Oligosoma aeneum
Silhouette: David Orr · PhyloPic
In 3 days ~50% in a week ~80%
The copper skink (Oligosoma aeneum) is a skink of the family Scincidae that is endemic to the North Island of New Zealand. The number of skink species endemic to New Zealand is not yet known, as advancing molecular studies indicate genetic divergence amongst many groups previously considered a single species. At present, there is estimated to be between 50 and 60 species, all of the family Scincidae. Following a taxonomic revision of the species complex in 2008, the copper skink was assigned the scientific name of Cyclodina aenea, and found to be both genetically and morphologically diverged from two other skink species that were previously considered synonymic.
The initial arrival of the copper skink (and indeed any other skink species) to New Zealand is somewhat uncertain, and is a topic of considerable debate. The level of genetic diversity between the copper skink and other indigenous species suggests strongly that they and their ancestors have been a part of New Zealand's fauna for millions of years, allowing time for many early species to diverge and become distinct from each other. One 2009 study by Chapple, Ritchie and Daugherty, investigating... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Egmont National Park | 🇳🇿 New Zealand |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Auckland | 🇳🇿 New Zealand |
Possible
About 20% of wildlife watchers report a Copper Skink sighting in Auckland on a given day, based on 112 verified sightings from GBIF citizen-science data. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
June and December–January
In those months about 30% of wildlife watchers report a Copper Skink in Auckland on a given day, against about 10% in April, the lowest month.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Copper Skink sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Auckland, in our data
Auckland is the only city on Wallace's Line with enough records to rate Copper Skink sightings: about 20% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Copper Skink is recorded against all the reptiles logged in Auckland (112 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
