VandenBerg, Alfons H.M., November 2017. Fragmentation as a novel propagation strategy in an Early Ordovician graptolite. Alcheringa 42, 1–9. ISSN 0311-5518.
Catenagraptus communalis gen. nov. sp. nov. is a late Floian (Early Ordovician) graptolite from Victoria, Australia, only found as fragments, with each fragment resembling an assemblage of uniserial tubarium-like structures (pseudotubaria) connected by threads (aulons). Individual pseudotubaria consist of a fallosicula and a stipe, both of which are linked by aulons to other pseudotubaria. Adjacent pseudotubaria are in a parent–offspring relationship. Aulons can be generated from both the proximal and distal extremities of fallosiculae, and from the ends of stipes. The aulons are interpreted to have been grown by the zooid that occupied either the fallosicula or the terminal theca of the stipe. Aulons were pathways for a zooid that built a fallosicula at the end of the aulon. This process was repeated to form the assemblage. None of the assemblages contain a true sicula, which suggests that the assemblages present evidence of a new, asexual propagation strategy that involved fragmentation and dispersal. As this interpretation is radical, other models explored are partial sclerotization and modified sicular spines.
Trophy hunting in the Arctic happened in an intersection between tourism, expeditions and hunting. This study contributes to a discrete history of masculinity within the context of trophy hunting organized from North Norway and to a broader understanding of Arctic masculinity. As trophy-hunting expeditions are primarily a male, even masculinist, practice, an analysis from a gender perspective is unavoidable. By taking an empirical approach I investigate performances of masculinity in written accounts of Arctic trophy-hunting expeditions from 1827–1914. The use of masculinity as a pivot demonstrates that a modification of the prevailing perception of Arctic masculinity is necessary. While the general understanding is dominated by an emphasis on physical strength, roughness, ingenuity, and self-realization, qualities connected to traditional knowledge of trappers, sailors and explorers, my analysis shows that trophy hunting introduced aristocratic ideals such as gentlemen’s sport, self-discipline, hunting morals, care for nature and knowledge to their home communities. Trophy hunting made possible performances of different forms of masculinity, not only the conquest and mastery of nature, but also the interest in and care for nature. Women accompanied as family members and hunters, and took part in the hunt more than has been commonly noted. 相似文献
