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The Diversity of Arachnid Assemblages on the Endemic Tree Zelkova abelicea (Ulmaceae): An Evaluation of Fragmentation and Connectivity in Crete (Greece)
Zelkova abelicea is an endemic tree growing only on eight mountain stands on the Greek island of Crete. The aim of this study was to determine the structure of the assemblages and analyze the diversity of the arachnid assemblages living on Zelkova abelicea, an endemic tree species in Crete. Material for the analyses was collected from tree trunks, oftentimes covered by bryophytes or lichens. In the examined material, 85 taxa were recorded. The most numerous groups represented in the analyzed material were Acari, including representatives of the orders Mesostigmata (78 ind. of 18 spp.) and Oribatida (1056 ind. of 51 spp.). In the order Mesostigmata the species represented by the highest numbers of specimens were Onchodellus karawaiewi (15 individuals) and Hypoaspisella sp. (13), which is probably a species new to science. In turn, representatives of the order Oribatida were much more numerous, with Zygoribatula exilis (284) and Eremaeus tuberosus (210) being identified in the largest numbers. Among the eight sampled localities, Gerakari (646 ind. and 50 spp.) and Omalos (409 ind. and 43 spp., respectively) had by far the richest assemblages. Statistical analyses confirmed the highly diverse character of the arachnid assemblages at the individual sites, which is a consequence not only of the varied numbers of arachnids found, but also of the presence of very rare species, such as Androlaelaps shealsi, Cosmolaelaps lutegiensis or Hoploseius oblongus. These results highlight the high species diversity of the arachnids found on Z. abelicea but also suggest the lack of connectivity between the isolated and fragmented forest stands on Crete.
Redescription of Cosmolaelaps hastiger Berlese (Acari: Mesostigmata: Laelapidae), Seven New Synonymies, and the Status of Some Other Species in the Genus
Description of a New Species of Cosmolaelaps Berlese (Acari: Mesostigmata: Laelapidae) and New Report of Some Species of the Genus from the United States of America
Four new species of mites in Ologamasiphis and Holzmannia genera, and a new Juvaria subgenus defined (Parasitiformes: Parasitidae)
The present study proposes the restructuring of Ologamasiphis genus (family Parasitidae) comprising two subgenera Ologamasiphis s. s. and Holzmannia Juvara-Balş, 2002, to have the respective subgenera elevated to the genus level, as well as to have the brand-new Juvaria subgenus created within the Holzmannia genus. The proposed restructuring is based on two newly described species belonging to the genus Holzmannia and subgenus Juvaria n. subgen., to wit Holzmannia (Juvaria) pilosa n. sp. and Holzmannia (Juvaria) silvestris n. sp. Furthermore, two new species belonging to Ologamasiphis genus are described: Ologamasiphis setosus n. sp. and Ologamasiphis zelkovae n. sp. Pertinent modification of the existing key to the Parasitidae genera by Hrúzová and Fenďa (2018) is also supplied.
Impact of Biogenic Structures of the Soil-Nesting Ants Lasius niger and Lasius flavus on the Soil Microarthropod Community in Urban Green Spaces
Organisms that physically modify their environment, known as ecosystem engineers, can influence resource availability, species interactions and the structure of soil communities. However, the specific effect of ecosystem engineers like ants on the abundance and diversity of non-engineering soil organisms remains understudied. To address this knowledge gap, we conducted a survey of a multi-taxon belowground community of soil microarthropods—Collembola, Mesostigmata, Oribatida and Actinedida—in urban areas, comparing nest mounds of the ant species Lasius niger and Lasius flavus with areas without ant-nesting activity (control). We hypothesised differences in abundance and distribution patterns of different soil microarthropod taxa between ant mounds and the control soil. We also hypothesised that ant-induced soil disturbance is species-specific, and may result in different patterns of diversity and composition of soil microarthropod assemblages within trophic levels, such as among detritivores (e.g., Collembola) and predators (e.g., Mesostigmata). Our results reveal how ecological filters shape different soil microarthropod groups’ responses to ant-driven changes in their environment. As we expected, soil disturbance caused by ant nest-building activity significantly influenced the abundance, distribution patterns and diversity of soil microarthropods, especially in the assembly of detritivorous—but not predatory—guilds of soil microarthropods.
What factors affect the alpha diversity of microarthropods (Acari, Collembola) on King George Island (Antarctica)?
AbstractThe natural environment in polar regions is being transformed, glaciers are melting and succession of microarthropods is being observed. We tested the hypothesis that habitat conditions, determined by the locality and character of the vegetation cover, play a significant role in such succession. The material for analysis was collected from four localities on King George Island in Antarctica: Arctowski Station, Demay Refuge, Republica del Ecuador Refuge and Comandante Ferraz Antarctic Station. From each locality, 30 samples (grasses, lichens, mosses) were collected and 310 508 microarthropod specimens were recorded, with 17 species (1 Mesostigmata, 9 Oribatida, 7 Collembola species) identified. Based on statistical analyses, it was shown that microarthropod communities differ both in individual localities and selected microhabitats. The greatest number of species was reported in the grass turf, while the greatest number of individuals was recorded in mosses. The dominant species at all the localities was Cryptopygus antarcticus antarcticus (299 203 individuals), which was found in greatest numbers in grasses and mosses. In turn, Tullbergia mixta (2485 individuals) was the dominant species of the lichens. Moreover, the following species, new to King George Island, were also identified: Flagrosuctobelba subcornigera, Liochthonius australis, Membranoppia ventrolaminata and Quadroppia monstruosa belonging to Oribatida as well as Archisotoma brucei belonging to Collembola.
On the terrestrial and freshwater invertebrate diversity of the High Arctic archipelago of Svalbard: a revised species inventory and synopsis of the community composition
Arctic terrestrial invertebrate biodiversity is generally poorly known, but the archipelago of Svalbard has one of the most up-to-date inventories of its terrestrial and freshwater faunas of any Arctic region, offering a baseline for long term monitoring of invertebrate communities in space and time. Since the most recent review of the Svalbard invertebrate fauna was produced in 2014, knowledge of this fauna has developed and this inventory is here critically revised and updated. Our aims are (1) to critically review the inventory based on current taxonomic knowledge, (2) publish the complete species inventory, including cross-referencing to the relevant publications, in an open access data archive (GBIF), and (3) highlight the particular advantages that working in Svalbard may bring for scientists working on terrestrial, freshwater, and cryospheric environments. The inventory contains a total 1091 valid species names or interim names. A gap analysis in the Barcode of Life Data Systems reveals that 50% of the species currently documented from Svalbard lack COI (Cytochrome c oxidase subunit 1) barcode reference sequences in this database. Gaps in our knowledge of the Svalbard fauna and how these may be resolved are discussed.
The impact of marine vertebrates on polar terrestrial invertebrate communities
AbstractMarine birds and pinnipeds which come to land to breed, rest and moult are widely known to fertilize adjacent terrestrial ecosystems, with cascading effects on vegetation and other trophic levels. We provide a synthesis of the consequences of allochthonous nutrient enrichment for terrestrial invertebrate communities within and around marine vertebrate aggregation sites and nutrient sources in the High Arctic and Continental and Maritime Antarctic, the most nutrient-poor and environmentally extreme parts of the polar regions. Using a combination of literature review (identifying 19 articles from the Arctic Svalbard archipelago and 12 from different Antarctic locations) and new analyses of available datasets of springtail, mite and tardigrade community composition, we confirmed that terrestrial invertebrate abundance and species richness tended to increase, and their community compositions changed, as a result of marine vertebrate fertilisation in both polar regions. These changes were significantly greater on talus slopes enriched by kittiwakes, guillemots and little auks in the Arctic, as compared to the edges of penguin colonies in the Antarctic. Both these habitat areas were typically abundantly vegetated and provided the most favourable microhabitat conditions for terrestrial invertebrates. The most heavily disturbed and manured areas within Antarctic penguin rookeries and seal wallows, generally on flat or gently sloping ground, were typically characterised by extremely low invertebrate diversity. In the Arctic, only sites directly beneath densely-occupied bird cliffs were to some extent comparably barren. Invertebrate responses are dependent on a combination of vertebrate activity, local topography and vegetation development.
Artykuł Józefa Rivolego (1838-1926) – interesujący przyczynek historii niemieckiej okupacji Puszczy Białowieskiej w okresie I Wojny Światowej
Microarthropods Living on the Endemic Tree Zelkova abelicea (Ulmaceae) with Particular Attention to Collembola Diversity
Zelkova abelicea is an endemic tree species growing in several localities in the mountainous regions of Crete, Greece. To date, the microarthropod species associated with this tree species have not been identified. Since Z. abelicea populations are isolated and fragmented, it was hypothesized that the characteristics of microarthropod assemblages, particularly in the case of springtails (Collembola), would vary and differ among localities. Moreover, rare microarthropod species that colonize microhabitats not included in previous studies on Zelkova trees were expected to be recorded. Samples were collected from the bark and twigs of Z. abelicea at eight localities in all main mountain ranges. Among the collected material, Collembola were the most numerous (10,285), followed by Acari (2237) and representatives of Psocoptera (422). The obtained material and statistical analyses showed that the arthropod assemblages differed considerably at each experimental site, with the most distinct assemblage characteristics observed at the Gerakari site on Mt. Kedros in central Crete. The most numerous specimens were species of Collembola: Xenylla maritima (3844), Xenylla sp. 2 (maritima complex) (3364) and Xenylla sp. 1 (maritima complex) (2631). A total of 33 Collembola species were recorded, of which 19 had not been previously reported in Crete. Among them, 11 species were likely new to science and will be the subject of separate taxonomic studies.
Occurrence of mites (Acari) and springtails (Collembola) in bird nests on King George Island (South Shetland Islands, Antarctica)
Pathogens as creators of biodiversity. A study on influence of decayed bracket fungi on alpha diversity of microarthropods in the Karkonosze National Park, Poland
A New Species of Hypoaspisella Bernhard (Acari: Mesostigmata: Laelapidae) on Zelkova abelicea (Ulmaceae) from Greece
The Ban on Participation of Children and Teenagers in the Hunt in Poland – A Case Study of Parliamentary Law Enactment Process and its Consequences
AbstractWe are witnessing a clash of (i) biocentric or ecocentric ideologies that grant equal rights to all living creatures, with (ii) an ideology that arose on the basis of anthropocentrism that gives the palm of priority to man. Hunters who are accused of killing defenseless animals for entertainment are at the heart of this dispute. Meanwhile, hunters argue that their activity results from the need to manage game populations, thus the necessity to limit the threats to human life and health and to minimize the extent of damage to field crops or forests. In the atmosphere of such public disputes between activists and hunters, decisions are made by politicians who shape specific legal solutions. In 2018, the Hunting Law (Polish Act of 13 October 1995, Journal of Laws of 2020.) in Poland was amended and children and adolescents under 18 were banned from participating in hunting. It has aroused dissatisfaction of hunters who have taken initiatives to amend these legal provisions, e.g. a complaint to the Constitutional Tribunal, a social draft amendment to the act. The legal initiatives of hunters have been fuelling a broad social debate that often have gone beyond the scope of sustainable hunting management. The amendment has been questioned by a group of Polish MPs as infringing the constitutional right of parents to bring up and educate their children in accordance with their worldviews. Moreover, the teenagers, frequently considered as adults under numerous provisions of Polish law, have been deprived of their constitutional freedom of making decisions about their pastimes. The opponents in turn claim that under the Constitution of the Republic of Poland (Polish Act of 21 August 1997, Journal of Laws of 2020.) children must be protected against violence and cruelty. The aim of the study is to present the mechanisms of a legal, political, sociological and ideological dispute and to provide some basic insight into the Parliamentary debate and the outcome of legislation process as a result of which children have been deprived of the right to accompany their parents during hunting expeditions also in the character of passive observers. The research methods applied included the following ones: the analysis of the discourses and legislation under scrutiny in Poland and a few selected countries, and empirical observation of debates carried out in public space. The research material encompassed the recorded Parliament speeches focusing on the issue in question, legislative process, social media posts and various blogs. The assessment of the current legal solutions and the analysis of the attitudes of both parties to the dispute leads to a reflection that the problem of prohibiting the participation of children under 18 in hunting is not solved. There is a need to search for new solutions on the basis of substantive knowledge, including, inter alia, legal science or social psychology. Politicians should be aware that the emotional pressure may not and should not be the basis for law amendments.
New Record of the Rare Phytoseiid Mite (Parasitiformes: Phytoseiidae) from Poland and Description of Unknown Male
Human and Nature: Between Destruction and Creation
The problem of interaction between man and nature throughout history is, relatively, rarely addressed by classical historiography. The session entitled Man and Nature: Between destruction and creation, organized and chaired by Prof. Tadeusz Janicki (Faculty of History, UAM, Poznań, Poland) and Prof. Dariusz J. Gwiazdowicz (Department of Forest Protection, Poznań University of Life Sciences, Poland) on 24 August 2022 as part of the XXIII International Congress of Historical Sciences Poznań 2022, was an attempt to change this tendency and broaden the existing research perspective. The papers delivered during the occassion were the starting point for the preparation of a special issue of the journal Studia Historiae Oeconomicae (SHO), the primary purpose of which is interdisciplinary reflection by specialists from various scientific disciplines on the problem of destruction of natural landscapes and creation of cultural landscapes, along with other issues concerning the interaction between humans and the natural environment from prehistoric times to the present.This special issue of SHO consists of seven articles on diverse topics, analysing human interactions with nature through different historical periods, meanwhile taking into account their economic, civil, social and climatic conditions. The result is a multifaceted mosaic of topics that constitutes an original and interdisciplinary analysis of man’s relationship with nature, which may be a source of inspiration for readers and perhaps further research in this field.
Novel phoretic associations between mites and flies and faunistic composition of phoretic mites at composters in Poland
Materials for the Polish National Forest Program as the foundation for further analyses in the light of forest−related discourse in Polish media
Invertebrates occurring in fruiting bodies of the pathogenic tinder fungus, Fomes fomentarius (Polyporales), in the different types of Polish protected forests
Bracket fungi are usually considered as a cause of economic losses, while they also offer specific microhabitats and have an impact on biodiversity. However, to date this topic has not been sufficiently studied. The aim of this article is to show how the diversity of invertebrate communities, viz. harvest spiders (Aranae, Opiliones), pseudoscorpions (Pseudoscorpionida), two groups of mites (Mesostigmata and Oribatida), springtails (Collembola), and insects (Insecta), inhabiting fruiting bodies of the tinder fungus, Fomes fomentarius, depend on specific characteristics of forests. Samples were collected in three locations: the Białowieża National Park (BNP) characterised by a high degree of forest naturalness, the Bieszczady National Park (BdNP), which was transformed by humans, but has been undergoing naturalisation for several decades, and the Karkonosze National Park affected by a large-scale forest dieback in the 1980s and which for years has been under strong tourist pressure. A total of 20 fruiting bodies of F. fomentarius were collected at each location. In total, 9,821 individuals of invertebrates belonging to 204 species were extracted. The most numerous group was Oribatida (6,595 individuals classified to 106 species), while the most numerous species was Carabodes femoralis (5,216 individuals). The study sites differed in the number of species (the highest one was observed in the BdNP, 115, and the lowest one in the KNP, 88) and number of individuals (the highest one was observed in BdNP, 4,285, and the lowest one in BNP, 1,595), as well as the number of individuals per species (the highest one was observed in the BdNP, 37.26 individuals per 1 species, and the lowest in the BNP, 15.79 individuals per 1 species). A NMDS analysis revealed that the inner distribution of the samples in each of the locations was similar in the case of mountain national parks (BdNP and KNP), while the invertebrate groupings from the BNP and KNP differed the most between one another. The multilevel pattern analysis showed different, specific invertebrate species for each study sites, e.g. Carabodes subarcticus for the BNP, Friesea mirabilis for the BdNP, Oribatella calcarata for the KNP and Dendrolaelaps pini for both mountain national parks. This study shows the uniqueness of invertebrate communities inhabiting fruiting bodies of F. fomentarius and confirms the positive role of this pathogenic fungi in shaping biodiversity. Key words: arthropods; bracket fungi; polypores; anthropopressure; natural forest