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1.

001-es BibID:BIBFORM082704
035-os BibID:(cikkazonosító)125461
Első szerző:Bódis Judit
Cím:Biological flora of Central Europe Himantoglossum adriaticum H. Baumann / Judit Bódis, Éva Biró, Timea Nagy, Attila Takács, Gábor Sramkó, Richard M. Bateman, Lilla Gilián, Zoltán Illyés, Jácint Tökölyi, Balázs András Lukács, Miklós Csábi, V. Attila Molnár
Dátum:2019
ISSN:1433-8319
Megjegyzések:Himantoglossum adriaticum H. Baumann is a long-lived perennial orchid with an adriato-mediterranean distribution. The species-level separation of this species from the more geographically widespread H. hircinum has only recently been confirmed via a combination of molecular and morphometric techniques, which are further developed here. To provide a comprehensive overview of its autecology we integrated previously published information with extensive unpublished data derived mainly from populations in the Keszthely Hills of Hungary. In this paper we assess the distribution, habitat preferences, life history and seed germination (ex situ and in situ) of H. adriaticum, with special emphasis on its reproductive biology.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Orchidaceae
Dormancy
Genetic and morphological variation
Life cycle
Pollination
Reproductive biology
Megjelenés:Perspectives In Plant Ecology Evolution And Systematics. - 40 (2019), p. 1-17. -
További szerzők:Biró Éva Nagy Timea Takács Attila (1989-) (biológus, botanikus) Sramkó Gábor (1981-) (biológus) Bateman, Richard M. Gilián Lilla Illyés Zoltán (1980-) (biológus) Tökölyi Jácint (1984-) (biológus) Lukács Balázs András (1979-) (ökológus) Csábi Miklós Molnár V. Attila (1969-) (biológus, botanikus)
Pályázati támogatás:OTKA K108992
OTKA
OTKA PD109686
EFOP-3.6.3-VEKOP-16-2017-00008
EFOP
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2.

001-es BibID:BIBFORM079634
Első szerző:Deák Balázs (biológus)
Cím:The effects of micro-habitats and grazing intensity on the vegetation of burial mounds in the Kazakh steppes / Deák Balázs, Tölgyesi Csaba, Kelemen András, Bátori Zoltán, Gallé Róbert, Tatyana M. Bragina, Abil I. Yerkin, Valkó Orsolya
Dátum:2017
ISSN:1755-0874 1755-1668
Megjegyzések:Background: Burial mounds (kurgans) of Eurasian steppes are man-made habitat islands that have the potential to harbour rich plant diversity due to micro-habitats associated with their topography. Aims: We assessed whether kurgan micro-habitats harboured different species pools and functional groups from those found on the surrounding steppes. In addition, we asked if these mounds were affected by different grazing intensities from those on the surrounding vegetation. Methods: We surveyed kurgan micro-habitats (northern and southern slopes, surrounding ditch) and adjacent steppe plains in non-grazed, moderately grazed and heavily grazed sites in northern Kazakhstan. We analysed differences in species composition of four habitats under three grazing regimes using Generalised Linear Mixed Models, PCA ordination and indicator species analysis. Results: Kurgan micro-habitats had diverse vegetation and supported the co-existence of plant species with different environmental needs. We identified 16 steppe specialists confined to kurgan micro-habitats. Steppe vegetation was welladapted to extensive grazing, although heavy grazing supported ruderals and a decline in steppe specialists. There was a significant interaction between grazing intensity and habitat type: heavy grazing supported ruderals and suppressed steppe specialists especially on the slopes. Conclusions: We highlighted that kurgans play an important role as maintaining high plant diversity locally in extensive steppe plains in Central-Asia by increasing environmental heterogeneity and supporting specialist species confined to these micro-habitats.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
degradation
kurgan
livestock
microsite
plant diversity
slope
Megjelenés:Plant Ecology & Diversity. - 10 : 5-6 (2017), p. 509-520. -
További szerzők:Tölgyesi Csaba (1984-) (ökológus) Kelemen András (1986-) (biológus-ökológus) Bátori Zoltán Gallé Róbert Bragina, Tatyana M. Yerkin, Abil I. Valkó Orsolya (1985-) (biológus)
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3.

001-es BibID:BIBFORM016174
Első szerző:Lengyel Szabolcs (biológus)
Cím:Convergent evolution of seed dispersal by ants, and phylogeny and biogeography in flowering plants : a global survey / Szabolcs Lengyel, Aaron D. Govec, Andrew M. Latimerd, Jonathan D. Majerc, Robert R. Dunn
Dátum:2010
Megjegyzések:Seed dispersal is a fundamental life history trait in plants. Although the recent surge of interest in seed dispersal by ants (myrmecochory) has added greatly to knowledge on the ecology of seed dispersal and ant-plant mutualisms, myrmecochory also represents a unique opportunity to examine the links between seed dispersal and evolution in flowering plants. Here we review the taxonomic, phylogenetic and biogeographic distribution of myrmecochory in flowering plants. Myrmecochory is mediated by elaiosomes, i.e., lipid-rich seed appendages that attract ants and serve as rewards for dispersal. We surveyed the literature for evidence of elaiosomes in angiosperm plants to estimate the global prevalence of myrmecochory. We then searched the literature for phylogenetic reconstructions to identify myrmecochorous lineages and to estimate the minimum number of independent evolutionary origins of myrmecochory. We found that myrmecochory is present in at least 11 000 species or 4.5% of all species, in 334 genera or 2.5% of all genera and in 77 families or 17% of all families of angiosperm plants. We identified at least 101, but possibly up to 147, independent origins of myrmecochory. We estimated three or more origins in 13 families and found that at least half the genera are myrmecochorous in 10 families. Most myrmecochorous lineages were Australian, South African or northern temperate (Holarctic). A mapping of families containing myrmecochorous genera on a dated angiosperm supertree showed that myrmecochory has evolved in most of the major angiosperm lineages and that it is more frequent in younger families (crown group age <80 million years) than in older ones. We suggest that the relatively low physiological and energetic costs of producing an elaiosome and the consistent selective benefits of myrmecochory (dispersal, protection from seed predators and fire, safe and nutrient-rich microsites) explain the numerous evolutionary and developmental origins of myrmecochory in angiosperm plants, and we propose that elaiosomes thus provide one of the most dramatic examples of convergent evolution in biology.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
Angiosperm diversification
Elaiosome
Mutualism
Plant-animal interactions
Plant diversity
Plant fitness
Megjelenés:Perspectivesin Plant Ecology, Evolutionand Systematics 12 : 1 (2010), p. 43-55. -
További szerzők:Gove, Aaron D. Latimer, Andrew M. Majer, Jonathan D. Dunn, Robert R.
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4.

001-es BibID:BIBFORM083247
Első szerző:Miglécz Tamás (biológus ökológus)
Cím:Effects of litter on seedling establishment : an indoor experiment with short-lived Brassicaceae species / Tamás Miglécz, Béla Tóthmérész, Orsolya Valkó, András Kelemen, Péter Török
Dátum:2012
ISSN:1385-0237
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Plant Ecology. - 214 : 2 (2012), p. 189-193. -
További szerzők:Tóthmérész Béla (1960-) (ökológus) Valkó Orsolya (1985-) (biológus) Kelemen András (1986-) (biológus-ökológus) Török Péter (1979-) (biológus-ökológus)
Pályázati támogatás:TÁMOP 4.2.1./B-09/1/KONV-2010-0007
TÁMOP
TÁMOP-4.2.2/B-10/1-2010-0024
TÁMOP
OTKA PD 100192
OTKA
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5.

001-es BibID:BIBFORM083221
Első szerző:Ruprecht Eszter
Cím:Shape determines fire tolerance of seeds in temperate grasslands that are not prone to fire / Eszter Ruprecht, Annamária Fenesi, Enikő I. Fodor, Thomas Kuhn, Jácint Tökölyi
Dátum:2015
ISSN:1433-8319
Megjegyzések:Prescribed burning is an important tool for nature conservation in many parts of the world. It is now also being increasingly proposed as an alternative to traditional management in temperate grasslands that are not naturally fire-prone. For effective biodiversity conservation, accurate knowledge about species responses to fire is indispensable. Plant diaspores are key elements in the long-term persistence of populations, but surprisingly, even in fire-prone ecosystems, little is known about traits that may influence seed responses to fire. In a comparative study, we assessed germination responses of 37 temperate European herbaceous species to experimental fires simulating grassland fires with moderate fuel loads and related these responses to the thickness, complexity and strength of the seed coat, diaspore type (seed vs. one-seeded fruit), size, shape, and heat tolerance, while accounting for the influence of phylogenetic relatedness. Seed traits like diaspore type, shape and heat tolerance were significantly related to seed responses to fire when considered in isolation. However, in multivariate models shape was the only factor explaining fire tolerance of seeds. More rounded seeds showed a higher fire tolerance. This can be explained by their smaller surface-to-volume ratio and/or because they are better protected by surrounding soil particles and hence tolerate fire more than elongated or flattened seeds. Our results show that species of non-fire-prone temperate grasslands display diverse germination responses to fire. The direction and magnitude of this response was best predicted by the shape of diaspores with elongated or flat seeds being most vulnerable to fire.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Burning
Germination
Heat tolerance
Seed anatomy
Seed morphology
Seed size
Megjelenés:Perspectives in Plant Ecology Evolution and Systematics. - 17 : 5 (2015), p. 397-404. -
További szerzők:Fenesi Annamária Fodor Enikő I. Kuhn, Thomas Tökölyi Jácint (1984-) (biológus)
Pályázati támogatás:TÁMOP-4.2.2/C-11/1/KONV-2012-0010
TÁMOP
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6.

001-es BibID:BIBFORM081993
Első szerző:Tóth Katalin Ágnes (biokémikus, molekuláris biológus)
Cím:Endozoochorous seed dispersal potential of grey geese Anser spp. in Hortobágy National Park, Hungary / Tóth Katalin, Bogyó Dávid, Valkó Orsolya
Dátum:2016
ISSN:1385-0237
Megjegyzések:Recent studies found that endozoochorous seed dispersal by waterfowl is an important dispersal strategy for numerous plants. With a germination experiment, we evaluated the endozoochorous dispersal potential of the endangered Lesser White-fronted Goose (LWfG, Anser erythropus) and larger goose species (A. anser and A. albifrons) in their autumn and spring staging areas (Hortoba?gy, East Hungary). We tested the following hypotheses: (1) the amount and species composition of germinable seeds in the droppings of the habitat specialist LWfG and generalist larger goose species have a different species composition, (2) droppings contain less germinable seeds and less species in spring than in autumn, when most species disperse their seeds. We collected droppings of LWfG and larger goose species in their feeding habitats in spring and autumn staging areas. Droppings were concentrated and germinated on trays filled with steam-sterilised soil in a greenhouse. LWfG dispersed more species typical to alkali habitats and lower amounts of weeds compared to larger goose species, which confirmed our first hypothesis. We recorded higher total species numbers and species number of annuals, wetland species and weeds in autumn, which supported our second hypothesis. We found that the studied goose species used a wide range of feeding habitats; thus, they can play an important role in dispersing seeds between a range of habitats which they use for feeding. Based on the seed content of the droppings, LWfG is confined to natural habitats; thus, for the effective protection of this vulnerable species, it is crucial to preserve natural feeding habitats in their staging areas.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Alkali landscape
Animal-mediated plant dispersal
Anser erythropus
Germination
Vulnerable species
Wetland
Megjelenés:Plant Ecology. - 217 : 8 (2016), p. 1015-1024. -
További szerzők:Bogyó Dávid (1980-) (biológus-ökológus) Valkó Orsolya (1985-) (biológus)
Pályázati támogatás:PD 111807
OTKA
K 116639
OTKA
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