The Knowle [Oct 2022]



The Knowle

2nd October 2022

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On my walk ... the marmalade hoverfly

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  Distinguishing between some species of hoverfly can be a real challenge, some species can only be told apart by examination under a microscope but that means capturing and killing a specimen and I am not about to do that. Mine is a hobby project not a scientific study. Some species, however, are distinctive enough to be identified even from a distance and this one [ Episyrphus balteatus]  being only 10mm or so in length is one of those more easily identified specimens. It is a slender insect with a quite distinctive shaped abdomen and has a unique pattern of markings on its back. Usually orange and with three alternate pairs of thick and narrow black bars it has earned the nickname of the marmalade hoverfly but you probably will not find it referred to as that in reference books. This particular insect caught my eye as it has three grey bands and I wondered if it was something other than 'balteatus' but upon reference to my 'bible' on hoverflies I find the markings ca...
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On my walk ... the herring gull

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  On any stroll along the prom in Sidmouth you will see herring gulls. Despite popular belief herring gull populations are in decline as they struggle with diminishing natural food supplies and nesting habitats. They have become quite resourceful and have adapted their behaviour to nest on roof tops and to scavenge for scraps that humans leave behind although that scavenging seems to be reaching the point where they will boldly take food before humans have left it behind! The herring gull is a stocky bird and not something one would wish to tangle with especially when it is in the air near you and in some places it is claimed visitors are staying away because of the gulls. In Swanage recently a local started a petition to try and get the town council to 'cull' them as they are considered to be a nuisance. It is, I think, a shame that we humans act in a way that encourages animals to become what we then consider to be a nuisance and then our answer is to want to kill off the poo...
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On my walk ... the rock samphire

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  Walking the paths by the sea even though it is getting late in the season it is still possible to see this 'iconic' flower of the seaside, rock samphire [ Crithmum maritimum] . It is one of those plants that seems capable of growing in the most extreme conditions and, indeed, only grows in extreme conditions, on rocks, walls, shingle and barren conditions exposed to the weather and sea spray. Rock samphire looks as though it is not quite in flower even when it is! The flowers are cream or green and are umbrella shaped which is quite typical of the carrot family to which it belongs. Unlike other carrots however the leaves are very fleshy and this helps it store moisture and so thrive where other flowers cannot. It is also known as sea fennel and sea asparagus or just plain samphire but the name samphire is also used for other seaside plants such as glasswort. There is also a golden samphire which is totally unrelated.  This was once a popular food plant and was harvested and ...
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