16 Invasive Species

16 Invasive Species - INSECT INVASIONS TFTD: Invasive...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
INSECT INVASIONS
Background image of page 1

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

View Full DocumentRight Arrow Icon
TFTD: Invasive Invasive. Adj . Etymology: Latin, invadere = to invade. 1 : of, relating to, or characterized by military aggression 2 : tending to spread ; especially : tending to invade healthy tissue 3 : tending to infringe 4 : involving entry into the living body
Background image of page 2
What is an invasive species ? “A non-native organism that causes economic or environmental harm” o -definition of the Invasive Species Council of California o Est. annual cost to CA - $3B Not all exotic species are harmful: e.g. European honey bee , rice, wheat, cattle, poultry
Background image of page 3

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

View Full DocumentRight Arrow Icon
Invasive In biology – the movement of an organism into a new area or range. Often causes problems for agriculture, nature, and public health.
Background image of page 4
What’s a species? Review: Species The smallest grouping of organisms capable of reproduction and the production of fertile offspring
Background image of page 5

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

View Full DocumentRight Arrow Icon
Definitions Range The areas where a species occurs Understanding distribution is important Ranges are dynamic in time and space
Background image of page 6
Range There is a natural range… …and for many species that are pests there is an expanded range (e.g. African locusts) The expanded range often includes areas that would normally be inaccessible except for the aid of man
Background image of page 7

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

View Full DocumentRight Arrow Icon
Location: Biogeography Species that occur where they naturally evolved are referred to as native Species that have moved from their area of evolutionary origin, either accidentally or purposefully, are referred to as invasive or exotic
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 38

16 Invasive Species - INSECT INVASIONS TFTD: Invasive...

This preview shows document pages 1 - 9. Sign up to view the full document.

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