Narrow environmental niches predict land-use responses and vulnerability of land snail assemblages

Wehner, Katja; Renker, Carsten; Simons, Nadja K.; Weisser, Wolfgang W.; Blüthgen, Nico

doi:10.1186/s12862-020-01741-1

BMC Ecology and Evolution

Table 2 Influence of land-use parameter and abiotic factors on the trait composition of snail communities in grassland habitats

From: Narrow environmental niches predict land-use responses and vulnerability of land snail assemblages

Shell size (CWM)	df	Sum Sq	F	p	Number of offspring (CWM)	df	Sum Sq	F	p	Light preference (CWM)	df	Sum Sq	F	p
LUI	1	5.600	4.283	0.039	LUI	1	767	10.237	0.001	LUI	1	0.412	5.119	0.024
Region	2	187.310	71.659	< 0.001	Region	2	35,030	233.853	< 0.001	Region	2	17.237	107.017	< 0.001
LUI:Region	2	4.300	1.647	0.193	LUI:Region	2	4368	29.160	< 0.001	LUI:Region	2	0.103	0.640	0.527
Mowing	1	1.020	0.781	0.377	Mowing	1	14	0.175	0.675	Mowing	1	0.080	1.014	0.314
Region	2	189.840	72.796	< 0.001	Region	2	35,805	227.152	< 0.001	Region	2	17.245	109.120	< 0.001
Mowing:Region	2	8.740	3.350	0.036	Mowing:Region	2	1301	8.252	< 0.001	Mowing:Region	2	1.605	10.158	< 0.001
Grazing	1	0.510	0.389	0.533	Grazing	1	2185	30.582	< 0.001	Grazing	1	1.719	22.760	< 0.001
Region	2	187.060	71.464	< 0.001	Region	2	38,316	268.169	< 0.001	Region	2	17.080	113.050	< 0.001
Grazing:Region	2	8.230	3.146	0.044	Grazing:Region	2	2356	16.489	< 0.001	Grazing:Region	2	2.836	18.770	< 0.001
Fertilization	1	8.840	6.763	0.009	Fertilization	1	2672	33.505	< 0.001	Fertilization	1	1.278	15.814	< 0.001
Region	2	189.430	70.534	< 0.001	Region	2	33,070	207.321	< 0.001	Region	2	16.131	99.785	< 0.001
Fertilization:Region	2	3.620	1.385	0.251	Fertilization:Region	2	645	4.042	0.018	Fertilization:Region	2	0.172	0.690	0..502
pH	1	2.120	1.664	0.197	pH	1	8636	140.899	< 0.001	pH	1	0.549	6.939	0.088
Region	2	216.910	85.099	< 0.001	Region	2	35,255	287.605	< 0.001	Region	2	16.624	105.097	< 0.001
pH:Region	2	3.430	1.348	0.261	pH:Region	2	6862	55.976	< 0.001	pH:Region	2	1.704	10.771	< 0.001
Soil moisture	1	0.490	0.488	0.540	Soil moisture	1	15,105	216.410	< 0.001	Soil moisture	1	0.360	4.478	0.035
Region	2	190.300	95.150	< 0.001	Region	2	24,423	174.950	< 0.001	Region	2	16.903	104.523	< 0.001
Soil mositure:Region	2	11.580	5.791	0.012	Soil mositure:Region	2	4604	32.983	< 0.001	Soil mositure:Region	2	0.235	1.453	0.234

Humidity preference (CWM)	df	Sum Sq	F	p	Drought resistance (CWM)	df	Sum Sq	F	p	Inundation tolerance (CWM)	df	Sum Sq	F	p
LUI	1	2.651	14.988	< 0.001	LUI	1	0.002	0.082	0.774	LUI	1	1.765	25.385	< 0.001
Region	2	123.421	348.964	< 0.001	Region	2	2.844	73.056	< 0.001	Region	2	43.230	310.828	< 0.001
LUI:Region	2	9.841	27.882	< 0.001	LUI:Region	2	0.358	9.192	< 0.001	LUI:Region	2	3.626	26.071	< 0.001
Mowing	1	0.198	1.050	0.306	Mowing	1	0.072	3.703	0.055	Mowing	1	0.401	5.486	0.019
Region	2	125.799	333.045	< 0.001	Region	2	2.858	73.285	< 0.001	Region	2	44.594	304.664	< 0.001
Mowing:Region	2	0.582	1.542	0.215	Mowing:Region	2	0.250	6.403	0.001	Mowing:Region	2	0.789	5.392	0.004
Grazing	1	0.343	1.866	0.172	Grazing	1	0.623	32.926	< 0.001	Grazing	1	0.397	5.960	0.015
Region	2	128.553	349.785	< 0.001	Region	2	2.719	71.585	< 0.001	Region	2	46.61	349.538	< 0.001
Grazing:Region	2	1.652	4.496	0.011	Grazing:Region	2	0.295	7.799	< 0.001	Grazing:Region	2	3.843	28.818	< 0.001
Fertilization	1	3.182	16.989	< 0.001	Fertilization	1	0.016	0.810	0.368	Fertilization	1	4.327	59.483	< 0.001
Region	2	122.809	327.885	< 0.001	Region	2	2.870	72.506	< 0.001	Region	2	41.199	283.187	< 0.001
Fertilization:Region	2	1.825	4.872	0.008	Fertilization:Region	2	0.067	1.690	0.185	Fertilization:Region	2	0.604	4.152	0.016
pH	1	4.880	31.830	< 0.001	pH	1	0.111	5.575	0.018	pH	1	1.236	20.306	< 0.001
Region	2	131.880	430.070	< 0.001	Region	2	2.726	68.779	< 0.001	Region	2	44.982	369.382	< 0.001
pH:Region	2	17.468	56.964	< 0.001	pH:Region	2	0.093	2.337	0.097	pH:Region	2	9.133	74.999	< 0.001
Soil moisture	1	43.980	258.049	< 0.001	Soil moisture	1	0.496	25.671	< 0.001	Soil moisture	1	19.377	287.467	< 0.001
Region	2	93.991	275.743	< 0.001	Region	2	2.497	64.560	< 0.001	Region	2	30.888	229.127	< 0.001
Soil mositure:Region	2	2.945	8.640	0.001	Soil mositure:Region	2	0.312	8.055	< 0.001	Soil mositure:Region	2	0.018	0.131	0.877

Significant values are given in bold
LUI land-use intensity

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