Miklós Heltai

Miklós Heltai
Szent István University, Godollo | szie · Institute for Wildlife Conservation

PhD, DSc

About

169
Publications
71,786
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
1,543
Citations
Additional affiliations
January 2006 - present
Szent István University
February 1992 - present
Szent István University, Godollo
Position
  • Professor (Associate)

Publications

Publications (169)
Article
Full-text available
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 r...
Data
Regular assessments of species’ status are an essential component of conservation planning and adaptive management. They allow the progress of past or ongoing conservation actions to be evaluated and can be used to redirect and prioritise future conservation actions. Most countries perform periodic assessments for their own national adaptive manage...
Article
Full-text available
Studies of wild boar, Sus scrofa Linnaeus 1758, in urban and suburban areas of Budapest, Hungary, have indicated that these populations do not have continuous contact. Based on the assumption that the city has a discrete population, we hypothesized that the urban wild boar would differ genetically from those in suburban areas. Analysis of single-nu...
Article
Full-text available
Background In Europe, golden jackals ( Canis aureus ) have been expanding their range out of the southern and southeastern Balkans towards central Europe continually since the 1960s. Here, we investigated the level of functional diversity at the MHC class II DLA-DQA1 exon 2 in golden jackal populations from Bulgaria, Serbia, and Hungary. Specifical...
Article
Full-text available
Large-scale monitoring of wild populations in remote areas using traditional live-capturing methods is logistically and financially challenging. Devices that can be used to obtain biological material remotely and store it for an extended period have considerable potential to monitor population densities and health status, but their applicability re...
Article
Full-text available
Sexual dimorphism is a widespread phenomenon among mammals, including carnivorans. While sexual dimorphism in golden jackals ( Canis aureus ) has been analysed in the past, in the related and apparently convergent canid, the African wolf ( Canis lupaster ), it is poorly studied and showed to be relatively small. Previously, sexual size dimorphism (...
Article
Full-text available
Species range expansions and (re)colonization of landscapes variously dominated by humans occur on a global scale. Understanding such range enlargements and subsequent changes in the composition of ecological communities is important for conservation management, and the golden jackal (Canis aureus) can be considered a model species for regional and...
Article
During the last half-century, the distribution of golden jackals (Canis aureus) has rapidly increased throughout Europe. Today, golden jackals are thriving in human-dominated landscapes across Southeastern and Central Europe. Most studies on golden jackals have focused on large-scale distribution patterns; to date, little is known about the species...
Article
Full-text available
Pregnancy diagnosis is an essential part of fertility management in cattle. Early detection of pregnancy 21 days after artificial insemination (AI) allows for early recognition and rebreeding of non-pregnant animals with a minimum delay, which benefits the economic interest for farmers. Rapid progesterone P4 tests are widely used in fertility manag...
Thesis
Full-text available
The Golden Jackal (Canis aureus) is a meso-carnivore which has a wide geographical distribution range across the world. In Europe, the species has largely extended its range across several parts of the continent, including Hungary in the 20th Century. This has led to arguments regarding various challenges faced by the management authorities and int...
Article
Full-text available
Golden jackal (Canis aureus) monitoring in central Europe generates more interest and becomes increasingly important with the species' appearance in areas where it was previously unestablished. For genetic monitoring of golden jackals via scat collection, the distinction of jackal scats from those of related species such as the red fox (Vulpes vulp...
Article
Full-text available
Expansion and urbanization process of wild boar (Sus scrofa) populations lead to serious human-wildlife conflicts in many cities, e.g. in Budapest, Hungary. In this study we evaluated the penetration potential of the species into the inner urban areas by identifying the occurrence of wild boar and the quality of the habitat patches for them along a...
Article
Full-text available
In our study, we examined the movement of two wild boars marked with GPS/GSM transmitters in city of Budapest. We hypothesised that: the wild boars do not leave the urban area (H1); the wild boars prefer places that are less disturbed by people, and which are rich in potential hiding places (H2); and their home ranges would be smaller than that of...
Data
"Non-linear relationship between body size of terrestrial carnivores and their trophic niche breadth and overlap" Appendix A: Figure 1. The location of study regions in Central and Eastern Europe. Appendix B. Diet composition and body mass of terrestrial carnivores in different forest regions of Europe. Appendix C: Figure 2. Effects of carnivore...
Article
Studying food partitioning of mammalian predators is important for understanding trophic structures and interactions between coexisting carnivore species. This is particularly pertinent in the light of expanding ranges of populations of generalist species whose habitat and diet overlap with more specialized species. Here, we tested the resource par...
Article
Full-text available
Raccoons have been present in Georgia since the second half of the 20th century. Raccoons were introduced in most parts of the Soviet Union including Azerbaijan from where raccoons eventually found themselves on Georgian territory. Today rural residents are complaining about raccoon damage which is induced to their private property, crops, domestic...
Article
Full-text available
We examined the mortality causes, body mass, body length and tail length of carcasses (males n = 195, females n = 165, unknown n = 4) of the strictly protected otter (Lutra lutra) collected in Hungary between 1999 and 2017. Sexual dimorphism was marked in all body dimensions. Body mass of adult males was significantly higher compared to females (me...
Conference Paper
Full-text available
According to the hunters, the golden jackal population largely affected the game reserve species like roe deer (Capreolus capreolus) and fallow deer (Dama dama) populations. Besides this assumption, several stakeholders, including gamekeepers and sport hunters as well as the cattle, sheep and poultry farmers also support this statement. The results...
Article
The Eurasian golden jackal (Canis aureus) is currently undergoing a rapid range expansion. Originally restricted to small coastal areas of the Mediterranean and Black seas, this highly adaptive and generalist species is now reproducing throughout Southeastern and Central Europe. In addition, individuals are being seen further to the North and West....
Article
Full-text available
Az agrárökoszisztémákban közönséges rágcsálók a globális kártevők egyik legfontosabb csoportját képezik. Ezek a kisemlősök az időszakos gradációk alkalmával jelentős károkat okozhatnak a mezőgazdasági, és az erdészeti területeken. A gradáció kialakulását segíthetik a mezőgazdasági táblákat övező szegélyterületek is. Vizsgálatunkkal arra kerestünk v...
Article
Full-text available
Wild boar (Sus scrofa) is one of the most widespread mammals of our planet. It has the greatest impact on its environment by its feeding behaviour (digging, grazing and predation). Since it is a generalist and opportunistic species, its nutritional composition is extremely plastic, therefore it is able to adapt well to the consumption of the food s...
Article
Demography of the golden jackal (Canis aureus) was affected by various events in the past, but today jackal populations are increasing throughout Europe. Despite the fact that it is one of the most rapidly spreading mammals in Europe, previous genetic studies detected low genetic diversity among and within populations. The Hungarian landscape is no...
Article
Full-text available
This study describes the cranial epigenetic pattern of the Golden Jackal (Canis aureus L.) populations in the core area of its expanding Southeast Eu-ropean range. We studied variations in 13 craniometric non-metric traits in skulls of 202 adult specimens of Golden Jackal collected from six populations in Bulgaria, Serbia and Hungary, which expands...
Data
Provisional clustering of the abstracts, external use (Corresponding Authors) Legend: First letter= the day of presentation, 2nd digit = the session, 3rd or 3rd and 4th digits =the order, next letter = type of presentation (K Keynote, C oral communication, P poster), digits after letter = duration. Example: W110C5 Wednesday in the first session,...
Article
Full-text available
The golden jackal is a relativeley new species to the Province Burgenland, Austria. In 2007 the first reproduction was confirmed. Here we summarise some data also from the neighbouring country Hungary and present hunting bag data also from roe deer, fallow deer and red fox. It seems that up to the data collected (2016) there was no decline in hunti...
Article
Full-text available
The intensive establishment of new populations of the European golden jackal (Canis aureus moreoticus Geoffrey 1835) in the Southeastern part of Europe, motivated us to explore the population levels of developmental stability of this species. The population levels were assessed through the fluctuating asymmetry determined as minor non-directional d...
Article
Full-text available
Wild boar (Sus scrofa) is one of the most widespread mammals of our planet. It has the greatest impact on its environment by its feeding behaviour (digging, grazing and predation). Since it is a generalist and opportunistic species, its nutritional composition is extremely plastic, therefore it is able to adapt well to the consumption of the food s...
Article
This study describes the craniometrical population pattern of the European golden jackal (Canis aureus moreoticus) populations inhabiting the southeastern part of its European range. The craniometric analysis was carried out using 18 linear skull and dental parameters. The analysis included 167 adult individuals (78 males and 89 females), originati...
Conference Paper
Full-text available
Red fox and badger plays an important role in the ecosystem and thus has tremendous effects on nature conservation areas. The examined sites belongs to the Gödöllő Hillside Landscape Protection District, whose soils are basically on sandy parent material but the area chosen between the settlements of Valkó and Gödöllő differs. The Gödöllő area is c...
Conference Paper
Full-text available
The golden jackal’s Canis aureus range in Europe is expanding rapidly and populations are increasing. Historically restricted to the Mediterranean and Black sea coastal regions [1], jackals are now reproducing in most of Southeastern European and some Central European countries [2-4]. Current population trends suggest that population expansion is f...
Poster
Full-text available
Summary and preliminary results of golden jackal surveys in the Austrian - Hungarian border region
Article
Full-text available
The present review of the herpetofauna of the small islands of the Cres–Lošinj Archipelago (Croatia) is based on literature data and observations made by the authors in 2011 to 2014. The 16 islets and islands ranging in size between 0.05 km2 (Zabodaski) and 16.92 km2 (Unije) are all inhabited by at least one species of wall lizard of the genus Pod...
Article
Full-text available
Surveys of mammals can be difficult to carry out due to their elusive lifestyle and nocturnal behavior. In order to minimize the disturbance to target species, indirect or noninvasive methods are recommended. These techniques can enable the collection of samples without disturbing the animals. Active methods (e.g. hair traps) are based on artificia...
Article
Full-text available
In order to better understand the ecology of the golden jackal (Canis aureus) and interspecific relationships among carnivores, we studied its dietary pattern and the diet of its main competitor, the red fox (Vulpes vulpes) over a three-year period. The study was carried out in an agricultural area in SW Hungary and was based on scat analysis (jack...
Article
Full-text available
Studying carnivores requires sophisticated methods by wildlife biologists. Hair collecting is one among many useful noninvasive techniques. In this study, we have compiled a quantitative literature review, tested three hair collecting devices, tested the reliability of morphological identification, and determined the amount of mtDNA in different ha...
Article
Full-text available
The Carpathians are one of the strongholds of the large carnivore (LC) and large herbivore (LH) populations in Europe and form a cross-border bioregion. In spite of the importance and key-stone role of these species, their public reputation is contradictory, resulting in non-synchronised management among neighbouring countries based on databases an...
Article
Full-text available
Monitoring of presence or estimation of density of carnivores using invasive or disruptive methods, like hunting, life-catching or visual observation can bias research results and might be controversial when studying threatened species. Therefore, non-invasive approaches become increasingly used in the last few decades. Hair collection is one among...
Article
Full-text available
Diet composition of the Eurasian otter (Lutra lutra) in two fish ponds at Isaszeg and Tárnok In the last few decades the strictly protected Eurasian otter became a quasi-common predator species in Hungary and Central Europe. By their feeding the increasing (or at least stable) otter populations are able to cause locally serious damages to fishfarm...
Article
Full-text available
The European badger (Meles meles) and the red fox (Vulpes vulpes) are the two most common mesocarnivores in Hungary. The populations of both species are increasing. The badger has settled in various habitats in the last two decades, while the red fox can often be seen in urban habitats. Due to their wide tolerance of environmental conditions wildli...
Article
Full-text available
A molecular-genetic analysis of a control region and cytochrome b gene of the mtDNA of red deer (Cervus elaphus) from East-Central Europe (Pannonian Basin), South-Eastern Europe (South-Eastern part of the Balkan Peninsula) and in East European Plain (Northern Pontic region) has been carried out. The manifested genetic diversity of red deer, based o...
Article
Full-text available
Small mammals are the base for most of the natural communities in Hungary. Their species richness and population density are excellent indicators of the habitat diversity. Most of the previous publications in Hungary are about faunistic and population dynamics and they focus on South Hungary. Our study area therefore was designated at the northern...
Article
Full-text available
In the first continent-wide study of the golden jackal (Canis aureus), we characterised its population genetic structure and attempted to identify the origin of European populations. This provided a unique insight into genetic characteristics of a native carnivore population with rapid large-scale expansion. We analysed 15 microsatellite markers an...
Poster
Full-text available
Owing to their rarity, elusive lifestyle and cunning carnivores require sophisticated techniques to study. Hair collection by special devices is one among many useful non-invasive techniques.
Conference Paper
Full-text available
The golden jackal’s Canis aureus range in Europe is expanding rapidly. Historically restricted to the Mediterranean and Black sea coastal regions, golden jackals are now reproducing in most of Southeastern European and some Central European countries. In addition, vagrant animals have been detected further to the north and west (Estonia, Germany, S...
Article
Full-text available
The dynamic spread of the golden jackal (Canis aureus) in Hungary results in human—carnivore conflicts. We presumed that in an area of intensive big-game management the jackal's diet would contain an increased proportion of ungulates (or their viscera). We collected and analysed the stomachs of 62 jackals during a period of two years. Viscera and c...
Conference Paper
Full-text available
The golden jackal (Canis aureus) is one of the most successful medium-sized carnivores (mesopredator) of the 21st century in East-Central Europe. It is native to three continents as its occurrence area ranges from North- and East Africa to Southern Europe, and eastwards to Central- and South Asia. The dynamic spreading of golden jackal in the last...
Article
Full-text available
Nosema ceranae is present in honey bee (Apis mellifera L.) colonies worldwide. Studies on the comparative virulence of N. ceranae and N. apis showed significant differences in individual mortality, and the prevalence of N. ceranae seems to be predominant in both the continental and the Mediterranean climate regions. This study attempted to monitor...
Article
Full-text available
The diet composition and feeding habits of the Eurasian otter (Lutra lutra) were studied by post mortem examination of individuals (n = 236) found dead in Hungary in order to test the dietary differences between sample types (stomach and rectum), calculation methods and different factors. A relationship was found between the summarized wet weight (...
Article
Full-text available
The genetic diversity of Red Deer (Cervus elaphus) in Hungary was studied using a fall-length cytochrome b gene (1140 bp). The haplotype structure of this species was evaluated in the three main partially geographically separated populations in this country. Throughout the country, the genetic diversity of the Red Deer was represented by individual...
Article
Full-text available
Farming practices that benefit biodiversity and maintain the sustainable use of natural resources play an increasing role in the Common Agricultural Policy of the EU. These requirements on arable lands and pasture fields can mostly achieved by agri-environment schemes, dissolving the land use conflicts in rural areas. The success of certain AES can...
Article
Full-text available
SSZEFOGLALÁS Az aranysakál (Canis aureus) elterjedt ragadozó Afrika északi és keleti, Ázsia középső és dél-keleti, valamint Európa dél-keleti területein. A 20. század közepéig a korábbi európai elterjedési területének nagy részéről kipusztult. Jelenlegi ismereteink szerint a Balkán-félsziget délkeleti területén fennmaradt populációiból indult a faj...