Caspian seal puppy. International expedition. Northern Caspian, Kazakhstan, 2019 Photo by Shumeiko N. Endangered Caspian Seal Habitat Identified in Three Important Marine Mammal Area (IMMA) Status. Caspian seals (Pusa caspica) live only in the Caspian Sea — located at the junction of Europe and Asia, the largest landlocked waterbody in the world. Caspian seals have been listed as Endangered since 2008 by the International Union for Conservation of Nature (IUCN), having declined by more than 70 % in the 20th Century, primarily as a result of unsustainable hunting for their fur and blubber. Caspian seal puppy. International expedition. Northern Caspian, Kazakhstan, 2019 Photo by Shumeiko N. The female of the Caspian seal. International expedition. Northern Caspian, Kazakhstan, 2019 Photo by Shumeiko N.

О.А. Крылович и А.Б. Савинецкий на отборе торфяника The Aleutian Islands constitute a region that attracts the attention of researchers of various specialties. In recent years, interest in the Aleutian Islands has increased further, a large number of articles have been published devoted to the study of the dynamics of climate, their flora and fauna and the history of human settlement of the islands. The article, recently published in the journal Water (MPDI), highlights the results of the work of scientists from three structural divisions of the IEE RAS (laboratory of ecology of aquatic communities and invasions, laboratory of historical ecology and laboratory of population ecology) on the study of the past ecosystems of this region. For the first time to analyze the peat deposits of one of the islands of the ridge, a new approach was applied, combining the results of classical diatom analysis and modern methods of statistical analysis. The purpose of this work was to describe the dynamics during the Holocene of the diatom community of a small reservoir located on Shemya Island and to identify the main global and local factors that determine these changes. Diatoms, whose silicon valves are perfectly preserved in millennial sediments, are good indicators of the environment and objects for paleoreconstruction. According to the results of radiocarbon dating, the formation of the deposit began at 9300 cal. years ago. The analysis of the main components made it possible to link the dynamics of the diatom community with certain ecological conditions and factors that influenced coastal ecosystems during the period of its formation.

Elsivier has published a fresh list of the world's most cited scientists, which was first presented two years ago. The rating is based on the analysis of the number of citations of articles (taking into account the order of authors and other indicators) by more than 8 million scientists on the basis of scientific publications SCOPUS. For each of the selected areas of knowledge (chemistry, economics, mathematics, biology, biomedicine, etc., 22 areas in total), 2% of the most cited scientists were included in the list of "top scientists in the world" (a total of about 190,000 thousand in all regions). One rating is presented by scientists with the highest citation rates of their articles in the last 25 years, from 1996 to 2020, the second - with indicators only for the last 2020. From Russia, the list (in all areas of knowledge) included 847 and 959 scientists, respectively, which is only 0.45% and 0.50% of the total number of "top scientists in the world." In the biology ranking for 25 years (1996-2020), there are only 9 Russians among the 7483 most cited scientists in the world (0.12%). Among them, the largest representation is by IEE RAS and M.V. Lomonosov Moscow State University - three scientists, three more organizations are represented by one scientist each. In the rating for 2020, there are three times more Russian biologists (which indicates a positive trend), although still very few: 28 out of 7800 (0.36%). They are the leaders among scientific institutions: Moscow State University. M.V. Lomonosov (6 people), IEE RAS (5 people) and the Zoological Institute RAS (3 people). Link to the list 

At the UN International Conference on Climate Change, a film about the project for the conservation and restoration of Russian swamps and a virtual tour of the “Staroselsky moss” (Старосельский мох) bog, which is located in the Central Forest Biosphere Reserve (Nelidovsky District, Tver Region), was presented. Scientists have been closely observing the “Staroselsky moss” bog for several years: they study the emission and absorption of greenhouse gases, and simulate the dynamics under conditions of climatic changes. The photographs were presented In a virtual pavilion "Peatland", as well as videos and a 3D panorama of the Central Forest Reserve, made by a researcher at the A.N. Severtsov Institute of Ecology and Evolution of RAS Dmitry Ivanov. These materials were highly appreciated by foreign experts. Related materials: KP: "The ecology will be saved by the swamp: the reserved swamp in the Tver region was estimated by the experts of Europe" 

Sofya Borisovna Rosenfeld, Ph.D., Researcher, Center for Bird Ringing of Russia, IEE RAS, took part in counting geese and brants in the Republic of Kazakhstan. The survey takes place within the international project “Life for the safe flight” of the European Union for the preservation of the red-breasted goose. On the part of the Republic of Kazakhstan, the project partner is the Association for the Conservation of Biodiversity of Kazakhstan (ACBK). For two weeks in the Kostanay region, we have been developing a popular science film with the working title "Autumn migration of geese on Lake Taldykol". The film will describe the migration of geese and brants, including more detail about the red-breasted goose, as well as the measures taken in the Republic of Kazakhstan to protect and minimize the hunting pressure on rare and hunted species of geese and brants.

The aerial stage of the "Soul of the Caspian" expedition with the purposes of research and preservation of the Caspian seal was completed on October 31 in the Astrakhan region. These are the first aerial observations of the smallest seal on earth after it was entered into the Red Book of Russia. Aviation monitoring was carried out by the Clean Seas Ecological Foundation and scientists from the IEE RAS. At the helm of the La-8 amphibious aircraft was a Hero of Russia, cosmonaut, test pilot Valery Tokarev. Takeoff and landing, and between them - an average of five hours of flight over the Caspian in search of animals. The expeditionary group of the Soul of the Caspian project spent 6 days in Astrakhan, completed 4 air routes with a total length of about 2,600 thousand kilometers, exploring an area of more than 12 thousand square kilometers. On three routes, the observers detected approximately 400 animals. Some of the seals were in the water, and most of them were on Maly Zhemchuzhny Island and in the shallows next to it. Accurate data will be obtained after computer processing of photographic materials from the monitoring complex, which is specially designed for aerial observations of marine mammals. In addition to seals, scientists detected and recorded many birds, schools of fish and, regrettably, abandoned fishing nets and numerous boats in the Dagestan part of the Caspian Sea during their flights. The research aircraft also flew over the oil platform of the Lukoil company. The area around it was clear of industrial influence.

A group of scientists from the Faculty of Biology of Moscow State University, the Koltsov Institute of Developmental Biology of the Russian Academy of Sciences and the A.N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences, with the support of the Russian Science Foundation and the Russian Foundation for Basic Research, studied how global climate change affects marine invertebrates. The appearance of marine ecosystems in recent years has undergone significant changes under the influence of global climate change and human activity. Scientists are currently studying how these factors affect biodiversity. Samples from the Barents, White and Japan Seas were taken and studied for this purpose. The research results are published in the scientific journal Invertebrate Zoology. The leading engineer of the Laboratory of Morphology and Ecology of Marine Invertebrates, Tatyana Igorevna Antokhina, took part in the research on behalf of IEE RAS.

On October 26, 2021 at 12.30 a press conference will be held at the B.M. Kustodiev Astrakhan International Airport, dedicated to the launch of the ecological project for the study and conservation of the Caspian seal "Soul of the Caspian Sea". The project was developed by the Clean Seas Foundation in cooperation with leading experts on marine mammals from the A.N. Severtsov Institute of Ecology and Evolution of Russian Academy of Sciences with the support of the Ministry of Natural Resources and Ecology of the Russian Federation. The first expedition begins this autumn. On the La-8 amphibious aircraft, the scientific and film crew will fly along the Russian coast of the Caspian Sea along preset routes. At the helm is the main pilot of all air expeditions of the Clean Seas Foundation - Hero of Russia Valery Tokarev, cosmonaut, 1st class test pilot. At the second stage, the expedition team, together with the inspectors of the Astrakhan State Nature Reserve, will go out to sea in speedboats to the island of Maliy Zhemchuzhny to install satellite transmitters on animals and take bio-samples. All these are just the first steps of the Soul of the Caspian project. There is still a lot of work ahead to study the current state of the Caspian seal population and develop a strategy for its conservation. The Caspian seal (Pusa Caspica) is one of the smallest seals on the planet. It is not only the only mammalian inhabitant of the salt lake called the Caspian Sea, but also an indicator of its ecosystem.

The classical theory of gender conflict says that in animals with sexual reproduction and traditional sex roles, males compete for females, and in females, competition for partners is weak, since males are always in abundance. This inference follows from the fact that one male can fertilize many females. Accordingly, males are in abundance in the population, and their reproductive success (the number of offspring) increases with the number of partners. For females, this should not be the case: the number of partners does not increase their reproductive success, so they are not chasing the number of partners, but their quality. However, in recent years, both theory and practice show that not only males, but also females can compete for partners, especially in situations where there are many females and few males. Daphnia alternate parthenogenesis with sexual reproduction. During the period of sexual reproduction, the sex ratio in natural populations can be strongly shifted towards females. Accordingly, questions arise about how many females a male can fertilize and whether females experience a shortage of males, which can lead to reproductive failure and competition of females for males.

In the scientific literature, as well as in the media, there are more and more reports of the appearance in various regions of the globe of animals and plants that were not previously characteristic of them. Many organisms have been accidentally transported thousands of kilometers by humans, for example, transported by sea vessels. In a number of cases, they were deliberately introduced for economic purposes, but then they settled uncontrollably and began to harm nature and humans (rabbits in Australia, hogweed in European Russia, etc.). We can say that at the present time, thanks to rash human activities, there is a general mixing of the faunas and flora of the globe. Most of the efforts of scientists are focused on the study of large invaders, as well as species the introduction of which had devastating consequences for ecosystems. Many people know the history of the appearance in the European part of Russia of the Colorado potato beetle, elodea and rotan fish. Materials on this topic can be found in the "Russian Journal of Biological Invasions", which has become a very famous publication on this topic. The most dangerous species for nature are listed in the book “The Most Dangerous Invasive Species of Russia (TOP-100) (ed. By Yu.Yu. Dgebuadze, V.G. Petrosyan, L.A. Khlyap).

A brief report on the expedition to the Ciscaucasia to study the phylogeography of Palaearctic species of hamsters within the framework of the RFBR grant 20-04-00102a (headed by Doctor of Biological Sciences, Corresponding Member of the Russian Academy of Sciences A.V.Surov). It is rather widely known that the Caucasus is a refugium for many animal species, including three species of hamsters: the common hamster (Cricetus cricetus), the Raddey hamster (Mesocricetus raddei), and the Brandt hamster (M. brandti), which are the objects of research by the IEE RAS staff. Previously, the DNA of animals from many localities has already been analyzed, but significant territories of the Caucasus have remained unexplored. The main goal of the 2021 expedition was to collect material on hamsters from new regions of Dagestan, Ossetia, Ingushetia and Kabardino-Balkaria. The ciscaucasian hamster (M. raddei nigriculus) was of particular interest as its taxonomic status requires revision. Visit to the Voroninsky State Nature Reserve. Director of the reserve, Ph.D. Burkanova Olga Anatolyevna

The theory says that inbreeding, despite its negative effects on offspring, should be more common in nature than is observed. In particular, closely related crosses are facilitated by a limited choice of partners and strict time constraints on the implementation of the life cycle: there is not enough time to choose a suitable, unrelated partner. Scientists from IEE RAS and Penza State University investigated the system of marital relations and ways to avoid inbreeding in the natural population of the yellow ground squirrel, Spermophillus fulvus. In yellow ground squirrels, like other hibernating mammals, a short period of terrestrial activity sets a strict time frame for the implementation of the entire sequence of the annual cycle - they live under time pressure conditions. In particular, a female yellow gopher within 3-3.5 months of ground activity must have time to meet the father of future children, carry them out and feed them, and also gain fat mass before the next hibernation. If we add to this that they have estrus once a year, it lasts several hours, and females live for three years, it becomes clear that there is no time left to choose a suitable unrelated partner and a high frequency of inbred crosses can be expected.

From 12 to 15 October 2021 the A.N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences hosted the II International Working Meeting dedicated to the rehabilitation and reintroduction of predatory mammals. The first such meeting was held in 2015 and aroused great interest among colleagues. The current Working Meeting was dedicated to the memory of the outstanding Russian zoologist Valentin Sergeevich Pazhetnov (1936-2021), an excellent specialist who developed a system for returning orphaned bears to nature. Valentin Sergeevich created a whole dynasty, continuing the work of his life at the biological station "Clean Forest" - the return to nature of bear cubs that lost their mothers. Some of the representatives of this dynasty were able to attend the conference in person, while their other colleagues continued to work with animals at the biological station.

Marina Yakovlevna Orlova-Benkovskaya, senior researcher at IEE RAS, and Andrei Olegovich Benkovsky, senior researcher at IEE RAS, revealed a new pest in the Russian Caucasus a year ago - the Asian fruit fly Drosophila suzukii. It is an invasive species native to East Asia. First, it was transported through fruit to Europe, and in 2014 - to Crimea. Spotted wing drosophila can cause great damage to fruit farms. Drosophila females use their ovipositor to lay eggs under the skin of the fruit. More than 60 types of berries and fruits are under threat, as well as wineries - these flies also damage grapes. The scientific community has been detecting the Drosophila suzukii in Russia since the beginning of the 21st century. “The Asian fruit fly Drosophila suzukii, a quarantine pest of fruit growing, was previously recorded in two regions of Russia: in the Primorsky Territory in 2001 and in the Crimea in 2014–2015. These findings are included in the database of the European and Mediterranean Organization for Plant Quarantine (EPPO),” says Marina Yakovlevna Orlova-Benkovskaya.

Russian scientists from the Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences have discovered an amazing phenomenon: the ash aphid has occupied all of Europe in less than two decades after being discovered on the continent. For the first time, woolly ash aphids were registered in 2003 in Budapest, and only sixteen years later they were spotted in Belarus and eight regions of the European part of Russia. It usually takes much longer for insects to spread, which is why scientists have paid such close attention to aphids. The results of the study, supported by a grant from the Russian Science Foundation (RSF), are published in the journal Forests. The aphids are small insects, but due to their ability to reproduce quickly they can cause tremendous harm to plants not only in parks, forests or gardens, but in households as well. This seemingly harmless creature sucks the juice from the aboveground organs of plants, as a result of which the leaves curl and die off, the buds are deformed and wither, growth slows down, and the fruits stop ripening.

The expedition was organized by the A. N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences (IEE RAS). It was attended by leading specialists of IEE RAS and students of the Faculty of Biology of Moscow State University in the framework of educational practice, as well as employees of the Baikal branch of FGBI VNIRO and FGBI "Zapovednoe Podlemorye". As part of the expedition, research work was carried out in three directions. Another summer expedition to study the state of the Baikal seal population took place from July 27 to August 17. Traditionally, field work took place on the Ushkany Islands, which are a place of accumulation of seals in the summer. Experts visually and using a quadrocopter estimated the size of the seal population, and satellite sensors were installed on 17 individuals to track the movement of animals. First, visual observations of the seals' haul-out on Tonky Island were carried out, which included an estimate of the seal population, the number of sick and non-molted animals. This work is a continuation of the work begun as part of the 2020 summer expedition. Secondly, seals were counted using a quadcopter on three of the four islands of the Ushkany archipelago. Registration on Tonky Island was carried out after a visual assessment, which will help to account for animals that were under water and were not available for visual observation. The censuses carried out on the Dolgiy and Krugly islands will make it possible to more accurately estimate the total number of the Baikal seal on the Ushkany Islands.

Pictured: Phylogeny and morphogeny of deep-sea gastropods of the Raphitomidae family in the South of Australia Although the Raphitomidae family is the dominant component of gastropod communities in the deep-water regions of the World Ocean, their taxonomy is still poorly understood. Focusing on the southeast of Australia, scientists from the A.N. Severtsov Institute of Ecology and Evolution of Russian Academy of Sciences, the Australian Museum of Natural History (Sydney), the Museum of Natural History of France (Paris) have collected the most complete sample of Raphitomidae to date. On behalf of Russia, Alexander Ernstovich Fedosov, Candidate of Biological Sciences, Researcher of the Laboratory of Morphology and Ecology of Marine Invertebrates, IEE RAS, participated in the study. Based on the morphological and molecular data obtained as a result of the study, specialists reconstructed the phylogeny of Raphitomidae and applied it to determine the genera of the family. The results for the fauna of South Australia show a large number of undescribed taxa - eleven genera and their type species are described as new to science. This study shows that the study of morphological features alone is rarely sufficient to accurately determine the species. As a result of the previously dominant conchological approach to the taxonomy of molluscs, some of the traditionally diverse genera of Raphitomidae (such as Gymnobela) are in fact artificial associations of unrelated, mostly undescribed lineages of the generic level. The observations of scientists confirm that similar morphologies of shells and radular elements observed at the genus level do not depend on phylogenetic relationships.

The article was co-authored by Yu.D. Nukhimovskaya, an employee of the IEE RAS. A century-old history of the development of the largest mesophilic ravine-gully community in the clayey Trans-Volga region on the northwestern coast of Lake Elton has been analyzed. It is shown that modern polydominant tree and shrub communities of the gully are the result of anthropogenic degradation of a ravine forest area. The stages of development of polydominant plantations associated with changes in the intensity of pasture load have been identified. The mechanisms of resistance of polydominant communities to grazing and fires and the conditions for the preservation and reproduction of such communities have been considered. It is shown that a closed massif of a polydominant community is resistant to fire and is restored in several years. However, as a result of grazing, it breaks up into fragments. Herbal vegetation penetrates into the plantation, rags and dead wood accumulate. In a fire, the litter burns out to the mineral layer, and most of the regeneration buds buried in the soil die. Rapid and massive coppice recovery does not occur, and the succession process stretches over decades. Under such conditions, with continued grazing and repeated fire, severe soil erosion may develop, leading to irreversible disturbances of the original habitats and, consequently, to the impossibility of restoration of the polydominant community.