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

Demonstrate the counselling process in the form of role play, Q. Demonstrat...

Q. Demonstrate the counselling process in the form of role play? Role playing refers either to the unconscious changing of one's behavior to assume a social role or roles in lif

Differences between prokaryotic & eukaryotic cells, DIFFERENCES BETWEEN PRO...

DIFFERENCES BETWEEN PROKARYOTIC & EUKARYOTIC CELLS   S . N o .   CHA R AC T ERS   P R O K AR Y O T I C CELL

Catecholamines, Catecholamines increase activation of Ca 2+ via beta-adren...

Catecholamines increase activation of Ca 2+ via beta-adrenergic receptors and the adenyl cyclase system. Dopamine has both alpha and beta and dopaminergic effects.  Its beta ef

Explain about dry heat sterilization, Q. Explain about Dry heat sterilizati...

Q. Explain about Dry heat sterilization? It is used to sterilize glass ware, forceps, scissors, scalpels, all glass syringes, swabs, some pharmaceuticals products such as liqui

Explain the management of furcal perforation, Explain the Management of Fur...

Explain the Management of Furcal Perforation 1 st isolate the perforation site. If the perforation is mechanical accidentally occurred:   a- It is probably

Is transpiration the only way by which leaves lose water, Is transpiration ...

Is transpiration the only way through which leaves lose water? Plants do not only lose water as vapor, as by transpiration. The leaves also lose liquid water by a phenomenon c

What is probing depth, What is Probing depth Probing depths can be infl...

What is Probing depth Probing depths can be influenced by the tissue type- shallow depths are associated with a keratinized collar, whereas deeper depths are associated with mo

Find the equilibrium molality of solute species, Find the equilibrium molal...

Find the equilibrium molality of solute species? Consider a hypothetical system in which two aqueous solutions are separated by a semipermeable membrane. Solution α is prepared

What is the trace element, What is a trace element and how are they importa...

What is a trace element and how are they important in organisms, give an example.

Absorbing surface of the small intestine is increased, State three ways in ...

State three ways in which the absorbing surface of the small intestine is increased.   The absorbing surface of the small intestine is increased by:- (a) being very long

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