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Questions tagged [ecology]

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6
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1answer
45 views

How can half a degree of average temperature result in such devastating impact on coral reefs?

Yesterday I read a number of news stories about the new IPCC's (International Panel on Climate Change) report regarding the current state of global warming. It reported that we are on track for ...
1
vote
0answers
50 views

Would the Gaia hypothesis have any practical use?

I recently stumbled upon the Gaia hypothesis, which briefly states that the Earth itself is a living organism. I am wondering: Would this hypothesis have any practical use? Does it make any ...
0
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0answers
22 views

Canopy conductance of Corn and soybean?

I am using canopy conductance in a physical model to generate evapotranspiration. Currently, I am using values from the literature. Those values are too high. What is maximum canopy conductance of ...
0
votes
1answer
356 views

Prevailing winds between 30 to 60 degrees latitude [duplicate]

Prevailing winds are generated by Coriolis effects. I think I understand why NE winds are the prevailing winds in 0 to 30 degrees and 60 to 90 degrees latitude in the northern hemisphere (e.g., ...
2
votes
0answers
18 views

In search of California ecosystem vegetation field guide

I am searching for an illustrated naturalist handbook to coastal California vegetation (trees, shrubs, wildflowers) organized by ecosystem. For example, there might be sections for coastal dunes (...
8
votes
2answers
73 views

Is the impact of carbon emision dependent on the location on the earth?

While I was reading how the EU taxes aviation companies based on carbon emissions it occurred to me that the effect of carbon emissions on global temperature etc. may depend on where the carbon is ...
18
votes
3answers
5k views

Do volcanos really create fertile soil?

I'm developing an ecology for a portion of my world that's geologically active and I remembered hearing that volcanic ash in soil makes it more fertile to agriculture. After extensive googling I've ...
8
votes
1answer
136 views

Timeline of Himalayas/Tibetan plateau formation

Note: edited based on helpful comments. In Walking with Cavemen, Robert Winston claims an African rainforest existed 8 mya, but by 4 mya it was gone. He attributes this to newly Himalayas-triggered ...
3
votes
1answer
67 views

Result of deterioration of vegetation

I had this question in my previous exam, it says: Deterioration of vegetation resulted by overgrazing results in...... 1.desert encroachment. 2.change in climate. I had to choose 1 or 2 ...
9
votes
1answer
1k views

How does the Coriolis effect affect rivers and estuaries

I'm quite confused about this since it is said to influence major currents in the sea the winds to the formation of gyres in the ocean and as well as influencing the weather at times due to the planet'...
3
votes
0answers
25 views

Methods in researching loss of natural habitat

What methods are there to research loss of natural habitat? I know of supervised image classification in GIS but what other methods are commonly used in research?
1
vote
0answers
15 views

Categories for supervised classification, wildlife analysis

I am using GIS to undertake a small research on the loss of natural habitat in north England. I will be using Supervised Classification where I train the system on a few examples, e.g. shallow water ...
3
votes
0answers
84 views

Connections between marine and terrestrial ecosystems [closed]

First I would like to note that I have only very basic understanding of ecology, biology and paleontology so I can easily miss something very simple. I can envision certain ways marine and ...
4
votes
3answers
162 views

Lack of annual slash-and-burn in North America?

In many areas of South America, Africa, India and Southeast Asia, "slash-and-burn" agriculture is employed whereby every year the stubble from the previous year is burned along with other live ...
3
votes
1answer
72 views

Making Sense of Coldwater Ocean Currents

The basic understanding of ocean currents is that warm currents carry moisture whereas cold currents carry nutrients. This is why some scientists believe in the connection between the Arctic ice caps ...
5
votes
1answer
119 views

Why haven't weeds overtaken the entire planet?

Given how rapidly weed plants spread and grow, choking out all other plant life, how come after millions of years we haven't ended with forests full of thistle or pokeweed, as opposed to pines or oak ...
5
votes
1answer
227 views

What would happen if the same soil received waste water contaminants for a long time?

I know that soil is used to filter septic systems within our treatment system, however what happens to this soil that is used in filtration, I know it would be changed every once in a while but what ...
3
votes
1answer
84 views

High Discharge Value in SWAT modelling

At first run I’ve encountered the problem since the values of modeled and observed discharge are significantly different. The correlation between them is nearly 0,2...
8
votes
1answer
238 views

How do I estimate the mass of a deciduous tree's leaves?

Regarding the amount of biomass in a tree, what would be the approximate total mass of leaves on a large deciduous tree (e.g. maple, oak) while green in spring? Or, how many leaves could be on such a ...
2
votes
1answer
55 views

How significant is organic cotton agriculture to the USA's total global ecological footprint?

The ecological footprint of a human activity can be measured in global hectares (gha). Cotton's ecological footprint to produce one ton of product ranges from 2.17 gha for organic cotton to 3.57 gha ...