Agricultural intensification and urbanization negatively impact soil nematode richness and abundance: a meta-analysis

Agricultural intensification and urbanization negatively impact soil nematode richness and abundance: a meta-analysis

Journal of Nematology

Volume 51 (2019): Issue 1 (January 2019)

By:

Satyendra K. Pothula, Parwinder S. Grewal, Robert M. Auge, Arnold M. Saxton and Ernest C. Bernard

Open Access

|Apr 2019

Figures & Tables

Effect of ecosystem on genus-level nematode richness. Mean values are the weighted summary effect sizes and the bars represent standard error for comparing overall richness of nematodes per 100 g of soil in different ecosystems. Letter n is the number of studies reporting data at each ecosystem. P
hetero < 0.05 is evidence that ecosystem levels differed. I
2 is the percentage of true or real variation among ecosystem levels. — Effect of ecosystem on genus-level nematode richness. Mean values are the weighted summary effect sizes and the bars represent standard error for comparing overall richness of nematodes per 100 g of soil in different ecosystems. Letter n is the number of studies reporting data at each ecosystem. P hetero < 0.05 is evidence that ecosystem levels differed. I 2 is the percentage of true or real variation among ecosystem levels.

Effect of ecosystem on genus-level nematode richness of each c-p guild. Mean values are the weighted summary effect sizes and the bars represent standard error for comparing richness of nematodes at c-p guilds 1 to 5 per 100 g of soil in different ecosystems. Letter n is the number of studies reporting data at each ecosystem. P
hetero < 0.05 is evidence that ecosystem levels differed. I
2 is the percentage of true or real variation among ecosystem levels. The inset in c-p 1 and c-p 5 forest plots is the enlarged view of the respective forest plots. — Effect of ecosystem on genus-level nematode richness of each c-p guild. Mean values are the weighted summary effect sizes and the bars represent standard error for comparing richness of nematodes at c-p guilds 1 to 5 per 100 g of soil in different ecosystems. Letter n is the number of studies reporting data at each ecosystem. P hetero < 0.05 is evidence that ecosystem levels differed. I 2 is the percentage of true or real variation among ecosystem levels. The inset in c-p 1 and c-p 5 forest plots is the enlarged view of the respective forest plots.

Effect of ecosystem on genus-level nematode richness of each trophic group. Mean values are the weighted summary effect sizes and the bars represent standard error for comparing richness of nematodes of each trophic group per 100 g of soil in different ecosystems. Letter n is the number of studies reporting data at each ecosystem. P
hetero < 0.05 is evidence that ecosystem levels differed. I
2 is the percentage of true or real variation among ecosystem levels. The inset in fungivores and predators forest plots is the enlarged view of the respective forest plots. — Effect of ecosystem on genus-level nematode richness of each trophic group. Mean values are the weighted summary effect sizes and the bars represent standard error for comparing richness of nematodes of each trophic group per 100 g of soil in different ecosystems. Letter n is the number of studies reporting data at each ecosystem. P hetero < 0.05 is evidence that ecosystem levels differed. I 2 is the percentage of true or real variation among ecosystem levels. The inset in fungivores and predators forest plots is the enlarged view of the respective forest plots.

Effect of ecosystem on genus-level nematode abundance. Mean values are the weighted summary effect sizes and the bars represent standard error for comparing overall abundance of nematodes per 100 g of soil in different ecosystems. Letter n is the number of studies reporting data at each ecosystem. P
hetero < 0.05 is evidence that ecosystem levels differed. I
2 is the percentage of true or real variation among ecosystem levels. — Effect of ecosystem on genus-level nematode abundance. Mean values are the weighted summary effect sizes and the bars represent standard error for comparing overall abundance of nematodes per 100 g of soil in different ecosystems. Letter n is the number of studies reporting data at each ecosystem. P hetero < 0.05 is evidence that ecosystem levels differed. I 2 is the percentage of true or real variation among ecosystem levels.

Effect of ecosystem on genus-level nematode abundance of each c-p guild. Mean values are the weighted summary effect sizes and the bars represent standard error for comparing abundance of nematodes at c-p guilds 1 to 5 per 100 g of soil in different ecosystems. Letter n is the number of studies reporting data at each ecosystem. P
hetero < 0.05 is evidence that ecosystem levels differed. I
2 is the percentage of true or real variation among ecosystem levels. The inset in c-p 1, c-p 4, and c-p 5 forest plots is the enlarged view of the respective forest plots. — Effect of ecosystem on genus-level nematode abundance of each c-p guild. Mean values are the weighted summary effect sizes and the bars represent standard error for comparing abundance of nematodes at c-p guilds 1 to 5 per 100 g of soil in different ecosystems. Letter n is the number of studies reporting data at each ecosystem. P hetero < 0.05 is evidence that ecosystem levels differed. I 2 is the percentage of true or real variation among ecosystem levels. The inset in c-p 1, c-p 4, and c-p 5 forest plots is the enlarged view of the respective forest plots.

Effect of ecosystem on genus-level nematode abundance of each trophic group. Mean values are the weighted summary effect sizes and the bars represent standard error for comparing abundance of nematodes of each trophic group per 100 g of soil in different ecosystems. Letter n is the number of studies reporting data at each ecosystem. P
hetero < 0.05 is evidence that ecosystem levels differed. I
2 is the percentage of true or real variation among ecosystem levels. The inset in fungivores, predators, and omnivores forest plots is the enlarged view of the respective forest plots. — Effect of ecosystem on genus-level nematode abundance of each trophic group. Mean values are the weighted summary effect sizes and the bars represent standard error for comparing abundance of nematodes of each trophic group per 100 g of soil in different ecosystems. Letter n is the number of studies reporting data at each ecosystem. P hetero < 0.05 is evidence that ecosystem levels differed. I 2 is the percentage of true or real variation among ecosystem levels. The inset in fungivores, predators, and omnivores forest plots is the enlarged view of the respective forest plots.

Heterogeneity statistics for the summary effect sizes per 100 g and per 100 cm3 of soil_

	100 g			100 cm³
Summary effect	Q_t	P_hetero	I²	Q_t	P_hetero	I²
Overall richness	740.37	0.000	23.37	49.75	0.103	12.42
Overall abundance	525.42	0.007	2.67	320.94	0.000	10.28
Richness of c-p 1	347.88	0.000	8.50	129.66	0.000	66.24
Richness of c-p 2	486.97	0.000	15.43	79.06	0.000	34.16
Richness of c-p 3	453.61	0.000	32.25	147.73	0.000	73.73
Richness of c-p 4	520.05	0.000	29.18	42.39	0.357	7.62
Richness of c-p 5	390.74	0.001	4.56	54.84	0.025	17.00
Abundance of c-p 1	553.15	0.009	2.43	330.58	0.000	6.07
Abundance of c-p 2	422.77	0.028	2.57	186.77	0.000	27.30
Abundance of c-p 3	1,299.77	0.000	2.07	224.18	0.000	43.86
Abundance of c-p 4	609.75	0.000	13.95	70.48	0.088	9.27
Abundance of c-p 5	730.70	0.000	9.33	159.32	0.000	14.05
Richness of bacterivores	584.92	0.000	17.00	76.29	0.000	29.57
Richness of fungivores	392.01	0.000	18.47	105.16	0.000	57.06
Richness of herbivores	358.48	0.000	15.42	69.50	0.000	37.84
Richness of predators	267.55	0.000	18.34	50.88	0.061	14.51
Richness of omnivores	446.01	0.000	18.48	48.12	0.135	11.56
Abundance of bacterivores	519.91	0.001	3.80	396.91	0.000	9.81
Abundance of fungivores	645.08	0.034	1.61	357.16	0.000	17.18
Abundance of herbivores	762.77	0.015	1.62	430.30	0.001	3.92
Abundance of predators	768.10	0.000	6.72	144.93	0.000	18.25
Abundance of omnivores	747.91	0.000	11.09	344.69	0.000	12.77

DOI: https://doi.org/10.21307/jofnem-2019-011 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X

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Language: English

Page range: 1 - 17

Submitted on: Feb 5, 2018

Published on: Apr 26, 2019

Published by: Society of Nematologists, Inc.

In partnership with: Paradigm Publishing Services

Publication frequency: 1 times per year

Keywords:

Ecology,

Related subjects:

© 2019 Satyendra K. Pothula, Parwinder S. Grewal, Robert M. Auge, Arnold M. Saxton, Ernest C. Bernard, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.

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Agricultural intensification and urbanization negatively impact soil nematode richness and abundance: a meta-analysis

Figures & Tables

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Heterogeneity statistics for the summary effect sizes per 100 g and per 100 cm3 of soil_

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