Biology Reference
In-Depth Information
Fig. 2.7
Distribution frequency of minimum number of introduction events among families.
Family numbers correspond to those of Table 2.2. The distribution is modelled by the negative
power function y = 2388.6 ×
−1.3589
, with R
2
= 0.9493
Table 2.3
Variation in establishment success among taxonomic families. Percentages highlighted
in bold are for those families introduced more than ten times, making them less likely to be estima-
tion artifacts
Number of
successful
establish-
ments
Number of
successful
establish-
ments
Percent of
establishment
success
Percent of
establishment
success
Family
Family
Acrochordidae
1
1.00
Myobatrachidae
2
0.25
Dendrobatidae
1
1.00
Lacertidae
36
0.24
Leptotyphlopidae
1
1.00
Varanidae
7
0.23
Typhlopidae
71
0.88
Chamaeleontidae
10
0.23
Rhacophoridae
5
0.83
Anguidae
2
0.22
Gymnophthalmidae
2
0.67
Plethodontidae
11
0.21
Proteidae
7
0.54
Bombinatoridae
3
0.19
Leptodactylidae
54
0.52
Salamandridae
12
0.18
Microhylidae
7
0.47
Hylidae
41
0.17
Agamidae
20
0.47
Discoglossidae
2
0.17
Gekkonidae
226
0.45
Testudinidae
22
0.14
Scincidae
38
0.44
Ambystomatidae
5
0.14
Teidae
9
0.41
Elapidae
4
0.12
Bufonidae
58
0.38
Viperidae
6
0.11
Chelidae
5
0.36
Colubridae
31
0.10
Pipidae
11
0.30
Chelydridae
5
0.10
Alytidae
2
0.29
Alligatoridae
3
0.07
Trionychidae
20
0.28
Geoemydidae
7
0.06
Iguanidae
94
0.27
Emydidae
83
0.04
Ranidae
126
0.27
Boidae
3
0.04
Pelomedusidae
4
0.27
Pythonidae
1
0.01
