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Table 4 Generalized linear models of bird diversity in relation to local and landscape-scale land cover variables and distance to KMC boundary variable

From: Influence of land cover features on avian community and potential conservation priority areas for biodiversity at a Ramsar site in India

Spatial scales

Models

Variables (β estimate ± SE)

t values

AICc values

Local scale

1. glm(Bird diversity ~ WA + DB + AF + 

TC + OG + BA)

WA = − 0.01 ± 0.016

DB = 0.04 ± 0.016

AF = 0.011 ± 0.013

TC = 0.006 ± 0.013

OG = 0.02 ± 0.013

BA = − 0.052 ± 0.014

WA = − 0.627

DB = 2.543

AF = 0.862

TC = 0.471

OG = 1.509

BA = − 3.802

288.85

2. glm(Bird diversity ~ DKB)

DKB = 0.075 ± 0.013

DKB = 5.848

272.82

3. glm(Bird diversity ~ WA + DB + AF + 

TC + OG + BA + DKB)

WA = − 0.001 ± 0.015

DB = 0.031 ± 0.016

AF = − 0.011 ± 0.014

TC = 0.007 ± 0.014

OG = 0.009 ± 0.013

BA = − 0.046 ± 0.013

DKB = 0.072 ± 0.014

WA = − 0.046

DB = 1.975

AF = − 0.823

TC = 0.521

OG = 0.709

BA = − 3.417

DKB = 5.169

264.45

Landscape scale

1. glm(Bird diversity ~ PC1 + PC2 + PC3)

PC1 = 0.069 ± 0.022

PC2 = 0.017 ± 0.022

PC3 = 0.083 ± 0.022

PC1 = 3.066

PC2 = 0.779

PC3 = 3.699

119.02

2. glm(Bird diversity ~ DKB)

DKB = 0.095 ± 0.023

DKB = 4.199

120.6

3. glm(Bird diversity ~ PC1 + PC2 + PC3

 + DKB)

PC1 = 0.119 ± 0.022

PC2 = 0.045 ± 0.021

PC3 = 0.077 ± 0.020

DKB = 0.142 ± 0.022

PC1 = 5.406

PC2 = 2.148

PC3 = 3.759

DKB = 6.351

83.49

  1. WA water area, DB dikes and banks, AF agricultural field, TC tree cover, OG open ground, BA built-up area, DKB distance to KMC boundary, PC principal component; bold fonts of variables indicate p < 0.05; The lowest AICc values indicate the best model