@article {1366, title = {Myriapod Trivia - Curiosities of British Natural History \& The Rabbit and the Centipede}, journal = {Bulletin of the British Myriapod \& Isopod Group}, volume = {32}, year = {2020}, month = {03/04/2020}, pages = {95-97}, type = {Miscellanea}, chapter = {95}, abstract = {

Over the years with an interest in the more formal study of myriapods, especially centipedes, I have also accumulated a few items of what we might call \"trivia\" - prints, pictures etc. The two items here come into that category and I know there are many more like them around and they are offered as light relief for Bulletin readers. I know little about The Penny Magazine but it clearly represents a cheap, presumably weekly, publication dedicated to that great Victorian aim of \"self improvement\". This issue comprises eight pages with items as varied as \"Essays on the lives of Remarkable Painters No.XXXI: Andrea del Sarto\", \"The English and Irish Ordnance Surveys\" and \"The Hareem of Ibrahim Pasha\". I have abridged the item on Centipedes and Millipedes from the original three pages. \"The Rabbit and the Centipede\" comes from a children\&$\#$39;s book of 1907. I am not sure that it sheds any particular new light on myriapod locomotory mechanisms.

}, issn = {2513-9444}, url = {https://www.bmig.org.uk/sites/www.bmig.org.uk/files/bulletin/BullBMIG32(2020)95-97_Myriapod-Trivia.pdf}, author = {Barber, Anthony D.} } @article {1329, title = {Don{\textquoteright}t forget the vertical dimension: assessment of distributional dynamics of cave-dwelling invertebrates in both ground and parietal microhabitats}, journal = {Subterranean Biology}, volume = {40}, year = {2021}, month = {14/10/2021}, pages = {43-63}, abstract = {

Biological studies on factors shaping underground communities are poor, especially those considering simultaneously organisms with different degrees of adaptation to cave life. In this study, we assessed the annual dynamics and use of both horizontal and vertical microhabitats of a whole community with the aim of understanding whether cave-dwelling organisms have a similar distribution among vertical and ground-level microhabitats and to find out which microhabitat features influence such distribution. We monthly assessed from 2017 to 2018, by direct observation combined with quadrat sampling method on the ground and transects on the walls, richness and abundance of 62 cave-dwelling species in a cave of Northern Italy. Environmental factors such as light intensity, temperature, relative humidity and mineralogical composition of the substrates were measured during each monitoring session, influencing the dynamics of the whole community and revealing significant differences between ground and wall microhabitats. A gradient of variation of the species assemblages occurred from the entrance toward inner areas, however, evidence that the dynamics of the walls are very different from those occurring at the ground independent from the distance from the surface are shown. Biodiversity indices highlighted sampling area diversity and a discrete total cave fauna biodiversity with the highest values found near the entrance and the lowest in the inner part of the cave.

}, keywords = {cave biodiversity, cave community, environmental drivers, subterranean biology, subterranean environment}, issn = {1314-2615, 1768-1448}, doi = {https://doi.org/10.3897/subtbiol.40.71805}, url = {https://subtbiol.pensoft.net/article/71805/}, author = {Balestra, Valentina and Lana, Enrico and Carbone, Cristina and De Waele, Jo and Manenti, Raoul and Galli, Loris} } @article {833, title = {Terrestrial invertebrate fauna of Polish caves {\textendash} a summary of 100 years of research}, journal = {Subterranean Biology}, volume = {33}, year = {2020}, month = {13/02/2020}, pages = {45-69}, abstract = {

The year 2018 is particularly important in the history of zoological research in Poland. A hundred years ago, Kazimierz Demel published the first work concerning the terrestrial cave fauna of caves in the Ojc\ów area. In this paper we present the extent of research on the terrestrial invertebrate fauna of Polish caves in the last 100 years. All accessible research papers that have been published during this period were analysed. Based on published literature, 593 species of terrestrial invertebrate were recorded in Polish caves. Additionally, detailed list of species of individual taxonomic groups was provided.

}, keywords = {caves, checklist, invertebrate, Poland, subterranean fauna, terrestrial}, issn = {1768-1448}, doi = {10.3897/subtbiol.33.48805}, url = {https://subtbiol.pensoft.net/article/48805/}, author = {Kocot-Zalewska, Joanna and Domaga{\l}a, Pawe{\l}} } @article {427, title = {Diversity and evolution of the P450 family in arthropods}, journal = {Insect Biochemistry and Molecular Biology}, volume = {127}, year = {2020}, month = {22/10/2020}, pages = {1-22}, abstract = {

The P450 family (CYP genes) of arthropods encodes diverse enzymes involved in the metabolism of foreign compounds and in essential endocrine or ecophysiological functions. The P450 sequences (CYPome) from 40 arthropod species were manually curated, including 31 complete CYPomes, and a maximum likelihood phylogeny of nearly 3000 sequences is presented. Arthropod CYPomes are assembled from members of six CYP clans of variable size, the CYP2, CYP3, CYP4 and mitochondrial clans, as well as the CYP20 and CYP16 clans that are not found in Neoptera. CYPome sizes vary from two dozen genes in some parasitic species to over 200 in species as diverse as collembolans or ticks. CYPomes are comprised of few CYP families with many genes and many CYP families with few genes, and this distribution is the result of dynamic birth and death processes. Lineage-specific expansions or blooms are found throughout the phylogeny and often result in genomic clusters that appear to form a reservoir of catalytic diversity maintained as heritable units. Among the many P450s with physiological functions, six CYP families are involved in ecdysteroid metabolism. However, five so-called Halloween genes are not universally represented and do not constitute the unique pathway of ecdysteroid biosynthesis. The diversity of arthropod CYPomes has only partially been uncovered to date and many P450s with physiological functions regulating the synthesis and degradation of endogenous signal molecules (including ecdysteroids) and semiochemicals (including pheromones and defense chemicals) remain to be discovered. Sequence diversity of arthropod P450s is extreme, and P450 sequences lacking the universally conserved Cys ligand to the heme have evolved several times. A better understanding of P450 evolution is needed to discern the relative contributions of stochastic processes and adaptive processes in shaping the size and diversity of CYPomes.

}, keywords = {Detoxification, Ecdysteroid metabolism, Gene clusters, Orthologous groups, P450 Evolution}, issn = {0965-1748}, doi = {10.1016/j.ibmb.2020.103490}, url = {https://linkinghub.elsevier.com/retrieve/pii/S096517482030179X}, author = {Dermauw, Wannes and Van Leeuwen, Thomas and Feyereisen, Ren{\'e}} } @article {393, title = {Arthropod segments and segmentation {\textendash} lessons from myriapods, and open questions}, journal = {Opuscula Zoologica}, volume = {51}, year = {2020}, month = {07/08/2020}, pages = {7-21}, abstract = {

The current understanding of the segmental organization of myriapods is dramatically different from the traditional views, due both to fresh research on a number of myriapod species and to progress in comparative developmental biology at large. In the late eighties, the emerging paradigm of ecdysozoan affinities of arthropods prompted a revisitation of the concept of the segment as an archetypical body unit. Fresh approaches to myriapod comparative morphology and pioneering studies on the developmental genetics of segmentation in Strigamia maritima, Lithobius atkinsoni and Glomeris marginata contributed to the definitive abandonment of the Articulata hypothesis and suggested a reformulation of the segment concept as the product of a functional integration between a number of distinctly repeated serial units, e.g. neuromeres, tergites, sternites. In the light of this refreshed interpretation of myriapod segmental architecture, we must reject the na\ïve views that (a) segment production is necessarily prior to segment patterning, (b) serial features evolve from polymerous and poorly patterned to oligomerous and strongly patterned series (Williston\’s law), and (c) the divide between embryonic and post-embryonic development is necessarily a major turning point in morphogenetic processes. Open questions remain, e.g. to which extent the production of serial structures along the main body axis of myriapods is multiplicative rather than sequential.

}, keywords = {anamorphosis, developmental genetics, Epimorphosis, saltational evolution, Williston{\textquoteright}s rule.}, issn = {0237-5419}, doi = {http://dx.doi.org/10.18348/opzool.2020.S2.7}, url = {http://opuscula.elte.hu/PDF/Tomus51_S2/Op_\%20Minelli_Arthropod_segmentation.pdf}, author = {Minelli, Alessandro} }