Understanding the foraging behavior is essential for investigating seabird ecology and conservation,as well as monitoring the well-being of the marine environment.Breeding seabirds adopt diverse foraging strategies to...Understanding the foraging behavior is essential for investigating seabird ecology and conservation,as well as monitoring the well-being of the marine environment.Breeding seabirds adopt diverse foraging strategies to maximize energy gains and cope with the intensified challenges of parenting and self-maintenance.Such tradeoff may stem from the heterogeneity of food resources and the constraints of central place foraging.Nevertheless,abundant marine productivity could alleviate the energy limitation for seabirds,resulting in a consistent foraging approach.Here,we investigated the foraging strategy during the breeding season of a cryptic small-sized seabird,Swinhoe’s Storm-petrel(Hydrobates monorhis),in the Yellow Sea,a productive marginal sea of the Northwest Pacific.Using GPS tracking,we evaluated habitat preference,quantified the foraging strategy,and tested if environmental conditions and individual traits influence foraging trips.We found that Swinhoe’s Storm-petrels preferred nearshore areas with shallow water and engaged in primarily short foraging trips.Distinctive southeastward and southwestward strategies emerged when combining trip metrics,including foraging direction,duration,and maximum distance.The bathymetry,proximity to the coastline,and sea surface temperature differed in two foraging strategies.Foraging strategies exhibited flexibility between individuals,potentially explained by wing morphology,in which longer-winged birds are more likely to embark on longer-distance foraging trips.These findings highlight the impact of environmental factors and individual traits on seabirds’foraging decisions in productive marginal sea ecosystems.Our study also provides valuable insights into the foraging ecology of this Asian endemic storm-petrel.展开更多
There has been a growing health concern in the United States and Canada due to physical inactivity and obesity. In response to these health concerns, fitness centers have been growing in popularity. The successful mar...There has been a growing health concern in the United States and Canada due to physical inactivity and obesity. In response to these health concerns, fitness centers have been growing in popularity. The successful marketing strategy of fitness clubs requires the identification of a target market and development of a marketing mix （product/service, place, price and promotion） that will best satisfy the needs of this target market. This qualitative research was conducted to investigate whether there were differences in the marketing strategies implemented by fitness clubs to meet the needs of consumers. The research method consisted of a census of the 20 fitness clubs in the contiguous regions of southern Quebec and northeastern New York/northwestern Vermont. Each fitness center was visited by multiple observers. Systematic observations using a grid of 51 variables were compiled for each establishment. The results found many similarities in marketing strategies, however, differences were found in the place and personal selling variables. The New York/Vermont fitness clubs tended to be located in better, more visible locations, while Quebec fitness clubs had better establishment atmospherics and personal selling strategies. New York/Vermont fitness clubs could benefit from improving their establishment d6cor, lighting, scent management, music selections, and cleanliness. Their service could include more customization, empathy with their customers＇ needs, reservations, and customer satisfaction policies. Their sales personnel could be trained to better approach their customers, to make the sale, and to dress in more professional fitness clothing. Quebec fitness clubs could increase their fitness club visibility through outdoor signage, parking facilities, and more promotion.展开更多
基金supported by the National Natural Science Foundation of China(T2350005 to YL)。
文摘Understanding the foraging behavior is essential for investigating seabird ecology and conservation,as well as monitoring the well-being of the marine environment.Breeding seabirds adopt diverse foraging strategies to maximize energy gains and cope with the intensified challenges of parenting and self-maintenance.Such tradeoff may stem from the heterogeneity of food resources and the constraints of central place foraging.Nevertheless,abundant marine productivity could alleviate the energy limitation for seabirds,resulting in a consistent foraging approach.Here,we investigated the foraging strategy during the breeding season of a cryptic small-sized seabird,Swinhoe’s Storm-petrel(Hydrobates monorhis),in the Yellow Sea,a productive marginal sea of the Northwest Pacific.Using GPS tracking,we evaluated habitat preference,quantified the foraging strategy,and tested if environmental conditions and individual traits influence foraging trips.We found that Swinhoe’s Storm-petrels preferred nearshore areas with shallow water and engaged in primarily short foraging trips.Distinctive southeastward and southwestward strategies emerged when combining trip metrics,including foraging direction,duration,and maximum distance.The bathymetry,proximity to the coastline,and sea surface temperature differed in two foraging strategies.Foraging strategies exhibited flexibility between individuals,potentially explained by wing morphology,in which longer-winged birds are more likely to embark on longer-distance foraging trips.These findings highlight the impact of environmental factors and individual traits on seabirds’foraging decisions in productive marginal sea ecosystems.Our study also provides valuable insights into the foraging ecology of this Asian endemic storm-petrel.
文摘There has been a growing health concern in the United States and Canada due to physical inactivity and obesity. In response to these health concerns, fitness centers have been growing in popularity. The successful marketing strategy of fitness clubs requires the identification of a target market and development of a marketing mix （product/service, place, price and promotion） that will best satisfy the needs of this target market. This qualitative research was conducted to investigate whether there were differences in the marketing strategies implemented by fitness clubs to meet the needs of consumers. The research method consisted of a census of the 20 fitness clubs in the contiguous regions of southern Quebec and northeastern New York/northwestern Vermont. Each fitness center was visited by multiple observers. Systematic observations using a grid of 51 variables were compiled for each establishment. The results found many similarities in marketing strategies, however, differences were found in the place and personal selling variables. The New York/Vermont fitness clubs tended to be located in better, more visible locations, while Quebec fitness clubs had better establishment atmospherics and personal selling strategies. New York/Vermont fitness clubs could benefit from improving their establishment d6cor, lighting, scent management, music selections, and cleanliness. Their service could include more customization, empathy with their customers＇ needs, reservations, and customer satisfaction policies. Their sales personnel could be trained to better approach their customers, to make the sale, and to dress in more professional fitness clothing. Quebec fitness clubs could increase their fitness club visibility through outdoor signage, parking facilities, and more promotion.
