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Article Reference A Simple Type of Wood in Two Early Devonian Plants
Located in Library / RBINS Staff Publications
Article Reference A Middle Devonian Callixylon (Archaeopteridales) from Ronquières, Belgium
A permineralized Callixylon trunk is reported from Ronquières, a mid to late Givetian (Middle Devonian) locality from Belgium. The specimen consists of an 80 cm long trunk adpression whose central area is preserved as a pyrite permineralization. The pyritized area is composed of a eustele surrounded by secondary xylem. Tracheids show radially aligned groups of pits separated by unpitted regions on the radial walls of tracheids. The specimen belongs to a group of species characterized by a predominance of uniseriate rays and the lack of ray tracheids. This Callixylon specimen is one of the earliest representatives of the genus. It coexists at the locality with large cladoxylopsids and provides direct evidence that the tree habit had evolved in the archaeopteridalean progymnosperms by the Givetian.
Located in Library / RBINS Staff Publications
Article Reference Palaeolithic dogs and the early domestication of the wolf: a reply to the comments of Crockford and Kuzmin
This is a response to the comments of Crockford and Kuzmin (2012) on our identification of Palaeolithic dogs from different European Palaeolithic sites. In their comments Crockford and Kuzmin (2012) present some errors, misunderstandings and misrepresentations that we remedy here. In our opinion, the early wolf domestication must be regarded as an intimate relationship between humans and canids including the breeding of the latter by prehistoric people, resulting in the European Palaeolithic dogs.
Located in Library / RBINS Staff Publications
Article Reference Serial population extinctions in a small mammal indicate Late Pleistocene ecosystem instability
The Late Pleistocene global extinction of many terrestrial mammal species has been a subject of intensive scientific study for over a century, yet the relative contributions of environmental changes and the global expansion of humans remain unresolved. A defining component of these extinctions is a bias toward large species, with the majority of small-mammal taxa apparently surviving into the present. Here, we investigate the population-level history of a key tundra-specialist small mammal, the collared lemming (Dicrostonyx torquatus), to explore whether events during the Late Pleistocene had a discernible effect beyond the large mammal fauna. Using ancient DNA techniques to sample across three sites in North-West Europe, we observe a dramatic reduction in genetic diversity in this species over the last 50,000 y. We further identify a series of extinction-recolonization events, indicating a previously unrecognized instability in Late Pleistocene small-mammal populations, which we link with climatic fluctuations. Our results reveal climate-associated, repeated regional extinctions in a keystone prey species across the Late Pleistocene, a pattern likely to have had an impact on the wider steppe-tundra community, and one that is concordant with environmental change as a major force in structuring Late Pleistocene biodiversity.
Located in Library / RBINS Staff Publications
Article Reference Intra-specific morphological variability in the cave bear Ursus spelaeus (Mammalia, Carnivora, Ursidae) from the Trou du Sureau (Montaigle caves, Belgium) using an outline analysis
Located in Library / RBINS Staff Publications
Article Reference The Middle Devonian plant assemblage from Dechra Aït Abdallah (Central Morocco) revisited
Located in Library / RBINS Staff Publications
Article Reference Early diversification of seeds and seed-like structures
Located in Library / RBINS Staff Publications
Article Reference Foraging recruitment in Leptothorax uniffasciatus: The influence of foraging area familiarity and the age of the nest-site
Located in Library / No RBINS Staff publications
Article Reference Weather and climate related spatial varability of high turbidity areas in the North Sea and the English Channel
Located in Library / Pending old publications
Article Reference Community interactions between ants and arboreal-nesting termites in New Guinea coconut plantations
Located in Library / No RBINS Staff publications