Abstract:
:The ubiquity of lead in our environment, its toxic nature and its potential to alter behavior of humans and animals has stimulated much research. In addition to the well known, but complex, changes in activity and performance of learned tasks following exposure to lead, an increasing body of literature suggests that changes in social behavior also occur. This study examined the impact of ingesting a 0.5% lead acetate solution (as the only available fluid)--a protocol that results in ca. 100 micrograms/dl blood-levels in our Binghamton Heterogenous (HET) mice--on food competition in both male and female HET mice. Effects of this lead exposure on cricket predation by the same HET mice also were observed. Our results from the food competition study (Experiment I) show, compared with water controls, that such exposure to lead increases both food possession time and amount of social contact after food consumption; but very little agonistic behavior took place in either the water control or lead-exposed competition testing sessions. In the cricket predation observations (Experiment II) there was a tendency for lead exposure to reduce the latency of males to attack, and the indication that lead-exposed females initially attacked a cricket's legs more often than any of the other groups. In fact, suggestions of such gender x treatment interactions occurred in both the food competition and the predation work. Overall, we believe our results, in conjunction with other relevant literature, suggest that exposure to lead reduced the individual's general fitness, even when levels are relatively low.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Hahn ME,Burright RG,Donovick PJdoi
10.1016/0031-9384(91)90014-fsubject
Has Abstractpub_date
1991-10-01 00:00:00pages
757-64issue
4eissn
0031-9384issn
1873-507Xpii
0031-9384(91)90014-Fjournal_volume
50pub_type
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