Viktor Löki

Viktor Löki
Hungarian Academy of Sciences | HAS · MTA Centre for Ecological Research

PhD

About

48
Publications
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399
Citations

Publications

Publications (48)
Article
Full-text available
Trait-based ecology is gaining ground nowadays on species-based ecology: the number of research and publication focusing on the ecological role of taxa instead of the species themselves increased significantly in the last two decades. One great advantage of this approach is that communities with different species composition due to great geographic...
Preprint
The expansion of alien plant species is of global concern, yet our understanding of their dispersal mechanisms is limited, especially regarding the role of migratory birds. We hypothesize that invasiveness of alien wetland plants might depend on specific adaptations that ensure high seed survival in the digestive tract of waterfowl, ensuring their...
Article
Full-text available
Törökország orchideaflórájára jellemző, hogy egyrészt az egyik leggazdagabb a Mediterrán térségben, másrészt a mezőgazdaság intenzívebbé válása, a tájhasználat megváltozása, az élőhelyek átalakulása, a túllegeltetés és a gumók kiásásával járó szálep-gyűjtés miatt rendkívül veszélyeztetett. Közleményünkben szeretnénk felhívni a figyelmet a gazdasági...
Article
Full-text available
In order to explore their orchid flora, we performed surveys of 96 Azerbaijani burial places in 2018 and 2019. Altogether, 28 orchid taxa were found in 37 visited cemeteries. In the orchid diversity a remarkable pattern was observed: geographic latitude was significantly and positively related to the number of taxa and number of individuals. The mo...
Article
Full-text available
Background Documenting local ecological knowledge (LEK) has recently become a topic of considerable interest. LEK can contribute to various areas of ecology, including habitat management and conservation biology. It has been recently revealed that recreational fishers’ ecological knowledge (FEK) can also provide valuable information about different...
Preprint
Full-text available
Background: Documenting local ecological knowledge (LEK) has recently became a topic of considerable interest. LEK can contribute to various areas of ecology, including habitat management and conservation biology. It has been recently revealed that recreational fishers’ ecological knowledge (FEK) can also provide valuable information about differen...
Article
Full-text available
This is the twelfth of a series of miscellaneous contributions, by various authors, where hitherto unpublished data relevant to both the Med-Checklist and the Euro+Med (or Sisyphus) projects are presented. This instalment deals with the families Asparagaceae (incl. Hyacinthaceae), Boraginaceae, Cactaceae, Caryophyllaceae, Chenopodiaceae, Compositae...
Article
Full-text available
The role of anthropogenically influenced habitats in conserving elements of the original wildlife has increased worldwide simultaneously with the disappearance of natural sites. Burial places are able to conserve original elements of the wildlife, and this fact has been known for at least a century. To this day, little is known about long‐time chan...
Article
Full-text available
Fish have somehow colonized isolated water bodies all over the world without human assistance. It has long been speculated that these colonization events are assisted by waterbirds, transporting fish eggs attached to their feet and feathers, yet empirical support for this is lacking. Recently, it was suggested that endozoochory (i.e., internal tran...
Article
For 491 vascular plant species we provide original data of five leaf traits: fresh mass, dry mass, leaf area (LA), specific leaf area (SLA) and leaf dry matter content (LDMC). We are focusing on species that are rare and/or endemic to the Pannonian Ecoregion. We provide data on more than 200 species, which are not yet included in the TRY database....
Article
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Epipactis tallosii is considered as one of the highly threatened European orchid species due to its local distribution and small isolated populations that are characterized by decreasing trends. The species is now enlisted in the endangered (EN) category of the Red List. Nevertheless, during the last decade, multiple new populations of the species...
Data
Electronic supplement to: Süveges K., Löki V., Lovas-Kiss Á., Ljubka T., Fekete R., Takács A., Vincze O., Lukács B. A. & Molnár V. A. 2019: From European priority species to characteristic apophyte: Epipactis tallosii (Orchidaceae).-Willdenowia 49: 401-409. doi: https://doi.org/10.3372/wi.49.49310 Appendix 1. Locations, main characteristics and or...
Article
Full-text available
Azerbajdzsánról ma kapásból a gazdag szénhidrogénkészletek és néhány politikai manőver juthat az eszünkbe. Ugyanakkor az ország - éppen a gazdag kőolaj-és földgázkészleteinek köszönhetően - a nyugati típusú fejlődés útjára lépett, ám a vidéki Azerbajdzsán máig fenntartható, zömében önnfenntartó módon gazdálkodik természeti kincseivel. Bár Baku felh...
Article
Full-text available
Several important habitats have become threatened in the last few centuries in the Mediterranean Basin due to major changes adopted in land‐use practices. The consequent loss of natural and seminatural orchid habitats leads to the appreciation of small anthropogenic habitats, such as cemeteries and roadside verges. Colonization of cemeteries and ro...
Article
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During the past centuries human-induced land use changes resulted in a considerable loss of natural habitats worldwide. In transformed landscapes historical burial places such as cemeteries and churchyards can have the potential for biodiversity conservation. In our review we aimed at evaluating the conservation role of these sites and at revealing...
Article
Full-text available
In the face of worldwide habitat loss, the role of human-shaped habitats in conserving biodiversity is becoming increasingly important. Due to their special cultural role, cemeteries can preserve parts of the native vegetation when the surrounding landscape becomes degraded. However, these special refuges are threatened by human encroachment and ch...
Cover Page
Full-text available
Front and back cover of the book entitled "Life after death. Wildlife of cemeteries".
Book
Cemeteries are mostly perceived as undisturbed places where we can remember the deceased loved ones. From another perspective, they also represent historical and cultural values throughout the world. It has only recently been demonstrated that cemeteries are home to signifcant natural values, of which we have very little knowledge in general, and t...
Research
Full-text available
Maps connecting to the book entitled "Life after death. Wildlife of cemeteries".
Article
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Despite huge habitat losses caused by agricultural intensification, dry grasslands still represent one of the most diverse ecosystems in Europe. Their highly fragmented remnants are often preserved in man-made or human-influenced habitats (e.g., kurgans, roadside verges or cemeteries). In recent decades the significance of cemeteries as suitable ha...
Article
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Disappearing botanical and cultural heritage of wooden headboard-graveyards in Eastern-Hungary and Transylvania (Romania) Degradation or disappearance of natural habitats are global phenomena nowadays, hence the role of small and secondary (seminatural) habitats like cemeteries in preserving natural values are more and more appreciated. The botani...
Article
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Harvest of orchid tubers for salep production is widespread in southwestern Asia and the Balkans and constitutes a major conservation risk for wild orchid populations. Synanthropic habitats, such as graveyards, are important refuges for orchids and other organisms and could offer protection from salep harvesting because of their special cultural ro...
Article
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Alterations in traditional land use practices have led to severe declines in the area of semi-natural grasslands, thereby seriously threatening plant and animal species dependent on these habitats. Small anthropogenic managed habitats, like roadsides can act as refuges and might play an important role in conserving these species. Colonization of ro...
Article
Full-text available
1. Cephalanthera damasonium (Mill.) Druce a Budai Arborétumban 2. Opuntia phaeacantha Engelm. a Nyugat-Dunántúlon 3. Yucca filamentosa L. a Dél-Nyírségben 4. A Rochel-törpezanót (Chamaecytisus rochelii (Wierzb.) Rothm.) két újabb előfordulása az Alföldön, és néhány régi adatának pontosítása 5. Abajdóc nyír (Betula ×rhombifolia Tausch.) a Mátra közp...
Article
Full-text available
The paper introduces the herbarium of Eötvös Loránd University (BPU), currently stored at the Botanical Garden of the University, according to its state in the year 2013. The BPU herbarium consists of ca. 16 000 specimens the relevant data of which have been organised into an OpenOffice Calc spreadsheet database. The specimens were collected in 16...
Article
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p> Sustainable (and adaptive) management of natural resources is usually based on long term local experiences with nature. Local traditional communities often possess rich ecological knowledge connected to nature and traditional resource use and management. This knowledge can provide unexpected new information for researchers, and show new opportun...
Article
Elatine gussonei (Sommier) Brullo et al. is a rare freshwater plant previously assumed to be endemic to Lampedusa and the Maltase archipelago. Taxonomic uncertainties within the Elatine genus may have caused E. gussonei populations to be overlooked in the Mediterranean region. To clarify the distribution of E. gussonei, we reviewed Elatine specimen...
Article
Full-text available
Spiraea crenata was categorised as a species extinct from Hungary at the end of the 20 th century. This steppe-relic species was rediscovered in 2000 in a rural graveyard (Pusztamonostor). As a result of our recent survey of 294 Pannonian graveyards, we found further 12 localities of S. crenata. We also found 27 populations of further protected pla...
Article
Full-text available
Graveyards are unique habitats and well-known as refugia for many organisms, as traditional habitat management of graveyards lends them serious conservational value. However, the impact of religious affiliation to the natural values of graveyards has not been evaluated yet, although religion can have an impact on them through different habits and m...
Article
Full-text available
Graveyards are unique habitats and well-known as refugia for many organisms, as traditional habitat management of graveyards lends them serious conservational value. However, the impact of religious affiliation to the natural values of graveyards has not been evaluated yet, although religion can have an impact on them through different habits and m...
Article
Full-text available
This is the sixth of a series of miscellaneous contributions, by various authors, where hitherto unpublished data relevant to both the Med-Checklist and the Euro+Med (or Sisyphus) projects are presented. This instalment deals with the families Amaranthaceae, Asparagaceae (incl. Hyacinthaceae), Callitrichaceae (Plantaginaceae s.l.), Caryophyllaceae,...
Article
Full-text available
Közleményünk célja a Magyarország edényes növényfajainak elterjedési atlasza térképeinek kiegészítése, főként aktuális előfordulási adatokkal. Összesen 297 edényes taxon előfordulási adatait közöljük az ország egész területéről, mintegy 247 flóratérképezési negyed-kvadrátból. Az adatok között a ritkább taxonok (például Armoracia macrocarpa (Waldst....
Article
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A temetőkre az elmúlás és az emlékezés helyszíneként tekintünk, amelyek tájképi, történeti és kulturális értéket is képviselnek, de az csak az utóbbi időben derült ki, hogy több különböző földrészen is otthont adnak jelentős természeti értékeknek. Az elmúlt években több mint hétszáz temetőben jártunk a Kárpát-medencében ritka és veszélyeztetett növ...
Article
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New chorological data are presented for the rare and poorly known ephemeral wetland specialists Elatine macropoda and E. alsinastrum from Çanakkale Province (western Turkey). Th e former species was hitherto known only from a single Turkish locality in İzmir Province, and the latter was reported only from Edirne, Denizli and Kars Provinces. Th e ha...
Article
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Graveyards in Turkey are widely known among orchidologists as places where several orchid (Orchidaceae) taxa can be found, including some very rare and localized ones. Graveyards are less strongly affected by landscape-altering human activities than other habitats because of their special cultural roles and religious privileges. In this study we pe...
Article
Full-text available
The paper introduces the " Zoltán Siroki Herbarium " (on the basis of the MS Excel spreadsheet database of the collection) which is a separate section within the Herbarium of Debrecen University (DE). The Zoltán Siroki Herbarium consists of ca. 20 000 specimens from almost all European countries, but mainly from the historical territory of Hungary....
Article
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Pollination crisis (the decline of pollinator populations) is a global phenomenon which threatens biodiversity, human welfare and economy. The degree to which different plant populations/species are affected by pollination crisis is still unclear. In this study, long-term herbarium dataset was used to quantify the reproduction rate of Hungarian orc...
Article
Full-text available
1. A Lycopodium clavatum L. előfordulása az Egri-Bükkalján2. Néhány adat Debrecen urbán-flórájához 3. Kiegészítések a Magyarország orchideáinak atlasza elterjedési adataihoz4. Sisyrinchium bermudiana L. új előfordulási adata a Kárpát-medencében5. A légyfogó (Myagrum perfoliatum L.) előfordulása Mezőberény mellett
Article
Full-text available
The paper introduces the herbarium of Debrecen University (DE). All specimens of the herbarium were documented by digital photographs, and all data from the labels were entered into an Excel spreadsheet. The largest collection of Herbarium DE, the "Soó Rezső Herbarium" (abbreviation: SRH) consists of ca. 38.000 specimens from almost all European co...

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Projects

Projects (4)
Project
We aim to study different aspects of plant ecology, including plant invasions and ethnobotany. One of the most important but less recognized source of information is the knowledge of citizens (non-professionals). Their knowledge may be useful in understanding invasion processes, however, we have to study plant ecology and invasion related characteristics in parallel.
Project
Orchidaceae are a diverse and widespread family of flowering plants. Along with the Asteraceae, they are one of the two largest families of flowering plants. The Orchidaceae have about 25,000 currently accepted species, distributed in ca. 750 genera. Many species of this charismatic group are of key conservation importance. European terrestrial orchids are ideal for studying the effects of pollination mode on flowering phenology, because, although they are mainly self-compatible, they maintain diverse pollination modes: many of them are self-pollinating (including obligate and facultative inbreeders), others reward pollinators with nectar and approximately one-third of the species use various forms of floral deception.
Project
On the one hand, parallel with the decline of interest in taxonomic and systematic studies, some scientists and decision makers have questioned over the last 25 years the importance of biological collections, considering mostly budget limitations. On the other hand, dried and pressed plant specimens stored in biological collections are being used as never before in wide range of scientific researches. Herbaria contain long-term data for a wide range of taxa and provide unique opportunities to evaluate for example the importance of life-history components in driving species-specific responses to climate change. Our aim is to create databases of Hungarian vascular plant collections, including the main attributes of each herbarium specimen, accompanied by digital photos, which may be useful for floristic research or even “new type herbarium utilization” in the near future.