6 research outputs found
Alien beetle species in the republic of Moldova: A review of their origin and main impact
Osmoderma eremita (Coleoptera, Scarabaeidae, Cetoniinae) in Europe
Osmoderma eremita (Coleoptera, Scarabaeidae, Cetoniinae) en Europa.¿ La investigación, el control y el desarrollo de estrategias de conservación de especies amenazadas en peligro de extinción están habitualmente confinadas por fronteras nacionales aunque serÃa más apropiado una perspectiva más global. En este trabajo se recogen datos sobre la presencia de un escarabajo en peligro de extinción, Osmoderma eremita, asociado a huecos de árboles en las 2.142 localidades de 33 regiones de Europa donde se ha encontrado. La larva se desarrolla en los huecos de los árboles y se ha observado pocas veces en troncos muertos en el suelo. Parece ser que O. eremita es capaz de utilizar cualquier especie de árbol siempre que tenga un hueco disponible. Los árboles más utilizados por O. eremita son los robles (Quercus spp.), seguidos del tilo (Tilia spp.), el sauce (Salix spp.), el haya (Fagus sylvatica) y los árboles frutales (Prunus spp., Pyrus spp., Malus domestica). O. eremita se encuentra todavÃa en algún remanente de bosque natural, pero se observa principalmente en tierras que han sido usadas por el hombre como zonas de bosques aclarados, cotos de caza, avenidas, parques urbanos y en árboles alrededor de campos agrÃcolas y a lo largo del curso de rÃos. Parece ser que la presencia de O. eremita ha disminuido en todas las regiones europeas. Las mayores concentraciones de localidades con presencia de O. eremita aparecen en Europa central (norte de Italia, Austria, República Checa, sur de Polonia y Alemania del este), en algunas partes del norte de Europa (sureste de Suecia, Latvia) y en Francia. En algunas regiones del noroeste de Europa, se ha extinguido o puede encontrarse de forma aislada (Noruega, Dinamarca, PaÃses Bajos, Bélgica, noreste de Francia). Hay pocos datos del sureste europeo. Se prevén algunas extinciones locales de O. eremita en un futuro inmediato, especialmente en regiones con una pérdida y fragmentación del hábitat. O. eremita es una especie útil como indicador y paraguas para la preservación de toda la comunidad de invertebrados asociados a los agujeros de árboles en Europa. Un plan de preservación de O. eremita deberÃa incluir tres aspectos que son de importancia general en la conservación de la naturaleza en Europa hoy en dÃa: (1) preservación de los remanentes de bosques naturales con árboles viejos, (2) preservación y restauración de hábitats relacionados con los paisajes agrÃcolas tradicionales y (3) preservación de las "islas" de naturaleza que se mantienen en áreas urbanas
Osmoderma eremita (Coleoptera, Scarabaeidae, Cetoniinae) in Europe
Research, monitoring and development of preservation strategies for threatened species are often limited by national borders even though a global perspective would be more appropriate. In this study, we collected data on the occurrence of a threatened beetle, Osmoderma eremita, associated with tree hollows in 2,142 localities from 33 countries in Europe where it is or has been present. The larvae develop in tree hollows and very few observations of larvae have been observed in dead logs on the ground. As long as there is a suitable tree hollow, it appears that O. eremita may use any tree species. Oaks (Quercus spp.) are the trees mainly used by O. eremita, followed by lime (Tilia spp.), willow (Salix spp.), beech (Fagus sylvatica) and fruit trees (Prunus spp., Pyrus spp., Malus domestica). O. eremita is still found in some remnants of natural forest, but is mainly observed on land that has long been used by man, such as pasture woodlands, hunting parks, avenues, city parks and trees around agricultural fields and along streams. The occurrence of O. eremita seems to have decreased in all European countries. Relatively high densities of O. eremita localities occur in Central Europe (northern Italy, Austria, Czechia, southern Poland and eastern Germany), some parts of Northern Europe (south-eastern Sweden, Latvia) and France. In some regions in north-western Europe, the species is extinct or may occur at some single sites (Norway, Danish mainland, The Netherlands, Belgium, north-eastern France). There are few data from south-eastern Europe. Many local extinctions of O. eremita are to be expected in the near future, especially in regions with recent habitat loss and fragmentation. O. eremita is useful as an indicator and umbrella species for the preservation of the entire invertebrate community associated with hollow trees in Europe. A preservation plan for O. eremita should include three aspects that are of general importance in nature conservation in Europe today: (1) preservation of remnants of natural forests with old, broad-leaved trees, (2) preservation and restoration of habitats related to traditional agricultural landscapes and (3) preservation of remaining ‘islands’ of nature in urban areas
Osmoderma eremita (Coleoptera: Scarabaeidae: Cetoniinae) in Europe
Osmoderma eremita (Coleoptera, Scarabaeidae, Cetoniinae) in Europe.— Research, monitoring and
development of preservation strategies for threatened species are often limited by national borders even
though a global perspective would be more appropriate. In this study, we collected data on the occurrence
of a threatened beetle, Osmoderma eremita, associated with tree hollows in 2,142 localities from 33
countries in Europe where it is or has been present. The larvae develop in tree hollows and very few
observations of larvae have been observed in dead logs on the ground. As long as there is a suitable tree
hollow, it appears that O. eremita may use any tree species. Oaks (Quercus spp.) are the trees mainly
used by O. eremita, followed by lime (Tilia spp.), willow (Salix spp.), beech (Fagus sylvatica) and fruit trees
(Prunus spp., Pyrus spp., Malus domestica). O. eremita is still found in some remnants of natural forest,
but is mainly observed on land that has long been used by man, such as pasture woodlands, hunting
parks, avenues, city parks and trees around agricultural fields and along streams. The occurrence of O.
eremita seems to have decreased in all European countries. Relatively high densities of O. eremita
localities occur in Central Europe (northern Italy, Austria, Czechia, southern Poland and eastern Germany),
some parts of Northern Europe (south–eastern Sweden, Latvia) and France. In some regions in
north–western Europe, the species is extinct or may occur at some single sites (Norway, Danish
mainland, The Netherlands, Belgium, north–eastern France). There are few data from south–eastern
Europe. Many local extinctions of O. eremita are to be expected in the near future, especially in regions
with recent habitat loss and fragmentation. O. eremita is useful as an indicator and umbrella species for
the preservation of the entire invertebrate community associated with hollow trees in Europe. A preservation
plan for O. eremita should include three aspects that are of general importance in nature conservation
in Europe today: (1) preservation of remnants of natural forests with old, broad–leaved trees, (2)
preservation and restoration of habitats related to traditional agricultural landscapes and (3) preservation
of remaining "islands" of nature in urban areas.
Key words: Saproxylic, Cavity, Habitat Directive, Pollarding, Bioindicator, Scarabaeoidea
Bionomics and distribution of the stag beetle, Lucanus cervus (L.) across Europe.
1. The European stag beetle, Lucanus cervus, is thought to be widely distributed
across its range, but a detailed description of its occurrence is lacking.
2. Researchers in 41 countries were contacted and information sought on various
life history characteristics of the insect. Data on adult body size were collected from
seven countries.
3. Habitat associations differ between the United Kingdom and mainland Europe.
Larvae are most commonly associated with oak, but the duration of the larval stage
and the number of instars varies by up to 100% across Europe.
4. Adult size also varies; beetles from Spain, Germany, and the Netherlands are
larger than those from Belgium or the UK. In the former countries, populations are
composed mainly of large individuals, while in the UK, the majority of individuals
are relatively small. Allometric relations between mandible size and total body length
differ in Germany compared with the rest of Europe.
5. Distribution maps of the insect, split into records pre- and post-1970, from 24
countries are presented. While these inevitably suffer from recorder bias, they indicate
that in only two countries, Croatia and Slovakia, does the insect seem to be
increasing in range.
6. Our data suggest that the insect may be in decline across Europe, most likely
due to habitat loss, and that conservatio