Factors influencing within-group conflict over defence against conspecific outsiders seeking breeding positions

Cooperation & Conflict in Transatlantic Defence and Security Structure

The both Atlantic side relations from the ancient time had been faced with too much challenge but the continuing of this relation is due to the common political and economical interests. The upper Atlantic and the two organizations (NATO, EU) still exist to gain the essential goals and the political and security connection which are boosting with the economical integration at the same time. But...

Management Factors Influencing Fertility in Synchronized and Natural Breeding Programs

Artificial insemination provides a method to inseminate a large number of females to a single sire that has been selected and proven to be an industry leader for economically relevant traits. Thus, genetic change in a herd can occur quickly through the use of artificial insemination. With natural service, herd bulls are also selected for economically relevant traits but are limited on the numbe...

Factors Influencing Postnatal Emotional Distress and Barriers to Help-seeking

Influencing rent-seeking contests

This paper shows that a policy that uniformly increases contestants’ effort costs can lead to an increase in total effort. In asymmetric settings, this “levels the playing field” and therefore encourages weaker players (who otherwise would have stayed out) to enter. Paradoxically, a contest designer whose only objective is to maximize total effort may thus wish to make rent-seeking “more diffic...

Factors affecting breeding dispersal in the facultatively colonial lesser kestrel: individual experience vs. conspecific cues

1. The role of individual experience vs. the use of conspecific cues on breeding dispersal decisions have seldom been determined in colonial birds. We studied causes of breeding dispersal in the lesser kestrel (Falco naumanni ), a species that breeds in colonies of variable size as well as solitarily. During a 6-year study in Spain, we gathered information on 486 subsequent breeding attempts an...