City Nature Challenge 2022: Greater Adelaide – Places to Visit

The City Nature Challenge 2022 starts in 30 days. The Greater Adelaide region will be participation for the third year running.

If you’re participating for the first time, check out the City Nature Challenge rundown by Ferox Australis and this previous post on Epistemic Curiosity.

Before the challenge starts, head over to iNaturalist and join the City Nature Challenge 2022: Greater Adelaide project, and the global City Nature Challenge umbrella project.

Check out previous results from 2020 and 2021 to see what species were found in previous years.

To participate, you don’t need to travel far and wide searching for rare species. You own backyard holds an amazing array of species. But if you’re looking for somewhere interesting to visit, check out the list below.

Continue reading

300,000 Verifiable Observations!

On the 8th of March 2022, we reached 300,000 verifiable observations uploaded in South Australia!

Congratulations to all who have contributed to this milestone. The first observations in SA were uploaded around mid-2011 and had only reached 4,500 by the end of 2017. Since then however the rate has increase dramatically reaching 23,500 by end of 2018, then 66,800 by end of 2019, on to 162,400 by end of 2020, and 282,700 by end of 2021.

We surpassed 100,000 observations in May 2020. It took 9 years to reach that milestone. It took only 12 months to add the second 100,000, and only 10 months to add the third 100,000! We are currently uploading over 300 new observations per day.

Alas, the exponential increase in observations cannot continue forever, and has been dropping year by year. 2018 saw a 520% increase in observations, 2019 a 280% increase, 2020 a 240% increase, and in 2021 a 170% increase. If we estimate a 140% increase this year, we’ll reach 400,000 observations by the end of 2022. And all it would take is 336 observations per day.

Quick Stats:

  • 4,242 observers have uploaded records of 8,726 species across the state
  • 68.2% of all verifiable observations are Research Grade
  • 9,401 observations of 244 Threatened species
  • 22,639 observations of 932 Introduced species
  • 4,780 identifiers have made 543,600 identifications on observations from SA
  • Observations by Taxa: 56,340 Birds, 884 Amphibians, 7,293 Reptiles, 7,016 Mammals, 11,729 Ray-finned Fishes, 10,360 Molluscs, 8,832 Arachnids, 52,725 Insects, 114,858 Plants, 11,376 Fungi, 1,588 Kelp & 155 Protozoans
  • Species by Taxa: 362 Birds, 20 Amphibians, 172 Reptiles, 85 Mammals, 278 Ray-finned Fishes, 486 Molluscs, 344 Arachnids, 2,685 Insects, 3020 Plants, 499 Fungi, 71 Kelp & 15 Protozoans

Pacific Black Duck….or Not?

For more in depth info head over to eBird Australia

Identifying Mallard x Pacific Black Duck Hybrids

The Pacific Black Duck (Anas superciliosa), in the Family Anatidae, is one of the most common native dabbling Ducks. It can be found all across Australia, typically in association with water sources, i.e. ponds, lakes, rivers, wetlands, and is frequently seen in urban waterways.

The Mallard (Anas platyrhynchos) was introduced to Australia in the 1860s and has been spreading slowly across the south east and other populated areas.

These closely related species have similar habits and occupy the same environments. Where they are both present, the Mallards will breed with the local Pacific Black Ducks. With several broods each year of 7 to 12 ducklings, and 20% reaching adulthood, the Mallard genes quickly make their way into the local Pacific Black Duck population.

Continue reading

New iNaturalist Project: Mount Bold Reservoir

As of December 2021 a section of the Mount Bold Reservoir has been opened up to the public. A 450 hectare area is now accessible, with more than 13km of walking trails, new carpark, toilets, and picnic facilities, and a new lookout platform.

There are three new walking trails along the southern side of the reservoir. A 1.3km Grade 2 Lookout Trail, and two Grade 5 trails at 5.1km (loop) and 9.4km (one way). See the full details including map on the Reservoirs SA website.

An iNaturalist Collection Project has been established to collect observations from across the Mount Bold Reservoir, even though much of the area is still restricted. This project has been added to the ‘Protected Parks of South Australia’ Umbrella project.