Piotr Kiełtyk

Piotr Kiełtyk
Cardinal Stefan Wyszynski University in Warsaw · Faculty of Biology and Environmental Sciences

PhD

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15
Publications
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224
Citations

Publications

Publications (15)
Article
Full-text available
Plant species that inhabit large elevation gradients in mountain regions are exposed to different environmental conditions. These different conditions may influence plant morphology via plastic responses and/or via genetic adaptation to the local environment. In this study, morphological variation was examined for Bellidiastrum michelii Cass. (Aste...
Article
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This study examined the morphological variation in Senecio subalpinus W.D.J. Koch. (Asteraceae) along a 950-m elevation gradient in the Tatra Mountains, Central Europe, with emphasis on floral allocation patterns. Fifteen morphological traits were measured in 200 plants collected in the field from 20 sites then the findings were modelled by elevati...
Article
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The article refers to a broader context of scientific debates on the effect of climate warming on shifts in species ranges and describes the recent changes in the distribution and life strategy of Hedera helix close to its eastern limit, in light of climate changes. European ivy is an ecotone species, occurring in fringe communities, in deciduous a...
Article
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The impact of exotic annual Impatiens glandulifera on invaded European vegetation is ambiguous; there are studies reporting considerable negative as well as weak or even no impact of this invader on species richness and diversity of the invaded communities. The effect of invasion by I. glandulifera on species richness, diversity and the composition...
Article
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Alpine dock (Rumex alpinus) is a native plant species in many European mountain ranges. It comes from moist brushwood and open tall herb communities, though it has invaded mountain pastures. This troublesome weed forms permanent monodominant stands characterised by low nature conservation and agricultural values. However, to the best of our knowled...
Article
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Abstract. Dinocampus coccinellae is a parasitoid wasp usually parasitizing ladybird beetles of the tribe Coccinellini. A fi eld survey conducted between March and November 2016 revealed three hosts of this parasitoid in the Srinagar district of the Indian state of Jammu and Kashmir: two members of the Coccinellini (Oenopia conglobata and Coccinella...
Article
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Alpine plants growing along wide elevational gradients experience very different abiotic and biotic conditions across elevations. As a result of genetic differentiation and/or plastic response, conspecific plants growing in high elevations, as compared to low elevations, generally have shorter stems and lower number of flowers, but larger flower si...
Article
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Solidago minuta L., a high-mountain species of the Solidago virgaurea group, occurs on some European mountain chains but it has been suggested that morphological differentiation of S. minuta is controversial due to the existence a wide range of morphologically intermediate plants between lowland S. virgaurea s.s. and high-mountain S. minuta. Howeve...
Article
Summary: Introduction: The aim of the present longitudinal study was to compare short-term growth in height, the circumference of the head, chest, and hips, biacromial width, as well as bi-iliac breadth in one infant, two preschool children, and seven adolescent girls. Methods: The studied characteristics were measured four times a week. Stature wa...
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Bunias orientalis is an alien species that has spread greatly in recent decades in Central Europe. This coloniser is particularly well (pre)adapted to anthropogenic disturbances and human-mediated dispersal, allowing it to spread mainly along roads and railways. Here, its distribution and population structure is investigated for the sub-montane reg...
Chapter
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W pracy przedstawiono wybrane metody numeryczne obiektywizujące interpretację wyników w syntetycznej fazie badań paleobotanicznych. Modelowym obiektem badań jest torfowisko wysokie „Linje”, zlokalizowane w geograficznym mezoregionie Pojezierza Chełmińskiego. W roku 2005 na mszarze wykonano badania stratygraficzne i paleobotaniczne. Dokładnie rozpoz...
Article
Full-text available
The morphological differentiation and taxonomic treatment of lowland and high-mountain morphotypes within the Solidago virgaurea group are controversial. To clarify the taxonomic status of these taxa, we conducted a morphometric analysis of 1,746 individuals from 80 localities along an altitudinal gradient from the lowlands of northern Poland to th...
Article
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The wild population of fallow deer in Central Europe has grown considerably over the last decade. However, information on feeding habits of this alien species in relation to the indigenous red deer or roe deer, in areas of their co-occurrence, is scarce. A prevailing view maintains that their food-niches are distinct, although direct comparative st...
Article
Full-text available
The aim of the work has been to establish whether foxes and badgers may, through their utilisation of dens and setts respectively, bring about changes in natural forest phytocoenoses; and – if it was proved – to determine the nature of the changes and the degree to which they are dependent on the mammal species involved and the forest community in...

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