Field Trip Presentations

You all know that you will be required to do a "presentation" while we are on the rive on our field trip. I have been intentionally vague about what you should do because I want you to have the flexibility to (1) learn about a topic you are interested in and (2) share that info with your classmates in an interesting way. Unfortunately, we won't have a long enough extension chord to use Powerpoint, so you will have to settle for leading your class around the campfire, in a beautiful canyon, or at a scenic overlook.

In light of Daisy's suggestion that it would be a good idea for you to know what each other is doing, I have prepared this Field Trip Presentation post. This post will allow you to stake your claim to a topic, share ideas, and get feedback from your classmates.

Daisy's Got Dibs

So far Daisy has claimed the always popular topic of "periphyton"! If you wanted to talk about algae then you will have to buy the rights to this topic from her (I suggest $400).

Daisy- while I was being a smart-a@@ looking for a photo of periphyton to post, I came across a couple of websites that might actually be useful to you.

http://www.epa.gov/bioiweb1/html/periphyton.html

http://www.cplbookshop.com/contents/C2472.htm

Salt Cedar/ Tamarisk

Salt cedar is one of the most important invasive species in riparian zones in the western US. Last year we saw extensive stands of tamarisk along the Rio Grande in Big Bend. Jordan said that the large flood last fall removed a lot of these plants so I am interested in seeing how things have changed from one year to the next.

Further Viewing

Here is a link to the slide show that I presented in class

http://www.slideshare.net/secret/CxG30GwOj6yRr7

Expected Learning Outcomes

By the end of this class a fully engaged student should be able to

- discuss the effects of tamarisk invasion on riaprian communities
- discuss various tamarisk control strategies

Invasive Species

Invasive species are an important threat to biodiversity and can be very costly to humans.

Further Reading

1) Invasive Species- http://www.eoearth.org/article/Invasive_species

2) Marine Invasive species - http://www.eoearth.org/article/Marine_invasive_species

3) Aquatic Invasive Species- http://www.eoearth.org/article/Aquatic_invasive_species

4) Invasion Fact Sheet- http://www.eoearth.org/article/Invasion_fact_sheet

5) Invasive Species Slideshow- http://www.slideshare.net/secret/bL1TCLiLtoH5Np


Expected Learning Outcomes

By the end of this course a fully engaged student should be able to

- discuss threats caused by invasive species
- discuss strategies to exclude or eliminate invasive species
- discuss some invasive species in Texas

Disturbance Ecology

Because of the high frequency of floods along most rivers and streams, disturbances have important effects on stream and riparian communities.

Further Reading

1) Here is a link to a chapter entitled - The response of animals to disturbance and their roles in patch generation. that Mike Willig and I wrote for a book Ecosystems of Disturbed Ground. The first portion of this chapter talks about our view of disturbance

http://hydrodictyon.eeb.uconn.edu/people/willig/Willig_pdf/094.Willig&McGinley.1999.pdf

2) The Fire Ecology Factsheet- http://www.eoearth.org/article/Fire_ecology_fact_sheet

3) Slideshow

http://www.slideshare.net/secret/bL1TCLiLtoH5Np

Expected Learning Outcomes

By the end of this course a fully engaged student should be able to

- define disturbance
- list examples of disturbances
- distinguish between a disturbance and a disaster
- discuss the characteristics of a disturbance regime
- discuss some adaptations of organisms to disturbances
- discuss why disturbances are natural parts of many ecosystems
- discuss the intermediate disturbance hypothesis
- discuss issues related to flooding

Stream Organisms

Slideshows

Stream Organisms- http://www.slideshare.net/secret/ujFa7mhgkON9lY

Ecosystem Processes - http://www.slideshare.net/secret/LhSMUxfsgG6Gop

Further Readings

Freshwater biomes- http://www.eoearth.org/article/Freshwater_biomes

Differences between terrestrial and aquatic environments- http://www.eoearth.org/article/Differences_between_aquatic_and_terrestrial_environments

Adaptations of marsh plants
http://www.eoearth.org/article/Adaptations_of_marsh_plants

Aquatic plants
http://www.eoearth.org/article/Aquatic_plants

Common aquatic insects
http://www.eoearth.org/article/Common_aquatic_insects

Stream Organisms

Expected Learning Outcomes

By the end of this course a fully engated student should be able to

- discus aquatic autotrophs including periphyton and macrophytes
- discus adaptations of aquatic plants to life in the stream
- discus adaptations of stream insects to stream environments
- discus the importance of phylogenetic classification
- be familiar with the aquatic and terrestrial stages of the common insect orders
- distinguish between holometabolous and hemimetabolous life histories and discuss potential advantages of the two lifestyles


Ecosystem Process and the River Continuum Concept

Expected Learning Outcomes

By the end of this course a fully engaged student should be able to

- distinguish between allochthanous and authochthanous inputs of organic matter
- distinsguish between different forms of organic matter- DOM, FPOC, CPOC
- discuss the ecological roles played by aquatic invertebrates
- discus the relationship between stream order and the river continuum concept

A student from my BIOL 1404 class sent me a link to this video. It seems like almost all of ecology is going on in this video. The highlight of my biology life was visiting Kruger Park when I was about 13 (how sad to peak so young). I saw lots of amazing animals, but I didn't see anything like this. Enjoy!

http://www.youtube.com/watch?v=LU8DDYz68kM

Review for the First Midterm

Let's meet in the Honors Forum on the first floor of McClellan Hall at 5:30 on Wednesday February 4th.

This will be a question and answer session so come with questions.