Explain the methods of entrainment to food and survival, Biology

Assignment Help:

Methods of entrainment to food and survival advantages

Because of weak zeitgeber of light (during winter and summer months where there is very little change in photoperiod, while in autumn, photoperiod decreases rapidly) and only periodic access to food during winter months, it is advantageous for birds to be more strongly entrained to food as a zeitgeber to anticipate its availability
Having food as the main zeitgeber also means a longer feeding period in autumn (when day length is rapidly decreasing) than if controlled by light. This enables better fat stores before winter.
In spring the birds may stock up on food to facilitate successful reproduction before competitors (other non-resident birds) arrive back.

Related Discussions:- Explain the methods of entrainment to food and survival

Properties of fatty acid, A fatty acid having of a hydrocarbon chain and a ...

A fatty acid having of a hydrocarbon chain and a terminal carboxylic acid group that is shown in the figure. Most fatty acids are in biology have an even number of carbo

The eye refract the light, Which parts of the eye refract ('bend') the ligh...

Which parts of the eye refract ('bend') the light in such a way as to form an image on the retina? The curved surface of the cornea, and the aqueous humour enclosed by it,

Islet of langerhans, Islet of Langerhans: They are insulin-producing tissue...

Islet of Langerhans: They are insulin-producing tissues. It was discovered by Paul Langerhans in 1869. These cells are in groups and look like islands in the pancreas. There are ab

How can amine groups be classified, Q. How can amine groups be classified? ...

Q. How can amine groups be classified? Amines can be classified into primary amines, those to which one -R (variable radical) is attached to a -NH 2 , secondary amines, those w

Define premotor cortex located in the frontal lobes, Q. Define Premotor Cor...

Q. Define Premotor Cortex Located in the frontal lobes? Premotor Cortex - Involved in control of more complex, learned motor skills like writing, driving, etc. Broca's area or

What are the techniques of rastelli operations, What are the Techniques of ...

What are the Techniques of rastelli operations ? After median sternotomy pericardial patch is harvested and then cardiopulmonary bypass instituted using aortic and bicaval cann

Describe ecological importance of fungi, Q. What is the ecological importan...

Q. What is the ecological importance of fungi? Fungi are decomposers and heterotrophs they break down dead beings and they actively participate in the recycling of organic mate

Pvcs during recovery, As the heart rapidly slows during recovery from exerc...

As the heart rapidly slows during recovery from exercise, PVCs commonly occur and usually have no clinical significance. This may be a time when metabolic adjustments in the heart

Explain about the sensory neuropathy, Explain about the Sensory Neuropathy ...

Explain about the Sensory Neuropathy There is decreased sensory perception by foot for any external stimuli making foot prone to various injuries. Due to lack of pain does not

Gas exchange and cellular respiration, Q What is the difference between res...

Q What is the difference between respiration meaning gas exchange and cellular respiration? Respiration meaning gas exchange is the process in which an organism absorbs from th

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages