BACKGROUND AND AIMS Molecular evidence for natural primary hybrids composed of three different plant species is very rarely reported. An investigation was therefore carried out into the origin and a possible scenario for the rise of a sterile plant clone showing a combination of diagnostic morphological features of three separate, well-defined Potamogeton species. METHODS The combination of s...

This paper presents new records and noteworthy data on the following taxa in SE Europe adjacent regions: stonewort Chara intermedia, liverworts Fossombronia wondraczekii Pseudomoerckia blyttii, mosses Hamatocaulis vernicosus Hookeria lucens, monocots Gladiolus palustris, Neotinea tridentata, Orchis militaris dicots Cardamine serbica, waldsteinii, Hieracium kotschyanum Pilosella petraea are give...

Samples historically collected and analysed by the Continuous Plankton Recorder survey in the North Atlantic and adjacent seas were used to examine temporal patterns in the near-surface abundance of copepodite stages V and V1 Calanus hyperboreus (n = a total of 32836 samples; mean latitude of samples = 54" N. SD = 6.7'). The occurrence of CV and V1 C. hyperboreus was largely restricted to sampl...

Many insects face the challenge to select oviposition sites in heterogeneous environments where biotic and abiotic factors can change over time. One way to deal with this complexity is to use sensory experiences made during developmental stages to locate similar habitats or hosts in which larval development can be maximized. While various studies have investigated oviposition preference and lar...