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Background Effective communication between sexual partners is essential for successful reproduction. Avian parents with biparental incubation need to know how to negotiate, when and who will incubate, and how to harmonize partner exchange at the nest. Although considerable effort has been dedicated to studies of incubation rhythms, few studies have investigated how behavioural signals serve to tighten...
The spatial variability of farmland prices is determined by factors reflecting agricultural use, and also by location-specific characteristics, which are crucial to the conversion of farmland to non-farming uses. In co-operation with experienced real-estate brokers, we collected data from 286 transactions carried out in 2008. We identified factors to be analyzed at the parcel scale and tested their...
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