The redwoods are special trees because of their size and age.  There are three species : the coastal redwood (Sequoia sempervirens ), the giant sequoia / redwood (Sequoiadendron giganteum), and the dawn redwood (Metasequoia glyptostroboides) They are the most massive trees on earth.  The coastal redwoods are the tallest of the three species.  The largest was measured to have a height of some 379 feet (115.5M).  Not only are these trees large but they are also impressive because of their longevity, Read more...

Weather-wise, it’s been a bit all over the place this Summer. However, the hotter spells punctuated by heavy downpours that characterise July, along with the dense leaf canopy of our broadleaf woodland areas at this time of year, have resulted in an at times oppressive humidity that seems particularly conducive to the first blooms of our more familiar cap-and-stem types of mushrooms and toadstools, marking a turning point that will take us within a couple of months to a period where our wooded areas will soon be flooded with fungi. Annoyingly, the summer months similarly see our woodlands buzzing with all manner of flying and biting insects, making it less tempting to head out and find and photograph the species more prevalent in this early period of mycological bounty! Read more...

Pine martens are woodland predators.  They have sharp teeth and prey upon small mammals e.g. squirrels (red and grey), birds, insects and frogs. They have also been known to eat carrion, berries, birds' eggs and nuts. Pine martens may be preyed upon by golden eagles and wildcats, but it is humans who have posed the most considerable threats to them.  At one time, their fur was considered desirable and, as they will attack game / small livestock, they were subject to illegal poisoning and shooting. The loss and fragmentation of woodland across the U.K. has also contributed to the decline in pine marten populations. Now, they are protected by law through the Wildlife and Countryside Act. Read more...

As a result of climate change, the physical characteristics of many ecosystems are changing. These changes may be in terms of humidity, temperature, soil moisture etc.  As a result, plants and animals may no longer be suited to the new conditions, to survive they need to 'move on'. For a species to stay in its ‘comfort zone’, it may need to move ‘northwards’ or ‘upwards’ as climate change continues.  Animals can walk or fly to new locations, even crossing inhospitable areas as long as the journey is brief.    However, plants have a problem; they can only move by their seeds being dispersed, by wind, water or animals (including humans), though occasionally by underground stems or rhizomes.  Not only that but the availability of suitable habitats to 'migrate to' is limited by the expansion of urbanisation and agriculture.   Forests, woodlands and meadows have been reduced to a patchwork of islands, separated by roads, housing, vast monocultures of oil seed rape etc.  Connections between natural areas are referred to as wildlife or biological corridors.  These 'patches' of natural features enable wildlife to disperse / migrate, acting as  'stepping stones'.   In a countryside that is becoming increasingly fragmented (across the UK and Europe) the role of wildlife corridors assumes greater importance.  Read more...

Humidity and bumblebees Recent research at the University of Bristol has shown that bumblebees are sensitive to the humidity of the air that surrounds flowers.  Being able to detect this sensory information affects the bees’ behaviour. Just as bees learn to recognise patterns, colour and the scent of particular flowers so they can distinguish humidity patterns.   How effective these humidity patterns are will depend on the immediate micro-environment of a flower - which may be affected by climate change.   Full details of this work can be accessed here : Willows and waste water Read more...

The appearance of bumblebees is one of the hallmarks of Spring, and their buzzing can be heard in gardens throughout the summer months.  They are important pollinators in our gardens, but also for some crop species that use buzz pollination (like tomatoes). Like other bees, indeed insects in general,  bumblebees face a number of threats - one of which is a fungal parasite (Nosema bombi). This fungus reduces the lifespan of worker bees in the bumblebee colonies and also the production of new queens; it has been associated with the decline in population numbers of North American bumblebees. Read more...