Death at the Zoo: The Media, Science, and Reality

Media characterizations of zoo and aquarium animal deaths were randomly monitored on the internet for a 20-month period (September 2003–May 2005). Based on 148 samples collected, it was possible to classify articles into one of four categories, which were operationally defined: 1) dispassionate observers; 2) accusers; 3) sympathizers; and 4) balancers. In addition, with the […]

Asian Elephants Are Not Self-sustaining in North America

Demographic analysis of the captive Asian elephants in North America indicates that the population is not self-sustaining. First year mortality is nearly 30%, but perhaps more important, the fecundity is extremely low (Mx = 0.01–0.02) throughout the prime reproductive years. Without continued importation or a drastic increase in birth rates, the Asian elephant population in […]

Comparative mortality levels among selected species of captive animals

We present life tables by single year of age and sex for groups of animals and for 42 individual mostly mammalian species. Data are derived from the International Species Information System. The survivorship of most of these species has never been mapped systematically. We demonstrate that, in most of the groups, female survivorship significantly exceeds […]

Reproductive parameters in captive hand-reared black-bellied sandgrouse

Abstract 10.1002/zoo.20185.abs Flock breeders of black-bellied sandgrouse originated from wild-laid eggs collected in west central Morocco in 2003 and 2004, were hatched, and hand-reared in captivity in the framework of a reinforcement population program. Three to five pairs of different ages were housed in an aviary. Egg-pulling procedure was used and eggs incubated artificially. Breeding […]

Captive breeding for reintroduction: influence of management practices and biological factors on survival of captive kaki (black stilt)

Abstract 10.1002/zoo.20065.abs An important component of the restoration strategy for the critically endangered kaki or black stilt (Himantopus novaezelandiae) is captive breeding for release. Since 1981 1,879 eggs were collected from wild and captive pairs, with birds laying up to four clutches. Eggs were incubated artificially and most chicks reared by hand until released as […]

Relationships between patterns of Fecal corticoid excretion and behavior, reproduction, and environmental factors in captive black (Diceros bicornis) and white (Ceratotherium simum) rhinoceros

Abstract 10.1002/zoo.20050.abs Mortality is high in zoo-housed black rhinoceros (Diceros bicornis), and the reproductive rates of captive white rhinoceros (Ceratotherium simum) are unsustainably low. To determine the possible role of stress in the causation of these problems, we analyzed weekly fecal samples collected for 1 year from black (10 males and 16 females) and white […]

State of the North American African elephant population and projections for the future

Abstract 10.1002/1098-2361(2000)19:53.3.CO;2-F The African elephant has historically received less attention in the captive community than the Asian elephant. One manifestation of this lack of attention is that only 25 African elephant calves had been born in captivity in North America as of 1 January 1999. With the recent attention to both elephant species, it is […]

Observations on reproduction, hormones, copulatory behavior, and neonatal mortality in captive Lemur mongoz (Mongoose lemur)

Abstract 10.1002/zoo.1430110204.abs This study examines correlates of reproduction in Lemur mongoz, an endangered prosimian primate with a history of poor captive reproduction. Male testicular growth and regression were quantified via testicular indices (TI). Although TIs could be used to predict male breeding condition, they were not indicators of ability to sire offspring. Serum estradiol (E2) […]

Breeding orangutans at Perth Zoo: Twenty years of appropriate husbandry

Abstract 10.1002/zoo.1430090212.abs The Perth Zoo orang-utan husbandry strategy, which has been the foundation of 20 years of success in breeding, health, and longevity, is based on respect for the solitary arboreal nature of the species. The orang-utans are housed singly at night and fed only in their night dens. Diets are based on the weight […]

Status and reproductive potential of lion-tailed macaques in captivity

Abstract 10.1002/zoo.1430080503.abs Publication of a studbook for Macaca silenus in 1983 provides detailed demographic information on the captive North American population. These data indicate that females reach sexual maturity at about 4 years of age, whereas onset of reproduction for males occurs at age 5. One-third of all sexually mature females and 57% of sexually […]