Adrian Fowles

Here, we determine annual estimates of occupancy and species trends for 5,293 UK bryophytes, lichens, and invertebrates, providing national scale information on UK biodiversity change for 31 taxonomic groups for the time period 1970 to 2015. The dataset was produced through the application of a Bayesian occupancy modelling framework to species occu...

This report contains a review of the Threat Status of 183 gastropods and 32 freshwater bivalve species at national level based on our current knowledge of the species. This complements the exercise carried out in Ireland (Byrne et al., 2009). In general over 70% of the British fauna are considered to be Least Concern with 9.4% (18 species) threaten...

The cave dwelling spider Porrhomma rosenhaueri (L. Koch) is unique to the British fauna as it is considered to be the only species of troglobiont spider present. This spider has a very limited distribution in the UK and is known only from two cave sites, both of which are in South Wales: Ogof y Ci near Merthyr Tydfil and Lesser Garth Cave near Card...

The cave dwelling spider Porrhomma rosenhaueri (L. Koch) is unique to the British fauna as it is considered to be the only species of troglobiontspider present. This spider has a very limited distribution in the UK and is known only from two cave sites, both of which are in South Wales: Ogof y Ci near Merthyr Tydfil and Lesser Garth Cave near Cardi...

Exposed Riverine Sediments (ERS) are often characterised by a high diversity of microhabitats due to strong lateral gradients in temperature, humidity, inundation frequency and availability of aquatic food resources and to variations in the degree of vegetation cover, sediment size and sorting. This variation, potentially in combination with inters...

Exposed riverine sediments (ERS) are habitat for a large number of rare and threatened specialist species of invertebrates and are of considerable conservation importance. Livestock trampling is believed to be one of the most widespread causes of damage to ERS habitats in the UK, and as such, its effects were the focus of this investigation. Beetle...

In common with many habitat elements of riverine landscapes, exposed riverine sediments (ERS) are highly disturbed, naturally patchy and regularly distributed, whose specialists are strongly adapted to flood disturbance and loss of habitat due to succession. Investigations of dispersal in ERS habitats therefore provide an important contrast to the...

The marsh fritillary is widely distributed in Wales, with over 200 populations identified in the past 15years. However, agricultural improvement, habitat fragmentation and changes in agricultural practices continue to impact on status and a decline in range of 23.5% was recorded over a 10-year period. Solutions must be applied at the landscape scal...

This research aimed to study the origin and the biogeographical relationships of the tenebrionid beetle (Coleoptera, Tenebrionidae) fauna of the island of Thasos, with reference to the other Aegean Islands. A total of 32 Aegean Islands and 170 taxa (species and subspecies), 23 of which occur on Thasos, were included in this study. Nine tenebrionid...

1. Exposed riverine sediments (ERS) are habitats for a large number of rare and specialized invertebrates and, as such, are of considerable conservation importance. Actions that threaten ERS specialists operate on a variety of scales and include river engineering, flow regulation and livestock damage. Populations of specific species of ERS speciali...

On the basis of the list of saproxylic beetles of Germany, the authors present a definition and list of “Urwald relict species”, comprising 115 beetles that are considered to be associated with primeval forest (“Urwald”) structures and features. We use the term “habitat tradition” to describe a continuity in supply of old growth dead wood and fores...

There are large numbers of records of uncommon beetles from exposed riverine sediments (ERS) (gravel, sand and silt shoals) in the UK. However, systematic surveys of their occurrence in relation to environmental controls are seldom undertaken. Data are presented here from a survey of 69 shingle ERS across England and Wales and used to establish whi...

Following a severe fire in 1986 on the estuarine raised mire of Cors Fochno, Wales, a larval transect was initiated across the burnt and unburnt sections to investigate the recovery of the rosy marsh moth Coenophila subrosea population. This paper reports the results of 16years of surveillance and relates larval density to the growth of the main fo...

Reporting requirements for species on Annex II of the EU Habitats Directive necessitate comprehensive monitoring to be put in place in order to determine whether Favourable Conservation Status has been achieved. The results of three years' monitoring of a population of Vertigo angustior in a dune-saltmarsh transition are presented. A sampling progr...

Nature reserves in Britain have been established by statutory conservation agencies, local authorities, voluntary conservation organizations, commercial companies and private individuals. While the majority of these sites have been selected for acquisition or lease because they represent good examples of particular biotopes, a few have achieved nat...

Assemblages of ground beetles were studied from peatland sites throughout Wales. Sampling stations were grouped into 14 habitats based on characters of hydrology, nutrient status, structure and management. The assemblage of ground beetles present in each habitat was examined to determine the frequency and abundance of each species. For most of the...

Presents the case for recognising and conserving the invertebrates and their habitats of a substantial part of the British Isles. After an introductory note, outlining the need and importance of invertebrate conservation, the report is divided into three main sections: North Wales region (counties of Gwynedd and Clywd); Dyfed-Powys region; and Sout...