1 / 11

Climate Change & Invasive Species Many Questions, a Few Answers and Much to be Determined!

Climate Change & Invasive Species Many Questions, a Few Answers and Much to be Determined!. Climate change is underway, and to some extent, no matter what actions we take as a global community, its continued progress is guaranteed. An invasive species Non-native

stian
Download Presentation

Climate Change & Invasive Species Many Questions, a Few Answers and Much to be Determined!

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Climate Change & Invasive Species Many Questions, a Few Answers and Much to be Determined!

  2. Climate change is underway, and to some extent, no matter what actions we take as a global community, its continued progress is guaranteed

  3. An invasive species • Non-native • Negatively impacts other species • Reduces biodiversity • Interrupts the natural functions of an ecosystem Invasive Species can be: Plants Birds Insects Pathogens Amphibians Crustaceans Mammals Mollusk Reptile Fish

  4. How Climate change facilitates the spread of invasive species Increasing frequency of extreme weather events Ability to alter critical components of natural systems such as temperature precipitation atmospheric composition land cover

  5. What do invasive plants do?

  6. Invasive Plants in Riparian Areas PLUS! Changes in light/shade patterns over stream

  7. CLIMATE CHANGE & INVASIVE SPECIES WARMER TEMPERATURES Hydrillaverticillatamay increase growth rates and biomass in elevated temperatures (Chen, 1994) • Southern invasive species marching northward • Example: Aerial view of a Southern Pine Beetle infestation. It is expanding northward with milder winters, killing trees &increasing fire risk • Expanded ranges - previously unable to overwinter (10% rule) • Growing season extended - plants may move without natural predators • Tropical pets - increased survival • Pathogens - increased reproduction

  8. CLIMATE CHANGE & INVASIVE SPECIES INCREASED STORM EVENTS • Flooding & erosion • Greater dispersal of upstream invasive species to downstream habitats • Example: lesser celandine can regrow from plant fragments • Facilitate the escape of harmful species from aquaculture • Example: escape of Asian carp into the Mississippi River

  9. CLIMATE CHANGE & INVASIVE SPECIES INCREASED CARBON DIOXIDE • Increased CO2 seems to favor growth of invasive species, in particular vines • Bigger plants = more seeds + better seed dispersal • Stronger roots = stronger herbicides • Major factor vine growth: freezing temperatures Poison Ivy Increase CO2 = more leaf & stem production + more urushiol

  10. CLIMATE CHANGE & INVASIVE SPECIES IMPACTS ON NATIVE SPECIES • Changes in range • Changes in timing of natural events • Widespread forest loss (drought & warming create vulnerable trees) • Diminished habitat for native animals from dryer or wetter areas

  11. CLIMATE CHANGE & INVASIVE SPECIES WHAT SHOULD WE BE DOING? • Prevent the spread of new (emerging) invasive species • Learn which species are present in small numbers in your watershed • Learn which species are likely to invade your watershed • The Keys • Monitoring • Early Detection • Rapid Response • More Monitoring • The Tools • New Jersey Invasives • New Jersey Invasive Species Control • Sweat Equity • Grow Natives

More Related