A legeltetés hatása mediterrán gyepek regenerációjára: Új cikkünk a Tuexenia-ban

Megjelent legújabb cikkünk a Tuexenia c. folyóiratban, melyben a legeltetés hatását vizsgáljuk mediterrán gyepek spontán regenerációjára. Nagyon örülünk, hogy Rocco Labadessa barátunkkal ezen az érdekes témán dolgozhattunk, és reméljük, hogy a jövőben arra is lesz alkalmunk, hogy élőben is megnézzük az Alta Murga-i gyepeket.

A cikk hivatkozása:

Labadessa, R., Deák, B., Valkó, O. (2020): No need for grazing exclusion – Sheep grazing supports the recovery of grasslands even from the early successional stages. Tuexenia 40: 429-443.

A cikk ide kattintva tölthető le.

A közlemény összefoglalója az alábbiakban olvasható.

Availability and dispersal of target plant propagules and applied management techniques can considerably affect the success of grassland restoration. In our study we explored the effect of sheep grazing on plant species composition of an early staged recovering grassland, which developed on newly created soil surfaces. We recorded the presence and cover of vascular plant species in 17 grazed and 6 ungrazed plots during three consecutive years after the restoration of a landfill in southern Italy. A DCA ordination based on species percentage cover was calculated to assess the species composition of the plots in the three years. Plant assemblages were compared to adjacent reference grassland in terms of species composition and cover of functional groups based on their role (i.e. target species or weeds) and their seed dispersal potential (i.e. high or low epizoochorous ranking index). For each parameter, Relative Response Indices (RRIs) were calculated to assess the relationship between the vegetation characteristics of the restored areas and the reference grassland. The DCA ordination of plant communities in the restored area revealed gradients of increasing similarity to reference grassland as a function of successional age and grazing. For most of the considered vegetation characteristics, RRIs in restored grassland became more similar to the reference grassland with increasing successional age and under grazed conditions. Besides underlining the role of passive restoration in supporting effective grassland recovery, our results revealed that extensive sheep grazing even from the early successional stages can improve target species dispersal and establishment, and enhance grassland restoration. Our results suggest that grazing can improve the feasibility and sustainability of restoration projects by saving costs of fence installation and providing forage for local animal husbandry.

Sajnos már jó régen találkoztunk Rocco-val. Ez a kép a legutóbbi találkozásunkkor, egy hortobágyi kiránduláson készült.

 

 

Természet a városban? Új cikkünk a városlakók természetközeli zöldterületekről alkotott képéről a Basic and Applied Ecology-ban

Most jelent meg az európai városi zöldterületekkel kapcsolatos kérdőíves felmérésünkből született második cikk, Jussi Lampinen elsőszerzőségével a Basic and Applied Ecology c. folyóiratban. Köszönet Jussi Lampinen, Valentin Klaus, Leonie Fischer és Lena Neuenkamp, illetve minden kollegának, hogy mi is részt vehettünk ebben a nagyon érdekes projektben.

Lampinen, J., Tuomi, M., Fischer, L.K., Neuenkamp L., Alday, J.G., Casado-Arzuaga, I., Čeplová, N., Deák, B., Eriksson, O., Escriche, A.M., Fellowes, M.D.E., Fernández De Manuel, B., Filibeck, G., González-Guzmán, A., Hinojosa, M.B., Kowarik, I., Lampei Bucharová, A., Lumbierres, B., Pardo i Martín, R., Pons, X., Rodríguez-García, E., Schröder, R., Tatay, L.C., Unterweger, P., Valkó, O., Vázquez Manzanares, V.M., Klaus, V.H. (2020): Acceptance of near-natural greenspace management relates to ecological and socio-cultural assigned values among European urbanites. Basic and Applied Ecology (in press) [IF2019: 3.156]

A végleges cikk hamarosan elérhető lesz, addig is az elfogadott kézirat letölthető ide kattintva.

A városi zöldterületek nagyon fontos szerepet töltenek be életünkben, hiszen a mindennapokban ezek az élőhelyek biztosítják a kapcsolatunkat a természettel. Kérdőíves felmérésünkben arra voltunk kíváncsiak, hogy az európai városlakók mennyiben fogadják el a természetközeli gyepeket a városokban, és milyen ökológiai és szocio-kulturális értékekkel bírnak ezek az élőhelyek a városlakók számára.

A cikk összefoglalója az alábbiakban olvasható.

Abstract

Grasslands are widespread elements of urban greenspace providing recreational, psychological and aesthetic benefits to city residents. Two urban grassland types of contrasting management dominate urban greenspaces: frequently mown, species-poor short-cut lawns and less intensively managed, near-natural tall-grass meadows. The higher conservation value of tall-grass meadows makes management interventions such as converting short-cut lawns into tall-grass meadows a promising tool for urban biodiversity conservation. The societal success of such interventions, however, depends on identifying the values urban residents assign to different types of urban grasslands, and how these values translate to attitudes towards greenspace management. Using 2027 questionnaires across 19 European cities, we identify the assigned values that correlate with people's personal greenspace use and their preferences for different types of urban grasslands to determine how these values relate to the agreement with a scenario of converting 50% of their cities’ short-cut lawns into tall-grass meadows. We found that most people assigned nature-related values, such as wildness, to tall-grass meadows and utility-related values, such as recreation, to short-cut lawns. Positive value associations of wildness and species richness with tall-grass meadows, and social and nature-related greenspace activities, positively correlated with agreeing to convert short-cut lawns into tall-grass meadows. Conversely, disapproval of lawn conversion correlated with positive value associations of cleanliness and recreation potential with short-cut lawns. Here, people using greenspaces for nature-related activities were outstandingly positive about lawn conversion. The results show that the plurality of values assigned to different types of urban grasslands should be considered in urban greenspace planning. For example, tall-grass meadows could be managed to also accommodate the values associated with short-cut lawns, such as tidiness and recreation potential, to support their societal acceptance.

 

A vizsgált városi gyeptípusok: magasfüvű, természetközeli gyep, és rövidre nyírt pázsit.