimental to saguaro growth. Conclusions Simple nonlinear equations modeled growth rate using biologically interpretable parameters related to climate factors. Because the temperature is projected to increase in both mean and variance by climate change, the population dynamics of this iconic cactus are likely to be affected.
英文关键词	Cactaceae Carnegiea gigantea growth mixed models long-term growth rate Ricker function Sonoran Desert variance of temperature
类型	Article
语种	英语
国家	Mexico
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000489953800001
WOS关键词	CARNEGIEA-GIGANTEA ; AMERICAN RANGE ; PLANT-GROWTH ; CACTACEAE ; REPRODUCTION ; DROUGHT ; MECHANISMS ; CACTUS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	Universidad Nacional Autónoma de México
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214121
作者单位	1.Univ Nacl Autonoma Mexico, Inst Geol, Ciencias Tierra, Mexico City, DF, Mexico; 2.Univ Nacl Autonoma Mexico, Inst Ecol, Hermosillo, Sonora, Mexico
推荐引用方式 GB/T 7714	Felix-Burruel, Ricardo E.,Larios, Eugenio,Bustamante, Enriquena,et al. Nonlinear modeling of saguaro growth rates reveals the importance of temperature for size-dependent growth[J]. Universidad Nacional Autónoma de México,2019,106(10):1300-1307.
APA	Felix-Burruel, Ricardo E.,Larios, Eugenio,Bustamante, Enriquena,&Burquez, Alberto.(2019).Nonlinear modeling of saguaro growth rates reveals the importance of temperature for size-dependent growth.AMERICAN JOURNAL OF BOTANY,106(10),1300-1307.
MLA	Felix-Burruel, Ricardo E.,et al."Nonlinear modeling of saguaro growth rates reveals the importance of temperature for size-dependent growth".AMERICAN JOURNAL OF BOTANY 106.10(2019):1300-1307.