Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3732/ajb.0900242 |
PHENOTYPIC PLASTICITY AND PRECIPITATION RESPONSE IN SONORAN DESERT WINTER ANNUALS | |
Angert, Amy L.1,2; Horst, Jonathan L.1; Huxman, Travis E.1![]() | |
通讯作者 | Angert, Amy L. |
来源期刊 | AMERICAN JOURNAL OF BOTANY
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ISSN | 0002-9122 |
出版年 | 2010 |
卷号 | 97期号:3页码:405-411 |
英文摘要 | Temporal environmental variation has profound influences on population dynamics and community structure. Examination of functional traits that influence resource uptake and allocation can illuminate how co-occurring species translate environmental variation into different demographic outcomes, yet few studies have considered interspecific differences in trait plasticity. We experimentally manipulated soil moisture to test the hypothesis that differences in morphological plasticity contribute to species differences in demographic response to unpredictable precipitation in Sonoran Desert winter annual plants. We compared plasticity of leaf traits and biomass allocation between Pectocarya recurvata (Boraginaceae) and Stylocline micropoides (Asteraceae), co-occurring species that differ in long-term demographic patterns. The species with highly variable population dynamics, Stylocline, had striking increases in leaf area and root biomass in response to an experimental increase in soil moisture. In contrast, the species with buffered long-term population dynamics, Pectocarya, did not differ in leaf morphology or biomass allocation between soil moisture treatments. Regardless of water treatment, Pectocarya had earlier reproductive phenology and greater fecundity than Stylocline, suggesting that differences in the timing of the phenological transitions from vegetative to reproductive growth may affect species’ responses to precipitation pulses. Combining long-term observations with experimental manipulations provides a window into the functional underpinnings and demographic consequences of trait plasticity. |
英文关键词 | Asteraceae biomass allocation Boraginaceae functional trait Pectocarya recurvata pulse response species coexistence specific leaf area Stylocline micropoides |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000275106800004 |
WOS关键词 | RELATIVE GROWTH-RATE ; FUNCTIONAL TRAITS ; UNBALANCED DATA ; FLOWERING TIME ; DROUGHT STRESS ; PLANT ; COMPONENTS ; COEXISTENCE ; ALLOCATION ; EVOLUTION |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
来源机构 | University of Arizona ; Colorado State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/163118 |
作者单位 | 1.Univ Arizona, Dept Ecol & Evolutionary Biol, Tucson, AZ 85721 USA; 2.Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA |
推荐引用方式 GB/T 7714 | Angert, Amy L.,Horst, Jonathan L.,Huxman, Travis E.,et al. PHENOTYPIC PLASTICITY AND PRECIPITATION RESPONSE IN SONORAN DESERT WINTER ANNUALS[J]. University of Arizona, Colorado State University,2010,97(3):405-411. |
APA | Angert, Amy L.,Horst, Jonathan L.,Huxman, Travis E.,&Venable, D. Lawrence.(2010).PHENOTYPIC PLASTICITY AND PRECIPITATION RESPONSE IN SONORAN DESERT WINTER ANNUALS.AMERICAN JOURNAL OF BOTANY,97(3),405-411. |
MLA | Angert, Amy L.,et al."PHENOTYPIC PLASTICITY AND PRECIPITATION RESPONSE IN SONORAN DESERT WINTER ANNUALS".AMERICAN JOURNAL OF BOTANY 97.3(2010):405-411. |
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