Environmental and Conservation Biology

Can someone explain how to find virulence, recovery rate, and transmission rate?

Can someone explain how to find virulence, recovery rate, and transmission rate?

I'm reviewing rates for models of infectious diseases and as part of my homework I need to find virulence, recovery rate, and transmission rate. However, I can't find sources that explain them. Most give the symbol in an equation like thres

genomal   1062   N/A

genomal

Fe(II)/(III) measurements in soil- conversion between units- help needed!

Fe(II)/(III) measurements in soil- conversion between units- help needed!

Hello everyone,

As title states, I am currently working on a project which requires measurements of Iron concentration within soil material. The procedure itself is quite complex, but calculations/conversions between units is even more so.

Igsmo   3213   N/A

Igsmo

Where did the "hollow curve" from biogeography get its name?

Where did the "hollow curve" from biogeography get its name?

By "hollow curve" I mean the plot of fraction of species vs area of species range.

A.Montenegro   460   N/A

A.Montenegro

Riding along the road on your bicycle, you make a sharp right turn, hit some gra

Riding along the road on your bicycle, you make a sharp right turn, hit some gra

Riding along the road on your bicycle, you make a sharp right turn, hit some gravel, and tumble to the ground striking your shoulder. You are in a lot of pain. Worrying that you might have broken your shoulder blade or a rib, you walk your bike to th

shortie062   717   N/A

shortie062

The conditions represented in this figure illustrate

The conditions represented in this figure illustrate

The conditions represented in this figure illustrate
A: A temperature inversion
B:  how high levels of ozone affect climate near the ground
C: the greenhouse effect
D: stratospheric smog

Post M

shortie062   424   N/A

shortie062

How could I prepare chelex treated 0.5M potassium phosphate buffer pH- 7.4?

How could I prepare chelex treated 0.5M potassium phosphate buffer pH- 7.4?

I'm now doing the dtt assay but I don't know how to prepare 0.5M potassium phosphate buffer pH- 7.4 and I would like to know the differences between PB and PBS.

Sandar   337   N/A

Sandar

Explain why measurement of single cell activity would be important versus just measuring

Explain why measurement of single cell activity would be important versus just measuring

Explain why measurement of single cell activity would be important versus just measuring total bacterioplankton community activity in relation to the following influences: a) temporal factors, b) DOM quality & sources, c) influence of predators.

yayscience92   317   N/A

yayscience92

Should we restore Yellow Stone Park as our flagship National Park, to include the natural predators

Should we restore Yellow Stone Park as our flagship National Park, to include the natural predators

Picture added of my case study. PLEASE HELP

melissa1225   390   N/A

melissa1225

The following diagrams all show the same comet orbit, but each one shows the comet passing through ...

The following diagrams all show the same comet orbit, but each one shows the comet passing through ...

The following diagrams all show the same comet orbit, but each one shows the comet passing through a different segment of its orbit around the Sun. During each segment, a line drawn from the Sun to the comet sweeps out a triangular-shaped, shad

stephanie.jaso   617   N/A

stephanie.jaso

Ontario's population (as shown in surveys) in the 1980's seemed to place a premium on:

Ontario's population (as shown in surveys) in the 1980's seemed to place a premium on:

Ontario's population (as shown in surveys) in the 1980's seemed to place a premium on:

a. Preservation of lifestyle
b. Government deficits
c. Energy shortages
d. Consumption cuts
e. Aging population

cloveb   410   N/A

cloveb

According to the plant manager in the video field trip to the Kanahapa Water Reclamation Facility in ...

According to the plant manager in the video field trip to the Kanahapa Water Reclamation Facility in ...

According to the plant manager in the video field trip to the Kanahapa Water Reclamation Facility in Gainsville, FL, that was shown in class, the correct order for the treatment process at the plant is:

   A.   
bug farming; sand filters

cyrustan   695   N/A

cyrustan

Principles of bioresource conservation and management.

Principles of bioresource conservation and management.

Give a brief introduction on your neighbourhood and three surrounding neighbourhoodneighbourhoods. Also explain what is meant by bio-resources, vegetative and non-non - vegetative bio-resources.

Sizacle   430   N/A

Sizacle

Principles of bioresource conservation and management

Principles of bioresource conservation and management

Identify and provide evidence  (photographs,sketches or illustration )of five vegetative bio-resources found in your neighbourhood and three surrounding neighbourhoods.

Sizacle   536   N/A

Sizacle

Given the information from the first table, how can I calculate the population projection table?

Given the information from the first table, how can I calculate the population projection table?

What calculations do I need to perform to fill out the blank table? Thanks.

jca4019   153   N/A

jca4019

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical ...

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical ...

[html]correct the grammar.Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this

tibrbk   174   N/A

tibrbk

Rare Species

Rare Species

Hey! I found your website advertised on Biology Topix, I really need help with this question:

Outline and explain the three criteria for determining rare species. Include examples that fit each of the criteria.

Can you help me g

sineandcosine   2675   1 Reply

duddy

Tajima's D

Tajima's D

Is there any one value expected for tajima's D for a locus evolving under the neutral theory of evolution?  If so, what is it and why? 

I don't understand how a value is determined to be low enough to be suggestive of

Polymorphism   3934   1 Reply

bio_man

r and K Strategies

r and K Strategies

Here is an excellent animation that describes this!

http://glencoe.mcgraw-hill.com/sites/9834092339/student_view0/chapter55/an

sarah!   1350   1 Reply

bio_man

lethal dominant alleles

lethal dominant alleles

Under what circumstances might a lethal dominant allele perisist in a population?  Give an example in humans.

confused_student   2645   1 Reply

bio_man

changes in the frequency of a lethal dominant allele

changes in the frequency of a lethal dominant allele

What changes would you expect to see in the frequency of a lethal dominant allele within a population over many generations?  Why?

confused_student   2206   1 Reply

bio_man

Strip cropping and oil handling...?

Strip cropping and oil handling...?

What are the ENVIRONMENTAL benefits of
(i) strip cropping
(ii) heavy fines for breaking the rules concerning oil handling.


Thanks in advance Any help is greatly appreciated 

grandefratello   2119   1 Reply

bio_man

How can pollutants affect food chains and ecosystems?

How can pollutants affect food chains and ecosystems?

Need help... How can pollutants affect food chains and ecosystems?

padre   2957   1 Reply

star

The Aral Sea

The Aral Sea

The Aral Sea is an excellent example of habitat transformation in an aquatic system. Define habitat transformation and discuss why the Aral Sea is a good example.

judd   765   1 Reply

star

Outline and explain the three criteria for determining rare species.

Outline and explain the three criteria for determining rare species.

Outline and explain the three criteria for determining rare species. Include examples that fit each of the criteria.

judd   1043   1 Reply

star

Identify three problems that can blur the definition of a species.

Identify three problems that can blur the definition of a species.

Identify three problems that can blur the definition of a species. Give an example of each.

judd   1093   1 Reply

bio_man

ecological principle

ecological principle

Explain which of the following ecological principles could be active in each particular situation. More than one may apply.

Ecological principles:

predation     realized niche     fundamental niche
competitive exclusi

NAZ   4349   1 Reply

bio_man

Introduction to Ecology and the Biosphere (2)

Introduction to Ecology and the Biosphere (2)

1. Briefly explain the six different levels of ecology.

2. One of the most influential individuals of the environmental movement was Rachel Carson. What was her contribution to ecology and environmental issues?

3. Abiotic factor

Ashmo   28024   1 Reply

bio_man

Knowing what you have learned about energy and nutrient dynamics in an ecosystem, explain the follow

Knowing what you have learned about energy and nutrient dynamics in an ecosystem, explain the follow

1.    Knowing what you have learned about energy and nutrient dynamics in an ecosystem, explain the following statement. “ Plants can get along without animals, but animals can’t exist without plants.”

2.   We now have over 6 billion people on

Ashmo   2514   1 Reply

bio_man

Conservation Biology and Restoration Ecology

Conservation Biology and Restoration Ecology

1.   Explain the three levels of biodiversity.

2.   Explain the three threats to biodiversity.

3.   What is habitat fragmentation? How is it caused and how can we remedy it?

4.   What is Restoration ecology? Give some example

Ashmo   1589   1 Reply

bio_man

What effects can a disturbance have on a community?

What effects can a disturbance have on a community?

1. A particularly popular island vacation site is home to many species of orchids. The primary income generating businesses on the island are tourism and orchid sales. Disturbance: To make the island more attractive to visitors, a local politician su

ppk   3774   1 Reply

bio_man

Boreal forest of Canada

Boreal forest of Canada

In the boreal forest of Canada, wildfires are important disturbance factors. A single wild fire seldom burns the whole forest. Instead it burns large patches or stands and leaves others untouched. Following a wildfire in a black spruce forest, there

ppk   3150   1 Reply

bio_man

Island biogeography & Lizard Species

Island biogeography & Lizard Species

A research scientist comes back from a study of a group of islands in the South Pacific. He says that his data show that in some cases, the smaller islands he investigated had higher numbers of lizard species on them than did the larger
islands.

ppk   2082   1 Reply

duddy

Energy is lost at every step in the trophic structure where energy is transferred—for example, ...

Energy is lost at every step in the trophic structure where energy is transferred—for example, ...

Energy is lost at every step in the trophic structure where energy is transferred—for example, from primary producers to primary consumers. It is estimated that only 1% of the solar energy striking plants is converted to chemical energy, only 50–90%

ppk   2080   1 Reply

duddy

Net primary productivity question

Net primary productivity question

You have been monitoring the net primary productivity (NPP) of a grassland area for several years. Over the years, NPP increased initially and then leveled off. You suspect that the availability of a nutrient is limiting productivity.

a. D

ppk   3746   1 Reply

robertling

Explain human population growth in terms of carrying capacity.

Explain human population growth in terms of carrying capacity.

Explain human population growth in terms of carrying capacity. How does this differ from organisms that exist in natural ecosystems? Explain how population growth for human populations is a problem.

Jermain_   6427   1 Reply

chemb

What specific population characteristics do demographers study?

What specific population characteristics do demographers study?

What specific population characteristics do demographers study? Why is it important to study these things?

Jermain_   7755   1 Reply

bio_man

What three-factor model is used for representing the impact on environment?

What three-factor model is used for representing the impact on environment?

What three-factor model is used for representing the impact on environment? What is a fourth factor that could be added to this? Give a simple explanation for each factor and describe what it means in terms of human impacts on the environment.

Jermain_   4371   1 Reply

duddy

Why do environmentalists such as Paul Ehrlich view unchecked population growth

Why do environmentalists such as Paul Ehrlich view unchecked population growth

Why do environmentalists such as Paul Ehrlich view unchecked population growth as a problem?

Jermain_   4213   1 Reply

biolove

Briefly explain how the status of women affects population growth.

Briefly explain how the status of women affects population growth.

Briefly explain how the status of women affects population growth.

Jermain_   3096   1 Reply

biolove

What social challenges are posed by a pyramid?shaped versus an inverted...

What social challenges are posed by a pyramid?shaped versus an inverted...

What social challenges are posed by a pyramid?shaped versus an inverted pyramid-shaped age structure diagram?

Jermain_   4338   1 Reply

biolove