Community gradients and boundaries, Biology

Assignment Help:

Community Gradients and Boundaries

It is often difficult or impossible to determine where one community ends and the next begins. Many communities, in fact, grade continuously into each other with no sharp boundaries. For example, if two forests, pine forest and spruce forest are nearby, one cannot see the boundaries between them. But if one moves from one end of the pine forest to the other end of spruce forest, one can observe difference in species composition between the two; yet one cannot demarcate a sharp boundary between these two forest communities.

There are, however, instances where sharp boundaries between the communities are seen, especially where the physical environment changes abruptly - for example, at the transition between aquatic and terrestrial habitats between distinct soil types, or between north-facing and south-facing slopes of a mountain.


Related Discussions:- Community gradients and boundaries

Surface Processes on Earth, Which of the following is not a type of mass mo...

Which of the following is not a type of mass movement that results from the force of gravity? A. Landslide B. Creep C. Deflation D. Mudflow

Explain food plan for an anaemic pregnant lady, Explain Food plan for an an...

Explain Food plan for an anaemic pregnant lady? Justification of the Plan: The plan is for an anaemic pregnant lady, from a lower socio-economic level and doing moderate lev

Describe inflammation and atherosclerosis, Describe Inflammation and Athero...

Describe Inflammation and Atherosclerosis  ? It has recently been stated that atherosclerosis is clearly an inflammatory disease and does not result simply from the accumulatio

Illustrate the metabolism of cornea, Illustrate the metabolism of cornea? ...

Illustrate the metabolism of cornea? Metabolism of Cornea: The corneal epithelium plays several roles in the process of image formation. Its apical cell border interacts

Blood calcium ion homeostasis, In detail , how does the body maintains the ...

In detail , how does the body maintains the blood calcium ion homeostasis ( including the description of negative feedback system, organs and hormones involved) What is osteoporosi

Define neurological disorders of non- nutritional etiology, Define Neurolog...

Define Neurological disorders of non- nutritional etiology? Some of the common disorders are Alzheimer's disease, Parkinson's disease, epilepsy, and spinal and neuro trauma.

Submerged stage - hydrarch, Submerged Stage - Hydrarch This habitat wh...

Submerged Stage - Hydrarch This habitat which is now shallower and is richer in nutrients and where light is available up to a certain depth, becomes suitable for the growth o

What are the nitrogen wastes, Q What are the nitrogen wastes? Nitrogen ...

Q What are the nitrogen wastes? Nitrogen wastes are residuals derived from the degradation of proteins and they are made from chemical transformation of the amine group of amin

Determine the excitation threshold concerning neurons, How different are th...

How different are the concepts of action potential, resting potential and excitation threshold concerning neurons? Action potential is the maximum positive voltage level achiev

What is the window phase of an infection, What is the window phase of an in...

What is the window phase of an infection? How is this concept important for the test of HIV infection in blood banks? The primary immune response of the body facing any infecti

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd