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Table 5 Statistics of linear regressions performed on mistletoe biomass and growth variables on Mont-Ventoux, France, from 1997 to 2007

From: Individual vulnerability factors of Silver fir (Abies alba Mill.) to parasitism by two contrasting biotic agents: mistletoe (Viscum album L. ssp. abietis) and bark beetles (Coleoptera: Curculionidae: Scolytinae) during a decline process

Interval

Growth slope

Mean BAI

(LocReg)

Slope

Adjusted R 2

p

 

BAI

Adjusted R 2

p

 

2007–2006 (LocReg2)

28.3

0.0397

0.204

NS

896

0.316

0.00720

*

2007–2005 (LocReg3)

45.9

0.0398

0.204

NS

740

0.551

< 0.001

***

2007–2004 (LocReg4)

−5.65

0.196

0.0330

*

970

0.538

< 0.001

***

2007–2003 (LocReg5)

−47.0

0.216

0.0259

*

1162

0.495

< 0.001

***

2007–2002 (LocReg6)

−55.6

0.141

0.0629

NS

1152

0.370

0.00337

**

2007–2001 (LocReg7)

−71.1

0.0462

0.189

NS

1349

0.164

0.0480

*

2007–2000 (LocReg8)

−66.6

−0.00675

0.361

NS

1246

0.0916

0.111

NS

2007–1999 (LocReg9)

−55.8

−0.0260

0.471

NS

1156

0.104

0.0957

NS

2007–1998 (LocReg10)

−73.8

−0.0526

0.755

NS

1737

−0.0356

0.545

NS

2007–1997 (LocReg11)

−74.1

−0.0588

0.988

NS

1548

−0.0485

0.688

NS

  1. The growth slope is presented in units of square millimeter per year. LocReg was the slopes of linear regressions fitted over the last 2 to 11 previous years of BAI
  2. NS non-significant
  3. *p < 0.05, **p < 0.01, ***p < 0.001
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Annals of Forest Science

ISSN: 1297-966X