Ondrej Kosulic

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• Ph.D.
• Professor (Assistant) at Mendel University in Brno

Traditional woodland management created a mosaic of differently aged patches providing favorable conditions for a variety of arthropods. After abandonment of historical ownership patterns and traditional management and the deliberate transformation to high forest after World War II, large forest areas became darker and more homogeneous. This had si...

Although temperature significantly influences pesticides' impact on ectotherms, the joint effect of temperature and pesticides on natural enemies is understudied. In laboratory conditions, we investigated the influence of two commonly used insecticides, spinosad and k-cy-halothrin, on mortality and functional response of a community of Philodromus...

Phylogenetic niche conservatism can cause strong interspecific competition among closely related species leading to competitive exclusion from local communities or meta-communities. However, the coexistence of close relatives is often reported. One of the most frequent mechanisms mediating such coexistence is resource partitioning. Here, we investi...

Two new species of paculline spiders are described on the basis of males and females: Perania annam sp. nov. from southern Vietnam and Lamania bokor sp. nov. from southern Cambodia. Both of them occur distinctly outside the previously known geographical range of each respective genus. The relationships of these species are discussed and morphologi...

Abandonment of traditional management is among the major causes of the loss of temperate forest biodiversity. While numerous studies highlight the positive impact of restoring traditional forest management on biodiversity, there is a notable gap in research focusing on the ecological mechanisms underlying the benefits to taxonomic, functional, and...

Pesticides constitute a major threat to biodiversity, but our understanding of the complex interactions between local and landscape factors influencing their distribution in agroecosystems remains limited. We conducted a pioneering study where we screened spiders, rodents, plants and soils for multiple pesticide residues in perennial crops (orchard...

Anthropogenic habitat modification is a major contributor to global change. While the modification of natural habitats to agroecosystems attracts most of the attention, little is known about the conversion of one natural ecosystem to another. Dry dipterocarp forest is the key dry forest type across Southeast Asia. Moderate fire disturbance is essen...

Floodplain forests are among the most endangered ecosystems worldwide, even though they are hotspots for numerous taxa. The abandonment of traditional management and large‐scale timber extraction, such as clear‐cutting, has led to a decline in floodplain forest biodiversity. Retention forestry has the potential to facilitate the implementation of a...

Conservation biocontrol, the regulation of crop pests by naturally occurring biocontrol agents (e.g., predators and parasitoids), is predominantly monitored throughout periods of primary crop growth when pests exert the most observable impact on yields. Pest‐focused agricultural biomonitoring often overlooks post‐harvest, winter and even early‐seas...

A new species, Scorpiops (Euscorpiops) krachan sp. nov., belonging to the family Scor-piopidae Kraepelin, 1905 is described based on three adult males and one adult female collected in the Kaeng Krachan National Park, Phetchaburi Province, Thailand. The new species presents most features exhibited by scorpions of the subgenus Euscorpiops and can be...

Pesticides threaten biodiversity, but we know little about how they permeate food webs. Few studies have investigated the number, concentration, and composition of pesticides in agroecosystem food webs even though agroecosystems cover one-third of Earth's land area. We conducted a pioneering study on the distribution of pesticides across local (i.e...

1. Conservation biocontrol, the regulation of crop pests by naturally-occurring biocontrol agents (e.g., predators and parasitoids), is predominantly monitored throughout periods of primary crop growth when pests exert the most observable impact on yields. Pest-focused agricultural biomonitoring often overlooks post-harvest, winter and even early-s...

Dry dipterocarp forest is a key dry forest type across South-East Asia. Despite these dipterocarps being endangered and widely unprotected, the factors that may affect their function at local and landscape scales are unknown. To identify drivers for future conservation programs at both local (habitat structure) and landscape (land use, climate) sca...

Renewable energy production is gaining momentum globally as a way to combat climate change without drastically reducing human energy consumption. Solar energy offers the fastest developing solution. However, ground-mounted solar panels have a high land requirement, which leads to conflicts with other land use types, particularly agriculture and bio...

A mosaic of patches in various successional stages is key to maintaining high biodiversity in open temperate woodlands. The abandonment of traditional management, such as once widespread coppicing, has caused biodiversity loss and a shift to ecologically homogeneous communities. Invertebrates are one of the taxonomic groups that suffered the most f...

Modern agricultural pest management systems rely on naturally occurring generalist predators to promote pest suppression. Still, little research has been done to assess their overall effectiveness, especially over the winter period when their potential is high. In this study, we focused on three genera of winter-active spiders Clubiona, Philodromus...

Although winter in the temperate zone is considered to be the period of arthropod quiescence, some pests and their natural enemies remain active and interact in simplified food-webs. Limited information exists about the relative importance of top-down and bottom-up processes regulating arthropod food-webs and their spatio-temporal dynamics during w...

Plant pathogens have potential to change the relative importance of bottom-up and top-down regulation in forest ecosystems and may determine whether trophic cascades are present in local food chains. While evidence for such effects from field studies in forest ecosystems remains sparse, this would be valuable for the management of invasive plant pa...

The aim of this study was to investigate the effect of selective logging on species richness, composition, and conservation value of epigeic spider community. We studied an initial stage of abandoned coppice restoration in the Děvín National Nature Reserve (Czech Republic). We sampled experimental plots in forest stands with three canopy thinning i...

Lowland oak forests host high biodiversity throughout Europe, and to maintain their high biodiversity potential we need to understand how current silviculture practices influence these ecosystems. The most common harvest approach in oak woodlands remains clear-cutting followed by site preparation for reforestation. The site preparation can vary in...

According to the disturbance‐succession theory, natural disturbances support biodiversity and are expected to increase the complexity of food‐webs in forest ecosystems by opening canopies and creating a heterogeneous environment. However, a limited number of studies have investigated the impact of disturbance by invasive pathogenic species and succ...

Lowland forests of Central Europe had been managed by diverse traditional practices for millennia. Such management helped to maintain heterogeneous habitat conditions suitable for a wide variety of arthropod species. Modern approaches to conservation, however, with their strategies of nonintervention, unintentionally caused an overall habitat homog...

Immense effort has been devoted to mitigating the negative effect of deforestation, one of the main factors causing global change. However, the effect of reforestation management on food-webs has been rarely studied and no study so far has investigated the effect on predator–prey interactions in forest understories. We studied predator–prey interac...

Seminatural grasslands are among the most valuable habitats for arthropod conservation in Central Europe. The abandonment of traditional farming has caused these areas to become overgrown and homogeneous, thereby resulting in loss of arthropod biodiversity. This traditional farming therefore needs to be complemented by active conservation managemen...

The conversion of forests from complex natural ecosystems to simplified commercial woodlands is one of the major causes of biodiversity loss. To maintain biodiversity, we need to understand how current management practices influence forest ecosystems. We studied the effects of forest successional stage and management intensity on the abundance, spe...

Data on the spider fauna from the forest ecosystems of the Děvín National Nature Reserve (South Moravia, Czech Republic) are presented. The research was carried out on 15 randomly chosen research plots in oak-hornbeam forest stands within different management regimes. Spider sampling was done by pitfall trapping from May to October 2016. Overall, 3...

To understand how different management interventions influence the forest structure and biodiversity, various components of vascular plant communities were studied and compared in differently managed forest stands and clearings. The number of species, the percentage of the overall cover of alien species, different Raunkier’s life forms’, CRS strate...

Prey selection by generalist predators can be highly dynamic depending on the prey community structure. However, the dynamics of prey selection at the stage of prey entrapping are rarely investigated in trap-building predators, probably because their traps have been previously considered to intercept mobile prey proportionally to its availability i...

Differences in spider communities can be found even in small-scale patches within a given habitat (Samu et al. 1999, 2011, Pearce et al. 2004). At a community level, spiders are able to respond quickly and distinctly to short or sudden changes in the environment and some species reliably indicate the state of that environment (Buchar 1983, Samu et...

Details about the record of a juvenile mermithid roundworm parasitizing the bark spider Caerostris sumatrana Strand, 1915 from Thailand are presented. The morphology and ecology of both organisms is discussed. Morphological features suggest this juvenile nematode belongs to the genus cf. Aranimermis. Due to the subadult stage of parasite, identific...

Details about the record of a juvenile mermithid roundworm parasitizing the bark spider Caerostris sumatrana Strand, 1915 from Thailand are presented. The morphology and ecology of both organisms is discussed. Morphological features suggest this juvenile nematode belongs to the genus cf. Aranimermis. Due to the subadult stage of parasite, identific...

The management practices in agroecosystems can alter the community structure of pests' natural enemies, which can consequently disturb their biocontrol function. Here, we investigated how organic or conventional farming influence the community structure of arthropod predators (spiders, coccinelids, anthocorids, ants) in orchards. The three conventi...

Behavioral predictability, i.e. short-term intra-individual variability under relatively constant environmental conditions, has only recently begun to gain attention. It is unknown, however, whether predictability of individuals with distinct mean behavior changes differently as a response to ecological factors such as resource availability. Moreov...

Key message Liming, an ameliorative method for acidified forest soils, affected the relative abundance of prey of ground-hunting spiders and consequently reduced densities of functionally similar species of these predators. Context Liming, an ameliorative method for acidified forest soils, may modify the structure of an arthropod community by alte...

Traditional woodland management created a dynamic mosaic of differently aged patches providing favorable conditions for a variety of arthropods. After the abandonment of historical ownership patterns providing traditional management and deliberate transformation to high forest after the World War II, large areas of forest became darker and more hom...

Among the genera of the family Scorpiopidae Kraepelin, 1905 Alloscorpiops remains yet rather discrete. New species were added to this genus only recently, increasing its number from two to six. Therefore, species of Alloscorpiops can be considered rare and uncommonly collected. One particular new species, Alloscorpiops viktoriae sp. n., is describe...

Even as new substances show promise as biopesticides for controlling pests due to their natural properties and high effectiveness in inhibiting pests, their side effects on non-target organisms must nevertheless be evaluated before they can be included into integrated pest management systems. In this study, a crude extract from dried leaves of Embe...

Spiders (Araneae) are a classic indicator taxon for evaluating the health of natural environments. Here, spiders from the forest ecosystems in Špraněk National Nature Reserve (Olomoucký Region) were investigated. A total of 1195 specimens were collected by pitfall traps, individual collection, sweeping herb vegetation, beating shrubs and trees, and...

This proceedings contains papers dealing with issues affecting biological control, particularly pertaining to the use of parasitoids and predators as biological control agents. This includes all approaches to biological control: conservation, augmentation, and importation of natural enemy species for the control of arthropod targets, as well as oth...

This proceedings contains papers dealing with issues affecting biological control, particularly pertaining to the use of parasitoids and predators as biological control agents. This includes all approaches to biological control: conservation, augmentation, and importation of natural enemy species for the control of arthropod targets, as well as oth...

This paper presents spider faunistics from abandoned coppice oak forest stands located along the South Moravia region. Spiders were collected from May to July 2012 by pitfall trapping at eight different localities. We collected 1945 adult spiders representing 20 families, 53 genera, and 90 species. More than one-third of all the species are known t...

Coppice abandonment had negative consequences for the biodiversity of forest vegetation and several groups of invertebrates. Most coppicing restoration studies have focused only on a single trophic level despite the fact that ecosystems are characterized by interactions between trophic levels represented by various groups of organisms. To address t...

Behavioral syndromes, seen as correlations among two or more functionally different behaviors, are well documented in many different animal taxa. They may not be present automatically, however, and their consistency within populations and individuals also varies among studies. Here, we studied a behavioral syndrome comprising foraging aggressivenes...

Faunistic records of spiders in dry dipterocarp forests of Thailand are presented. Spiders were surveyed from November 2008 to December 2012. A total of 1,926 spider individuals were collected from 16 locations by visually searching, sweeping grasses and herb vegetation, beating shrubs and trees, and shifting leaf litters. Spiders were identified t...

A new species of the genus Heterometrus is described on the basis of a specimen recently collected in Thailand. Heterometrus minotaurus sp. nov. is morphologically closest to H. longimanus. The newly described species is well distinguished by its smaller overall size (83 mm) and shorter and less narrow metasoma with specific dorsolateral carinae on...

Total abundances and species density with values of canopy openness in studied plots (%). (XLS)

Complete list of recorded spider species with abundances, functional traits, conservation status, and degree of rareness according to relevant literature. (XLS)

KOŠULIČ ONDŘEJ. 2015. Spiders (Arachnida: Araneae) from Forest Ecosystems of Třesín National Nature Monument (Litovelské Pomoraví, Czech Republic) with Suggestions to Conservation Management of the Locality. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 63(3): 751–767. This paper presents faunistic records of spiders in th...

KOŠULIČ ONDŘEJ, VICHITBANDHA PATCHANEE. 2015. Representatives of Spider Families (Arachnida: Araneae) in Experimental Plots of Physic Nut Plantations (Jatropha curcas L.) in Kampaeng Saen Campus of Kasetsart University, Thailand. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 63(2): 425–431. This paper makes a faunistic con...

Euscorpiops artemisae sp. nov. from Myanmar and Euscorpiops orioni sp. nov. from Thailand are described and compared with other species of the genus Euscorpiops Vachon, 1980. A key to the species of Euscorpiops is provided. Sexual dimorphism is present, as males of some species have a narrower pedipalp chela than females, while in other species the...

KOŠULIČ ONDŘEJ. 2014. Araneofauna of the Křéby National Nature Monument (Eastern Moravia, Czech Republic) with some notes to conservation management of the locality. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 62(5): 991–1005. This paper makes a faunistic contribution to knowledge of spider composition in the xerothermic...

Records of spiders of the vineyard terraces from the vicinity of the villages Morkůvky and Mutěnice Jesličky (South Moravia, Czech Republic) are published in the presented work. Spiders were collected by pitfall traping during 30 April – 28 October 2011 and by day and night sweeping of herb vegetation in diff erent dates of 2011. In total 2719 indi...

KOŠULIČ ONDŘEJ, HULA VLADIMÍR: Rare and remarkable spiders (Araneae) from vineyard terraces in Pálava region (South Moravia, Czech Republic). Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2013, LXI, No. 3, pp. 663–676 Faunistic data of rare and remarkable spider species found in vineyard terraces around Mikulov and Popice...

KOŠULIČ ONDŘEJ, NOVÁKOVÁ LUCIE, ŠŤASTNÁ PAVLA: Epigeic spiders (Araneae) from the Malá Dohoda Quarry (Moravian Karst Protected Landscape Area, Czech Republic). Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2013, LXI, No. 3, pp. 651–662 This publication makes a faunistic contribution to knowledge of the epigeic spider speci...

Alloscorpiops wongpromi sp. n. from Thailand and Laos is described and compared with all other species of the genus Alloscorpiops Vachon, 1980. A key is presented to all species of the genus. A. wongpromi sp. n. is characterized mainly by a higher number of trichobothria on the patella, which has 33–37 external and 21–22 ventral trichobothria, and...

Faunistic records of spiders (Araneae) in the Nature Monument Jesličky (South Moravia, Czech Republic) are presented. Spiders were collected by pitfall trapping in 2009 and by sweeping of the herb vegetation in 2011. During the both periods a total of 847 specimens were collected, from which 617 adult spiders were determined. We found 88 species be...

In this study, we present faunistic data about spiders in selected sinkholes of northern part of Moravský kras Protected Landscape Area. Time of collection was established in the following terms: 24 March 2010 – 22 September 2010. We collected altogether 5742 adult specimens which were determined to 59 species of 14 families. We found two very rare...

KOŠULIČ O. & HULA V. 2011: The wolf spiders (Araneae, Lycosidae) of the eastern part of the Hustopeče bioregion. Acta Musei Moraviae, Scientiae Biologicae (Brno) 96(1): 29–40. – This publication makes a contribution to knowledge of the species composition of wolf spiders in the eastern Hustopeče region. The spiders were collected by means of pitfal...

In 2009, the arachnofauna of Louky pod Kumstátem Nature Reserve was studied. Spiders were collected between 18.iv.2009 and 25.x.2009 using pitfall traps. Land snail shells were collected in the winter of 2009–2010 to find hibernating spiders. In total 675 individuals (550 adult spiders) were collected, and identified as 69 species of 17 families. S...

In 2009, the arachnofauna of Louky pod Kumstátem Nature Reserve was studied. Spiders were collected between 18.iv.2009 and 25.x.2009 using pitfall traps. Land snail shells were collected in the winter of 2009–2010 to find hibernating spiders. In total 675 individuals (550 adult spiders) were collected, and identified as 69 species of 17 families. S...

Overwintering of spiders in land-snail shells in South Moravia (Czech Republic). Acta Musei Moraviae, Scientiae biologicae (Brno) 94: 1–12. – That spiders overwinter in land-snail shells is known, but the phenomenon has only rarely been studied. Anumber of published works from middle Europe address it, but none from the Czech Republic. The aim of t...