Koala
Research

You Yangs Koala Research Report 2018

Echidna Walkabout monitors wild koalas in two areas of the You Yangs Regional Park, Victoria Australia. This is a summary of the 2018 year.

2018 You Yangs Koala Research Infographic

Area monitored: 28% of the 2000 ha You Yangs Regional Park

Koala sightings:  1294

Number of research days: 313 

Average koalas seen per day: 4.13

High months: December avg 5.77 koalas seen per day

Low months: September avg 2.84 koalas seen per day

Days with only 1 koala sighted: 11 (more likely in spring). 

Highest number of koalas sighted on one day: 10 on 14 November 2018

Number of koalas in total research area (Area 1 + Area 2) = 43 individuals (same as 43 in 2017).  

As we research in 28% of the Park, an estimate of the koala population of the You Yangs can be reached.  The minimum koala number is 43 and the maximum is 153 koalas. As the area we monitor is the best habitat in the Park for koalas, we consider 153 very unlikely.  98 koalas is a more likely total estimate for the entire park. 

Koalas joeys born in 2018: 5 

Birth rate: 0.12 

Fecundity:  0.28  

Koalas (known) deceased in 2018: 3 Note: this is a minimum figure. Most koala deaths are not found. 

Death rate: 0.07 

More details here: https://www.echidnawalkabout.com.au/you-yangs-koala-research-report-2018/

You Yangs Koala Research Report 2017

Echidna Walkabout monitors wild koalas in two areas of the You Yangs Regional Park, Victoria Australia. This is a summary of the 2017 year.

You Yangs koala research 2017 summary

Area monitored: 28% of the 2000 ha You Yangs Regional Park

Koala sightings: 1118 

Number of research days: 311 

Average koalas seen per day: 3.6

High months: March avg 4.7 koalas seen per day
Low months: June avg 2.2 koalas seen per day
Days with only 1 koala sighted: 14 (more likely in winter).
Highest number of koalas sighted on one day: 14 on 17th November 2017

Number of koalas in total research area (Area 1 + Area 2) = 43 individuals 

Koalas joeys born in 2017: 6

Birth rate 0.14

Fecundity 0.33

Koalas (known) deceased in 2017: 4

Death rate 0.09

More details here: https://www.echidnawalkabout.com.au/you-yangs-koala-research-report-2017/

Methods:

All koala research is conducted non-intrusively using our Koala Nose Pattern Identification method – ie. no koalas are touched or handled, all observations are taken through binoculars and cameras at a distance of 10 metres away. All monitoring is conducted with Parks Victoria knowledge and approval.

This project is completed funded by social enterprise Echidna Walkabout Nature Tours and offered freely to land managers, conservationists and the public.  Koala Clancy Foundation uses this research to guide our koala tree planting and weed removal projects. 

For more information about our methods, or to use any of our findings please contact us. president @ koalaclancyfoundation.org.au

Thanks to our team, Echidna Walkabout’s Koala Researchers, Wildlife Guides and tour guests who all contribute photographs, sightings and observations to the Wild Koala Research Project.

You Yangs Koala Research Report 2016

Echidna Walkabout monitors wild koalas in two areas of the You Yangs Regional Park, Victoria Australia. This is a summary of the 2017 year.

koala research infographic You Yangs 2016

Area researched: 28% of the 2000 ha You Yangs Regional Park

Total koala sightings: 1265 up 5% on last year (but still down, was 1590 in  2014 and 1317 in 288 days in 2013)

Research Days: 307

Average number of koalas seen per day: 4.1

High month: March average of 4.7 per day.
Low month: May average of 3.3 per day.

Number of koalas in total research area (Area 1 + Area 2): 38 (up from 34 in 2015)

Number of koala joeys born in 2016: 6 (highest ever)

Birth rate: 0.16

Fecundity: 0.32

Number of koalas found deceased: 3

Death rate: 0.08

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