Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15862 |
Individual size distributions across North American streams vary with local temperature | |
Justin P. F. Pomeranz; James R. Junker; Jeff S. Wesner | |
2021-09-12 | |
发表期刊 | Global Change Biology
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出版年 | 2021 |
英文摘要 | Parameters describing the negative relationship between abundance and body size within ecological communities provide a summary of many important biological processes. While it is considered to be one of the few consistent patterns in ecology, spatiotemporal variation of this relationship across continental scale temperature gradients is unknown. Using a database of stream communities collected across North America (18–68°N latitude, −4 to 25°C mean annual air temperature) over 3 years, we constructed 160 individual size distribution (ISD) relationships (i.e. abundance size spectra). The exponent parameter describing ISD’s decreased (became steeper) with increasing mean annual temperature, with median slopes varying by ~0.2 units across the 29°C temperature gradient. In addition, total community biomass increased with increasing temperatures, contrary with theoretical predictions. Our study suggests conservation of ISD relationships in streams across broad natural environmental gradients. This supports the emerging use of size-spectra deviations as indicators of fundamental changes to the structure and function of ecological communities. |
领域 | 气候变化 ; 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/337552 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Justin P. F. Pomeranz,James R. Junker,Jeff S. Wesner. Individual size distributions across North American streams vary with local temperature[J]. Global Change Biology,2021. |
APA | Justin P. F. Pomeranz,James R. Junker,&Jeff S. Wesner.(2021).Individual size distributions across North American streams vary with local temperature.Global Change Biology. |
MLA | Justin P. F. Pomeranz,et al."Individual size distributions across North American streams vary with local temperature".Global Change Biology (2021). |
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