Viktor Demchenko
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View article: ICHTHYOFAUNA OF THE «BILOBEREZZHYA SVIATOSLAVA» NATIONAL NATURE PARK AND THE ASSESSMENT OF ITS AQUATIC AREAS' ROLE IN THE CONSERVATION OF BLACK SEA REGION FISH
ICHTHYOFAUNA OF THE «BILOBEREZZHYA SVIATOSLAVA» NATIONAL NATURE PARK AND THE ASSESSMENT OF ITS AQUATIC AREAS' ROLE IN THE CONSERVATION OF BLACK SEA REGION FISH Open
The «Biloberezzhya Sviatoslava» National Nature Park (NNP) is a significant protected area in the Black Sea region. The contemporary ichthyofauna of the Park's aquatic areas includes 89 fish species from 42 families. The highest species di…
View article: Assessment of the Lake Kartal (Danube Delta, Ukraine) Fish Assemblage Using Invasive and Non-invasive Methods
Assessment of the Lake Kartal (Danube Delta, Ukraine) Fish Assemblage Using Invasive and Non-invasive Methods Open
The aim of this study was to describe the fish assemblage of Lake Kartal, a Natural Protected Area in the Ukrainian Danube delta, using both invasive (multimesh gillnets) and non-invasive (eDNA metabarcoding) methods. This is the first ich…
View article: The parasites of a successful invader: monogeneans of the Asian topmouth gudgeon <i>Pseudorasbora parva</i>, with description of a new species of <i>Gyrodactylus</i>
The parasites of a successful invader: monogeneans of the Asian topmouth gudgeon <i>Pseudorasbora parva</i>, with description of a new species of <i>Gyrodactylus</i> Open
Monogenean parasites are often co-introduced with their fish hosts into novel areas. This study confirmed co-introduction of two dactylogyrids, Dactylogyrus squameus Gusev, 1955 and Bivaginogyrus obscurus (Gusev, 1955), and a newly describ…
View article: Parasite communities and genetic structure of non-native pumpkinseed,<i>Lepomis gibbosus</i>, in different Black Sea drainages of Ukraine
Parasite communities and genetic structure of non-native pumpkinseed,<i>Lepomis gibbosus</i>, in different Black Sea drainages of Ukraine Open
In recent years, pumpkinseed Lepomis gibbosus (Actinopterygii: Centrarchidae) have spread intensively to many parts of Europe, including Ukraine. In this study, we (1) assess intra-population genetic variability in five widely-spaced Ukrai…
View article: Alien fish species of Atlantic–Mediterranean origin in the Sea of Azov within the waters of Ukraine (a review for the last 50 years)
Alien fish species of Atlantic–Mediterranean origin in the Sea of Azov within the waters of Ukraine (a review for the last 50 years) Open
The article is devoted to alien fish species that have appeared over the past 50 years off the coast of Ukraine in the Sea of Azov. The coastal waters of the Sea of Azov are analysed within the waters of Ukraine from Cape Tarkhan of the Ke…
View article: Integrative ecological management of coastal marine and limans ecosystems of Ukraine
Integrative ecological management of coastal marine and limans ecosystems of Ukraine Open
Based on the experience of managing coastal marine, and limans ecosystems of Ukraine, the theoretical scheme of Integrative Ecological Management is considered. The scheme includes the “Basic Diagnostic” block for which the key tools are: …
View article: Differences in spatial versus temporal reaction norms for spring and autumn phenological events
Differences in spatial versus temporal reaction norms for spring and autumn phenological events Open
Significance To do the right thing at the right time, organisms need to glean cues from their environment. How they respond can then be described by reaction norms, i.e., by the relationship between the phenotype expressed (the phenology o…
View article: Chronicles of Nature Calendar, a Long-term and Large-scale Multitaxon Database on Phenology
Chronicles of Nature Calendar, a Long-term and Large-scale Multitaxon Database on Phenology Open
We present an extensive, large-scale, long-term and multitaxon database on phenological and climatic variation, involving 506,186 observation dates acquired in 471 localities in Russian Federation, Ukraine, Uzbekistan, Belarus and Kyrgyzst…
View article: Chronicles of Nature Calendar, a Long-term and Large-scale Multitaxon Database on Phenology
Chronicles of Nature Calendar, a Long-term and Large-scale Multitaxon Database on Phenology Open
We present an extensive, large-scale, long-term and multitaxon database on phenological and climatic variation, involving 506,186 observation dates acquired in 471 localities in Russian Federation, Ukraine, Uzbekistan, Belarus and Kyrgyzst…
View article: Chronicles of Nature Calendar: A long-term and large-scale multitaxon database on phenology
Chronicles of Nature Calendar: A long-term and large-scale multitaxon database on phenology Open
We present an extensive, large-scale, long-term and multitaxon database on phenological and climatic variation, involving 506,186 observation dates acquired in 471 localities in Russian Federation, Ukraine, Uzbekistan, Belarus and Kyrgyzst…
View article: Chronicles of Nature Calendar: A long-term and large-scale multitaxon database on phenology
Chronicles of Nature Calendar: A long-term and large-scale multitaxon database on phenology Open
We present an extensive, large-scale, long-term and multitaxon database on phenological and climatic variation, involving 506,186 observation dates acquired in 471 localities in Russian Federation, Ukraine, Uzbekistan, Belarus and Kyrgyzst…
View article: Chronicles of Nature Calendar: A long-term and large-scale multitaxon database on phenology
Chronicles of Nature Calendar: A long-term and large-scale multitaxon database on phenology Open
We present an extensive, large-scale, long-term and multitaxon database on phenological and climatic variation, involving 506,186 observation dates acquired in 471 localities in Russian Federation, Ukraine, Uzbekistan, Belarus and Kyrgyzst…
View article: Fish in water bodies of the Emerald Network of Ukraine
Fish in water bodies of the Emerald Network of Ukraine Open
The paper provides information on the structure of sites of the Emerald Network of Ukraine as special areas of conservation, focused at ensuring the protection of natural fauna, flora and habitats. The development of this network was initi…
View article: Chronicles of Nature Calendar: A long-term and large-scale multitaxon database on phenology
Chronicles of Nature Calendar: A long-term and large-scale multitaxon database on phenology Open
We present a large-scale and long-term dataset that can be used to examine community-level spatial variation in phenological dynamics and its climatic drivers. The database consists of 510,165 observation dates collected in 472 localities …
View article: Chronicles of Nature Calendar: A long-term and large-scale multitaxon database on phenology
Chronicles of Nature Calendar: A long-term and large-scale multitaxon database on phenology Open
We present a large-scale and long-term dataset that can be used to examine community-level spatial variation in phenological dynamics and its climatic drivers. The database consists of 510,165 observation dates collected in 472 localities …
View article: Chronicles of Nature Calendar: A long-term and large-scale multitaxon database on phenology
Chronicles of Nature Calendar: A long-term and large-scale multitaxon database on phenology Open
We present a large-scale and long-term dataset that can be used to examine community-level spatial variation in phenological dynamics and its climatic drivers. The database consists of 510,165 observation dates collected in 472 localities …
View article: Chronicles of Nature Calendar: A long-term and large-scale multitaxon database on phenology
Chronicles of Nature Calendar: A long-term and large-scale multitaxon database on phenology Open
We present an extensive, large-scale, long-term and multitaxon database on phenological and climatic variation, involving 506,186 observation dates acquired in 471 localities in Russian Federation, Ukraine, Uzbekistan, Belarus and Kyrgyzst…
View article: The fauna of Zaporizhzhia oblast in the Red Book of Ukraine. Melitopolshchyna
The fauna of Zaporizhzhia oblast in the Red Book of Ukraine. Melitopolshchyna Open
The publication presents information on the status of rare species of animals inhabiting Zaporizhzhia оblast, some of which are found in Melitopolshchyna. The information is fully consistent with the Red Data Book of Ukraine (2009), and ea…