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001-es BibID:	BIBFORM116030
035-os BibID:	(Scopus)85175861985 (WoS)001099926100001
Első szerző:	Mizsei Edvárd (biológus ökológus)
Cím:	Before-after-control-impact field experiment shows anti-predator netting enhances occupancy of the threatened Hungarian meadow viper (Vipera ursinii rakosiensis) / Edvárd Mizsei, Mátyás Budai, Bálint Wenner, Gergő Rák, Dávid Radovics, Barnabás Bancsik, Gergő Kovács, Ádám Tisza, János Simics, Márton Szabolcs, Csaba Vadász, Attila Móré
Dátum:	2023
ISSN:	1903-220X
Megjegyzések:	The Hungarian meadow viper is an endangered grassland-dwelling species, which faces high predation pressure, partially due to avian species that forage in its habitat. Predation pressure by avian predators is caused not only by abundant game species (e.g. hooded crow, Corvus cornix) but also by protected and threatened species (e.g. short-toed eagle, Cricaetus gallicus; common buzzard, Buteo buteo; roller, Coracias garrulus) in the project area (Felső-kiskunsági turjánvidék, Hungary). Mark?recapture data of a reintroduced viper population showed a very low, 42% yearly average apparent survival rate. To establish a strong sub-population we applied anti-predator netting (APN) by building a 200 ? 200 ? 3 m (4 ha) totally closed exclusion site with a mesh net, lateral sides boosted with a 1 m high steel field fence to exclude mammals as well as birds. To test the effect of APN we monitored viper occupancy at 50 ? 50 m sampling plots in a before?after/control?intervention (BACI) design, where we randomly placed quadrats 0.25 ha (50 ? 50 m) to be surveyed, n = 26 at control habitats and n = 4 below the APN enclosure. We collected data across four years (2020?2023), in each year during the spring by 10 surveys replicates in each plot resulting in 1200 surveys to record viper detection/non-detection data. We applied a multi-season occupancy model to estimate site occupancy changes to test the effects of the BACI design. Occupancy probabilities were increasing during the four consecutive survey years in both the control and the intervention sites, however except for the initial occupancy, the occupancy probability became significantly higher at APN sites, and the APN intervention had a significant positive effect on viper occupancy, while the distance to APN showed negative effect. Predator exclusion is an effective method to minimise predation pressure and potentially has a deterministic positive demographic outcome, however, due to the high logistical and maintenance costs, this measure can be applied at only a few sites.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk occupancy modelling predation exclusion reptile management species conservation species recovery
Megjelenés:	Wildlife Biology. - 3 (2023), p. 1-9. -
További szerzők:	Budai Mátyás Wenner Bálint Rák Gergő (1999-) (phd hallgató) Radovics Dávid (1990-) (biológus) Bancsik Barnabás Kovács Gergő Tisza Ádám Simics János Szabolcs Márton Vadász Csaba Móré Attila (1987-) (biológus)
Pályázati támogatás:	K 134391 OTKA
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM120589
035-os BibID:	(Scopus)85133057177 (WoS)000768162400001
Első szerző:	Móré Attila (biológus)
Cím:	Analysis of mammal mesopredator scat samples indicates significant predation on the endangered Hungarian meadow viper (Vipera ursinii rakosiensis) / Attila Móré, Edvárd Mizsei, Csaba Vadász, Béla Tóthmérész, Miklós Heltai
Dátum:	2022
ISSN:	0909-6396 1903-220X
Megjegyzések:	Animal populations are regulated by multiple factors, e.g. resource availability, diseases and predators. However, these factors can be significantly influenced by anthropogenic effects (e.g. biological invasions, mesopredator release) and either subserve populations or push them towards local extinction. The Hungarian meadow viper Vipera ursinii rakosiensis is an endangered reptile, with only a few surviving populations following recent alterations and fragmentation of their habitats. In Hungary, all documented populations are located within nature conservation areas. Significant practical conservation efforts have been made, including habitat reconstruction and development, as well as ex situ breeding and reintroductions. Nevertheless, the estimated overall population size of Hungarian meadow viper remains very low, and the impact of conservation interventions is practically immeasurable according to low densities. It is hypothesized that predation is the main factor interfering with conservation efforts of the vipers. Here, we analysed the diet of two mammalian predators (European badger and red fox) in a Hungarian meadow viper habitat. We found a high prevalence of viper remains in the processed faecal samples, indicating that a high number of individuals vipers are subject to predation even within a short period of time. We conclude that effective predator control might be necessary to increase the impact of standard conservation measures (e.g. habitat development, ex situ breeding and reintroduction) that target the restoration of Hungarian meadow viper populations.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk conservation predation pressure predator control reptiles snakes wildlife management
Megjelenés:	Wildlife Biology. - 2022 : 4 (2022), p. 1-7. -
További szerzők:	Mizsei Edvárd (1989-) (biológus ökológus) Vadász Csaba Tóthmérész Béla (1960-) (ökológus) Heltai Miklós
Pályázati támogatás:	EFOP-3.6.3-VEKOP-16-2017-00008 EFOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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