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001-es BibID:	BIBFORM117119
035-os BibID:	(Scopus)85174173026 (cikkazonosító)167675
Első szerző:	Lukács Katalin (biológus)
Cím:	The ecological footprint of outdoor activities: Factors affecting human-vectored seed dispersal on clothing / Katalin Lukács,Ágnes Tóth, Réka Kiss, Balázs Deák, Zoltán Rádai,Katalin Tóth, András Kelemen, Zoltán Bátori, Alida Anna Hábenczyus,Csaba Tölgyesi,Tamás Miglécz, Laura Godó, Orsolya Valkó
Dátum:	2024
ISSN:	0048-9697
Megjegyzések:	In the Anthropocene, humans are among the most abundant long-distance seed dispersal vectors globally, due to our increasing mobility and the growing global population. However, there are several knowledge gaps related to the process of human-vectored dispersal (HVD) on clothing. In a multi-site field experiment covering various habitat types in three countries of Central-Europe, we involved 88 volunteer participants and collected 251 HVD samples and 2008 subsamples from their socks and shoes. We analysed the number of diaspores and species in the samples. Specifically, we studied the effects of site characteristics (variables related to habitat types and season), vector characteristics (activity type, gender, clothing type, shoe type) and plant characteristics (species pool of the visited habitats and plant traits) on the number of diaspores and array of species dispersed. We assessed the habits of people that could be relevant for HVD with a questionnaire survey. A total of 35,935 diaspores of 229 plant taxa were identified from the samples, which indicates a huge potential of HVD in dispersing diaspores across habitats and regions. Most diaspores were recorded in grassland habitats, and more diaspores were dispersed during fieldwork than excursions. Clothing type also played a decisive role: there were more diaspores and species when wearing short-top shoes and short trousers than long ones. Even though our study was carried out mainly in natural or semi-natural habitats, a large number of dispersed species were disturbance-tolerants and weeds and only a few were specialists, suggesting the controversial role of HVD in conservation. At the individual level, people can reduce the number of diaspores through their clothing choices and diaspore removal habits, while providing adequate equipment for staff, operating cleaning stations, and increasing awareness of employees are main ways in which unintended diaspore dispersal can be tackled at the institutional level.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Diaspore Dispersal vector Human-mediated seed dispersal Introduced plants Long-distance dispersal Zoochory
Megjelenés:	Science Of The Total Environment. - 906 (2024), p. 1-8. -
További szerzők:	Tóth Ágnes Kiss Réka (1990-) (biológus, ökológus) Deák Balázs (1978-) (biológus) Rádai Zoltán (1991-) (biológus) Tóth Katalin (1988-) (biológus) Kelemen András (1986-) (biológus-ökológus) Bátori Zoltán Hábenczyus Alida Anna Tölgyesi Csaba (1984-) (ökológus) Miglécz Tamás (1986-) (biológus ökológus) Godó Laura (1992-) (biológus, ökológus) Valkó Orsolya (1985-) (biológus)
Pályázati támogatás:	RRF-2.3.1-21- 2022-00006 Egyéb KKP 144096 Egyéb PD 137632 Egyéb FK 135329 Egyéb FK 142428 Egyéb
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001-es BibID:	BIBFORM101279
035-os BibID:	(WoS)000785983700004 (Scopus)85128657457
Első szerző:	Tóth Ágnes
Cím:	Vertical distribution of soil seed bank and the ecological importance of deeply buried seeds in alkaline grasslands / Tóth Ágnes, Deák Balázs, Tóth Katalin, Kiss Réka, Lukács Katalin, Rádai Zoltán, Godó Laura, Borza Sándor, Kelemen András, Miglécz Tamás, Bátori Zoltán, Novák Tibor József, Valkó Orsolya
Dátum:	2022
ISSN:	2167-8359
Megjegyzések:	Background: Soil seed banks play a central role in vegetation dynamics and may be an important source of ecological restoration. However, the vast majority of seed bank studies examined only the uppermost soil layers (0?10 cm); hence, our knowledge on the depth distribution of seed bank and the ecological significance of deeply buried seeds is limited. The aim of our study was to examine the fine-scale vertical distribution of soil seed bank to a depth of 80 cm, which is one of the largest studied depth gradients so far. Our model systems were alkaline grasslands in East- Hungary, characterised by harsh environmental conditions, due to Solonetz soil reference group with Vertic horizon. We asked the following questions: (1) How do the seedling density and species richness of soil seed bank change along a vertical gradient and to what depth can germinable seeds be detected? (2) What is the relationship between the depth distribution of the germinable seeds and the species traits? Methods: In each of the five study sites, four soil cores (4 cm diameter) of 80 cm depth were collected with an auger for soil seed bank analysis. Each sample was divided into sixteen 5-cm segments by depth (320 segments in total). Samples were concentrated by washing over sieves and then germinated in an unheated greenhouse. Soil penetration resistance was measured in situ next to each core location (0?80 cm depth, 1-cm resolution). We tested the number and species richness of seedlings observed in the soil segments (N = 320), using negative binomial generalized linear regression models, in which sampling layer and penetration resistance were the predictor variables. We ran the models for morphological groups (graminoids/forbs), ecological groups (grassland species/weeds) and life-form categories (short-lived/perennial). We also tested whether seed shape index, seed mass, water requirement or salt tolerance of the species influence the vertical distribution of their seed bank. Results: Germinable seed density and species richness in the seed bank decreased with increasing soil depth and penetration resistance. However, we detected nine germinable seeds of six species even in the deepest soil layer. Forbs, grassland species and short-lived species occurred in large abundance in deep layers, from where graminoids, weeds and perennial species were missing. Round-shaped seeds were more abundant in deeper soil layers compared to elongated ones, but seed mass and ecological indicator values did not influence the vertical seed bank distribution. Our research draws attention to the potential ecological importance of the deeply buried seeds that may be a source of recovery after severe disturbance. As Vertisols cover 335 million hectares worldwide, these findings can be relevant for many regions and ecosystems globally. We highlight the need for similar studies in other soil and habitat types to test whether the presence of deep buried seeds is specific to soils with Vertic characteristics.
Tárgyszavak:	Biológiai tudományok Természettudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Soil seed bank Alkali grassland Deeply buried seeds Restoration Seed ecology Soil penetration resistance Vertical distribution Seed density Vertisols Seed shape
Megjelenés:	PeerJ. - 10 (2022), p. 1-19. -
További szerzők:	Deák Balázs (1978-) (biológus) Tóth Katalin Kiss Réka (1990-) (biológus, ökológus) Lukács Katalin (1993-) (biológus) Rádai Zoltán (1991-) (biológus) Godó Laura (1992-) (biológus, ökológus) Borza Sándor (1989-) (biológus) Kelemen András (1986-) (biológus-ökológus) Miglécz Tamás (1986-) (biológus ökológus) Bátori Zoltán Novák Tibor (1973-) (geográfus) Valkó Orsolya (1985-) (biológus)
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