Densities of predaceous arthropods were higher on fertilized than on unfertilized trees. |
This process is known as parthenogenesis, where unfertilized eggs develop into embryos without sperm. |
During copulation, the female transfers unfertilized eggs to the male's ventral surface, where fertilization takes place. |
Occasionally, however, a mutation occurs that allows fruit to develop from unfertilized female flowers, a process known as parthenocarpy. |
In most ants, females are typically produced by sexual reproduction, while males develop from unfertilized eggs. |
This tactic seems risky, because not all ovules get fertilized, and the unfertilized ones abort without storing nutrients. |