Nicklas Jansson

• PhD
• Researcher at Linköping University

The number and area of forest fires in northern Europe have been dramatically reduced during the past century, and several fire-favoured species are now threatened. To promote the recovery of these species, prescribed burning is often used as a conservation measure, and to optimise the use of these conservation burns, knowledge is needed on suitabl...

A selection of twelve rarely collected Tenebrionidae species, including new country records, coming from the Turkish Oak Habitat Project (TOHP), a large-scale study of the fauna of old oaks in Türkiye, is highlighted. Pentaphyllus testaceus (Hellwig, 1792), Philhammus aharonii (Reitter, 1910), Stenosis fulvipes (Reiche & Saulcy, 1857), and Tenebrio...

Many species of beetles from the family Scarabaeidae reflect light with near-circular polarization. In some cases, spectral narrow-band polarization phenomena result in a distinct color with a metallic shine. In other cases, broad-band features are seen, and these beetles have a silvery or goldish appearance. These features in the cuticles originat...

This research was conducted to investigate the saproxylic Coleoptera fauna found in oak trees of different ages in Mersin/Gülnar in the Eastern Mediterranean Region in 2017. Fourty-five window traps were used to sample the beetles on the oak trees. Traps were checked five times, once a month, from June to October. In total, 13 217 individuals from...

Cork oak landscapes are fascinating ecosystems, historically managed for cork extraction. The persistence in this habitat of many hollow veteran trees provides suitable micro‐habitats for saproxylic beetles. We investigated the saproxylic beetle community of two isolated cork oak woodlands of central Italy with different degree of recovery after hu...

Achieving sustainable development as an inclusive societal process in rural landscapes, and sustainability in terms of functional green infrastructures for biodiversity conservation and ecosystem services, are wicked challenges. Competing claims from various sectors call for evidence-based adaptive collaborative governance. Leveraging such approach...

Context Maintaining functional green infrastructures (GIs) require evidence-based knowledge about historic and current states and trends of representative land cover types. Objectives We address: (1) the long-term loss and transformation of potential natural forest vegetation; (2) the effects of site productivity on permanent forest loss and emerg...

The main purpose of the study was to determine the species belonging to Oder Coleoptera living in 9 different biotopes in the coniferous and broadleaf forest areas (Pinus pinea, P.brutia, P.nigra, Abies sp., Fagus orientalis, Carpinus sp., Quercus sp. ve Alnus sp.) of Çataldağ-Karşıyaka Chief in the Susurluk district of Balıkesir Province. In this...

Bu çalışma 2017-2018 yıllarında Nisan-Kasım ayları arasında Balıkesir İli’nin Çataldağ çevresinde meşe ve kayın ormanlarının zeminde yaşayan kınkanatlı faunasının (Coleoptera) tespit edilebilmesi amacıyla bitki döküntülerinin Reitter kalburu ile elenmesiyle gerçekleştirilmiştir. Çalışma sonucunda Carabidae, Staphylinidae, Elateridae, Cleridae, Cera...

This paper describe the story behind the beetle (wood mould) boxes we (I and Thomas Ranius, SLU, Sweden) have created for mimicing the habitat in tree trunk cavities.

The purpose of this symposium is to provide an up‐to‐date discussion in the field of “Silvopastoral Systems and Nomadic Societies” in general. ISNOS-MED 2018 is focused on the topics : Land Use Systems, Agriculture, Forestry, Agroforestry, Ecosystem Services, Climate Change, Rural Development, Social Forestry, Community Forestry, Farm Forestry, Buf...

A new darkling beetle species, Corticeus turcicus F. Soldati, sp. nov., is described from six localities in Turkey. The only related species in Europe and the whole Mediterranean basin seems to be C. unicolor Piller & Mitterpacher, 1783 from which it differs by the smaller body size, yellowish coloration, different with ratio between pronotum and e...

Wood-pastures are disappearing rapidly in the eastern Mediterranean basin due to changes in land use. Traditional farming by means of goat husbandry and pollarding has allowed many trees to become old, creating valuable habitats for biodiversity. Developing viable management schemes for habitats of conservation concern require studies aiming at ide...

A total of 23 species of Coleoptera Elateridae were collected. Three of them, two belonging to the genus Ampedus De-jean, 1833 and one to the genus Cardiophorus Eschscholtz, 1829, are described as new. Elatéridos (Coleoptera, Elateridae) de dos áreas con robles huecos y plátanos de Turquía Resumen: Se colectaron 23 especies de Coleoptera Elateridae...

Biodiversity is fundamental for ecosystem functioning, but little is known about how function responds to biodiversity loss following habitat disturbance in natural systems. Due to the global decay of veteran trees, many associated saproxylic (i.e. deadwood-dependent) insects are considered threatened. Nevertheless, the role of habitat spatial conf...

Describing the high values of old oaks in Turkey found during 12 years of studying saproxylic beetles and birds.

Saproxylic beetles are insects that depend on dead and decaying wood for at least part of their lifecycle, and play important ecological roles in European habitats (Speight 1989, Alexander 2008, Stokland et al. 2012). Together with fungi, they contribute to the break-down of deadwood and are involved in decomposition processes and the recycling of...

This document provides the Red List Category and Criteria for all the saproxylic beetle species assessed on the IUCN European Red List, as part of the LIFE funded project ‘Establishing a European Red List of Bryophytes, Pteridophytes, Saproxylic Beetles, Terrestrial Molluscs and Vascular Plants (LIFE European Red Lists; LIFE14 PRE/BE/000001)

This paper presents a comparative analysis of expert opinions on forest biodiversity indicators for protected areas, using a questionnaire given to forest experts in Turkey and Sweden. Experts were selected according to whether they had studied or worked in areas related to biodiversity, protected areas and sustainable forest management. A Mann-Whi...

Mycetochara melandryina is endemic to Slovakia and since its original description in 1934, from a single male specimen, only one additional specimen has been reported. This species is precautionarily assessed as Critically Endangered since it has a restricted geographic range (extent of occurrence (EOO) is estimated to be 20 km², and known area of...

A photodocumentation of one of our research areas in Turkey. Showing the human activity with grazing and pollarding of the oaks but also some of the fantastic insects living in this oak habitat in southern Turkey.

The Mediterranean basin exhibits a multitude of forest habitats affected by former and current exploitation and management. Recent afforestation programs have resulted in an increase in the proportion of coniferous trees, while Oak stands (Quercus spp), formerly utilized for pollarding, coppicing and grazing, are abandoned or converted into conifer...

The oaks (Quercus spp) are very species rich and in Turkey at least 18 species of oaks are found. The oaks in Turkey cover more than 20% of the forest land and are spread on many nature types all over the country. The oaks can be very old and harbor a rich and specialized fauna and flora. In our studies of six sites with old hollow oaks in the Medi...

The oaks (Quercus spp) are very species rich and in Turkey at least 18 species of oaks are found. The oaks in Turkey cover more than 20% of the forest land and are spread on many nature types all over the country. The oaks can be very old and harbor a rich and specialized fauna and flora. In our studies of six sites with old hollow oaks in the Medi...

We used three woodpecker species as umbrella species for old deciduous forests, and analysed their preferences in an area with old pollarded oaks in the Taurus Mountains, Turkey. Using plot inventories, we physically characterised trees utilised for nesting and foraging amongst woodpeckers in general and the Middle Spotted Woodpecker (Leiopicus med...

Old living oaks (Quercus robur) are known as a very species-rich habitat for saproxylic beetles, but it is less clear to what extent such veteran trees differ from an even rarer feature: downed trunks of large oaks. In this study, we set out to sample this habitat, using window traps, with two aims: (1) to describe the variation of assemblages amon...

Appendix S1. Saproxylic species recorded in traps placed on downed trunks of large oaks, their red‐list status (according to Gärdenfors 2010), and their frequency in 40 window traps.

Appendix S2. Saproxylic species included in the contrast between downed trunks of oaks and living veteran oaks.

Many saproxylic species are threatened in Europe because of habitat decline. Hollow trees represent an important habitat for saproxylic species. Artificial habitats may need to be created to maintain or increase the amount of habitat due to natural habitat decline. This study investigated the extent to which saproxylic beetles use artificial habita...

Ancient trees are considered one of the most important habitats for biodiversity in Europe and North America. They support exceptional numbers of specialized species, including a range of rare and endangered wood-living insects. In this study, we use a dataset of 105 sites spanning a climatic gradient along the oak range of Norway and Sweden to inv...

Table S2. Categorization of dead wood inhabiting beetles species according to oak association and primary geographical distribution.

Table S1. Location of all 308 oaks from 105 sites sampled for beetles in the present study.

Table S3. Results of backwards stepwise selection of six models all including four predictor variables: Temperature, Precipitation, Oak Circumference and Openness around trees.

Fire-favoured insects are difficult to sample except opportunistically after forest fires. Here, we tested if smoke from a small fire could be an efficient way to sample such insects. Insects were sampled over ca. 10 h hours, by hand-picking and netting on screens put up around the fire. Two specimens of the rare and redlisted Hormopeza spp. (Dipte...

This paper updates our present knowledge on the geographical distribution and host plant relationships of Turkish species of the sap-and pollen-beetle family Nitidulidae. Pria zenobia Jelinek, 1997 from eastern Mediterranean areas is synonymized with Pria angustula Cooper, 1982, from South Africa (syn. nov.). The unknown ovipositor of Xerogethes os...

In a study of the saproxylic beetle fauna of old hollow oaks (Quercus spp.) in Turkey (Balikesir and Adiyaman) 37 species of the family Elateridae were found. Two of the species, Brachygonus ruficeps and Dicronychus berrai, were new to Turkey. Three species, Elathous tezcani, Melanotus balikesirensis and Cardiophorus adiyamanensis, were new to scie...

Many saproxylic insects have declined or became extinct, mainly due to habitat loss and fragmentation, and their survival increasingly depends on active conservation. Efforts to achieve this goal may be supported by the introduction of new methods, including creation of artificial habitats. Here we present results of studies on the use of wooden bo...

Many wood‐dwelling beetles rely on old hollow trees. In Europe, oaks are known to harbour a species‐rich saproxylic beetle fauna, while less is known regarding other broad‐leaved tree species. Furthermore, the extent to which saproxylic insect species have specialised on different tree species remains unknown. In this study, we sampled beetles thro...

The rare beetle Elater ferrugineus was sampled at 47 sites in the county of Östergötland, Sweden by means of pheromone-baited traps to assess its value as an indicator species for hollow oak stands rich in rare saproxylic beetle species. In addition, Osmoderma eremita was also sampled with pheromone baits. These data were then compared against spec...

The saproxylic beetle fauna on old hollow oaks were studied in Kazdağı National Park near Edremit, Balıkesir in Turkey in 2011. In the material, a new species from the family Tenebrionidae (Alleculinae) was found. This species, Mycetochara kazdagiica Novák sp. nov., is described, illustrated and compared with the similar species Mycetochara axillar...

The European red click beetle, Elater ferrugineus L., is associated with wood mould in old hollow deciduous trees. As a result of severe habitat fragmentation caused by human disturbance, it is threatened throughout its distribution range. A new pheromone-based survey method, which is very efficient in detecting the species, was used in the present...

All the information on the genus Eledonoprius was gathered to provide an up to-date overview of the geographical distribution and ecology of its species, and to assess their association with old-growth forests. Based on recent samples collected in deciduous forests and woodlands of Italy, the authors outline the habitats of these rare species and g...

A b s t r a c t : A new species of the genus Sepedophilus GISTEL from Turkey (Coleoptera, Staphylinidae, Tachyporinae). In 2009 saproxylic beetles were studied with flight interception traps on old hollow oak trees (Quercus spp.) in the province of Adana in southern Turkey. Two specimens of a new species of the genus Sepedophilus GISTEL 1856, Seped...

In a study of the saproxylic beetle fauna of old hollow oaks (Quercus frainetto Tenore 1813) in western Turkey (Edremit, Balıkesir) a new species from the Histeridae family was found. Hister arboricavus is described and illustrated. Additionally, its systematic position and ecological specialization is discussed.

A new species of comb-clawed beetle, Allecula suberina Novák sp. nov., is described, illustrated and compared with all western Palaearctic species. The new species is probably saproxylic, as are other species in the genus, because all specimens were collected by traps set within or near tree cavities on old hollow cork oaks (Quercus suber).

A new species of Epuraea, Epuraea sutcuimamun Avgin, Lasoń & Audisio sp. n., from southern Turkey (Taurus Chain) was identified using morphological analyses. This species is a member of a circum-Mediterranean endemic group of sap beetles, the Epuraea latipes species group of the Dadopora lineage, which are mostly associated with cedar (Cedrus spp.)...

A key aspect for understanding species distributions is how they respond to habitat factors at different spatial scales. In this study we used a dataset mapping 33,000 large/hollow oaks, habitat for a guild of saproxylic beetles specialised on oaks at an extent of 10,000km2. A total of 16 oak-dependent saproxylic species, out of 35, showed a clear...

Old oaks (Quercus spp.) and their fauna are rare and threatened all over Europe including Turkey. Preliminary results are presented from a study in Turkey using window traps in a cemetery with old hollow oaks. In total, 87 beetle species were identified and the number of beetle species was the highest from the families Elateridae, Anobiidae and Ten...

Preliminary report on a survey of the saproxylic beetle fauna living on old hollow oaks (Quercus spp.) and oak wood in Turkey (Coleoptera: Cerambycidae). Munis Entomology & Zoology, 6 (2): 819-831] ABSTRACT: 45 species of Cerambycidae collected during a survey of the saproxylic beetle fauna ecologically associated with the hollows of old oak trees...

During ecological investigations on saproxylic beetle communities of central Italy (Latium), at Bosco Polverino (a mixed evergreen/deciduous forest fragment dominated by cork oaks), and at Allumiere (a small fragment of beech forest surrounded by turkey oak stands), the authors found three specimens of Pityophagus quercus Reitter, 1877 (Coleoptera,...

Thirteen new species of click beetles belonging to genera Elathous, Agriotes, Ampedus, Brachygonus, Elater, Peripontius, Tolphorea, Cardiophorus and Dicronychus are described. They were collected with traps on od oaks (Quercus spp.) mainly from three localities of the southern Mediterranean coast of Turkey. Another species, Crepidophorus mutilatus...

Old oaks (Quercus spp) are rare all over Europe and Turkey and members of the fauna living in these habitats are threatened. Nine stands with old hollow oaks, spread on fi ve areas, were studied in Turkey over 2005-2009. In total 90 hollow oaks were studied. The studied oak species are Quercus cerris, Q. infectoria, Q. trojana, Q. libanii, Q. pubes...

Stag Beetles can sometimes be seen sitting near sap runs on tree trunks, often old oaks, so the idea was to try to mimic the sap and produce it artificially. From the character of the smell, our hypothesis was that we should produce something sweet and under fermentation. We believe that the chemical component in the sap is important so we decided...

Turkey has a large part of the land area covered by forest in comparison with many other countries (nearly 30%) in Europe. However a large part of the forest is heavily used by villagers and is not so productive in the sense of producing timber. But these trees are important because they produce large volumes of fire wood and fodder from coppicing...

The saproxylic beetle fauna on old oaks (Quercus spp) are known to be very rich. This fauna is today threatened all over Europe and in neighbouring countries. The reason is lack of suitable trees from lack of right management or habitat conversion. In this project similar methods have or will be used in Israel, Turkey, Italy, France, UK, Czech Repu...

In Europe and Turkey old oaks (Quercus ppp) and its beetle fauna are very rare and threatened. The reason is lack of suitable trees from lack of right management or habitat conversion. The aim with this study is to compare the diversity and similarity of this fauna in different areas with old oaks in Turkey, but also to compare with similar habitat...

Old oaks (Quercus ppp) and its beetle fauna are very rare and threatened all over Europe and Turkey. The reason is lack of suitable trees from lack of right management or habitat conversion. The aim with the study is to compare the diversity and similarity of this fauna in different areas with old oaks in Turkey, but also study the species richness...

Old oaks (Quercus pp) and its beetle fauna are very rare and threatened all over Europe and Turkey. The reason is lack of suitable trees from unfavourable management or habitat conversion. The aim with the study is to describe the diversity and compare the similarity of this fauna in different areas with old oaks in Turkey. But also study the speci...

Old hollow trees have declined in Europe and many saproxylic (i.e. wood-dwelling) invertebrates living on them are threatened. The aim of this study was to investigate to what extent artificial habitats can be exploited by saproxylic beetles. To mimic the conditions in tree hollows, we constructed wooden boxes filled with different combinations of...

The saproxylic beetle fauna on old oaks was sampled in four regions of southern Sweden using two methods: window and pitfall trapping. The aim was to test a way of finding indicator species which can be used to identify sites with high species number or that scored high on a conservation priority species index, based on occurrence of red-listed spe...

The number of old oaks has decreased during the last century and the saproxylic insects associated with the oak are one of the most endangered organism group all over Europe and Turkey. The beetle fauna on old hollow oaks was studied in Sweden and Turkey with window- and pit-fall traps. The most species rich families in the study were Anobidae and...

The West Palearctic species of Hesperus FAUVEL, 1874 (Coleoptera: Staphylinidae) are treated. Three species, all discovered in southern Turkey, are described as new: Hesperus auricomus, H. gozukarai, H. turcicus. The habitat requirements of the new taxa are described and a key to the West Palearctic species of Hesperus is provided. The male copulat...

The adult external morphology of Catops hanusi Růžička, 1995 is complemented (including the characters of female terminalia), based on newly collected material. The species, known so far only from Bulgaria, is reported for the first time also from southern Turkey. The species is probably closely associated with old tree hollows, it was found in hol...

One of the most endangered assemblages of species in Europe is insectsassociated with old trees. For that reason there is a need of developing methodsto survey this fauna. This study aims at comparing three methods – windowtrapping, pitfall trapping and wood mould sampling – to assess speciesrichness and composition of the saproxylic beetle fauna i...

Abandoned management has caused many sites with free-standing, large oaks (Quercus robur) to become more shaded. This study shows how forest regrowth affects beetle species associated with old oaks in south-eastern Sweden. Beetles were trapped by pitfall traps placed in hollows and window traps placed near hollows in oak trunks in pasture woodlands...

During 1994-98 beetles were caught with window traps and pitfall traps in and arround old hollow broad leaved deciduous trees in the provinces Östergötland, Närke and Västmanland, in Sweden. The most remarkable species were Dimetrota europaea (Likovsky) (Staphylinidae: Aleocharinae) and Aulonothroscus brevicollis (Bonvouloir) (Throscidae), both new...

We review the ecology and distributions of the chafers Liocola marmorata (F.), Gnorimus nobilis (L.) and Gnorimus variabilis (L.) in Sweden based on museum and several large private collections. These species live in hollow deciduous trees, in Sweden especially in oaks. The former and recently documented localities are shown on maps. More than 100...