Table 1 Description of the variable categories and their scores for the three elements of climate change vulnerability as applied to assess the vulnerability of 17 lizards along the Great Dividing Range of Australia (for references see Supporting Information Tables S4 and S5). For geographic range size, N refers to the number of 100 × 100 km grid cells occupied by the species.

From: Influence of adaptive capacity on the outcome of climate change vulnerability assessment

Variable Category (description) Unweighted score Weighted score
EXPOSURE
Change in area of current climatically suitable habitat Increase or little change (i.e. <10% decrease) 1 1
10–50% decrease 2 2
>50% decrease 3 4
Overlap between current and future suitable habitat >50% 1 1
10–50% 2 2.5
<10% 3 5
Suitable habitat within protected areas >50% 1 1
10–50% 2 1.5
<10% 3 3
SENSITIVITY
Physiological tolerance Wide (CTmax:median temp >3 °C) 1 1
Moderate (CTmax:median temp = 1.5–3 °C) 2 5.5
Narrow (CTmax:median temp <1.5 °C) 3 11
Geographic range size Large (N ≥ 50) 1 1
Moderate (25 ≤ N < 50) 2 5
Small (N < 25) 3 10
Climatic zones Multiregional (>3 climate regions) 1 1
Moderate (2–3 climate regions) 2 4.5
Narrow (1 climate region) 3 9
Habitat requirement Generalist (>3 habitat types) 1 1
Moderate (2–3 habitat types) 2 4
Specialist (1 habitat type only) 3 8
Dietary requirement Generalists (omnivore, or exploits a wide variety of food) 1 1
Moderate (able to tolerate some variety of food) 2 3.5
Specialist (restricted to a particular food item) 3 7
Reproduction rate Perennial 1 1
Annual 2 3
Biennial 3 6
Reproduction mode Viviparous 1 1
Ovoviviparous 2 3
Oviparous/temperature dependent sex 3 6
Mean Clutch size Large (≥5) 1 1
Moderate ( = 3–4) 2 2.5
Small (2) 3 5
Offspring survival rate >80% of offspring reach sexual maturity 1 1
50–80% of offspring reach sexual maturity 2 2.5
<50% of offspring reach sexual maturity 3 5
Generation length Short (≤2 years) 1 1
Moderate (3–4 years) 2 2
Long (≥5 years) 3 4
Life span Long-lived (>10 years) 1 1
Moderate (5–10 years) 2 2
Short-lived (<5 years) 3 3
ADAPTIVE CAPACITY
Dispersal capacity Low (SVL < 100 mm) 1 1
Moderate (100 mm < SVL < 200 mm) 2 3
high (SVL > 200 mm) 3 6
Genetic variability and evolutionary potential Low (He > 0.6) 1 1
Moderate (0.6 < He < 0.8) 2 2.5
high (He > 0.8) 3 5
Habitat fragmentation or barriers to dispersal high (>50% of range within pasture, crop and modified lands [PCMLs]) 1 1
Moderate (10–50% of range within PCMLs) 2 2
Low (<10% of range within PCMLs) 3 4
Microhabitat buffer Uses open ground only 1 1
Uses ground litter cover and tree bark 2 2
Uses deep rock crevices, burrows, under rocks and holes in logs 3 3