American Journal of Primatology
SCIE-ISI SCOPUS (SonsInc.)
0275-2565
1098-2345
Mỹ
Cơ quản chủ quản: John Wiley & Sons Inc. , WILEY
Lĩnh vực:
Ecology, Evolution, Behavior and SystematicsAnimal Science and Zoology
Các bài báo tiêu biểu
Social learning of diet and foraging skills by wild immature Bornean orangutans: implications for cultureAbstract Studies of social learning in the wild are important to complement findings from experiments in captivity. In this field study, immature Bornean orangutans rarely foraged independently but consistently followed their mothers' choices. Their diets were essentially identical to their mothers' even though not all mothers had the same diet. This suggests vertic... ...
Tập 72 Số 1 - Trang 62-71 - 2010
Mechanical properties of foods used in experimental studies of primate masticatory function
Tập 67 Số 3 - Trang 329-346 - 2005
Immigration and hybridization patterns of yellow and anubis baboons in and around Amboseli, KenyaAbstract In 1986, Samuels and Altmann reported evidence for a hybrid zone between Papio anubis and Papio cynocephalus in Amboseli, Kenya, in a baboon population that has been the subject of long‐term study since 1971 [Samuels & Altmann, International Journal of Primatology 7:131–138, 1986]. In the current rep... ...
Tập 53 Số 4 - Trang 139-154 - 2001
Female weight and reproductive condition in a population of olive baboons (Papio anubis)Abstract The study reported here tested Altmann's prediction [Baboon Mothers and Infants. Cambridge, Harvard University Press, 1980] that lactating female baboons endure a weight loss. Data from 64 adult female olive baboons (Papio anubis ) residing in six troops in Kenya revealed that reproductive condition was related to weight. Lactating... ...
Tập 12 Số 2 - Trang 189-195 - 1987
Variation in fecal testosterone levels, inter‐male aggression, dominance rank and age during mating and post‐mating periods in wild adult male ring‐tailed lemurs (Lemur catta)Abstract In primate species exhibiting seasonal reproduction, patterns of testosterone excretion in adult males are variable: in some species, peaks correlate with female receptivity periods and heightened male–male aggression over access to estrous females, in others, neither heightened aggression nor marked elevations in testosterone have been noted. In this study... ...
Tập 69 Số 12 - Trang 1325-1339 - 2007
Primate population studies at Polonnaruwa. II. Heritability of body measurements in a natural population of toque macaques (Macaca sinica)Abstract The heritability of quantitative traits, or the proportion of phenotypic variation due to additive genetic or heritable effects, plays an important role in determining the evolutionary response to natural selection. Most quantitative genetic studies are performed in the laboratory, due to difficulty in obtaining genealogical data in natural populations. Gen... ...
Tập 27 Số 2 - Trang 145-154 - 1992
Possible audience effect in thomas langurs (primates; presbytis thomasi): An experimental study on male loud calls in response to a tiger modelAbstract Recent research indicates that animal vocalizations can refer to objects in the outside world, and that call production may be controlled by the sender depending on the type of audience involved. Our research on wild male Thomas langurs (Primates: Presbytis thomasi ) shows that these males call as a response to a tiger model when t... ...
Tập 60 Số 4 - Trang 155-159 - 2003
Patterns of female dominance in Propithecus diadema edwardsi of Ranomafana national park, MadagascarAbstract Many lemur species are characterized by some form of female dominance, ranging from female feeding priority to complete female dominance, although this is a rare trait in primates and other mammals. The status of the Milne‐Edwards' sifaka (Propithecus diadema edwardsi ), a diurnal lemur, is ambiguous. Some short‐term studies have f... ...
Tập 61 Số 4 - Trang 173-185 - 2003
Inbreeding depression in non‐human primates: a historical review of methods used and empirical dataAbstract Offspring born to related parents may show reduced fitness due to inbreeding depression. Although evidence of inbreeding depression has accumulated for a variety of taxa during the past two decades, such analyses remain rare for primate species, probably because of their long generation time. However, inbreeding can have important fitness costs and is likel... ...
Tập 69 Số 12 - Trang 1370-1386 - 2007
Coming of age: steroid hormones of wild immature baboons (Papio cynocephalus)Abstract Large gaps exist in our knowledge about common patterns and variability in the endocrinology of immature nonhuman primates, and even normal hormonal profiles during that life stage are lacking for wild populations. In the present study we present steroid profiles for a wild population of baboons (Papio cynocephalus ) from infancy t... ...
Tập 67 Số 1 - Trang 83-100 - 2005