title: Dynamics of dog and cat populations in a community.
abstract: OBJECTIVE
  To describe dynamics of the pet dog and cat populations in a single community in terms of reproductive patterns and turnover.
  
  
  METHODS
  Cross-sectional, random-digit dial telephone survey.
  
  
  METHODS
  Information gathered from 1,272 households in St Joseph County, Ind that owned a dog or cat between Dec 1, 1993 and Nov 30, 1994 was compared with data on 9,571 dogs and cats received by the Humane Society of St Joseph County during the same period.
  
  
  RESULTS
  Prevalence of pet ownership was lower than expected, compared with consumer panel surveys. Eight hundred forty-three of 1,335 (63.1%) dogs were neutered, compared with 816 of 1,023 (79.8%) cats. Cost was cited as a reason that 35 of 441 (7.9%) dogs and 34 of 132 (25.8%) cats were not neutered. Only 33 of 968 (3.4%) dog-owning households reported that their dog had had a litter during the past year, whereas 52 of 662 (7.9%) cat-owning households reported their cat had had a litter of kittens. Most cat litters were unplanned, whereas two thirds of dog litters were planned. Annual turnover in owned pets was 191 of 1,354 (14.1%) dogs and 194 of 1,056 (18.4%) cats. Pet owners underreported relinquishing pets to a shelter in the telephone survey.
  
  
  CONCLUSIONS
  A combination of animal shelter- and human population-based data are needed to describe pet population dynamics in a community. Information about species-specific reproductive patterns is essential in designing population control programs.
authors.affiliation: Department of Veterinary Pathobiology, School of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA.
authors.forename: G J
authors.initials: GJ
authors.lastname: Patronek
authors.forename: A M
authors.initials: AM
authors.lastname: Beck
authors.forename: L T
authors.initials: LT
authors.lastname: Glickman
mesh_terms: D000827:Animal Welfare; D000818:Animals; D001947:Breeding / Q000706:statistics & numerical data; D002369:Castration / Q000706:statistics & numerical data / Q000662:veterinary; D002415:Cats / Q000502:physiology* / Q000601:surgery; D003625:Data Collection; D004285:Dogs / Q000502:physiology* / Q000601:surgery; D005260:Female; D007182:Income; D007196:Indiana; D008297:Male; D010067:Ownership / Q000191:economics / Q000706:statistics & numerical data; D011157:Population Dynamics; D015995:Prevalence; D013689:Telephone