A5064956782- Freshwater macroinvertebrate diversity and ecology
- Ecology and Vegetation Dynamics Studies
- Species Distribution and Climate Change
- Fish Ecology and Management Studies
- Forest Ecology and Biodiversity Studies
- Wildlife Ecology and Conservation
- Plant and animal studies
- Insect-Plant Interactions and Control
- Aquatic Invertebrate Ecology and Behavior
- Hydrology and Sediment Transport Processes
- Insect and Pesticide Research
- Marine Biology and Ecology Research
- Marine and coastal plant biology
- Wildlife-Road Interactions and Conservation
- Forest Insect Ecology and Management
- Animal Behavior and Reproduction
- Soil erosion and sediment transport
- Genetic diversity and population structure
- Isotope Analysis in Ecology
- Diptera species taxonomy and behavior
- Computational Physics and Python Applications
- Amphibian and Reptile Biology
- Botany and Plant Ecology Studies
- Ecology and biodiversity studies
- Animal Ecology and Behavior Studies
Czech University of Life Sciences Prague
2014-2024
As a group of freshwater invertebrates, dragonflies (Odonata) are commonly used as ecological indicators ecosystems. Despite earlier studies suggesting that adult odonates may be good for complex changes in landscape, the utility suitable to indicate health non-aquatic (forest) habitats remains poorly understood. This study analyses dragonfly assemblage pattern against spatial and temporal disturbance characteristics Indonesia's Sungai Wain Protection Forest. The core this reserve comprises...
Dragonflies are good indicators of environmental health and biodiversity. Most studies addressing dragonfly ecology have focused on the importance aquatic habitats, while value surrounding terrestrial habitats has often been overlooked. However, species associated with temporary must persist in environments for long periods. Little is known about habitat patches dragonflies, or other factors that initiate influence dispersal behaviour. The aim this study was to reveal relationship between...
Abstract Insects are reportedly experiencing widespread declines, but we generally have sparse data on their abundance. Correcting this shortfall will take more effort than professional entomologists alone can manage. Volunteer nature enthusiasts greatly help to monitor the abundance of dragonflies and damselflies (Odonata), iconic freshwater sentinels one few nonpollinator insect groups appreciated by public amenable citizen science. Although counting individual odonates is common in some...
Habitat specificity is the most important factor affecting regional distribution of dragonflies. Nevertheless, species with highest are not always scarcest. Several determinants dragonfly density-distribution relationships were identified. Altitude preference and altitude range significantly associated distribution. Some that habitat specialists but occur over a wide altitudes should be classified as rare endangered. This very simple principle based on assumption have limited number suitable...
The still-growing effect of human activities on aquatic habitats has led to proportionately increasing need for restoration activities. Paradoxically, actions can constitute a major threat freshwater assemblages if they do not respect the specific nature target biotopes. We investigated dynamics dragonfly in 20 mine-subsidence pools (habitats with very high and unpredictable dynamics). used multivariate methods diversity indices compare species richness composition before after reclamation...
Understanding the impact of changing proportion land-use patterns on species diversity is a critical issue in conservation biology, and odonates are good bioindicators these environmental changes. Some freshwater ecosystems that have been modified due to human activities can serve as important secondary habitats for odonate assemblages; however, majority studies addressing value industrial urban areas adult dragonfly limited local scale, such gamma still unclear. The aim this study was...
the occurrence of adults focus on immediate surroundings their aquatic habitats (e.g.Raab et al., 1996;Ward & Mill, 2005).Due to destruction its habitat, Sympetrum depressiusculum (Selys) has declined sharply in abundance past century and, contrast many other European species, this decline is still continuing (Kalkman Assessment quality terrestrial habitat threatened dragonfl y, (Odonata: Libellulidae)
Abstract Small streams and rivulets in agricultural landscapes are among the most threatened habitats throughout Europe. Many species occurring primarily within these listed EC Habitats Species Directive. One example is damselfly Coenagrion ornatum , which was rediscovered during last decade Elbe Valley (Czech Republic) after more than 40 years. The occurrence of this species, however, observed only at highly altered sites. Several management attempts, unfortunately, had led to local...
Climate change and an ever-increasing effect of humans on the majority ecosystems affect not only individual organisms, but also ecological links between them.The subject study for many disciplines, therefore, is no longer diversity "functional diversity" (Levine, 2015).The term "traits" used to describe basic features organisms from a functional point view (Shipley, 2010).In using "trait", we refer which provide understanding interactions them their environment 2010).Lack information about...
Abstract Odonata, like most freshwater invertebrates, tend to overwinter in water due the thermal properties of a environment. Winter damselflies (genus Sympecma ), however, hibernate as adults terrestrial habitats. The strategy adult overwintering combined with high mortality is associated several unique adaptations semiarid conditions, but winter maintain this life history throughout almost entire Palaearctic. We assume that temperate zones indirectly maintained by niche separation time....
Parasitoidism is one of the main causes insect egg mortality. Parasitoids are often able to detect eggs using semiochemicals released from and disturbed plants. In response, female insects adopt a wide variety oviposition strategies reduce detectability subsequent We evaluated proportion parasitized undeveloped three common damselfly species family Lestidae, most diverse group European damselflies, in terms strategies, notably clutch patterning ability utilize substrates with different...
Abstract Habitat selectivity has become an increasingly acknowledged mechanism shaping the structure of freshwater communities; however, most studies have focused on effect predators and competitors, neglecting habitat complexity specialization. In this study, we examined selection semiaquatic (amphibians: Bufonidae; odonates: Libellulidae) aquatic organisms (true bugs: Notonectidae; diving beetles: Dytiscidae). From each family, selected one generalist species able to coexist with fish (...
The selection of oviposition sites by insects can significantly affect egg mortality.Spreadwing damselflies (Odonata: Lestidae) predominantly lay their eggs in parts plants growing above the surface water and only occasionally also those underwater.Factors affecting choice site decision to underwater are still poorly understood.We examined whether localities with different risk parasitism, strategies (above or below surface) depth at which were laid, affected total number proportion...
Abstract Although it is well recognized that insects' habitat use and requirements may change during the season, very little attention has been devoted to diel changes in most insects. In this study, we compared utilization patterns of Sympetrum depressiusculum (Selys, 1841) adult dragonflies between daytime activities nocturnal roosting. During daytime, captured marked individuals with fluorescent paint different habitats. At night, searched, using UV light, for remained on We found...
Infrastructure is one of the main causes landscape fragmentation, which results in isolation and loss populations.Although negative effect roads on insects well documented, only a minority studies has focused context barriers to dispersal.Flying species particular have been neglected.We investigated four-lane motorway as barrier movement an isolated population threatened dragonfl y Sympetrum depressiusculum agricultural Central Europe.Generalized additive models were used assess motorway's...