P C Wright
Dados Biográficos
| ID | 1110 |
|---|---|
| NOME | P C Wright |
| PRENOMES | P C |
| SOBRENOME | Wright |
| ASSINATURA | WRIGHT P C |
| AFILIAÇÕES | Stony Brook University |
| ORCID | 0000-0002-9443-383X |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 51 |
| TOTAL DE CITAÇÕES | 360 |
| TOTAL COMO AUTOR | 51 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1982 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2025 |
| ÍNDICE H | 9 |
Why Didn't the Sifaka Cross the Road? Divergence of Propithecus edwardsi Gut Microbiomes Across Geographic Barriers in Ranomafana National Park, Madagascar
This study uses a biogeographic framework to identify patterns of gut microbiome divergence in an endangered lemur species endemic to Madagascar's southeastern rainforests, the Milne‐Edwards's sifaka ( Propithecus edwardsi) . Specifically, we tested the effects of (1) geographic barriers, (2) habitat disturbance, and (3) geographic distance on gut microbiome alpha and beta diversity. We selected 10 social groups from 4 sites in Ranomafana Nationa…
Provisioning services decline for both people and Critically Endangered wildlife in a rainforest transformation landscape
The loss and degradation of forests and other ecosystems worldwide threaten both global biodiversity and the livelihoods of people who use natural resources. Understanding how natural resource use impacts landscape provisioning services for both people and wildlife is thus critical for designing comprehensive resource management strategies. We used data from community focus groups, botanical plots and an inventory of plant species consumed by the…
An overdue catalyst
The COVID‐19 pandemic caused by the SARS‐CoV‐2 virus brought many primatology research programs and conservation efforts to a halt. After Madagascar closed its borders during March 2020, many on‐site international project leaders and researchers returned to their home countries when their programs were delayed or canceled. Madagascar remained closed to travelers until November 2021, when it reopened to international flights. The 20‐month absence …
Evaluating the impact of environmental education around Ranomafana National Park
A total of 94% of lemur species are currently threatened with extinction and more than 17 species of giant lemur are already extinct. To help prevent the extinction of Madagascar's remaining lemurs, Dr. Patricia Wright initiated conservation programs in the Ranomafana region of southern Madagascar in the 1990s. These continued and expanded, and in 2003 were consolidated with Dr. Wright's research activities when Center ValBio (“CVB”) was founded …
A Coupled Humanitarian and Biodiversity Crisis in Western Madagascar
Ecological Flexibility of Propithecus edwardsi in Two Forest Habitats with Different Logging Histories in Ranomafana National Park, Madagascar
Integrating Health Systems and Science to Respond to Covid-19 in a Model District of Rural Madagascar
There are many outstanding questions about how to control the global COVID-19 pandemic. The information void has been especially stark in the World Health Organization Africa Region, which has low per capita reported cases, low testing rates, low access to therapeutic drugs, and has the longest wait for vaccines. As with all disease, the central challenge in responding to COVID-19 is that it requires integrating complex health systems that incorp…
Exploratory analysis reveals arthropod consumption in 10 lemur species using DNA metabarcoding
Arthropods (insects, spiders, etc.) can fulfill major nutritional requirements for primates, particularly in terms of proteins, fats, vitamins, and minerals. Yet, for many primate species we know very little about the frequency and importance of arthropod consumption. Traditional methods for arthropod prey identification, such as behavioral observations and fecal dissections, offer limited taxonomic resolution and, as a result, underestimate true…
Trends in forest fragment research in Madagascar
The rise in research investigating fragmentation and its impact on primates and other taxa reflects the growing presence of fragmented landscapes themselves. Although numerous studies report the negative effects of fragmentation on biodiversity, it is difficult to generalize responses to fragmentation for specific taxonomic groups, such as non‐human primates, when studies have not employed a definitive concept of fragmentation or fragments themse…
Evidence for early human arrival in Madagascar is robust
The colonization period of a given region can be defined by multiple types of evidence, including human bone records, environmental proxy signals in sediment cores, human-made artifacts, or anthrop
Variations in the microbiome due to storage preservatives are not large enough to obscure variations due to factors such as host population, host species, body site, and captivity
The study of the primate microbiome is critical in understanding the role of the microbial community in the host organism. To be able to isolate the main factors responsible for the differences observed in microbiomes within and between individuals, confounding factors due to technical variations need to be removed. To determine whether alterations due to preservatives outweigh differences due to factors such as host population, host species, bod…
Extensive variability in the gut microbiome of a highly‐specialized and critically endangered lemur species across sites
Deforestation continues to jeopardize Malagasy primates as viable habitats become smaller, more fragmented, and more disturbed. This deforestation can lead to changes in diet, microhabitat, and gene flow between populations of endangered species, and it remains unclear how these changes may affect gut microbiome (GM) characteristics. The black‐and‐white ruffed lemur ( Varecia variegata ), which is among Madagascar's most threatened lemur species,…
Last chance for Madagascar’s biodiversity
Terrestrial Behavior in Titi Monkeys (Callicebus, Cheracebus, and Plecturocebus)
The importance of protein in leaf selection of folivorous primates
Protein limitation has been considered a key factor in hypotheses on the evolution of life history and animal communities, suggesting that animals should prioritize protein in their food choice. This contrasts with the limited support that food selection studies have provided for such a priority in nonhuman primates, particularly for folivores. Here, we suggest that this discrepancy can be resolved if folivores only need to select for high protei…
Dr. Elwyn LaVerne Simons
Primate genotyping via high resolution melt analysis
Pathogenic enterobacteria in lemurs associated with anthropogenic disturbance
As human population density continues to increase exponentially, speeding the reduction and fragmentation of primate habitat, greater human-primate contact is inevitable, making higher rates of pathogen transmission likely. Anthropogenic effects are particularly evident in Madagascar, where a diversity of endemic lemur species are threatened by rapid habitat loss. Despite these risks, knowledge of how anthropogenic activities affect lemur exposur…
Diversity and Prevalence of Diarrhea-Associated Viruses in the Lemur Community and Associated Human Population of Ranomafana National Park, Madagascar
Effects of Sex and Age on Heterothermy in Goodman’s Mouse Lemur (Microcebus lehilahytsara)
Averting Lemur Extinctions amid Madagascar's Political Crisis
Community-based management, ecotourism, and researchers' presence are proposed to prevent lemur extinctions.
Primate Tourism
Primate tourism is a growing phenomenon, with increasing pressure coming from several directions: the private sector, governments, and conservation agencies. At the same time, some primate sites are working to exclude or severely restrict tourism because of problems that have developed as a result. Indeed, tourism has proven costly to primates due to factors such as disease, stress, social disruption, vulnerability to poachers, and interference w…
Spatial Ecology of the Endangered Milne-Edwards’ Sifaka (Propithecus edwardsi)
Lemur habitat and dental senescence in Ranomafana National Park, Madagascar
Not only can teeth provide clues about diet, but they also can be indicators of habitat quality. Conspecific groups living in different habitats with different kinds of foods may exhibit different rates of dental attrition because their teeth are less well adapted to some foods than to others. Ecological disequilibrium describes the situation in which animals live in habitats to which they are relatively poorly adapted. We test whether dental sen…
Frugivory in four sympatric lemurs
Although some conservationists accept that not all species can be saved, we illustrate the difficulty in deciding which species are dispensable. In this article, we examine the possibility that the integrity of a forest relies on its entire faunal assemblage. In Madagascar, one faunal group, the lemurs, accounts for the greatest biomass and species richness among frugivores. For example, 7 of the 13 sympatric lemur species in Madagascar's eastern…
Sexual selection and canine dimorphism in new world monkeys
Social and ecological factors are important in shaping sexual dimorphism in Anthropoidea, but there is also a tendency for body‐size dimorphism and canine dimorphism to increase with increased body size (Rensch's rule) (Rensch: Evolution Above the Species Level . London: Methuen, 1959.) Most ecologists interpret Rensch's rule to be a consequence of social and ecological selective factors that covary with body size, but recent claims have been adv…
Morphometrics and testicle size of rain forest lemur species from southeastern Madagascar
The nocturnal primate niche in the New World
Demography and life history of free-rangingPropithecus diadema edwardsi in ranomafana national park, madagascar
Patterns of paternal care in primates
Demography, life history, and social structure in Propithecus diadema edwardsi from 1986–2000 in Ranomafana National Park, Madagascar
Prosimian lemurs differ fundamentally from anthropoid primates in many traits related to social structure. By exploring the demography of Milne‐Edwards' sifakas ( Propithecus diadema edwardsi ), and comparing it to other well‐studied primates, we explore the effect of demographic and life‐history factors on social structure. Specifically, we compare lemur survivorship and fertility patterns to two published composite models: one created for New W…
Specific Status of Propithecus spp
Ecogeographic size variations in sifakas
Ecogeographic size variations have been documented in some but not all sifakas. Few morphometric or body weight data have been available for two critically endangered subspecies of diademed sifakas: Perrier's sifakas ( Propithecus diadema perrieri ) and silky sifakas ( Propithecus diadema candidus ). The objectives of our study were to determine size variations in sifakas and if these variations are related to resource quality and/or resource sea…
The Effects of Habitat Disturbance on Lemurs at Ranomafana National Park, Madagascar
Terrestrial Behavior in Titi Monkeys (Callicebus, Cheracebus, and Plecturocebus)
Last chance for Madagascar’s biodiversity
Spatial Ecology of the Endangered Milne-Edwards’ Sifaka (Propithecus edwardsi)
Lemur habitat and dental senescence in Ranomafana National Park, Madagascar
Not only can teeth provide clues about diet, but they also can be indicators of habitat quality. Conspecific groups living in different habitats with different kinds of foods may exhibit different rates of dental attrition because their teeth are less well adapted to some foods than to others. Ecological disequilibrium describes the situation in which animals live in habitats to which they are relatively poorly adapted. We test whether dental sen…
Morphological Variation in Populations of Eulemur albocollaris and E. fulvus rufus
Effect of Season and Age on the Gonadosomatic Index of Milne-Edwards' Sifakas (Propithecus diadema edwardsi) in Ranomafana National Park, Madagascar
Evidence for early human arrival in Madagascar is robust
The colonization period of a given region can be defined by multiple types of evidence, including human bone records, environmental proxy signals in sediment cores, human-made artifacts, or anthrop
Diversity and Prevalence of Diarrhea-Associated Viruses in the Lemur Community and Associated Human Population of Ranomafana National Park, Madagascar
Effects of Sex and Age on Heterothermy in Goodman’s Mouse Lemur (Microcebus lehilahytsara)
Changes in orientation of attritional wear facets with implications for jaw motion in a mixed longitudinal sample of Propithecus edwardsi from Ranomafana National Park, Madagascar
In many mammalian species, the progressive wearing down of the teeth that occurs over an individual's lifetime has the potential to change dental function, jaw movements, or even feeding habits. The orientation of phase‐I wear facets on molars reveals the direction of jaw movement during the power stroke of mastication. We investigated if and how molar wear facets change with increasing wear and/or age by examining a mixed longitudinal dataset of…
Grooming behavior in the titi monkey ( Callicebus torquatus )
Observations on a family group of four free‐ranging Callicebus torquatus are reported for 235 hours on 18 complete days. Grooming sessions usually contained more than one grooming bout, and the longest grooming sessions occured on the sleeping bough, prior to dusk. On 12 days continuous observations were made on all grooming activity on the sleeping bough. The total time spent grooming, and the number and length of grooming bouts were recorded. R…
Gestation length in Tarsius bancanus
A gestation length of 178 days was determined for Tarsius bancanus based on a vaginal smear containing whole sperm. This value replaces the only previously reported information on gestation length in tarsiers, a rough estimate of approximately 6 months for T. syrichta
Reproductive cycles in Tarsius bancanus
The reproductive condition of three pairs of Bornean tarsiers ( Tarsius bancanus ) was documented for 16 months. Each pair was housed separately under a constant photoperiod (L:D = 11.5:12.5) similar to that in their native habitat. Reproductive cycles of females were monitored visually for 6 months and were then monitored with vaginal smears and measurements of external genitalia for an additional 10 months. Progressive proliferation and cornifi…
Sexual selection and canine dimorphism in new world monkeys
Social and ecological factors are important in shaping sexual dimorphism in Anthropoidea, but there is also a tendency for body‐size dimorphism and canine dimorphism to increase with increased body size (Rensch's rule) (Rensch: Evolution Above the Species Level . London: Methuen, 1959.) Most ecologists interpret Rensch's rule to be a consequence of social and ecological selective factors that covary with body size, but recent claims have been adv…
Consumption of cyanogenic bamboo by a newly discovered species of bamboo lemur
Three species of bamboo‐eating lemurs were found to be sympatric in the southeastern rain forests of Madagascar. Sympatric species generally differ in habitat utilization or diet, but these three closely related bamboo lemurs lived in the same habitat and all ate bamboo. Behavioral observation revealed that they did select different parts of the bamboo, and chemical analyses confirmed that there was a difference in the secondary compound content …
The nocturnal primate niche in the New World
Ecosystem preservation and public health
Patterns of paternal care in primates
Primate ecology, rainforest conservation, and economic development
At the end of the twentieth century, the future of primate ecology is interlocked with that of the world's tropical forests. Most primate species occur in rainforests, which are disappearing at an astounding rate. 1,2 It is clear that conservation of tropical forests and their rich faunas must take place within the context of the economic development of the countries in which they are situated. Further, the conservation of these resources must pr…
Morphometrics and testicle size of rain forest lemur species from southeastern Madagascar
Demography and life history of free-rangingPropithecus diadema edwardsi in ranomafana national park, madagascar
Lemur traits and Madagascar ecology
The last decade's lemur research includes successes in discovering new living and extinct species and learning about the distribution, biogeography, physiology, behavior, and ecology of previously little-studied species. In addition, in both the dry forest and rain forest, long-term studies of lemur demography, life history, and reproduction, have been completed in conjunction with data on tree productivity, phenology, and climate. Lemurs contras…
Effect of Season and Age on the Gonadosomatic Index of Milne-Edwards' Sifakas (Propithecus diadema edwardsi) in Ranomafana National Park, Madagascar
Patterns of female dominance in Propithecus diadema edwardsi of Ranomafana national park, Madagascar
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 found little or no aggression. The aim of the current, long‐term study was to quantify the intersexual‐dominance patt…
Centre ValBio
Specific Status of Propithecus spp
Demography, life history, and social structure in Propithecus diadema edwardsi from 1986–2000 in Ranomafana National Park, Madagascar
Prosimian lemurs differ fundamentally from anthropoid primates in many traits related to social structure. By exploring the demography of Milne‐Edwards' sifakas ( Propithecus diadema edwardsi ), and comparing it to other well‐studied primates, we explore the effect of demographic and life‐history factors on social structure. Specifically, we compare lemur survivorship and fertility patterns to two published composite models: one created for New W…
Dental senescence in a long-lived primate links infant survival to rainfall
Primates tend to be long-lived, and, except for humans, most primate females are able to reproduce into old age. Although aging in most mammals is accompanied by dental senescence due to advanced wear, primates have low-crowned teeth that wear down before old age. Because tooth wear alters crown features gradually, testing whether early dental senescence causes reproductive senescence has been difficult. To identify whether and when low-crowned t…
Patterns of male scent-marking inPropithecus edwardsi of Ranomafana National Park, Madagascar
Scent-marking behavior has been well documented in many primate species. Three common functions attributed to scent-marking in males of multi-male/multi-female lemur species include: 1) advertisement of individual identity, 2) territorial defense, and 3) reproductive suppression. We examined the average number of scent-marks per hour exhibited daily by adult male sifakas (Propithecus edwardsi) and found that patterns of scent-marking changed with…
Sex differences in scent marking in Propithecus edwardsi of Ranomafana National Park, Madagascar
In this study we compared the scent‐marking rates of females with those of males. Specifically, we examined the ability of season, dominance status, and natal status to explain the frequency of scent marking in female sifakas living wild in Ranomafana National Park, Madagascar, and compared the results with those published for males [Pochron et al., American Journal of Primatology, in press]. We also sought to determine whether vulnerability to i…
Morphological Variation in Populations of Eulemur albocollaris and E. fulvus rufus
Ecogeographic size variations in sifakas
Ecogeographic size variations have been documented in some but not all sifakas. Few morphometric or body weight data have been available for two critically endangered subspecies of diademed sifakas: Perrier's sifakas ( Propithecus diadema perrieri ) and silky sifakas ( Propithecus diadema candidus ). The objectives of our study were to determine size variations in sifakas and if these variations are related to resource quality and/or resource sea…
Volatile components of lemur scent secretions vary throughout the year
Olfactory signals can communicate a wide variety of information and are very important in many mammalian species. However, little is known about the olfactory communication of primates. This study used gas chromatography to examine the volatile components of the anogenital gland secretions of wild Milne‐Edward's sifaka, Propithecus edwardsi (Primates, Indriidae) (n = 17), captured in Ranomafana National Park, Madagascar. We compared scent swabs o…
Frugivory in four sympatric lemurs
Although some conservationists accept that not all species can be saved, we illustrate the difficulty in deciding which species are dispensable. In this article, we examine the possibility that the integrity of a forest relies on its entire faunal assemblage. In Madagascar, one faunal group, the lemurs, accounts for the greatest biomass and species richness among frugivores. For example, 7 of the 13 sympatric lemur species in Madagascar's eastern…
Morphometrics and pattern of growth in wild sifakas ( Propithecus edwardsi ) at ranomafana national park, madagascar
We summarize morphometric data collected over a period of 22 years from a natural population of rainforest sifakas ( Propithecus edwardsi ) at Ranomafana National Park, Madagascar, and we use those data to document patterns of growth and development. Individually identified, known‐age sifakas were successfully captured, measured, and released. We found that body segment lengths increased faster during growth than did body mass, with individuals a…
Biology (47 obras) · Primate Behavior and Ecology (41 obras) · Ecology (38 obras) · Lemur (28 obras) · Primate (27 obras) · Zoology (25 obras) · Animal Behavior and Reproduction (22 obras) · Population (17 obras) · Geography (16 obras) · Ecology (15 obras)