Susan Lappan
Biographic Data
| ID | 5204781 |
|---|---|
| NAME | Susan Lappan |
| GIVEN NAMES | Susan |
| FAMILY NAME | Lappan |
| SIGNATURE | LAPPAN S |
| AFFILIATIONS | Ewha Womans University |
| ORCID | 0000-0002-0139-8837 |
| VERIFIED | Yes |
| TOTAL WORKS | 13 |
| TOTAL CITATIONS | 29 |
| WORKS AS AUTHOR | 13 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2007 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 3 |
Scientific activism to protect the world's primates and their environments from extinction
Nonhuman primates and their habitats are facing an impending extinction crisis. Approximately 69% of primate species are listed by the International Union for Conservation of Nature as threatened and 93% have declining populations. Human population growth (expected to reach 10.9 billion by the year 2100), the unsustainable demands of a small number of consumer nations for forest‐risk commodities, deforestation and habitat conversion, the expansio…
Perspectives on Conservation Impacts of the Global Primate Trade
The global trade in nonhuman primates represents a substantial threat to ecosystem health, human health, and primate conservation worldwide. Most of the primate trade involves trade for pet-keeping, consumption, or biomedical experimentation. We present an overview of international primate trade through five case studies; each describes a different facet of this trade. We draw on published scientific literature, media outlets, and open access dat…
Population densities of Hylobates agilis in forests with different disturbance histories in Ulu Muda Forest Reserve, Malaysia
Small ape habitat throughout Malaysia is rapidly being lost, degraded, and fragmented, and the effects of these changes on the abundance on this taxon are currently unknown. This study assessed the group density of Hylobates agilis in virgin forest, previously logged forest (1960s–1990s), and recently logged forest (2015–2017) of the Ulu Muda Forest Reserve (UMFR), Kedah, Malaysia. We conducted fixed‐point active acoustic triangulation at nine su…
The human–primate interface in the New Normal
The emergence of SARS‐CoV‐2 in late 2019 and human responses to the resulting COVID‐19 pandemic in early 2020 have rapidly changed many aspects of human behavior, including our interactions with wildlife. In this commentary, we identify challenges and opportunities at human–primate interfaces in light of COVID‐19, focusing on examples from Asia, and make recommendations for researchers working with wild primates to reduce zoonosis risk and levera…
Are social media reports useful for assessing small ape occurrence? A pilot study from Peninsular Malaysia
Citizen science‐based research has been used effectively to estimate animal abundance and breeding patterns, to monitor animal movement, and for biodiversity conservation and education. Here, we evaluate the feasibility of using social media observations to assess the distribution of small apes in Peninsular Malaysia. We searched for reports of small ape observations in Peninsular Malaysia on social media (e.g., blogs, Facebook, Instagram, Twitte…
Female Songs of the Nonduetting Javan Gibbons (Hylobates moloch) Function for Territorial Defense
Song Functions in Nonduetting Gibbons
Responses of J avan Gibbon ( H ylobates moloch ) Groups in Submontane Forest to Monthly Variation in Food Availability
Primates tend to prefer specific plant foods, and primate home ranges may contain only a subset of food species present in an area. Thus, primate feeding strategies should be sensitive to the phenology of specific species encountered within the home range in addition to responding to larger scale phenomena such as seasonal changes in rainfall or temperature. We studied three groups of J avan gibbons ( H ylobates moloch ) in the G unung H alimun‐ …
Diet and ranging behavior of the endangered Javan gibbon ( Hylobates moloch ) in a submontane tropical rainforest
Altitude influences forest structure and food abundance and distribution, which in turn affect primate feeding and ranging patterns. Javan gibbons ( Hylobates moloch ) are endemic to forests spanning a broad range of altitudes on Java, Indonesia. Most information about Javan gibbon behavior comes from studies in lowland forests, while the vast majority of wild gibbons remaining inhabit hill and lower montane forests. We studied the diets, activit…
Flowers Are an important food for small apes in southern Sumatra
Flowers are included in the diets of many primates, but are not generally regarded as making an important contribution to primate energy budgets. However, observations of a number of lemur, platyrrhine, and cercopithecine populations suggest that some flower species may function as key primate fallback foods in periods of low abundance of preferred foods (generally ripe fruits), and that flowers may be preferred foods in some cases. I report heav…
The effects of lactation and infant care on adult energy budgets in wild siamangs ( Symphalangus syndactylus )
In mammals with biparental care of offspring, males and females may bear substantial energetic costs of reproduction. Adult strategies to reduce energetic stress include changes in activity patterns, reduced basal metabolic rates, and storage of energy prior to a reproductive attempt. I quantified patterns of behavior in five groups of wild siamangs ( Symphalangus syndactylus ) to detect periods of high energetic investment by adults and to exami…
Patterns of dispersal in Sumatran siamangs ( Symphalangus syndactylus )
Gibbons of both sexes have been observed emigrating from their natal groups, but the consequences of dispersal in gibbons are poorly understood, and it is unclear whether these are the same for both sexes. I sequenced a 350‐bp fragment of mitochondrial DNA from 18 adults in seven siamang ( Symphalangus syndactylus ) groups at the Way Canguk Research Station in southern Sumatra to assess patterns of matrilineal relatedness among and within siamang…
Social Relationships among Males in Multimale Siamang Groups
Social Relationships among Males in Multimale Siamang Groups
The effects of lactation and infant care on adult energy budgets in wild siamangs ( Symphalangus syndactylus )
In mammals with biparental care of offspring, males and females may bear substantial energetic costs of reproduction. Adult strategies to reduce energetic stress include changes in activity patterns, reduced basal metabolic rates, and storage of energy prior to a reproductive attempt. I quantified patterns of behavior in five groups of wild siamangs ( Symphalangus syndactylus ) to detect periods of high energetic investment by adults and to exami…
Female Songs of the Nonduetting Javan Gibbons (Hylobates moloch) Function for Territorial Defense
Song Functions in Nonduetting Gibbons
Patterns of dispersal in Sumatran siamangs ( Symphalangus syndactylus )
Gibbons of both sexes have been observed emigrating from their natal groups, but the consequences of dispersal in gibbons are poorly understood, and it is unclear whether these are the same for both sexes. I sequenced a 350‐bp fragment of mitochondrial DNA from 18 adults in seven siamang ( Symphalangus syndactylus ) groups at the Way Canguk Research Station in southern Sumatra to assess patterns of matrilineal relatedness among and within siamang…
Social Relationships among Males in Multimale Siamang Groups
Flowers Are an important food for small apes in southern Sumatra
Flowers are included in the diets of many primates, but are not generally regarded as making an important contribution to primate energy budgets. However, observations of a number of lemur, platyrrhine, and cercopithecine populations suggest that some flower species may function as key primate fallback foods in periods of low abundance of preferred foods (generally ripe fruits), and that flowers may be preferred foods in some cases. I report heav…
The effects of lactation and infant care on adult energy budgets in wild siamangs ( Symphalangus syndactylus )
In mammals with biparental care of offspring, males and females may bear substantial energetic costs of reproduction. Adult strategies to reduce energetic stress include changes in activity patterns, reduced basal metabolic rates, and storage of energy prior to a reproductive attempt. I quantified patterns of behavior in five groups of wild siamangs ( Symphalangus syndactylus ) to detect periods of high energetic investment by adults and to exami…
Diet and ranging behavior of the endangered Javan gibbon ( Hylobates moloch ) in a submontane tropical rainforest
Altitude influences forest structure and food abundance and distribution, which in turn affect primate feeding and ranging patterns. Javan gibbons ( Hylobates moloch ) are endemic to forests spanning a broad range of altitudes on Java, Indonesia. Most information about Javan gibbon behavior comes from studies in lowland forests, while the vast majority of wild gibbons remaining inhabit hill and lower montane forests. We studied the diets, activit…
Responses of J avan Gibbon ( H ylobates moloch ) Groups in Submontane Forest to Monthly Variation in Food Availability
Primates tend to prefer specific plant foods, and primate home ranges may contain only a subset of food species present in an area. Thus, primate feeding strategies should be sensitive to the phenology of specific species encountered within the home range in addition to responding to larger scale phenomena such as seasonal changes in rainfall or temperature. We studied three groups of J avan gibbons ( H ylobates moloch ) in the G unung H alimun‐ …
Song Functions in Nonduetting Gibbons
Female Songs of the Nonduetting Javan Gibbons (Hylobates moloch) Function for Territorial Defense
The human–primate interface in the New Normal
The emergence of SARS‐CoV‐2 in late 2019 and human responses to the resulting COVID‐19 pandemic in early 2020 have rapidly changed many aspects of human behavior, including our interactions with wildlife. In this commentary, we identify challenges and opportunities at human–primate interfaces in light of COVID‐19, focusing on examples from Asia, and make recommendations for researchers working with wild primates to reduce zoonosis risk and levera…
Are social media reports useful for assessing small ape occurrence? A pilot study from Peninsular Malaysia
Citizen science‐based research has been used effectively to estimate animal abundance and breeding patterns, to monitor animal movement, and for biodiversity conservation and education. Here, we evaluate the feasibility of using social media observations to assess the distribution of small apes in Peninsular Malaysia. We searched for reports of small ape observations in Peninsular Malaysia on social media (e.g., blogs, Facebook, Instagram, Twitte…
Population densities of Hylobates agilis in forests with different disturbance histories in Ulu Muda Forest Reserve, Malaysia
Small ape habitat throughout Malaysia is rapidly being lost, degraded, and fragmented, and the effects of these changes on the abundance on this taxon are currently unknown. This study assessed the group density of Hylobates agilis in virgin forest, previously logged forest (1960s–1990s), and recently logged forest (2015–2017) of the Ulu Muda Forest Reserve (UMFR), Kedah, Malaysia. We conducted fixed‐point active acoustic triangulation at nine su…
Scientific activism to protect the world's primates and their environments from extinction
Nonhuman primates and their habitats are facing an impending extinction crisis. Approximately 69% of primate species are listed by the International Union for Conservation of Nature as threatened and 93% have declining populations. Human population growth (expected to reach 10.9 billion by the year 2100), the unsustainable demands of a small number of consumer nations for forest‐risk commodities, deforestation and habitat conversion, the expansio…
Perspectives on Conservation Impacts of the Global Primate Trade
The global trade in nonhuman primates represents a substantial threat to ecosystem health, human health, and primate conservation worldwide. Most of the primate trade involves trade for pet-keeping, consumption, or biomedical experimentation. We present an overview of international primate trade through five case studies; each describes a different facet of this trade. We draw on published scientific literature, media outlets, and open access dat…
Biology (13 works) · Primate Behavior and Ecology (10 works) · Ecology (9 works) · Animal Behavior and Reproduction (7 works) · Geography (7 works) · Zoology (7 works) · Demography (6 works) · Population (6 works) · Animal ecology (4 works) · Animal Vocal Communication and Behavior (4 works)