The bogong moth population crashed in 2017-18

Showing bogong moth abundance in summer at a site in Kosciuszko national park, NSW. Grey dots indicate years in which no survey was carried out

Good

Normal

to poor

Bad

Absent

1985

1995

2005

2015

1975

Year ending

Good

Normal

to poor

Bad

Absent

1985

1995

2005

2015

1975

Year ending

Good

Normal

to poor

Bad

Absent

1980

1985

1990

1995

2000

2005

2010

2020

1975

2015

Year ending

Good

Normal

to poor

Bad

Absent

1980

1985

1990

1995

2000

2005

2010

2020

1975

2015

Year ending

Good

Normal

to poor

Bad

Absent

1985

1995

2005

2015

1975

Year ending

Good

Normal

to poor

Bad

Absent

1985

1995

2005

2015

1975

Year ending

Good

Normal

to poor

Bad

Absent

1980

1985

1990

1995

2000

2005

2010

2020

1975

2015

Year ending

Good

Normal

to poor

Bad

Absent

1980

1985

1990

1995

2000

2005

2010

2020

1975

2015

Year ending

Guardian graphic. Source: Green et al. 2020, showing Ken Green Bogong site data from table 3