Dispersal patterns of a saproxylic beetle,<i><scp>O</scp>smoderma eremita</i>, in<scp>M</scp>editerranean woodlands

Chiari, Stefano; Carpaneto, Giuseppe M.; Zauli, Agnese; Zirpoli, Giancarlo M.; Audisio, Paolo; Ranius, Thomas

doi:10.1111/j.1752-4598.2012.00215.x

Cited by 53 publications

(55 citation statements)

References 36 publications

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“…Generally dispersal abilities of the hermit beetle are very low, of the order of a few hundred metres. Radio-tracking yielded maximum flight distances of 180m (Hedin et al 2008), 700m (Dubois and Vignon 2008) and 1,504m (Chiari et al 2013). Other techniques confirmed this range of dispersal: 190m (Ranius and Hedin 2001) and 2,090m (Valainis et al 2015) with markrecapture studies, about 500m calculated with DNA markers (Oleksa et al 2013) and a maximum single flight distance of 1,454m and a maximum cumulative flight distance of 2,361m obtained with a flight mill (Dubois et al 2010).…”

Section: Species Studiedsupporting

confidence: 50%

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Spatial analysis of the habitat and distribution of Osmoderma eremita (Scop.) in trees outside of woodlands

Dodelin¹,

Gaudet²,

Fantino³

2017

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The endangered and specialised saproxylic beetle Osmoderma eremita occurs in veteran trees, a habitat particularly threatened by changes in agricultural landscapes. Its conservation requires information about populations and key features of host trees. Surveys of 8,014 trees (pollarded or in hedgerows) were carried out and analysed, based on habitat description (tree level) and spatial information (hedgerow length and distance to the nearest inhabited tree). A suitable cavity was present in 61% of the trees and O. eremita was detected in 42 trees, mainly in Salix (30 observations), the most common tree amongst those surveyed. A small or absent crown was a significant factor in explaining the beetle's presence, as was the distance to the nearest inhabited tree. The largest population of O. eremita, 19 inhabited trees, was found in a wide and continuous area formed by trees with suitable cavities, with distances of less than 250m from each another. Seven smaller areas, with 7, 5 or 1 inhabited trees, were also found. When analysing inhabited trees on a 1km² grid, 17km 2 hosted O. eremita, corresponding to a dense network of 63km of hedges. The presence of O. eremita significantly increased per km² with increasing length of hedges and this variable was thus used to guide forthcoming investigations directed toward Osmoderma. As the hedgerows existing in 1999 had decreased by 6.1% in 2009, it is concluded that the long term survival of O. eremita is under threat. The preservation of trees outside woodlands is urgent and has already started, in connection with Natura 2000 policies. Regeneration and creation of new hedgerows is also ongoing and can be reinforced both by using Salix and by promoting pruning to increase formation of cavities. RESEARCH ARTICLE Launched to accelerate biodiversity conservation A peer-reviewed open-access journalBenoît Dodelin et al.

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Section: Species Studiedsupporting

confidence: 50%

“…In contrast, in Italy, smaller populations per tree have been found and dispersing adults are exposed to a high predation rate (at least 28%) (Chiari et al 2013). According to this study, 39% of dispersing individuals reached distances of greater than 250m.…”

Section: Species Studiedmentioning

confidence: 99%

Spatial analysis of the habitat and distribution of Osmoderma eremita (Scop.) in trees outside of woodlands

Dodelin¹,

Gaudet²,

Fantino³

2017

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“…Two-year monitoring study carried out by Chiari et al (2013), regarding the spreading of hermit beetles in the forests of cork oak in central Italy showed that 39% of the population of this species dispersed only to 250 m. The longest migration observed was 1504 m. On a single tree was found only a few specimens in imago form. Most adults leave their tree.…”

Section: Resultsmentioning

confidence: 99%

Hermit beetle’s (Osmoderma eremita Scopoli, 1763) occurrence in roadside double row of willows

Dusza

Gamrat

2016

Acta Biologica

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The aim of the research presented in this paper was to assess the state of trees' health in roadside double row of aged white willows regarding the possibility of the protected species of hermit beetle's occurrence. The study was conducted in years 2013 and 2014 on a double row of trees located along the roadside of unpaved local road connecting two farms in the Kuyavian-Pomeranian Voivodeship (town Jarantowiczki, Wąbrzeźno district, municipality of Wąbrzeźno). Detailed study included 500 m long section of double row topped tree formation of aged white willows Salix alba, on which the presence of hermit beetle Osmoderma eremita was observed. The most serious threat to the hermit beetle is tree-felling in aged tree rows, which are their natural habitat and at the same time ecological corridor that allows connectivity with other populations of this species in the area. Therefore, it is important to preserve in the agricultural landscape as many cavity trees as possible. Especially important within this matter is to conduct local research on small areas, and provide detailed inventories of natural areas for investment.Występowanie pachnicy dębowej Osmoderma Eremita Scopoli, 1763 w przydrożnym szpalerze wierzbowym Słowa kluczowe Osmoderma eremita, Salix alba, szpaler drzew, przydroże Streszczenie Celem badań przedstawionych w niniejszym artykule jest ocena stanu zdrowotnego drzew przydrożnego szpaleru wiekowych wierzb białych pod kątem możliwości wystąpienia chronionego chrząszcza -pachnicy dębowej. Badania przeprowadzono w latach 2013-2014 na szpalerze drzew przydrożnych zlokalizowanym wzdłuż nieutwardzonej drogi gminnej łączącej dwa gospodarstwa rolne w województwie kujawsko-pomorskim (miejscowość Jarantowiczki, powiat wąbrzeski, gmina Wąbrzeźno). Badaniami szczegółowymi objęto 500 m odcinek zadrzewienia szpalerowego zdominowany przez ogłowione, stare wierzby białe Salix alba, na którym obserwowano obecność pachnicy dębowej Osmoderma eremita. Najpoważniejszym zagrożeniem dla pachnicy dębowej jest wycinka starych alei drzew, które są ich siedliskiem i jednocześnie korytarzem ekologicznym umożliwiającym łączność z pozostałymi populacjami tego gatunku na danym terenie. Dlatego tak ważne jest zachowanie Elżbieta Dusza, Renata Gamrat 36 w krajobrazie rolniczym starych dziuplastych drzew. Szczególnie istotnym w tym zakresie staje się prowadzenie badań lokalnych, na niewielkich obszarach oraz szczegółowe inwentaryzacje przyrodnicze obszarów przeznaczonych do zainwestowania.

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“…imagines are attracted to sites of incorrectly assessed habitat quality, where reproduction is impossible or ineffective. Unfortunately, however, the mechanisms by which dead wood attracts saproxylic beetles are more complex, mostly because the propagation of the chemical signal depends on numerous local conditions, such as weather as well as micro-and mesoclimatic parameters (Hedgren 2007;Svensson and Larsson 2008;Chiari et al 2013). Moreover, recent studies have demonstrated the presence of an aggregating pheromone produced by the Rosalia longicorn (Žunic-Kosi et al 2017).…”

Section: Discussionmentioning

confidence: 99%

Potential range of impact of an ecological trap network: the case of timber stacks and the Rosalia longicorn

Adamski

Michalcewicz²,

Bohdan³

et al. 2018

J Insect Conserv

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Although the negative impact of timber stacks on populations of saproxylic beetles is a well-known phenomenon, there is relatively little data concerning the scale of this impact and its spatial aspect. Beech timber stored in the vicinity of the forest can act as an ecological trap for the Rosalia longicorn (Rosalia alpina), so in this study we have attempted to determine the spatial range of the impact of a network of timber stacks. Timber stacks in the species' range in the study area were listed and monitored during the adult emergence period in 2014-2016. Based on published data relating to the species' dispersal capabilities, buffers of four radii (500, 1000, 1600, 3000 m) were delineated around the stacks and the calculated ranges of potential impact. The results show that the percentage of currently known localities of the Rosalia longicorn impacted by stacks varies from 19.7 to 81.6%, depending on the assumed impact radius. The percentage of forest influenced by timber stacks was 77% for the largest-radius buffer. The overall impact of the ecological trap network is accelerated by fragmentation of the impact-free area. It was also found that forests situated close to the timber stacks where the Rosalia longicorn was recorded were older and more homogeneous in age and species composition than those around stacks where the species was absent. Such results suggest that timber stacks act as an ecological trap in the source area of the local population.

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Dispersal patterns of a saproxylic beetle,Osmoderma eremita, inMediterranean woodlands

Cited by 53 publications

References 36 publications

Spatial analysis of the habitat and distribution of Osmoderma eremita (Scop.) in trees outside of woodlands

Spatial analysis of the habitat and distribution of Osmoderma eremita (Scop.) in trees outside of woodlands

Hermit beetle’s (Osmoderma eremita Scopoli, 1763) occurrence in roadside double row of willows

Potential range of impact of an ecological trap network: the case of timber stacks and the Rosalia longicorn

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