Abstract Background Route choice and travel performance of fly-forage migrants are partly driven by large-scale habitat availability, but it remains unclear to what extent wind support through regimes moulds their migratory behaviour. We aimed determine a trans-equatorial migrant engages in adaptive drift distinct biomes across Africa. The Inter-tropical Front (ITF) marks strong seasonally shif...

Large Pleistocene reptile tracks and traces were described from the Cape south coast of South Africa in 2020, including ‘probable swim traces’. These trace fossils found on loose slabs blocks Klein Brak Formation. Subsequently, another surface has become exposed this coastline, also a slab. It exhibits more definitive evidence epirelief, probably made by Nile crocodile (Crocodylus niloticus) or...

Gibbon's scalar expectancy theory assumes three processing stages in time estimation: a collating level in which event durations are automatically tracked, a counting level that reads out the time-tracking system, and a comparing level in which event durations are matched to abstract temporal references. Pöppel's theory, however, postulates a dual system for perception of durations below and ab...

The feasibility of using the active layer of the colorless LR 115 SSNTD for alpha-particle radiobiological experiments was studied. The track revelation time on the bottom side (the side attached to the polyester base) was much longer than that on the top side (the side not attached to the polyester base) of the active layer so track formation on the top side was more desirable. In relation to ...

Kera (a Chadic language) has been cited as one of a handful of languages which exhibit long distance voicing harmony between consonants (Rose and Walker 2001, Odden 1994). It has also been claimed that Kera voiced ('depressor') consonants lower the tone of the following syllable (Ebert 1979, Wolff 1987a, Pearce 1998). This paper addresses both of these claims, showing with recordings, pitch tra...