General Ecology_Mahaffy_Date__051810

General Ecology_Mahaffy_Date__051810 - Introduced Species...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Introduced Species Mute swan Found in Chesapeake Current population size at least 4,000 Should be below 500 to not harm the ecosystem Large numbers are harming the ecosystem 1962 Captured swans escaped from a ship during a storm and established a population Eat coast grasses Are aggressive Some steps taken to reduce the population Limit reproduction Remove eggs from the nests Elimination? Need substantial data first that the alien swans are forcing out the native tundra swans Coleoptera taxifolia Invasive grass Killer bees Came from south America Fire ants Are now found in 14 U. S. states Came from ships ballasts Zebra muscle Outcompetes the native muscles New Zealand and Hawaii Have as many native species as they do alien species United States Has over 7,000 alien species Guam Lost all 3 of its native species due to the brown tree snake
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/29/2010 for the course BISC 302 taught by Professor Walsh during the Spring '08 term at University of Delaware.

Page1 / 2

General Ecology_Mahaffy_Date__051810 - Introduced Species...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online