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

Which hormones produced by ovaries and testicles, Q. What are the hormones ...

Q. What are the hormones produced by the ovaries and the testicles? The testicles make androgenic hormones, the major of them being testosterone. The ovaries produce progestero

What is the lymphatic system, What is the lymphatic system? The lymphat...

What is the lymphatic system? The lymphatic system is a network of specialized valved vessels that drain interstitial fluid (lymph). The lymphatic system is also responsible fo

Anticoagulant therapy, Anticoagulant therapy To prevent blood clottin...

Anticoagulant therapy To prevent blood clotting on the valve, patients with prosthetic valves require life long anticoagulant therapy. The patient is put on oral antico

Annelids - regeneration in invertebrates, Annelids - Regeneration in Invert...

Annelids - Regeneration in Invertebrates Between the segmented worms both the polychaetes and oligochaetes have remarkable powers of regeneration. Leeches totally lack this ca

What is joints in human biology, What is Joints Joints are locations...

What is Joints Joints are locations where two or more bones come together, or articulate. Bones are joined with varying degrees of rigidity. Joints may be fixed, as in the s

What is the structure of the adult fern, What is the structure of the adult...

What is the structure of the adult fern within which cells undergoing meiosis can be found? In these plants meiosis takes place within structures known as sorus (plural, sori),

Define about the metabolism of selenium compounds, Define about the Metabol...

Define about the Metabolism of Selenium compounds? Selenium compounds' are generally very efficiently absorbed by humans and selenium absorption does not appear to be' under ho

Compute how much of the absorbance of the bsa, For a sample containing both...

For a sample containing both protein and nucleic acid, the absorbance measured at a particular wavelength will be the sum of contributions from both types of molecule. Using the pr

Cells, what are the buildings blocks of life?

what are the buildings blocks of life?

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