phylaxis, and especially those of the Royal Society Reports to the Malaria Committee, 1 have been struck by the absolute absence ol mention of" wind" as a very serious factor to contend with. Observations have been made on the flight ol the mosquito aud the utmost distance allowed is half mile. As several observers agree to this distance according to the observations they have made, the conclus...

Effective conservation is often informed by focal species studies to identify beneficial land management interventions. For nocturnal or cryptic species, quantifying habitat use across individually marked animals can allow unbiased assessment of intervention efficacy and other important habitats. Here, using a landscape-scale experiment, we examine whether interventions intended create nesting ...

In approximately 3.2% of bird species individuals regularly forgo the opportunity to breed independently and instead breed cooperatively with other conspeci¢cs, either as non-reproductive `helpers' or as co-breeders. The traditional explanation for cooperative breeding is that the opportunities for breeding independently are limited owing to peculiar features of the species' breeding ecology. H...

Foraging skills of young individuals are assumed to be inferior to those of adults. The reduced efficiency of naive individuals may be the primary cause of the high juvenile mortality and explain the deferment of maturity in long-lived species. However, the study of juvenile and immature foraging behaviour has been limited so far. We used satellite telemetry to compare the foraging movements of...

regarding the importance of rice fields, as the main mosquito breeding places, use of chemical larvicides has been under consideration in malaria eradication programs. in this trial, oms 786 was used, to study the method and cost of application of this larvicide in the rice fields. two form of larvicides (1% sand granule, and 50% e.c.) were used in four formulations. (10 and 15 kg. of 1% s.g./h...

Animals have to adjust their physiology to seasonal changes, in response to variation in food availability, social tactics and reproduction. I compared basal corticosterone and testosterone levels in free ranging striped mouse from a desert habitat, comparing between the sexes, breeding and philopatric non-breeding individuals, and between the breeding and the non-breeding season. I expected di...