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Invasive Species Position Paper Grading Rubric - Essay Example
Pages 4 (1004 words)
The ancestors of Apis mellifera scutellata live through out Africa, south of Sahara Desert. In the year 1956, few colonies of mellifera scutellata were brought to Brazil by Dr.Warwick Kerr (Kerr 1967), a geneticist to cross breed with the European Honey Bees (EHB) which did not thrive in tropics of South America to revive the declining apiculture industry…
Later these AHBs were found in Arizona, California and Southern parts of United States.
AHBs are more adaptable to tropical regions where the abundance of flora is dependent on unpredictable rainfall. As an adaptability to this factor AHBs they frequently swarm to new habitats, reproduce rapidly with shorter developmental life cycles and survive even on sparse supplies of pollen and nectar.
Economic threat: Essential need for honey bees to pollinate crops as well as honey production is the matter of great economic concern. Americans are known to consume about 275 million pounds of honey every year. In this context AHBs produce less honey and wax when compared to EHBs. They also produce less wax affecting the manufacture of candles, polish and floor wax. Due to frequent swarming and extensive hive abandoning nature they are less preferred in managed beekeeping industry.
Ecological threat: i) They compete and displace local EHBs and other pollinators for nectar and pollen. ii) AHBs invade EHB hive and are capable of upsurging the hive and replacing the EHB queen. In a single generation the EHB matriline is eliminated and the entire EHB hive being Africanized (DeGrandi-Hoffman 2006). ...
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