Fish Eggs Spread Far and Wide by Waterfowl Radio program "Top of Mind", August 10, July Rise (BYU Radio) interviews our colleague Andy Green. How do fish end up in remote, isolated crater lakes or desert lakes or wetland ponds that pop up...

Fruit colours attract animal seed dispersers, yet the causes of fruit colour diversity remain controversial. The lack of knowledge of large?scale spatial patterns in fruit colours has limited our ability to formulate and test alternative hypotheses to explain fruit colour, fruit size and fruit colour diversity. Spatial (especially latitudinal) variation in fruit colour, colour diversity and length has been described, and tested for correlations between fruit colour, length and plant habit,...

The distribution of juvenile dispersal distances of a territorial long-lived species with deferred maturity, the Spanish imperial eagle, was investigated. A reintroduction program was used as an experimental approach to test predictions of different hypotheses about the distribution of juvenile dispersal distances: competition and wandering behavior. The maximal juvenile dispersal distances of 59 young eagles were determined

The consequences of symbiont transmission strategies are better understood than their adaptive causes. Feather mites are permanent ectosymbionts of birds assumed to transmit mainly vertically and massively from parents to offspring. This may seem maladaptive because of the low survival expectancies of chicks compared to bird parents. Why, then, do feather mites have this mass transmission to nestlings? Here, the transmission of Proctophyllodes doleophyes is studied in two European populations...