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Article Reference Sixteen issid planthopper species in one day in Dong Son-Ky Thuong Nature Reserve in North Vietnam: Eight new species, one new genus and additional new records (Hemiptera: Fulgoromorpha: Issidae)
Located in Library / RBINS Staff Publications 2023
Article Reference Size of the lower carnassial in the arctic and the red fox from Late Pleistocene in Belgium compared to other ancient and extant populations
Lengths, widths, and size proportions (length to width) of the lower carnassial were measured in 45 teeth of the arctic fox and 35 teeth of the red fox from Belgium radiocarbon dated to 46 640–14 120 ka BP. Data the Late Pleistocene foxes from Belgium were compared to 20 ancient and extant populations form Europe, Asia, and North America. The Pleistocene arctic fox from Belgium showed larger carnassial than in all recent samples of this species, whereas the Belgian fossil red foxes were characterized by the carnassial size comparable to that of the recent Siberian red foxes. Both fox species from the Pleistocene of Belgium showed the highest index of the carnassials length to width, which means increase in carnivorous adaptation. We conclude that the higher level of carnivorous specialization reached by the Belgian arctic and red foxes at the end of the Late Pleistocene reflected their scavenging on kills of large carnivores and human hunters (remains of megafauna). Harsh environmental conditions of that period and specific composition of ecosystems led to adapting to a more carnivorous food niche in both foxes.
Located in Library / RBINS Staff Publications 2020
Article Reference Size of the lower carnassial in the arctic and the red fox from Late Pleistocene in Belgium compared to other ancient and extant populations
Lengths, widths, and size proportions (length to width) of the lower carnassial were measured in 45 teeth of the arctic fox and 35 teeth of the red fox from Belgium radiocarbon dated to 46 640–14 120 ka BP. Data the Late Pleistocene foxes from Belgium were compared to 20 ancient and extant populations form Europe, Asia, and North America. The Pleistocene arctic fox from Belgium showed larger carnassial than in all recent samples of this species, whereas the Belgian fossil red foxes were characterized by the carnassial size comparable to that of the recent Siberian red foxes. Both fox species from the Pleistocene of Belgium showed the highest index of the carnassials length to width, which means increase in carnivorous adaptation. We conclude that the higher level of carnivorous specialization reached by the Belgian arctic and red foxes at the end of the Late Pleistocene reflected their scavenging on kills of large carnivores and human hunters (remains of megafauna). Harsh environmental conditions of that period and specific composition of ecosystems led to adapting to a more carnivorous food niche in both foxes.
Located in Library / RBINS Staff Publications 2020
Article Reference Skeleton of a new owl from the early Eocene of North America (Aves, Strigiformes) with an accipitrid-like foot morphology
We describe a partial skeleton of a large-sized owl from Wasatchian strata of the Willwood Formation (Wyoming, U.S.A.). The holotype of Primoptynx poliotauros, gen. et sp. nov., includes all major postcranial bones and is one of the most substantial Paleogene records of the Strigiformes. The fossil shows that owls exhibited a considerable morphological diversity in the early Eocene of North America and occupied disparate ecological niches. As in the protostrigid taxon Minerva from the late early to early middle Eocene of North America, but unlike in extant owls, the ungual phalanges of the hallux and the second toe of the new species are distinctly larger than those of the other toes. Primoptynx poliotauros gen. et sp. nov., however, does not exhibit the derived tibiotarsus morphology of the Protostrigidae. Even though the new species may well be a stem group representative of protostrigid owls, current data do not allow an unambiguous phylogenetic placement. Concerning the size of the ungual phalanges, the feet of P. poliotauros correspond to those of extant hawks and allies (Accipitridae). We therefore hypothesize that it used its feet to dispatch prey items in a hawk-like manner, whereas extant owls kill prey with their beak. Primoptynx and protostrigid owls were possibly specialized in foraging on prey items that required an accipitrid-like killing strategy, such as larger-sized or more defensive mammals. The extinction of these peculiar owls may have been related to the radiation of accipitrid diurnal birds of prey, which appear to have diversified in the late Eocene and early Oligocene.
Located in Library / RBINS Staff Publications 2020
Article Reference Slow evolution in an ancient asexual ostracod
Located in Library / RBINS Staff Publications
Article Reference Slow molecular evolution in ancient asexual darwinulid ostracods
Located in Library / RBINS Staff Publications
Article Reference Small is beautiful: diversity of freshwater ostracods (Crustacea, Ostracoda) in marginal habitats of the province of Parma (northern Italy)
Located in Library / RBINS Staff Publications
Article Reference Small things can make a big difference: a comparison of pollen and macrobotanical records of some food plants from medieval and post-medieval cesspits in the Netherlands and northern Belgium
This paper presents a review of records of pollen and botanical macroremains of a selection of food plants from late and post-medieval cesspits (12th century-19th century ad) in the Netherlands and northern Belgium. The presented data demonstrate that several food plants remain largely invisible in the macrobotanical records. These are all plants from which the flowers or flower buds (Borago officinalis, Capparis, Carthamus tinctorius, Crocus sativus, Syzygium aromaticum) or leaves (Anthriscus cerefolium, Spinacia oleracea) are eaten, or that are typical components of honey (Cistus). As a result, little is known about the import or local production and consumption of these food plants in these times. This review now shows that past use of some of these plants is reflected in the pollen assemblages of (post-) medieval cesspits. For the first time, a large archaeobotanical dataset is presented, including pollen, providing information on the past use of these plants between the 12th and 19th century ad in the Netherlands and Belgium.
Located in Library / RBINS Staff Publications 2019
Misc Reference Small-scale spatial distribution of ground living ants in a subtropical dry forest.
Located in Library / RBINS Staff Publications
Article Reference Social status as reflected in the food refuse from late medieval sites in Namur (Belgium)
Located in Library / RBINS Staff Publications