Wild news from our reserves – 1 September 2023

Wild news from our reserves – 1 September 2023

Wasp spider at Castle Marshes - Lewis Yates 

As summer ends, our reserves are still full of wonderful wildlife. This week’s highlights were hundreds of toads, a wasp spider, fen raft spider webs and knopper galls.

Knopper galls

The larvae of the knopper gall wasp, Andricus quercuscalicis, produce bowl shaped 'galls' on the acorns of pedunculate oak trees, like these at Gunton Meadow. The galls form around this time of year, becoming sticky and red, and then turn woody and brown later in the year.  

Knopper galls at Gunton Meadow - Lewis Yates

Knopper galls at Gunton Meadow - Lewis Yates 

Toads galore

Warden Lewis Yates spotted hundreds of these young toads at Gunton Meadow recently. Please tread carefully if you visit – toadlets are well-camouflaged, making them hard to spot until they leap. 

Common toad at Gunton Meadow - Lewis Yates

Common toad at Gunton Meadow - Lewis Yates 

Wasp spider

Female wasp spiders look stunning at this time of year, this one was seen at Castle Marshes. Female wasp spiders are great mimics - looking just like a common wasp keeps them safe from predators, even though they are not dangerous.  Wasp spiders build large orb webs in grassland and heathland and attach their silk egg-sacs to the grasses. The web has a wide, white zig-zag strip running down the middle, known as a 'stabilimentum', the function of which is unclear. 

Wasp spider at Castle Marshes - Lewis Yates

Wasp spider at Castle Marshes - Lewis Yates 

Counting webs

Warden Lewis Yates completed the annual count of fen raft spider webs at Castle Marshes this week – annual surveys give us useful information about the population and range of the spiders on the reserve. As you can see in the image below, they are not easy to spot! 

Fen raft spider surveys at Castle Marshes - Lewis Yates

Fen raft spider surveys at Castle Marshes - Lewis Yates 

Blue moon

Lound Lakes Warden Andy Hickinbotham took this amazing image of the blue supermoon lighting up the reserve on Wednesday night.  

Super Blue Moon lighting up Lound Lakes - Andy Hickinbotham

Super blue moon lighting up Lound Lakes - Andy Hickinbotham 

Reserve maintenance

Meanwhile the work continues, keeping our reserves in optimum condition and our conservation grazers safe. 

Thank you!

Our magnificent team of volunteers at Carlton Marshes have spent the last 2 weeks raking and clearing Sprats Water, which will result in increased floristic diversity next year. Warden Gavin shares his thanks for them: “As a reserves team we just could not physically complete all the labour intensive tasks that need doing throughout the year without people like these who cheerfully give up their free time to help us. Amazing people, all of them and very much appreciated.” 

Carlton Marshes volunteers – Gavin Durrant

Carlton Marshes volunteers – Gavin Durrant