Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1111/1365-2745.13779 |
| The influence of life-history strategy on ecosystem sensitivity to resource fluctuations | |
| Felton, Andrew J.; Snyder, Robin E.; Shriver, Robert K.; Suding, Katharine N.; Adler, Peter B. | |
| 通讯作者 | Felton, AJ (corresponding author), Utah State Univ, Dept Wildland Resources, Logan, UT 84322 USA. ; Felton, AJ (corresponding author), Utah State Univ, Ecol Ctr, Logan, UT 84322 USA. |
| 来源期刊 | JOURNAL OF ECOLOGY
 |
| ISSN | 0022-0477 |
| EISSN | 1365-2745 |
| 出版年 | 2021 |
| 英文摘要 | To cope with uncertainty and variability in their environment, plants evolve distinct life-history strategies by allocating different fractions of energy to growth, survival and fecundity. These differences in life-history strategies could potentially influence ecosystem-level dynamics, such as the sensitivity of primary production to resource fluctuations. However, linkages between evolutionary and ecosystem dynamics are not well understood. We used an annual plant population model to ask, when might differences in plant life-history strategies produce differences in the sensitivity of primary production to resource fluctuations? Consistent with existing theory, we found that a highly variable and unpredictable environment led to the evolution of a conservative strategy characterized by relatively low and invariant germination fractions, while a variable but predictable environment favoured a riskier strategy featuring more variable germination fractions. Unexpectedly, we found that the influence of life-history strategy on the sensitivity of production to resource fluctuations depended on competitive interactions, specifically the rate at which production saturates with the number of competing individuals. Rapid saturation overwhelms the influence of life-history strategy, but when production saturates more slowly, the risky strategy translated to high sensitivity, whereas the conservative strategy translated to low sensitivity. Empirical estimates from Sonoran Desert annual plant populations indicate that production saturates relatively rapidly with the number of individuals for most species, suggesting that life-history differences are unlikely to alter sensitivity of production to resource fluctuations, at least in this community. Synthesis. Our modelling results imply that research to understand the sensitivity of primary production to resource fluctuations should focus more on the intraspecific competitive interactions shaping the density-yield relationship than on the life-history strategies that determine temporal risk-spreading. |
| 英文关键词 | bet-hedging climate sensitivity ecosystem functioning life history plant population and community dynamics plasticity primary production |
| 类型 | Article |
| 语种 | 英语 |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000705038700001 |
| WOS关键词 | RANDOMLY VARYING ENVIRONMENTS ; ESS GERMINATION STRATEGIES ; MECHANISMS ; PLANTS ; REPRODUCTION ; POPULATION ; DORMANCY ; SCALE ; BIODIVERSITY ; COMMUNITIES |
| WOS类目 | Plant Sciences ; Ecology |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/363833 |
| 作者单位 | [Felton, Andrew J.; Adler, Peter B.] Utah State Univ, Dept Wildland Resources, Logan, UT 84322 USA; [Felton, Andrew J.; Adler, Peter B.] Utah State Univ, Ecol Ctr, Logan, UT 84322 USA; [Snyder, Robin E.] Case Western Reserve Univ, Dept Biol, Cleveland, OH 44106 USA; [Shriver, Robert K.] Univ Nevada, Dept Nat Resources & Environm Sci, Reno, NV 89557 USA; [Suding, Katharine N.] Univ Colorado, Dept Ecol & Evolutionary Biol, Boulder, CO 80309 USA; [Suding, Katharine N.] Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA |
| 推荐引用方式 GB/T 7714 | Felton, Andrew J.,Snyder, Robin E.,Shriver, Robert K.,et al. The influence of life-history strategy on ecosystem sensitivity to resource fluctuations[J],2021. |
| APA | Felton, Andrew J.,Snyder, Robin E.,Shriver, Robert K.,Suding, Katharine N.,&Adler, Peter B..(2021).The influence of life-history strategy on ecosystem sensitivity to resource fluctuations.JOURNAL OF ECOLOGY. |
| MLA | Felton, Andrew J.,et al."The influence of life-history strategy on ecosystem sensitivity to resource fluctuations".JOURNAL OF ECOLOGY (2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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