common spotted orchid | The Naturephile

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Lunchtime nature walk

Posted on October 15, 2012 | 27 comments

Several years ago I took a lunchtime walk around the lakes on the Science Park in Cambridge and the banks of one of the lakes to a depth of 5-10m was absolutely jumping with froglets. These little guys must have just emerged from the shallows en masse, there were literally 10’s of thousands of them and when I stood still it looked as though the grass was moving. It was an amazing sight.

I took another walk around the same lake this summer and the frogs were there again, not in anything like the numbers the first time I saw them, but big numbers nonetheless. They were the young of the common frog, Rana temporaria. Fortunately, this time I had a camera with me and I managed to get a picture of this little chap. As you can see, he was tiny, smaller than a clover leaf which was approximately 1cm across.

A tiny froglet seeking cover under a clover leaf

Scarce chaser in flight, reflected in the lake

The timing of my foray was just as the rains were subsiding and several species of darter, hawker and chaser dragonflies were busy hunting over the lakes, including this adult male scarce chaser, Libellula fulva. I’ve decided to try to photograph dragonflies in the act of doing soemthing other than sitting still and this the first shot I have of one flying. Not brilliant, but OK for a first attempt!

Because the Science Park is all neatly kempt and the grass cut regularly it’s not the best place to see wild flowers. So it was a pleasant surprise to see an orchid lurking in the undergrowth close to the lake where the blades of the grass cutters can’t reach.

Common spotted orchid – Dactylorhiza fuchsii

I think of all orchids as being terribly exotic, but this little beauty is relatively common, as its name suggests. It’s found over nearly all of the UK and thrives on a wide range of habitats including marshy wetland, chalk downland and also colonises wasteland. It’s a favourite food source for day flying moths and gets its name from the purple spotted leaves which are clearly visible on this flower.

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Posted in Amphibians, Anisoptera, Cambridge Science Park, Chaser dragonflies, Dragonflies, Flora and fungi, Frogs, Insects, Wild flowers

Tagged Anisoptera, Cambridge Science Park, chasers, common frog, common spotted orchid, Dactylorhiza fuchsii, dragonflies, frogs, Libellula fulva, Nature, orchids, Rana temporaria, scarce chaser, wildlife

Fenland safari

Posted on September 8, 2012 | 21 comments

Wicken Fen is the largest remaining area of true fen in England and has survived because it has been conserved by encasing it in what is effectively a gigantic plastic bag. The earth on the Fen is waterlogged and if the bag weren’t there the water would simply drain away leaving very rich agricultural soils but none of the wildlife associated with fenland habitats. Another result of the water retention is that the Fen is 6-8 feet above the surrounding farmland and the earth literally shakes if you jump hard on the ground as it’s like a saturated sponge.

Because of the water the predominant habitats are reedbeds and waterways which is reflected in the wildlife. The Fen is so rich in wildlife that a hike around there is like a mini safari! I was there on a hot and sunny Sunday morning in June and wildlife of all sorts abounded. In particular the insects were very busy. This dragonfly had recently emerged from the larval stage as an adult and was sitting in the grass drying out before taking to the air.

Black tailed skimmer youngster preparing for it’s first flights

The young skimmer was on the edge of a path which ran alongside one of the lodes (man made water courses) and on the water opposite the skimmer were lily pads and sitting on one of them was a damselfly, warming itself up in the morning sunshine.

Red eyed damselfly (Erythromma najas) in beautiful repose on a lily pad, surrounded by reflections of the clouds

And of course, that time of year is the season for lurv for many creatures, including this pair of variable damseflies (Coenagrion pulchellum) which are in the process of mating. The male is the blue one and he is clasping the female by gripping the back of her head – the pronotum – whilst she has pressed her genitalia against his abdomen to receive the sperm.

As well the inscect diversity the unique habitat of the Fen is home to lots of beautiful plants and flowers, including this common spotted orchid. This orchid is indeed common and can be found in fens, marshes and other wetlands all over England, but is rare in Scotland. Common, or not, I think all orchids are spectacular flowers and it was really good to see them in such numbers on the Fen.

Common spotted orchid – Dactylorhiza fuchsi

Whilst I was busying myself trying to get photogrpahs of the dragons and orchids a kestrel (Falco tinnunculus, Dansk: tårnfalk) was busy overhead. But even better than that a hobby (Falco subbuteo, Dansk: lærkefalk) was on the hunt for dragonflies and small birds.

The hobby is a small falcon which can be seen in these parts in the summer and hunts low over farmland and reedbeds at phenomenal speed. It’s one of very few predators that can hunt swallows and swifts in flight. This one was doing exactly that and in the distance, a few hundred metres away were at least another two. So I guess it was a family and the chicks had recently fledged and the adults were showing them the ropes. So I whiled away a good half an hour watching their breathtaking aerobatic exploits!

Brimstone butterfly sipping nectar from a thistle flower

I did volutary work at Wicken for 3 years or so back around the turn of the Millenium. It was incredibly rewarding and a good opportunity for a lab-based sedentary person such as myself to get outside and do some donkey work under the sky. One of the projects I worked on back then was scrub clearance to create an area suitable for butterflies to breed. I went and had a look at it on this walk for the first time since I helped to create it and it was very different. The scrub we cleared had been replaced by less scrubby, more proper woodland, trees, and there was small open glades with grasses and wild flowers. Whilst I was in there I flushed a leveret, which is about the closest I’ve ever been to a wild hare, it had been sitting tight but made a run for it when I got just a tad too close – about 5m!

So I didn’t manage a picture of the hare but I did manage a shot of the brimstone butterfly above (Gonepteryx rhamni), which I thought was absolutely lovely, sitting on the purple flower and framed by the two grass stems. It was terribly obliging and let me move all round it to get the best angle for a portrait. So this is about the best shot and one I’m very pleased with. I hope you like it too!