30 Days Wild – Day 9 – A Migrant Arrival

Another day spent largely in the garden doing various odd jobs. Just being outside means you cannot avoid wildlife, it was not particularly sunny, but warm enough to bring out lots of bees. I have some purple toadflax in the border and it is a great favourite as a nectar source for wool carder bee.

wool carder bee

wool carder bee (male)

This is the only species of this genus, Anthidium, in the UK, they are very distinctive and quite common in gardens. They get their name because the females make the nest cells by collecting fibres from woolly leaved plants such as lamb’s ear.

I grow a lot of plants because they are good nectar sources for insects and one of the best is Cephalaria gigantea a type of giant pale yellow scabious that can get up to 2m tall. Today these flowers scored with a painted lady, judging by the battered wings a migrant, probably hatched in the Mediterranean area somewhere.

painted lady

painted lady

They will breed here with the larvae feeding on thistles and emerging as adults in early autumn, these will then make a return migration southwards. This southward autumn movement had been speculated about, but unlike red admirals which can be seen heading south in late summer, painted ladies just seemed to disappear. It turns out they do head south, but mostly at high altitude, which is why we don’t see them.

Heading back inside I found a robberfly on the back door of the conservatory, I liberated it but managed to get one picture just before it flew off.

robberfly

Dioctria baumhaueri, A robberfly

They are predators, catching other flies and even small wasps in flight. They have large eyes to spot their prey and typically sit on exposed open perches, waiting to dart out and catch any suitable passing insect.

At this time of year conservatories can catch huge numbers insects, they act very like interception traps, especially with the doors open. I always leave several high windows open to give them the maximum chance of escape, ideally open rooflights if you have them.

What’s in My Meadow Today?

Perhaps unsurprisingly meadow buttercup, which really is the typical buttercup found in meadows. It has much taller flower stems than the more familiar creeping buttercup and more finely divided leaves.

meadow buttercup

meadow buttercup

I found I had one plant in my first year of managing the lawn as a meadow, but a single cut a year seems to really favour it and now there are a good few plants. In the picture you can see the brilliant yellow flowers and the extra shiny area towards the centre which acts as a mini solar reflector and increases the temperature of the flower’s centre. On the right you can see a seed head, a mass of seeds each with a tiny hook.

Back at Blashford Lakes tomorrow, I suspect I will be cutting path edges for at least part of the day, I hope it is not too warm.

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30 Days Wild – Day 24: Wild in the Garden

Gardens are also habitats, domesticated but at the same time with potential to be wild. They are very diverse and cover a large area when totalled together, but they are also dynamic, styles of gardening change over time and with changes of ownership. So however good for wildlife they might become they are individually precarious places for wildlife. An example of this is the change that happened to the garden of my former home, after twenty years something of a wildlife haven with breeding grass snake and slow worm, the new owners filled the pond, laid the whole to grass and fenced it to allow their dogs to roam safely. This is not to say that having a wildlife garden for twenty years was a waste of time. Lots of species will have benefited and most will have spread out to new homes and they will mostly have been species that are good at moving around to have got to my garden in the first place.

The more people that can find space for wildlife in their gardens the more “stepping stone” patches that wildlife can use to move about, potentially connecting populations and reducing local extinctions.

garden meadow

Lady’s bedstraw now flowering in our back garden mini-meadow

Such little patches of grassland will not make a huge difference on their own but when added to other nearby patches in other gardens, on road verges and playing field edges might add up to enough to support populations  of many insects such as this robberfly.

Dioctria baumhaueri

Dioctria baumhaueri with prey

Robberflies are predators, so if the habitat can support a predator it must also be supporting populations of its prey, the presence of predators is a positive sign.

It has been for sometime a mantra of conservationists that  we need a countryside that has habitats that are “Bigger, Better and more Joined-up”. Larger areas will support more species and be more resilient to species loss. It is useful if the patches actually join, so are contiguous, but if not then as close as possible with stepping stones or, better still, corridors between them. Contiguity, or if you prefer continuity of area is important as is continuity in time. Very short-lived bits of habitat will hold fewer species than ancient sites with very little change. Some specialists thrive on change and to do well need bare, new sites, rapidly being ousted by other species once things settle down, but even these species need a continuous supply of new sites, so continuity is still vital to their survival. Looking at habitat in this way, seeking the continuities can allow you to spot where the valuable sites are, even in the absence of wildlife records. It might also suggest what are the key habitats on which to concentrate management for the most positive outcomes.