Download presentation
Presentation is loading. Please wait.
Published byLenard McGee Modified over 8 years ago
1
emester Final Exam F 5/14 from 9am-noon in... Q&A Th 5/13 TBA
2
Primary Succession after glacier retreat, 150-300 years Fig 54.22
3
Secondary Succession of a field (20 yrs)
4
Human vs Natural Disturbances
5
Fig 56.21 Restoration Ecology- human involvement in recovering from a disturbance.
6
Fig 1: Enhancement of Biodiversity and Ecosystem Services by Ecological Restoration: A Meta-Analysis J M Rey Benayas, A C Newton, A Diaz, J M Bullock Science 28 August 2009: Vol. 325. no. 5944, pp. 1121 - 1124 What limits the success of restoration? Niche Disappearance, Invasive Species, and Climate Change
7
Fig 1. Ecological Restoration and Global Climate Change (2006) J. Harris, R. Hobbs, E. Higgs, and J. Aronson. Restoration Ecology 14: 170–176 Normal disturbances cause changes within a certain range, climate change may drive change beyond normal ranges
8
Fig 1: Enhancement of Biodiversity and Ecosystem Services by Ecological Restoration: A Meta-Analysis J M Rey Benayas, A C Newton, A Diaz, J M Bullock Science 28 August 2009: Vol. 325. no. 5944, pp. 1121 - 1124 What limits the success of restoration? Niche Disappearance, Invasive Species, and Climate Change
9
Fig 56.21 Why would active restoration be chosen over passively allowing succession?
10
Ecological Restoration benefits on a large scale Restoration of the Mississippi Delta: Lessons from Hurricanes Katrina and Rita J W Day, Jr et al.Science 23 March 2007: Vol. 315. no. 5819, pp. 1679 - 1684
11
Storm surge, damage, and deaths were less where coastal wetlands are intact Restoration of the Mississippi Delta: Lessons from Hurricanes Katrina and Rita J W Day, Jr et al.Science 23 March 2007: Vol. 315. no. 5819, pp. 1679 - 1684
12
Future storm damage could be reduced by reestablishing coastal wetlands. Restoration of the Mississippi Delta: Lessons from Hurricanes Katrina and Rita J W Day, Jr et al.Science 23 March 2007: Vol. 315. no. 5819, pp. 1679 - 1684
13
Future storm damage could be reduced by reestablishing coastal wetlands, cost $5-$17 billion Restoration of the Mississippi Delta: Lessons from Hurricanes Katrina and Rita J W Day, Jr et al.Science 23 March 2007: Vol. 315. no. 5819, pp. 1679 - 1684
14
What are the two most basic resources necessary for biodiversity?
15
Restoring ecosystems must begin with the basics: water and space
16
Kissimmee River, Florida- Had been turned into a 90 km canal. About 24 km of the river has been restored. Fig 56.23
17
Rhine River, Europe- dredging for ships reduced biodiversity. Side channels are being reintroduced to allow species to recover. Fig 56.23
18
Water cycle Fig 55.14
19
Stream restoration in urban catchments through redesigning stormwater systems: looking to the catchment to save the stream C. Walsh, T. Fletcher, and A. Ladson J. N. Am. Benthol. Soc., 2005, 24(3):690–705
20
Restoration of streams degraded by urbanization has usually been attempted by enhancement of instream habitat or riparian zones.
23
The primary degrading process to streams in many urban areas is impervious cover
24
The direct connection of impervious surfaces to streams means that even small rainfall events can produce sufficient surface runoff to cause frequent disturbance.
25
Where impervious surfaces are not directly connected to streams, small rainfall events are intercepted and infiltrated.
26
http://www.brevstorm.org/watershed.cfm
27
A wet retention pond to filter pollutants and buffer and maintain stream flow
28
http://www.brevstorm.org/watershed.cfm Roadside ditches can increase water filtration
29
http://www.brevstorm.org/watershed.cfm Baffle boxes to store water and remove sediment
30
http://www.brevstorm.org/watershed.cfm Inlet screens for filtering large debris
31
http://www.brevstorm.org/watershed.cfm
36
Restoration of streams degraded by urbanization has usually been attempted by enhancement of instream habitat or riparian zones.
37
The use of alternative drainage methods, which maintain a near-natural frequency of surface runoff from the catchment, is the best approach to stream restoration in urban areas.
38
Two ways to think about the world: atoms molecules organelles cells tissues organs systems organisms ecosystem Reductionism holism planet
39
Ecological Interconnections
40
emester Final Exam F 5/14 from 9am-noon in... Q&A Th 5/13 TBA
Similar presentations
© 2024 SlidePlayer.com Inc.
All rights reserved.