The purpose of this paper is the morphometric study as well as the assessment of population structure of the Testudo hermani tortoise in the Vlora area. Individuals are collected in the study area. A morphometric stud...The purpose of this paper is the morphometric study as well as the assessment of population structure of the Testudo hermani tortoise in the Vlora area. Individuals are collected in the study area. A morphometric study is made for the caught individuals. Suitable habitats have been identified for their growth and development. It is estimated the number of healthy or unhealthy individuals, dead individuals and also the identification of the local population＇s threatening factors. Individuals with anomalies are studied and then compared with normal individuals, especially in terms of the number and shape of the dermal plates.展开更多
The differences of bionomics and ecologics of the two populations of Callosobruchus chinensis on mung bean (Vigna radiatus) at six constant temperatures ( 20, 25, 28, 30, 32, 35℃) and 75% r. h. were researched. ANOV...The differences of bionomics and ecologics of the two populations of Callosobruchus chinensis on mung bean (Vigna radiatus) at six constant temperatures ( 20, 25, 28, 30, 32, 35℃) and 75% r. h. were researched. ANOVA showed that temperature affected the developmental period and fertility significantly (P<0.05). T-test indicated there was significant difference of the combined immature stages between the two geographical populations at 25 and 32℃ (P<0.05). The average oviposition between the two geographical populations differed significantly at the same temperature (P<0.05). At 30℃ and 75% r. h., effects of 5 commercially grown legume seeds on development and reproduction of the two geographical populations of Callosobruchus chinensis (L.) were researched. The results showed that broad bean and soybean were more suitable for increase for Xichang population in terms of r m values. The adult weight and diameter of emergency hole of the two populations were also compared. According to the differences in the characteristics of development, reproduction, and damage to host seeds between the two geographical populations, conclusion can be drawn that both are different geographical populations.展开更多
Behavioral research has long had an important role in the conservation of terns （Ayes： Stemidae）. Habitat management and restoration of breeding colony sites depends on knowledge of the cues used to select colony a...Behavioral research has long had an important role in the conservation of terns （Ayes： Stemidae）. Habitat management and restoration of breeding colony sites depends on knowledge of the cues used to select colony and nest sites. For example, conspecific attraction with playback and decoys is commonly used to bring terns to suitable colony sites and habitat modification is often used to increase the availability of suitable nest sites. Tern colonies are interconnected by dispersal, and a metapopulation approach is needed for effective management. Population dynamics are therefore affected by behaviors that influence the frequency of movement among colony sites： site fidelity, natal and breeding dispersal, and group adherence. The monogamous breeding system of terns should keep effective population size similar to census population size, but variation in sex ratios （likely resulting from sex differences in behavior） and in parental quality can result in a smaller than expected effective population size. In addition to the behavior of terns, knowledge of the behavior of predators on terns contributes to management plans, because predator behavior can sometimes be manipulated and predation is often performed by only a few specialized individuals. Other examples of links between tern behavior and conservation are also briefly reviewed, such as behavioral toxicology research and studies of behavioral responses to human disturbance and manmade structures. More work is needed on the behavior of migratory terns at staging sites, stopover sites and wintering grounds, and on the behavior of less well-studied species and species in less well-studied geographic regions [Current Zoology 60 （4）： 500-514, 2014].展开更多
During the week-long National Day holiday(October 1-7),nearly 480 million tourist trips were made by Chinese people,a yearon-year increase of more than 10 percent,according to the latest survey from the China Tourist ...During the week-long National Day holiday(October 1-7),nearly 480 million tourist trips were made by Chinese people,a yearon-year increase of more than 10 percent,according to the latest survey from the China Tourist Academy.The figure 480 million represents a larger number than the populations of Germany,France,U.K.,Italy,Spain and Japan combined.展开更多
文摘The purpose of this paper is the morphometric study as well as the assessment of population structure of the Testudo hermani tortoise in the Vlora area. Individuals are collected in the study area. A morphometric study is made for the caught individuals. Suitable habitats have been identified for their growth and development. It is estimated the number of healthy or unhealthy individuals, dead individuals and also the identification of the local population＇s threatening factors. Individuals with anomalies are studied and then compared with normal individuals, especially in terms of the number and shape of the dermal plates.
文摘The differences of bionomics and ecologics of the two populations of Callosobruchus chinensis on mung bean (Vigna radiatus) at six constant temperatures ( 20, 25, 28, 30, 32, 35℃) and 75% r. h. were researched. ANOVA showed that temperature affected the developmental period and fertility significantly (P<0.05). T-test indicated there was significant difference of the combined immature stages between the two geographical populations at 25 and 32℃ (P<0.05). The average oviposition between the two geographical populations differed significantly at the same temperature (P<0.05). At 30℃ and 75% r. h., effects of 5 commercially grown legume seeds on development and reproduction of the two geographical populations of Callosobruchus chinensis (L.) were researched. The results showed that broad bean and soybean were more suitable for increase for Xichang population in terms of r m values. The adult weight and diameter of emergency hole of the two populations were also compared. According to the differences in the characteristics of development, reproduction, and damage to host seeds between the two geographical populations, conclusion can be drawn that both are different geographical populations.
文摘Behavioral research has long had an important role in the conservation of terns （Ayes： Stemidae）. Habitat management and restoration of breeding colony sites depends on knowledge of the cues used to select colony and nest sites. For example, conspecific attraction with playback and decoys is commonly used to bring terns to suitable colony sites and habitat modification is often used to increase the availability of suitable nest sites. Tern colonies are interconnected by dispersal, and a metapopulation approach is needed for effective management. Population dynamics are therefore affected by behaviors that influence the frequency of movement among colony sites： site fidelity, natal and breeding dispersal, and group adherence. The monogamous breeding system of terns should keep effective population size similar to census population size, but variation in sex ratios （likely resulting from sex differences in behavior） and in parental quality can result in a smaller than expected effective population size. In addition to the behavior of terns, knowledge of the behavior of predators on terns contributes to management plans, because predator behavior can sometimes be manipulated and predation is often performed by only a few specialized individuals. Other examples of links between tern behavior and conservation are also briefly reviewed, such as behavioral toxicology research and studies of behavioral responses to human disturbance and manmade structures. More work is needed on the behavior of migratory terns at staging sites, stopover sites and wintering grounds, and on the behavior of less well-studied species and species in less well-studied geographic regions [Current Zoology 60 （4）： 500-514, 2014].
文摘During the week-long National Day holiday(October 1-7),nearly 480 million tourist trips were made by Chinese people,a yearon-year increase of more than 10 percent,according to the latest survey from the China Tourist Academy.The figure 480 million represents a larger number than the populations of Germany,France,U.K.,Italy,Spain and Japan combined.
