Agriculture & Biology
parakeets
100%
invasive species
69%
Myiopsitta monachus
50%
ecological economics
28%
economic impact
21%
Psittacula
15%
literacy
14%
social impact
14%
global change
11%
Portugal
10%
education
10%
socioeconomics
10%
animal communication
9%
questionnaires
8%
biodiversity
8%
vertebrates
7%
economics
6%
gender
6%
Earth & Environmental Sciences
introduced species
78%
biological invasion
29%
ecological economics
27%
public
15%
literacy
15%
social cost
15%
socioeconomic impact
14%
social impact
13%
ecological impact
12%
economic impact
12%
invasive species
12%
gender
11%
global change
11%
vertebrate
10%
education
9%
communication
8%
biodiversity
8%
economics
6%