摘要:

AbstractRadio‐tracking equipment designed by the late G. E. Ashwell is described. Detailed instructions are given for building transmitters suitable for foxes and rats so that the circuits can be made by people with only limited electronic knowledge. Constructional details are also provided for receiver aerials. The address of a firm that can supply receivers is given. The function and performance of each part of the equipment is described and details provided of the methods used by the authors to track mammals. The handling of mammals and attachment of transmitters is covered briefly. Some comments are included on the limitations of radio‐tracking as a means of studying wild mamm

ISSN:0305-1838    

DOI:10.1111/j.1365-2907.1978.tb00223.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

AbstractThe information on population structure, fluctuations, natality, mortality, and spatial distribution of wild Harvest mouse populations is reviewed from the published literature. In addition, information gathered during a recent live trapping study is brought forward to provide both corroborative and new evidence to increase the knowledge of the demography of this species. Populations are characterized by high reproductive rate and low survival rate. Harvest mice populations undergo great changes in density, both seasonally and from year to year. Adult females produce normally one or two litters during their lifetime. Reproduction is achieved by the young of the year and four generations may breed within one breeding season. Climatic factors control the length of the breeding season in addition to affecting greatly (coupled with predation) the length of life. Survival is low, the longest lived individuals survive only one winter. Harvest mice have been shown, on the basis of live trapping, to live within small home ranges and several of these may overlap.

ISSN:0305-1838    

DOI:10.1111/j.1365-2907.1978.tb00224.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

AbstractPublished studies relating to captive Harvest mouse biology are frequently descriptive. The biology of reproduction is the most studied aspect and many details of courtship, gestation, nest building, breeding rate and development of the young are now understood. Other aspects of the biology, including social behaviour, sensory abilities and food eaten are discussed. Data from various sources concerning the daily activity rhythm and the metabolism of Harvest mice are compared.

ISSN:0305-1838    

DOI:10.1111/j.1365-2907.1978.tb00225.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

AbstractThe known distributions ofA. sylvaticusandA. flavicolliswere examined with respect to four woodland classifications and two soil types. The distributionof A. flavicollisin Britain is associated with drier areas and with the distribution of mature, deciduous woodland.A. sylvaticusis found in both wet and dry areas and is distributed independently of deciduous woodland.

ISSN:0305-1838    

DOI:10.1111/j.1365-2907.1978.tb00226.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

ISSN:0305-1838    

DOI:10.1111/j.1365-2907.1978.tb00227.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY