Lecture 15 (Surrounding ecosystems)

Question 1

Magroves

Answer 1

1) Salt-tolerant plants
2) 69 species (have different salt tolerations)
3) Reproduce by viviparity (seeds fully develop while attached to tree, fall into water with root, eventually reach shallows and plant root)

Question 2

Zonation according to salt tolerance for different species of mangroves

Answer 2

1) Most tolerant = buttonwood
2) Least tolerant = red mangrove

Question 3

Mangroves can tolerate _________ conditions

Answer 3

anaerobic (different mangroves have different adaptations)

Question 4

Mangroves prevent their water loss due to their ____ ______

Answer 4

waxy leaves (transpiration and zonation

Question 5

Mangroves serve as important fish _________

Answer 5

nurseries

Question 6

Mangroves impact on ecosystems

Answer 6

1) Traps terrestrial runoff
2) Large microbial community
3) Nutrient exporter to reef

Question 7

Seagrass beds

Answer 7

1) Submerged aquatic vegetation (angiosperms)
2) Photosynthetic
3) Ecosystem engineers
4) Nutrient importers