Survival rate: You have a point there. More favourable conditions certainly will lead to higher survival rate. But less breeding grounds is not seen to be a lacuna for them. It has been seen that thousands of larvae and pupae living in earthen pots as small as 2-3 litre volume. More over, have observed a mosquito flying from one wall to the opposite one of a room (3 meters wide) in less than 2 seconds, another one flying above the head of a person for ninety (90) minutes continuously and most of us know that one full meal is sufficient for 6-7 days. With all these, flying a few meters/kilometers is not at all a problem for them and will not have to lay in dry ground and wait for rain to come (much later or early). It is also noticed that once they locate a water body they lay large number of eggs in a single session. This may mean they get sufficient time to fly around and locate a water body to lay eggs.
It is true that mosquitoes will lay eggs in the first suitable water body they locate, but it need not be close to where they bit . Even though Aedes mosquito is a day biter (only?) biting someone in the streets is unlikely as people in streets will be on their move mostly. It has been noticed that a mosquito landing on a prey and biting it fly away at the slightest movement of the prey's body. (It takes 70-90 seconds to fill their belly with blood.) More over biting is not immediately followed by egg laying. Egg growth takes one week and blood protein is used for the genetic development of the egg. So egg laying is likely to take place only after one week of blood meal. Most of them feed at night and breed (lay) during day.
In spite of having rubbish every where since we expect only rain(which comes much later) to provide droplets of clear water in it what difference will the existance of rubbish make? More over if the rubbish is bio-degradable the rain water being collected in it is most unlikely to be clear/pure to attract Aedes mosquito.
In the absence of rubbish which collects rain water, if mosquito has to fly further there seems to have no reason why the new location found out may be less favourable; it can very well be more favourable one as well.
Survival rate: You have a
Survival rate: You have a point there. More favourable conditions certainly will lead to higher survival rate. But less breeding grounds is not seen to be a lacuna for them. It has been seen that thousands of larvae and pupae living in earthen pots as small as 2-3 litre volume. More over, have observed a mosquito flying from one wall to the opposite one of a room (3 meters wide) in less than 2 seconds, another one flying above the head of a person for ninety (90) minutes continuously and most of us know that one full meal is sufficient for 6-7 days. With all these, flying a few meters/kilometers is not at all a problem for them and will not have to lay in dry ground and wait for rain to come (much later or early). It is also noticed that once they locate a water body they lay large number of eggs in a single session. This may mean they get sufficient time to fly around and locate a water body to lay eggs.
It is true that mosquitoes will lay eggs in the first suitable water body they locate, but it need not be close to where they bit . Even though Aedes mosquito is a day biter (only?) biting someone in the streets is unlikely as people in streets will be on their move mostly. It has been noticed that a mosquito landing on a prey and biting it fly away at the slightest movement of the prey's body. (It takes 70-90 seconds to fill their belly with blood.) More over biting is not immediately followed by egg laying. Egg growth takes one week and blood protein is used for the genetic development of the egg. So egg laying is likely to take place only after one week of blood meal. Most of them feed at night and breed (lay) during day.
In spite of having rubbish every where since we expect only rain(which comes much later) to provide droplets of clear water in it what difference will the existance of rubbish make? More over if the rubbish is bio-degradable the rain water being collected in it is most unlikely to be clear/pure to attract Aedes mosquito.
In the absence of rubbish which collects rain water, if mosquito has to fly further there seems to have no reason why the new location found out may be less favourable; it can very well be more favourable one as well.