Records on sheltered dogs were collected from 3 municipal dog shelters situated in different regions of the Czech Republic from 2010 to 2013. A total of 3,875 dogs were analyzed in this study. Among these, 1,614 dogs were subsequently reclaimed (lost dogs) and 2,261 dogs were abandoned and offered for adoption. The ratio of purebred dogs and crossbred dogs differed significantly when comparing lost (66.4% vs. 33.6%) and abandoned dogs (35.0% vs. 65.0%). The median time until lost dogs were reclaimed was 1 day, and it was not affected by purebred status. The median time until abandoned dogs were adopted was 23 days. In abandoned dogs, purebred status had a significant effect on the time the dog spent at the shelter before adoption. The median time until adoption for crossbred dogs was 27 days, whereas the median time until adoption for purebred dogs was 19 days. The breed group influenced the length of stay (LOS) in abandoned dogs. Small companion dogs had the shortest LOS (median = 15 days) and guard dogs had the longest LOS (median = 25 days).

• Klíčová slova
• adoption, dog, purebred status, shelter, stray,
• MeSH
• bydlení zvířat MeSH
• časové faktory MeSH
• druhová specificita MeSH
• pohoda zvířat statistika a číselné údaje   MeSH
• psi * MeSH
• zvířata MeSH
• Check Tag
• psi * MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Česká republika MeSH

With ongoing insect declines, species expanding in distribution and abundance deserve attention, as understanding their success may help design conservation strategies for less successful species. Common causes of these successes include warmer climates, novel resources, and exploiting land use change, including land abandonment. These factors affect the nymphalid butterfly Neptis rivularis, developing on Spiraea spp. shrubs and reaching the north-western limits of its trans-Palearctic distribution in Central Europe. We combined mark-recapture, behaviour analysis, and distribution modelling to study N. rivularis in wetlands of the Třeboňsko Protected Landscape (IUCN category V). The long-living adults (up to 4 weeks) spent a considerable amount of time searching for partners, ovipositing and nectaring at Spiraea shrubs, alternating this with stays in tree crowns, where they located cool shelters, spent nights, and presumably fed on honeydew. They formed high-density populations (310 adults/ha), exploiting high host plant abundance. They adhered to floodplains and to conditions of relatively mild winters. The ongoing Spiraea encroachment of abandoned alluvial grasslands is, thus, a transient situation, ultimately followed by forest encroachment. Rewilding the habitats by introducing native ungulates presents an opportunity to restore the disturbance regime of the sites. The increased resource supply combined with a warming climate has opened up temperate Europe to colonization by N. rivularis.

• Klíčová slova
• Behaviour, Climate, Expanding species, Habitat modelling, Lepidoptera conservation, Mark-recapture, Nymphalidae: Neptini, Riverine floodplain,
• MeSH
• mokřady * MeSH
• motýli * fyziologie   MeSH
• zvířata MeSH
• Check Tag
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Česká republika MeSH

The distribution of mercury species was studied in all aquatic ecosystem components (i.e., water, sediment, emergent aquatic plants, invertebrates and omnivorous and piscivorous fish) of the Záskalská water reservoir (Central Bohemia, Czech Republic) which is in the vicinity of an abandoned cinnabar mine. The results indicate that the transport of mercury from the cinnabar mine is the major source of mercury in the Záskalská reservoir. The legal maximum limit (0.07 μg/L) for total mercury concentration in water samples was exceeded only during rainy periods. The total mercury concentration in the surface sediments was in the range from 0.22 to 9.19 mg/kg in dry matter (up to 0.2% CH3Hg+) and was sample site-specific. The dominant form of mercury in sediments was mercury sulphide (22.9-79.2%). The emergent macrophytes accumulated mercury primarily by the roots from sediments, and no significant translocation of mercury to leaves was observed. The legal maximum limit for mercury content in fish muscle (0.5 mg/kg in the fresh matter) was exceeded up to 4.48 times for piscivorous fish. Hazard index values indicate a health risk concern for children and for people consuming more than 100 g of fish muscle per day. Our results emphasise the need to implement legal restrictions on the consumption of piscivorous fish caught in ecosystems downstream of abandoned cinnabar mines.

• Klíčová slova
• Aquatic ecosystem, Bioaccumulation, Hazard index, Mercury bioavailability, Mine waste,
• MeSH
• chemické látky znečišťující vodu * analýza   MeSH
• ekosystém MeSH
• lidé MeSH
• monitorování životního prostředí MeSH
• rtuť * analýza   MeSH
• ryby MeSH
• sladká voda MeSH
• sloučeniny rtuti MeSH
• voda MeSH
• zvířata MeSH
• Check Tag
• lidé MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Česká republika MeSH
• Názvy látek
• chemické látky znečišťující vodu * MeSH
• cinnabar MeSH Prohlížeč
• rtuť * MeSH
• sloučeniny rtuti MeSH
• voda MeSH

Abandoned military training areas are recognized as biodiversity hotspots. Here, threatened species benefit from low nutrient levels and a heterogeneous habitat mosaic that includes early successional stages created by military training activities. However, after abandonment, these areas are encroached by forest, and their conservation value may be lost without active management. Management can be approached in various ways, and it is important to determine which strategies are most beneficial for biodiversity. Here, we conducted a large-scale survey of vascular plants, grasshoppers, butterflies, and birds in more than 40 abandoned military training areas across Czechia, a country in Central Europe. We tested the responses of each taxon, as well as multitaxonomic diversity, to six management types: woody plant cutting, mowing for agriculture, mowing for conservation, grazing for agriculture, grazing for conservation, and vehicle rides. After accounting for spatial autocorrelation, we found that vehicle rides were the only management type positively related to the multitaxonomic diversity of threatened species. Additionally, it supported the abundance of threatened birds and the total species richness of grasshoppers. Although other management options also showed conservation benefits for some taxa (e.g., woody plant cutting for threatened grasshoppers), none had such a broad positive impact across taxa, and some had opposing effects (e.g., grazing for conservation benefited threatened butterflies but negatively affected threatened grasshoppers). While management decisions must always be tailored to local goals and conditions, we propose vehicle rides as a promising tool for managing biodiversity-rich areas where threatened species depend on early successional stages.

• Klíčová slova
• Biodiversity, Conservation management, Extinction risk, Farmland, Mutitaxonomic diversity, Open habitat, Vehicle ride,
• MeSH
• biodiverzita * MeSH
• ekosystém MeSH
• kobylky MeSH
• motýli MeSH
• ohrožené druhy * MeSH
• ptáci MeSH
• zachování přírodních zdrojů * metody   MeSH
• zemědělství MeSH
• zvířata MeSH
• Check Tag
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Česká republika MeSH

Military training generates frequent and irregular disturbance followed by succession, resulting in fine-scaled mosaics of ecological conditions in military training areas (MTAs). The awareness that MTAs may represent important biodiversity sanctuaries is increasing recently. Concurrently, changes in military doctrine are leading to abandonment of many MTAs, which are being brought under civilian administration and opened for development. We surveyed vascular plants in 43 and butterflies in 41 MTAs in the Czech Republic and compared the records with plants and butterfly records from 301 and 125 nature reserves, respectively. After controlling for effects of area, geography, and climate, we found that plant species richness was equal in the two land use categories; butterfly richness was higher in MTAs; reserves hosted more endangered plants and more endangered butterflies. Ordination analyses, again controlled for potential nuisance effects, showed that MTAs and reserves differed also in species composition. While specialist species of nationally rarest habitat types inclined towards the reserves, MTAs hosted a high representation of endangered species depending on either disturbed ground, or successionaly transient conditions. These patterns reflect the history of the national nature reserves network, and the disturbance-succession dynamics within MTAs. The conservation value of formerly army-used lands is increasingly threatened by abandonment, and conservationists should support either alternative uses mimicking army activities, or sustainable management regimes.

• MeSH
• biodiverzita * MeSH
• druhová specificita MeSH
• monitorování životního prostředí metody   MeSH
• motýli klasifikace   růst a vývoj   MeSH
• ohrožené druhy MeSH
• populační dynamika MeSH
• regresní analýza MeSH
• stromy klasifikace   růst a vývoj   MeSH
• vojenská zařízení * MeSH
• zachování přírodních zdrojů metody   MeSH
• zeměpis MeSH
• zvířata MeSH
• Check Tag
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Geografické názvy
• Česká republika MeSH

Awareness of the causes of mortality in shelter cats can contribute to its effective reduction. The aim of this study was to investigate the causes of mortality in cat shelters in the Czech Republic, taking into account the age of the animals and their length of stay in the shelter facilities until natural death or euthanasia. A cooperation with two private no-kill shelters in the Czech Republic was established. The subject of the study were records of 3047 cats admitted to the selected shelters in the period from 2013 to 2023. A total of 357 (11.7 %) out of 3047 cats died or had to be euthanized in two monitored shelters. No significant difference (p > 0.05) in the cat mortality was found between the two shelters (11.5 % and 12 %). The median length of stay of cats in the shelter until death or euthanasia was 23 days. The highest mortality was recorded in the youngest cats (≤ 6 months). The most common causes of death or euthanasia of cats in both shelters were feline infectious peritonitis (21.6 %), panleukopenia (18.5 %) and upper and lower respiratory tract infections (17.5 %). Adult and older cats were significantly (p < 0.05) more prone to death due to renal failure and cancer than young animals and kittens. The results of the study contribute to the knowledge on the health of cat population in shelters in the Czech Republic and can serve as a basis for further work that will target mortality reduction strategies in at-risk categories.

• Klíčová slova
• Abandoned animal, Death rate, Shelter, Stray animal,
• Publikační typ
• časopisecké články MeSH

BACKGROUND: A cytogenetic analysis of the new local triploid population of the caryophyllidean tapeworm Atractolytocestus huronensis, a unique parthenogenetic species with the ability to colonise new regions, was performed to understand the inner structure of its chromosome complement. METHODS: A karyotype analysis was carried out using classical Giemsa staining and C-banding combined with fluorescent DAPI staining. A hypothesis that triplets are composed from three homologue chromosomes of approximately the same length and same centromere position was tested statistically for multiple dependent variables using a non-parametric Friedman's ANOVA. The chromosomal location of ribosomal DNA clusters within the nucleolar organization region (NORs) and telomeric (TTAGGG)n sequences were detected by fluorescent in situ hybridization (FISH). Chromosomes were subjected to AgNO3 staining in order to determine whether the rDNA sites represent active NORs. RESULTS: The cytogenetic analysis confirmed the karyotype composed from eight chromosome triplets (3n = 24) as well as the existence of a pair of NORs located on each chromosome of the second triplet. Six NORs varied their activity from cell to cell, and it was reflected in the numbers of nucleoli (from 1 to 5). A huge morphological diversification of homologue chromosomes was originally detected in six out of eight triplets; the homologue elements differed significantly either in length and/or morphology, and some of them carried discernible interstitial telomeric sequences (ITSs), while the end telomeres were minute. The heterochromatin bands with high AT content varied irregularly, and the course of aberrant spermatogenesis was evident. CONCLUSIONS: Diversification of homologues is a unique phenomenon very likely caused by the long-term absence of a recombination and consequential accumulation of chromosome rearrangements in the genome of A. huronensis during species evolution. Unalterable asexual reproduction of the tapeworm, along with international trade in its host (carp), is facilitating its ongoing spread.

• Klíčová slova
• Aberrant meiosis, Cestoda, Diversification of homologues, Interstitial telomere sequences (ITSs), Polyploidy,
• MeSH
• Cestoda klasifikace   genetika   fyziologie   MeSH
• chromozomy MeSH
• kapři parazitologie   MeSH
• karyotypizace MeSH
• nemoci ryb parazitologie   MeSH
• rozmnožování MeSH
• spermatocyty cytologie   MeSH
• triploidie MeSH
• zvířata MeSH
• Check Tag
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH

Agricultural land abandonment is recognized as a major environmental threat in Europe, being particularly pronounced in south-eastern Europe, where knowledge on its effects is limited. Taking the Balkan Peninsula as a case study, we investigated agricultural abandonment impact on passerine communities at regional level. We set up a standard methodology for site selection (70 sites) and data collection, along a well-defined forest-encroachment gradient that reflects land abandonment in four countries: Albania, Bulgaria, Croatia and Greece. Regardless the different socio-economic and political histories in the Balkans that led to diverse land abandonment patterns in space and time, rural abandonment had a consistent negative effect on bird communities, while regional-level analysis revealed patterns that were hidden at local level. The general trends were an increase of forest-dwelling bird species at the expense of farmland birds, the decline of overall bird species richness, as well as the decline of Species of European Conservation Concern (SPECs) richness and abundance. Many farmland bird species declined with land abandonment, whereas few forest species benefited from the process. In conclusion, our results support CAP towards hampering rural land abandonment and preserving semi-open rural mosaics in remote upland areas, using a suite of management measures carefully tailored to local needs. The maintenance of traditional rural landscapes should be prioritized in the Balkans, through the timely identification of HNV farmland that is most prone to abandonment. We also suggest that coordinated transnational research is needed, for a better assessment of conservation options in remote rural landscapes at European scale, including the enhancement of wild grazers' populations as an alternative in areas where traditional land management is rather unlikely to be re-established.

• Klíčová slova
• Balkans, Conservation policy, Forest encroachment, High nature value farmland, Passerine birds, Rural abandonment,
• MeSH
• biodiverzita MeSH
• lesy MeSH
• ptáci * MeSH
• zachování přírodních zdrojů MeSH
• zemědělství * MeSH
• životní prostředí * MeSH
• zvířata MeSH
• Check Tag
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Geografické názvy
• Albánie MeSH
• Bulharsko MeSH
• Chorvatsko MeSH
• Evropa MeSH
• Řecko MeSH
• východní Evropa MeSH

At any moment, there are millions of cats housed in foster care facilities for abandoned and stray animals for various reasons worldwide. Care, management and regulation among these facilities differ. Moreover, shelters can never substitute the full comfort of a good home for the animal, and the welfare of cats in shelters is a subject of discussion in many respects. Cats are animals sensitive to changes; for most of them, placement in a shelter is a stressful experience because of changes in routine, environment and the presence of other animals. Stress is reflected in changes in behaviour, causes fluctuations in physiological values and disrupts the immune system, which is a predisposition to the development or reactivation of disease. Evaluation of the presence and intensity of negative impacts is possible through the use of evaluation tools based on indicators that help set the environment and management of keeping so as to disrupt the quality of life as little as possible. Although a comprehensive and valid welfare tool that would evaluate animal-based and at the same time resource-based (or management-based) indicators of cats in shelters is not currently available, it is possible to use partial evaluation of individual welfare indicators to assess welfare. This review aims to provide the readers with an insight into current options of assessment of the welfare of cats in shelters with an emphasis on behavioural, physiological and health indicators with an application in both practical and scientific contexts.

• Klíčová slova
• animal-based measures, assessment, cats, shelters, welfare,
• Publikační typ
• časopisecké články MeSH
• přehledy MeSH

Animal protection, which also comprises the subject of abandoned and stray animals, has become a pressing and widely discussed topic. The aim of this study was to compare dogs and cats from two shelters in a selected region of the Czech Republic, based on factors that affect the length of stay. The following factors were analyzed: outcome, sex, age, and purebred status. A total of 419 cats and 2580 dogs housed in the monitored shelters from 2013 to 2016 were included in the analysis. The results show that dogs (n = 1343; 52.1%) are returned to their owners significantly more often (p < 0.001) than cats (n = 10; 2.4%). Dogs stayed in the shelter significantly (p < 0.001) less time than cats regardless of the outcome (the median length of stay of dogs were 3 days, while that of cats was 51 days). Also the length of stay in the shelter until adoption is shorter in dogs than in cats (dogs: median 27 days; cats: median 53 days). Median length of stay tended to increase with the increasing age in both species. Monitored age categories of dogs and cats differed significantly (p < 0.05) in their median length of stay (LOS) until adoption. We found that purebred status does not affect the length of stay in the shelter until adoption, either in dogs or in cats. Overall, our results suggest that dogs are preferred over cats in the Czech Republic. Shelter operators should take into account this aspect affecting animal adoption. By targeted efforts and education of public, it is possible to mitigate the negative effects of favoring a certain category of animals over others.

• Klíčová slova
• adoption, animal rescue, canine, feline, length of stay,
• Publikační typ
• časopisecké články MeSH