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--- 2019:groups:g7:start [2018/12/18 21:11] – [Introduction] mendes
+++ 2019:groups:g7:start [2024/01/09 18:45] (current) – external edit 127.0.0.1
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-**Group 8**
+**Group 7**
+<html><font size=6 face="Arial">Fishers vs Pirates: Does Crime Pay? </font></html>
-====== Fishers vs Pirates: Does Crime Pay? ======
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 ===== Introduction =====
+{{  https://pbs.twimg.com/media/CRVbvM7VEAAUuw5.jpg?300}}
 Some animals are widely known for resorting to a different way of obtaining food: theft. Species that steal for eating are known as kleptoparasites. Usually they choose other species as victims, but that's not always true. Some species, like the kelp gull (//Larus dominicanus//), steal from their own species (intraspecific kleptoparasitism). Each time a gull goes foraging, it may choose between being a fisher, and hunt its own food, or being a pirate, and steal another gull's food. The main reason for a gull to pirate is that, in some occasions, it may be easier to steal. However, there are several factors that affect the success of a stealing attempt, and sometimes being a pirate can be costlier than being a fisher.
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 ===== Suggested Questions =====
-  * Is there an optimal proportion of pirates?
+  * If the gulls' behavior is adaptive, what would be the "optimal" proportion of pirates, from the point of view of the individual foraging?
-  * Are there conditions in which no gull wants to be a pirate?
+  * Are there conditions in which no gull would act as pirate?
+  * Is there an "optimal" proportion of pirates that yields a maximum population size?
+==== Challenge ====
+  * From an evolutionary point of view, is there an "optimal" - evolutionarily stable - proportion of pirates?
 ===== References =====