Characteristic Size Distributions of Integral Benthic Communities

Characteristic Size Distributions of Integral Benthic Communities
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完整底栖群落的特征尺寸分布

DOI:
10.1139/f81-167
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发表时间:
1981
影响因子:
2.4
通讯作者:
P. Schwinghamer
P. Schwinghamer
中科院分区:
农林科学2区
文献类型:
--
作者:
P. Schwinghamer

文献摘要

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当生物量浓度表示为有机体大小的对数间隔的函数时,通过大型动物组成的细菌均匀大小光谱表征了六个潮间带群落。虽然群落总生物量在70 ~ 1283 cm3/m2之间,但生物量分布格局在整个尺度谱上是一致的。3个生物量峰值分别为0.5-1 μm等效球径(29-81 cm3/m2)、64-125 μm (0.5-4 cm3/m2)和bbb2.0 mm (2.4-1283 cm3/m2),典型低生物量分布在8 μm (0-0.04 cm3/m2)和500 μm - 1 mm (0-1.5 cm3/m2)附近。这些峰分别对应于细菌、间质小动物群和大型动物群。在8 μm附近,在500 ~ 1000 μm附近,粮食定殖生物与间隙小动物或底栖微生物群之间,以及间隙小动物与穴居或定居大型动物之间的大小不连续,反映在这些大小区间的低生物量值上。将数据与其他地区的重铸发布数据进行比较,可以发现类似的大小…
Uniform size spectra comprising bacteria through macrofauna characterize six intertidal communities when biomass concentration is expressed as a function of logarithmic intervals of organism size. Although total community biomass ranged from 70 cm3/m2 to 1283 cm3/m2, biomass distribution patterns are consistent over the entire size spectrum. Three biomass peaks, at 0.5–1 μm equivalent spherical diameter (29–81 cm3/m2), 64–125 μm (0.5–4 cm3/m2), and > 2 mm (2.4–1283 cm3/m2) were separated by typically low biomasses near 8 μm (0–0.04 cm3/m2) and 500 μm–1 mm (0–1.5 cm3/m2). The peaks correspond to bacteria, interstitial meiofauna, and macrofauna, respectively. Size discontinuities between grain colonizers and interstitial microfauna or epibenthic microflora near 8 μm, and between interstitial meiofauna and burrowing or sedentary macrofauna near 500–1000 μm, are reflected in low biomass values in these size intervals. Comparison of the data with recast published data for other locales shows that similar size ...