Prirodnjacki Muzej Crne Gore

The importance of temperature for the biology and ecology of reptiles is well known. In temperate regions where temperatures fluctuate on a daily and seasonal basis, reptiles must respond appropriately to maintain body temperatures that enable activity. In this study, we describe temporal changes in the thermal environment from January to December in Montenegro and the impact on two species of reptile, Hermann’s tortoise, Testudo hermanni, and the large, legless lizard Pseudopus apodus. These reptiles differ in morphology and diet and have a long phylogenetic separation but experience the same thermal environment. To give insight into any impact of these factors on their thermal ecology we calculated monthly thermoregulatory efficiency indexes derived from field body temperatures, set point temperatures—defined as the preferred body temperatures, and temperatures of null models. The results indicated that both species exhibited high thermoregulatory efficiency, with T. hermanni showing the highest levels across the active year and also maintaining higher body temperatures than P. apodus potentially reflecting the dietary and lifestyle differences. During the hottest months, body temperatures of T. hermanni frequently exceeded the set point range but were not exceeded by P. apodus at any time. Microhabitat patches of closely situated sunlight and shaded areas were the most frequently selected patches in both species, with T. hermanni spending greater amounts of time in shaded patches compared to P. apodus. The efficiency indexes, together with data on microhabitat selection, indicated both species moved non-randomly through the environment, selecting appropriate habitat patches and maintaining body temperatures close to the set point range whilst avoiding the dangerously high body temperatures that occur during the hotter months. During the winter months from November to February, the second and third quartiles of the model temperatures fell below the set point range temperatures of both species. This corresponded with their dormant period. In general, the results emphasise the importance of habitat diversity and integrity in reptile ecology and for their conservation.

We present an overview of wildlife-vehicle collision (WVC) liability covering 36 European countries. We reviewed approaches to WVC liability which are currently in effect across Europe and their potential consequences for WVC reporting. To obtain relevant information, we conducted a survey, including a web-based questionnaire. We retrieved answers to questions related to human fatalities from WVC, the existence of WVC databases, roadkill data systems and recommendation for drivers in the event of WVC. In 19 countries, no one is liable when a motorized vehicle collides with a wild animal. In the remaining countries, road managers or road owners may be liable as well as drivers or hunters, either consistently or under certain conditions. Liability can, in some countries, be changed after a legal assessment. Human fatalities due to WVCs have been reported in 27 countries, with approximately 90 deaths annually across European roads. The number of injured people and estimates of socio-economic losses were not possible to obtain at a European level as many countries lack reliable databases. We discuss how existing WVC liability across countries provoke some actors to transfer liability to another actor or avoid reporting these incidents altogether. WVC underreporting in certain national databases is one of the consequences of the existing WVC liability rules in the given countries. This fact reduces the potential to identify hotspots and define appropriate mitigation measures. In conclusion, we propose several procedures for modifying WVC liability that could enhance wildlife protection and road safety.

Abstract Avian influenza, commonly known as bird flu, is a highly infectious viral disease that affects birds, including wild water birds and poultry. The emergence and spread of highly pathogenic avian influenza (HPAI) strains, such as H5N1, have raised concerns due to their potential to cause severe outbreaks and cross the species barrier, leading to human infections and global public health emergencies. In this study, we report the first case of HPAI H5N1 detection in Montenegro. Twenty-six carcasses of dalmatian pelicans were found in Skadar Lake, Montenegro, and the H5N1 subtype was confirmed through molecular testing in the samples from pelicans. The whole influenza genome was sequenced and belonging to clade 2.3.4.4b was determined.

Ancient DNA research in the past decade has revealed that European population structure changed dramatically in the prehistoric period (14,000-3000 years before present, YBP), reflecting the widespread introduction of Neolithic farmer and Bronze Age Steppe ancestries. However, little is known about how population structure changed from the historical period onward (3000 YBP - present). To address this, we collected whole genomes from 204 individuals from Europe and the Mediterranean, many of which are the first historical period genomes from their region (e.g. Armenia and France). We found that most regions show remarkable inter-individual heterogeneity. At least 7% of historical individuals carry ancestry uncommon in the region where they were sampled, some indicating cross-Mediterranean contacts. Despite this high level of mobility, overall population structure across western Eurasia is relatively stable through the historical period up to the present, mirroring geography. We show that, under standard population genetics models with local panmixia, the observed level of dispersal would lead to a collapse of population structure. Persistent population structure thus suggests a lower effective migration rate than indicated by the observed dispersal. We hypothesize that this phenomenon can be explained by extensive transient dispersal arising from drastically improved transportation networks and the Roman Empire's mobilization of people for trade, labor, and military. This work highlights the utility of ancient DNA in elucidating finer scale human population dynamics in recent history.

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More than hundred specimens of problematic or taxonomically re-evaluated taxa were revised in the Bryophyte Herbarium of the Hungarian Natural History Museum, Budapest (BP) and in the herbarium of P. Erzberger, Botanic Garden and Botanical Museum Berlin Dahlem (B). As result two species (Lophozia silvicola, Ulota interm edia) can be added to the Montenegrin bryophyte flora and one species (Brachythecium tenuicale) should be deleted. The recent distribution of several taxa of conservation interest was clarified, e. g. rarities like Neckera pumila, Ulota bruchii or genera potentially threatened due to climate change like Philonotis and Timmia. The results are important contributions to the preparation of an updated checklist and red list of the Montenegrin bryoflora.

International audience

Biological assessment metrics and water chemistry measurements are used to quantify the link between stressors and their effects on lake ecosystems, for the Water Framework Directive. However, correlations between metrics and water chemistry are often poor. This is seen as major weaknesses of Water Framework Directive-related monitoring and assessment. We analyzed macrophytes, benthic algae, benthic macroinvertebrates, water chemistry and sediment total phosphorus content in the littoral of six lakes in the Western Balkans and used CORINE land use data to estimate nutrient enrichment via runoff from the adjacent land. Lakes with a higher estimated phosphorus runoff from the adjacent land did not have higher littoral water nutrient concentrations, but littoral diatom assemblages indicated more eutrophic conditions. These lakes also had higher abundances of littoral benthic primary producers, which in turn were associated with low concentrations of dissolved nutrients, but only in autumn, not in spring. This is consistent with primary producers taking up nutrients during the summer growth season. In lakes with high abundances of benthic primary producers, it is likely that the littoral vegetation plays a large role in the transfer of nutrients from the water to the benthos. This process impairs correlations between biological metrics and water nutrient concentrations. Our results suggest that CORINE land cover may be more useful to characterize littoral nutrient enrichment than lake water chemistry. Increased benthic primary producer biomasses and “eutrophic” diatom indices may indicate littoral nutrient enrichment even if water nutrient concentrations are low.

This paper analyses demographic trends and population decline of the rural area surrounding Niksic, Montenegro, from the second half of the 20th century to the first two decades of the 21st century. After World War II, industry in Niksic began to develop strongly. A large number of state enterprises started to operate, and the consequent industrialisation and improved living conditions triggered a wave of migration from the surrounding rural areas to Niksic. The paper describes the depopulation of rural areas and the causes and consequences of migration within the Municipality of Niksic based on an analysis of population movement and density, the rural and urban populations, and the age structure of the population. Transformations of the economy after 1990 indicate that the neglect of agriculture and the destruction of agricultural land are mistakes that will prove difficult to correct. The results of our research reveal that, today, revitalisation of the countryside is only possible if non-agricultural activities are brought to the area centres and the quality of life is improved in the villages, which would reduce unemployment in the city. A solid traffic infrastructure between individual settlements and their connection with the city is also necessary. Between 2003 and 2011, the agricultural population increased by 1.2%, which gives hope because agriculture is now being recognised as significant, and a movement for changing the inherited negative perception of it is being created. This research is addressed to the state and municipal administrations of the region with the message to implement responsible and timely measures to revitalise the countryside and stop the extinction of the villages.