1. What is the primary characteristic of mollisols and in what biome is it found?
2. Name and define 3 different types of savannas.
3. If the population of a keystone species rapidly decreases, what is the effect on the ecosystem? What happens with an indicator species?
1. characterized by a dark surface layer rich in organic matter & high concentrations of calcium & magnesium. Highly organic matter soil found in grasslands
2.Edaphic savannas are caused by soil conditions & are not entirely maintained by fire. Climatic savannas are a result of climatic conditions. Derived Savannas are a result of people clearing forest land for cultivation. Farmers cut down trees, burn them & plant crops in the ashes. Grass then takes over the bare ground (it grows very fast & has deep roots to soak up water.). Annual fires maintain the area as a savanna. The soil is porous with rapid drainage of water. There’s a thin layer of humus (organic plant material) that provides vegetation with nutrients. The predominant vegetation consists of grasses & forbs. Different savannas support different grasses due to disparities in rainfall & soil. Deciduous trees & shrubs are scattered across the open landscape.
3. overall population of ecosystem decrease. the health of the ecosystem decreases
Re: Ecology B/C
Posted: February 19th, 2018, 6:53 am
by kate!
MattChina wrote:
kate! wrote:
1. What is the primary characteristic of mollisols and in what biome is it found?
2. Name and define 3 different types of savannas.
3. If the population of a keystone species rapidly decreases, what is the effect on the ecosystem? What happens with an indicator species?
1. characterized by a dark surface layer rich in organic matter & high concentrations of calcium & magnesium. Highly organic matter soil found in grasslands
2.Edaphic savannas are caused by soil conditions & are not entirely maintained by fire. Climatic savannas are a result of climatic conditions. Derived Savannas are a result of people clearing forest land for cultivation. Farmers cut down trees, burn them & plant crops in the ashes. Grass then takes over the bare ground (it grows very fast & has deep roots to soak up water.). Annual fires maintain the area as a savanna. The soil is porous with rapid drainage of water. There’s a thin layer of humus (organic plant material) that provides vegetation with nutrients. The predominant vegetation consists of grasses & forbs. Different savannas support different grasses due to disparities in rainfall & soil. Deciduous trees & shrubs are scattered across the open landscape.
3. overall population of ecosystem decrease. the health of the ecosystem decreases
Correct, your turn (also you pretty much just copied and pasted our notesheet for the second question, you could have given more concise answers.)
Re: Ecology B/C
Posted: February 19th, 2018, 7:14 am
by MattChina
Find the Simspon's Index of Diversity from the following numbers.
Species #
Woodrush 2
Holly 8
Bramble 1
Yorkshire Fog 1
Sedge 3
Re: Ecology B/C
Posted: February 24th, 2018, 10:47 am
by Fillychi
MattChina wrote:Find the Simspon's Index of Diversity from the following numbers.
Species #
Woodrush 2
Holly 8
Bramble 1
Yorkshire Fog 1
Sedge 3
Is it about 0.34? I may have gotten the formula wrong.
Question:
What are some purposes of having large front paws for a badger in grasslands?
Re: Ecology B/C
Posted: February 24th, 2018, 11:31 am
by MattChina
Fillychi wrote:
MattChina wrote:Find the Simspon's Index of Diversity from the following numbers.
Species #
Woodrush 2
Holly 8
Bramble 1
Yorkshire Fog 1
Sedge 3
Is it about 0.34? I may have gotten the formula wrong.
Question:
What are some purposes of having large front paws for a badger in grasslands?
yeah thats correct
Re: Ecology B/C
Posted: February 24th, 2018, 12:19 pm
by kate!
Fillychi wrote:Question: What are some purposes of having large front paws for a badger in grasslands?
Badgers who live in grasslands have large front paws to burrow in the ground and build dens, to catch prey, and to dig up plants.
Re: Ecology B/C
Posted: February 24th, 2018, 12:54 pm
by allopathie
Excluding habitat loss, identify three effects of deforestation on an ecosystem.
Re: Ecology B/C
Posted: February 24th, 2018, 1:35 pm
by kate!
allopathie wrote:Excluding habitat loss, identify three effects of deforestation on an ecosystem.
In case you didn't see, Fillychi was supposed to tell me if my answer was wrong or right and then it would have been my turn to ask a question. It's okay, though, because I'm answering this one and I'll write the next one.
1) increase in carbon dioxide
2) species extinction
3) loss of biodiversity
Re: Ecology B/C
Posted: February 26th, 2018, 11:16 am
by Fillychi
kate! wrote:
allopathie wrote:Excluding habitat loss, identify three effects of deforestation on an ecosystem.
In case you didn't see, Fillychi was supposed to tell me if my answer was wrong or right and then it would have been my turn to ask a question. It's okay, though, because I'm answering this one and I'll write the next one.
1) increase in carbon dioxide
2) species extinction
3) loss of biodiversity
Real sorry about that. You were correct.
Re: Ecology B/C
Posted: March 4th, 2018, 8:17 am
by kate!
Sorry, forgot it was my turn to ask a question.
1. What are 3 major hot and dry deserts?
2. Explain the 2 parts of acid deposition.
3. Name 1 difference between primary and secondary succession.