Key Mortality Causes of the Great Bustard (Otis Tarda) in Central Hungary: An Analysis of Known Fatalities

In this study, we identified the key mortality causes of eggs, juveniles and adults of the Great Bustard (Otis tarda) and quantified the relative importance of those, based on systematic data collection that have been carried out during the period between 2005 and 2014 at the Upper-Kiskunság region...

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Autores principales:	Vadász Csaba, Lóránt Miklós
Formato:	article
Lenguaje:	EN
Publicado:	Sciendo 2014
Materias:	great bustard mortality factors collision with cables mowing anthropogenic disturbance Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/fba607022d5b4d5aa7252cb9a58e4165
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spelling	oai:doaj.org-article:fba607022d5b4d5aa7252cb9a58e41652021-12-05T14:11:08ZKey Mortality Causes of the Great Bustard (Otis Tarda) in Central Hungary: An Analysis of Known Fatalities2061-958810.2478/orhu-2014-0016https://doaj.org/article/fba607022d5b4d5aa7252cb9a58e41652014-12-01T00:00:00Zhttps://doi.org/10.2478/orhu-2014-0016https://doaj.org/toc/2061-9588In this study, we identified the key mortality causes of eggs, juveniles and adults of the Great Bustard (Otis tarda) and quantified the relative importance of those, based on systematic data collection that have been carried out during the period between 2005 and 2014 at the Upper-Kiskunság region in Central Hungary. Rate of mortality regarding juveniles and adults was 39.71% caused by anthropogenic factors. Within the anthropogenic factors leading to mortality, collision was represented by 81.48% of fatalities, whereas mowing/hay making represented by 18.52%. Hay making/mowing was the factor leading to unsuccessful breeding attempt with the strongest negative effect on the breeding success of the investigated population of the Great Bustard, as it was represented by 50.96% of all known mortality cases. Chemical treatment had the factor with the second strongest effect, as it was represented by 12.33% of all known mortality cases. The rate of unsuccessful breeding (hatching) caused by particular activities (hay making/mowing, tillage, harvesting) varied between 68.42% and 75.00%. It was the disturbance by passers-by which led to the highest portion of unsuccessful breeding with 83.33% unsuccessful nests.Vadász CsabaLóránt MiklósSciendoarticlegreat bustardmortality factorscollision with cablesmowinganthropogenic disturbanceEcologyQH540-549.5ENOrnis Hungarica, Vol 22, Iss 2, Pp 32-41 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	great bustard mortality factors collision with cables mowing anthropogenic disturbance Ecology QH540-549.5
spellingShingle	great bustard mortality factors collision with cables mowing anthropogenic disturbance Ecology QH540-549.5 Vadász Csaba Lóránt Miklós Key Mortality Causes of the Great Bustard (Otis Tarda) in Central Hungary: An Analysis of Known Fatalities
description	In this study, we identified the key mortality causes of eggs, juveniles and adults of the Great Bustard (Otis tarda) and quantified the relative importance of those, based on systematic data collection that have been carried out during the period between 2005 and 2014 at the Upper-Kiskunság region in Central Hungary. Rate of mortality regarding juveniles and adults was 39.71% caused by anthropogenic factors. Within the anthropogenic factors leading to mortality, collision was represented by 81.48% of fatalities, whereas mowing/hay making represented by 18.52%. Hay making/mowing was the factor leading to unsuccessful breeding attempt with the strongest negative effect on the breeding success of the investigated population of the Great Bustard, as it was represented by 50.96% of all known mortality cases. Chemical treatment had the factor with the second strongest effect, as it was represented by 12.33% of all known mortality cases. The rate of unsuccessful breeding (hatching) caused by particular activities (hay making/mowing, tillage, harvesting) varied between 68.42% and 75.00%. It was the disturbance by passers-by which led to the highest portion of unsuccessful breeding with 83.33% unsuccessful nests.
format	article
author	Vadász Csaba Lóránt Miklós
author_facet	Vadász Csaba Lóránt Miklós
author_sort	Vadász Csaba
title	Key Mortality Causes of the Great Bustard (Otis Tarda) in Central Hungary: An Analysis of Known Fatalities
title_short	Key Mortality Causes of the Great Bustard (Otis Tarda) in Central Hungary: An Analysis of Known Fatalities
title_full	Key Mortality Causes of the Great Bustard (Otis Tarda) in Central Hungary: An Analysis of Known Fatalities
title_fullStr	Key Mortality Causes of the Great Bustard (Otis Tarda) in Central Hungary: An Analysis of Known Fatalities
title_full_unstemmed	Key Mortality Causes of the Great Bustard (Otis Tarda) in Central Hungary: An Analysis of Known Fatalities
title_sort	key mortality causes of the great bustard (otis tarda) in central hungary: an analysis of known fatalities
publisher	Sciendo
publishDate	2014
url	https://doaj.org/article/fba607022d5b4d5aa7252cb9a58e4165
work_keys_str_mv	AT vadaszcsaba keymortalitycausesofthegreatbustardotistardaincentralhungaryananalysisofknownfatalities AT lorantmiklos keymortalitycausesofthegreatbustardotistardaincentralhungaryananalysisofknownfatalities
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Key Mortality Causes of the Great Bustard (Otis Tarda) in Central Hungary: An Analysis of Known Fatalities

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