Zdeňka Martinková
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View article: Using thermal time to predict the timing of flight activity in Noctuidae (Lepidoptera) species: Calculation and verification of forecast methods
Using thermal time to predict the timing of flight activity in Noctuidae (Lepidoptera) species: Calculation and verification of forecast methods Open
View article: Effect of local and exotic origin of Asteraceae seeds on their consumption by ground beetles (Coleoptera: Carabidae)
Effect of local and exotic origin of Asteraceae seeds on their consumption by ground beetles (Coleoptera: Carabidae) Open
View article: Seasonal flight activity and the length of the generation period of selected Noctuidae (Lepidoptera) –extent and causes of variation
Seasonal flight activity and the length of the generation period of selected Noctuidae (Lepidoptera) –extent and causes of variation Open
The variability in the timing of spells of flight activity was monitored in 25 monovoltine and 10 bivoltine species of Noctuidae (Lepidoptera) by evaluating their catches in a light trap operated nightly from April to November 1967–1995. W…
View article: Ecological Implications of Germination Temperature on Native and Invasive <i>Rumex</i> Spp.
Ecological Implications of Germination Temperature on Native and Invasive <i>Rumex</i> Spp. Open
Rumex alpinus L. ( R. alpinus ) is a non‐native invasive plant in Czech mountain regions, altering ecosystem structure and function in protected areas. Rumex obtusifolius L. ( R. obtusifolius ) is a native species and a problematic weed in…
View article: Coccinellidae on native and introduced spruce in central Europe: conservation implications in urban areas
Coccinellidae on native and introduced spruce in central Europe: conservation implications in urban areas Open
The abundance and species composition of adult ladybird communities (Coleoptera: Coccinellidae) were investigated on two congeneric trees, native Norway spruce ( Picea abies ) and the introduced blue spruce ( Picea pungens ), at four locat…
View article: Effect of gap size in grass cover on the percentage and rate of dandelion achene germination
Effect of gap size in grass cover on the percentage and rate of dandelion achene germination Open
In Central Europe, Taraxacum officinale Weber ex Wiggers (dandelion) is an economically important admixture in grasslands. Its spread is supported by its ability to germinate in gaps in grass stands. In a 5‐year experiment, we examined the…
View article: Ladybird (Coleoptera, Coccinellidae) communities on nonnative blue spruce in central Europe
Ladybird (Coleoptera, Coccinellidae) communities on nonnative blue spruce in central Europe Open
Blue spruce ( Picea pungens ) has been planted in urban greenery as an ornamental tree in central Europe for more than 150 years. We investigated whether this nonnative spruce is a convenient habitat for ladybirds (Coleoptera, Coccinellida…
View article: Effect of Male Body Size on Female Reproduction in Pyrrhocoris apterus (L.) (Heteroptera, Pyrrhocoridae)
Effect of Male Body Size on Female Reproduction in Pyrrhocoris apterus (L.) (Heteroptera, Pyrrhocoridae) Open
Females and males of the abundant heteropteran species Pyrrhocoris apterus (L.) mate with the larger of the available partners. The male benefits from copulation with a large female, which is more productive than a small female. However, t…
View article: Factors influencing hibernation in Harmonia axyridis: Role of the environment and interval timer
Factors influencing hibernation in Harmonia axyridis: Role of the environment and interval timer Open
From 2014 to 2022, we investigated the length of hibernation in a population of the invasive ladybird Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) in Central Europe. Adults were collected during the autumn immigration to overwint…
View article: A roadmap for ladybird conservation and recovery
A roadmap for ladybird conservation and recovery Open
Ladybirds (Coleoptera: Coccinellidae) provide services that are critical to food production, and they fulfill an ecological role as a food source for predators. The richness, abundance, and distribution of ladybirds, however, are compromis…
View article: Urbanization Negatively Affects the Species Composition of Native Ladybirds in Central Europe
Urbanization Negatively Affects the Species Composition of Native Ladybirds in Central Europe Open
We evaluated the differences in frequency (percentage of sampling sessions where the species was recorded) and abundance (mean number of individuals per 100 sweeps) of native species of ladybirds (Coleoptera: Coccinellidae) in the center o…
View article: Development of the European Ladybirds Smartphone Application: A Tool for Citizen Science
Development of the European Ladybirds Smartphone Application: A Tool for Citizen Science Open
Wildlife observations submitted by volunteers through citizen science initiatives are increasingly used within research and policy. Ladybirds are popular and charismatic insects, with most species being relatively easy to identify from pho…
View article: Warm Mesoclimate Advances the Seasonal Dynamics of Harmonia axyridis in Urban Habitats
Warm Mesoclimate Advances the Seasonal Dynamics of Harmonia axyridis in Urban Habitats Open
In 2016–2019, seasonal changes in the abundance of the harlequin ladybird Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) were established in the city center of Prague, Central Europe, and in its outskirts. Adults were sampled from …
View article: Gastrophysa viridula (Coleoptera: Chrysomelidae) in the Czech Republic: Decline in a once abundant invasive oligophagous consumer of Rumex
Gastrophysa viridula (Coleoptera: Chrysomelidae) in the Czech Republic: Decline in a once abundant invasive oligophagous consumer of Rumex Open
While the progress of the spread of invasive species of insects in new geographical areas are usually intensively monitored, the decline of these species often escape attention and is poorly documented. In this study, we record the decline…
View article: Which Seed Properties Determine the Preferences of Carabid Beetle Seed Predators?
Which Seed Properties Determine the Preferences of Carabid Beetle Seed Predators? Open
Ground beetles are important invertebrate seed predators in temperate agro-ecosystems. However, there is a lack of information regarding which seed properties are important to carabids when they select seeds for consumption. Therefore, see…
View article: Scots pine forest in Central Europe as a habitat for <i>Harmonia axyridis</i>: temporal and spatial patterns in the population of an alien ladybird
Scots pine forest in Central Europe as a habitat for <i>Harmonia axyridis</i>: temporal and spatial patterns in the population of an alien ladybird Open
Understanding of habitat favourability has wide relevance to the invasion biology of alien species. We studied the seasonal dynamics of the alien ladybird Harmonia axyridis (Coleoptera: Coccinellidae) in monoculture Scots pine forest stand…
View article: The Invasive Box Tree Moth Five Years after Introduction in Slovakia: Damage Risk to Box Trees in Urban Habitats
The Invasive Box Tree Moth Five Years after Introduction in Slovakia: Damage Risk to Box Trees in Urban Habitats Open
The box tree moth Cydalima perspectalis (Walker, 1859) (Lepidoptera: Crambidae) is an invasive species in Europe and a serious pest of box trees (Buxus spp.). In Slovakia, Central Europe, it was first reported in 2012 within the low elevat…
View article: What determines the occurrence of fertilized females in hibernating populations of Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae) in Central Europe?
What determines the occurrence of fertilized females in hibernating populations of Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae) in Central Europe? Open
The current climate warming is associated with the development of a second generation in populations of species such as Pyrrhocoris apterus (L.) (Heteroptera: Pyrrhocoridae), which, in Central Europe, were univoltine in the 1980s. Females …
View article: Persistence and Changes in Morphological Traits of Herbaceous Seeds Due to Burial in Soil
Persistence and Changes in Morphological Traits of Herbaceous Seeds Due to Burial in Soil Open
Seeds in soil banks can survive for many years before conditions become more suitable for germination. Meanwhile, seeds undergo changes in morphology and viability. In this study, we launched an artificial seed bank experiment that include…
View article: Factors determining variation in colour morph frequencies in invasive Harmonia axyridis populations
Factors determining variation in colour morph frequencies in invasive Harmonia axyridis populations Open
View article: Predicting aphid abundance on winter wheat using suction trap catches
Predicting aphid abundance on winter wheat using suction trap catches Open
The relationship between the number of cereal aphids in flight (recorded by a national grid of suction traps in the Czech Republic) and their occurrence on winter wheat (in Prague) was established between 1999-2015. The flight of all the s…
View article: Mating activity of Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae) in nature
Mating activity of Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae) in nature Open
The mating behaviour of Pyrrhocoris apterus in the laboratory is well studied, but little is known about it under natural conditions. In natural populations in Central Europe, overwintered adults start copulating in March and continue unti…
View article: Burial-induced changes in the seed preferences of carabid beetles (Coleoptera: Carabidae)
Burial-induced changes in the seed preferences of carabid beetles (Coleoptera: Carabidae) Open
Seeds of many species of plants may survive for a long time in the soil and germinate when brought to the surface, but whether they are subsequently eaten by seed predators is unknown. We examined the preferences of three species of carabi…
View article: Ground beetles (Coleoptera: Carabidae) as predators of conifer seeds
Ground beetles (Coleoptera: Carabidae) as predators of conifer seeds Open
Many species of ground beetles (Coleoptera: Carabidae) are important predators of seeds. While the consumption of herb seeds has been intensively studied, little attention has been paid to the consumption of seeds of gymnosperm plants. Her…
View article: Factors determining local and seasonal variation in abundance of Harmonia axyridis (Coleoptera: Coccinellidae) in Central Europe
Factors determining local and seasonal variation in abundance of Harmonia axyridis (Coleoptera: Coccinellidae) in Central Europe Open
To determine the causes of the variation in the seasonal dynamics of Harmonia axyridis (Pallas) in Central Europe, numbers of adults and larvae of this invasive species were recorded on trees (Acer, Betula, Tilia) throughout the growing se…
View article: Preferences of carabid beetles (Coleoptera: Carabidae) for herbaceous seeds
Preferences of carabid beetles (Coleoptera: Carabidae) for herbaceous seeds Open
Preferences of seed predators may be an important factor that introduces bias in the results of seed predation studies.In this paper, we report on the experimentally established preferences of carabid beetles for seeds of herbaceous plants…
View article: Effect of aphid abundance and urbanization on the abundance of Harmonia axyridis (Coleoptera: Coccinellidae)
Effect of aphid abundance and urbanization on the abundance of Harmonia axyridis (Coleoptera: Coccinellidae) Open
The factors that affect the local distribution of the invasive Harmonia axyridis are not yet completely resolved. Hypotheses predicting positive and independent effects of prey abundance and degree of urbanization on the adult abundance of…
View article: Overwintering of ladybirds (Coleoptera: Coccinellidae) on Scots pine in Central Europe
Overwintering of ladybirds (Coleoptera: Coccinellidae) on Scots pine in Central Europe Open
We surveyed ladybirds (Coleoptera: Coccinellidae) in 10 stands of Scots pine (Pinus sylvestris), all monoculture stands 5-100 years old, in western Slovakia, Central Europe, over two successive periods, October 2013 - March 2014 and Octobe…
View article: Differences in the Phenology of<i>Harmonia axyridis</i>(Coleoptera: Coccinellidae) and Native Coccinellids in Central Europe
Differences in the Phenology of<i>Harmonia axyridis</i>(Coleoptera: Coccinellidae) and Native Coccinellids in Central Europe Open
Harmonia axyridis (Pallas), an invasive non-native species in central Europe, can outcompete other aphidophagous species. The distribution and abundance of H. axyridis vary depending on different host plants, and its effects on native cocc…
View article: Aphids (Homoptera: Aphididae) on Winter Wheat: Predicting Maximum Abundance of Metopolophium dirhodum
Aphids (Homoptera: Aphididae) on Winter Wheat: Predicting Maximum Abundance of Metopolophium dirhodum Open
In Central Europe, the most abundant aphid infesting the leaves of small grain cereals is Metopolophium dirhodum (Walker) (Homoptera: Aphididae). Annual variation in its seasonal dynamics was evaluated using a 25-yr series of standardized …