摘要:

AbstractFluoride, originating either naturally from rocks and soil or from modern industrial processes, can cause severe and crippling damage in humans and animals. In vertebrate species, the skeleton is particularly susceptible; outgrowths on bones and fusion of joints cause lameness and lack of mobility. Teeth may be badly worn and damaged, often losing their enamel. The occurrence and effects of fluoride in wild mammals are reviewed.

ISSN:0305-1838    

DOI:10.1111/j.1365-2907.1988.tb00077.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

AbstractElectric fences are cheaper than conventional fences and, because of this, they are being used increasingly to manage mammals. Initial investigatory behaviour at the fence, defensive reactions immediately after shock, and long‐term modifications in behaviour as a result of learning, have been reviewed. This paper (i) suggests that designs of electric fences should take account of animal behaviour and (ii) reviews management solution

ISSN:0305-1838    

DOI:10.1111/j.1365-2907.1988.tb00078.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

Book reviewed in this article:ANIMAL BEHAVIOUR. By Mark RidleyTHE SECRET WORLD OF BATS. By John and Molly Hines

ISSN:0305-1838    

DOI:10.1111/j.1365-2907.1988.tb00079.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

AbstractIt is generally believed that British Common Seals mate after the moult, in late summer. In contrast, evidence from other parts of their range suggests that mating occurs before the moult, at the end of lactation. This paper reviews the evidence for the timing of mating from all parts of the range of this species, and presents data on seasonal changes in male sexual behaviour at a haulout site in Orkney, U.K. British Common Seals do mate at the end of lactation, as in other areas; the presumed precopulatory display described in previous studies is more likely to have been play between juveniles or sub‐adult

ISSN:0305-1838    

DOI:10.1111/j.1365-2907.1988.tb00080.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

Book reviewed in this article:MORPHOGENESIS OF THE MAMMALIAN SKULL. Edited by H.‐J. Kuhn and U. ZellerSEX and FRIENDSHIP IN BABOONS. By Barbara Boardman SmutsTHE ECOLOGY and BIOLOGY OF MAMMAL‐LIKE REPTILES. Edited by N. Hotton, III, P. D. MacLean, J. J. Roth and E. C.

ISSN:0305-1838    

DOI:10.1111/j.1365-2907.1988.tb00081.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY