Table 2 Number of studies that demonstrated a significant increase/decrease or no change in genetic diversity, inbreeding, genetic differentiation, gene flow, or fitness following habitat disturbance

From: Genetic resource impacts of habitat loss and degradation; reconciling empirical evidence and predicted theory for neotropical trees

Measure

 

Generation

Increased

Decreased

No change

Diversity

Allelic richness

Adults

2(16,23)

3(2,5,14)

  

Juveniles

1(7)

2(2,5)

  

Progeny

1(8)

 

Diversity index

Adults

2(13,16)

5(5,6,7,21,23)

  

Juveniles

2(5,7)

  

Progeny

3(4,11, 15)

Gene flow

 

Adults

2(14,16)

1(15)

  

Juveniles

  

Progeny

2(9,24)

Inbreeding

 

Adults

2(6,23)

  

Juveniles

1(1)

  

Progeny

4(4,9,10,11)

2(15,22)

Reproductive output

  

2(3,8)

7(4,11,12,16,17,18,22)

1(3)

Progeny fitness

  

6(4,17,18,19,20,22)

  1. 1Aldrich and Hamrick (1998); 2Aldrich et al (1998); 3Boshier et al (2004); 4Cascante et al (2002); 5Céspedes et al (2003); 6Collevatti et al (2001); 7Dayanandan et al (1999); 8Dick (2001); 9Dick et al (2003); 10Doligez and Joly (1997); 11Fuchs et al (2003); 12Ghazoul and McLeish (2001); 13Gillies et al (1999); 14Hall et al (1994a); 15Hall et al (1994b); 16Hall et al (1996); 17Madriz (2004); 18Nason and Hamrick (1997); 19Navarro (2002); 20Navarro and Hernández (2004); 21Novick et al (2003); 22Rocha and Aguilar (2001); 23White et al (1999); 24White et al (2002).
  2. Studies of fragmentation are indicated in italics, logging in bold and isolated tree studies are underlined.