Erica van de Waal
Biographic Data
| ID | 5431964 |
|---|---|
| NAME | Erica van de Waal |
| GIVEN NAMES | Erica |
| FAMILY NAME | van de Waal |
| SIGNATURE | VAN DE WAAL E |
| AFFILIATIONS | Department of Ecology and Evolution University of Lausanne Lausanne Switzerland |
| ORCID | 0000-0001-7778-418X |
| VERIFIED | Yes |
| TOTAL WORKS | 8 |
| TOTAL CITATIONS | 1 |
| WORKS AS AUTHOR | 8 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2013 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Which senses do wild vervet monkeys (Chlorocebus pygerythrus) use to evaluate potential food?
Traditionally, primates have been considered primarily visual animals. However, studies across a variety of taxa suggest that, in the context of food evaluation, reliance on this sense might be more nuanced that previously thought, with dietary specialization and food item properties leading to differences in sensory prioritization. We assessed the use of sensory cues during food evaluation and food-related behaviors such as muzzle contact in two…
Loud Call Production in Male Vervet Monkeys (Chlorocebus pygerythrus) Varies with Season and Signaller Rank
Adult males of many nonhuman primate species utter characteristic loud calls that are audible over long distances and serve various functions. In response to large terrestrial predators, male vervet monkeys ( Chlorocebus pygerythrus ) produce loud ‘barks’ that alert group members and are assumed to deter predators. It is less well known that male vervet monkeys also produce barks during aggressive interactions within and between groups. Here, we …
The consistency of individual centrality across time and networks in wild vervet monkeys
Previous primate social network studies largely limited their focus to grooming and/or aggression networks, particularly among adult females. In addition, the consistency of individuals' network centrality across time and/or different networks has received little attention, despite this being critical for a global understanding of dynamic social structure. Here, we analyzed the grooming, aggression, and play social networks of a group of 26–28 wi…
Reactions to infant death by wild vervet monkeys (Chlorocebus pygerythrus) in KwaZulu-Natal, South Africa
Observations of dead infant carrying have been reported for many primate species, and researchers have proposed several hypotheses to explain this behaviour. However, despite being a relatively well-studied species, reports of dead infant carrying in wild vervet monkeys (Chlorocebus pygerythrus) remain scarce. Here we report 14 observations of dead infant carrying by female vervet monkeys in a population at Mawana Game Reserve, KwaZulu-Natal, Sou…
The effects of data collection and observation methods on uncertainty of social networks in wild primates
In social species, network centralities of group members shape social transmission and other social phenomena. Different factors have been found to influence the measurement of social networks, such as data collection and observation methods. In this study, we collected data on adults and juveniles and examined the effect of data collection method (ad libitum sampling vs. focal animal sampling) and observation method (interaction—grooming; play—v…
Social attention biases in juvenile wild vervet monkeys
Resilience of experimentally seeded dietary traditions in wild vervets
Controlled laboratory experiments have delivered extensive and compelling evidence for the diffusion and maintenance of socially learned behavior in primates and other animals. Such evidence is rarer in the wild, but we show that a behavior seeded in a majority of individuals within vervet monkey (Chlorocebus pygerythus) groups may be sustained across several years. Here, we report results of two natural fission events in such groups that offer n…
Negotiations over Grooming in Wild Vervet Monkeys (Chlorocebus pygerythrus)
Negotiations over Grooming in Wild Vervet Monkeys (Chlorocebus pygerythrus)
Resilience of experimentally seeded dietary traditions in wild vervets
Controlled laboratory experiments have delivered extensive and compelling evidence for the diffusion and maintenance of socially learned behavior in primates and other animals. Such evidence is rarer in the wild, but we show that a behavior seeded in a majority of individuals within vervet monkey (Chlorocebus pygerythus) groups may be sustained across several years. Here, we report results of two natural fission events in such groups that offer n…
Social attention biases in juvenile wild vervet monkeys
Reactions to infant death by wild vervet monkeys (Chlorocebus pygerythrus) in KwaZulu-Natal, South Africa
Observations of dead infant carrying have been reported for many primate species, and researchers have proposed several hypotheses to explain this behaviour. However, despite being a relatively well-studied species, reports of dead infant carrying in wild vervet monkeys (Chlorocebus pygerythrus) remain scarce. Here we report 14 observations of dead infant carrying by female vervet monkeys in a population at Mawana Game Reserve, KwaZulu-Natal, Sou…
The effects of data collection and observation methods on uncertainty of social networks in wild primates
In social species, network centralities of group members shape social transmission and other social phenomena. Different factors have been found to influence the measurement of social networks, such as data collection and observation methods. In this study, we collected data on adults and juveniles and examined the effect of data collection method (ad libitum sampling vs. focal animal sampling) and observation method (interaction—grooming; play—v…
The consistency of individual centrality across time and networks in wild vervet monkeys
Previous primate social network studies largely limited their focus to grooming and/or aggression networks, particularly among adult females. In addition, the consistency of individuals' network centrality across time and/or different networks has received little attention, despite this being critical for a global understanding of dynamic social structure. Here, we analyzed the grooming, aggression, and play social networks of a group of 26–28 wi…
Loud Call Production in Male Vervet Monkeys (Chlorocebus pygerythrus) Varies with Season and Signaller Rank
Adult males of many nonhuman primate species utter characteristic loud calls that are audible over long distances and serve various functions. In response to large terrestrial predators, male vervet monkeys ( Chlorocebus pygerythrus ) produce loud ‘barks’ that alert group members and are assumed to deter predators. It is less well known that male vervet monkeys also produce barks during aggressive interactions within and between groups. Here, we …
Which senses do wild vervet monkeys (Chlorocebus pygerythrus) use to evaluate potential food?
Traditionally, primates have been considered primarily visual animals. However, studies across a variety of taxa suggest that, in the context of food evaluation, reliance on this sense might be more nuanced that previously thought, with dietary specialization and food item properties leading to differences in sensory prioritization. We assessed the use of sensory cues during food evaluation and food-related behaviors such as muzzle contact in two…
Primate Behavior and Ecology (8 works) · Biology (6 works) · Animal Vocal Communication and Behavior (5 works) · Animal Behavior and Reproduction (4 works) · Vervet monkey (4 works) · Animal ecology (3 works) · Demography (3 works) · Psychology (3 works) · Zoology (3 works) · Computer Science (2 works)