Leila M Porter
Biographic Data
| ID | 625154 |
|---|---|
| NAME | Leila M Porter |
| GIVEN NAMES | Leila M |
| FAMILY NAME | Porter |
| SIGNATURE | PORTER L M |
| AFFILIATIONS | Northern Illinois University |
| ORCID | 0000-0003-4520-8617 |
| VERIFIED | Yes |
| TOTAL WORKS | 25 |
| TOTAL CITATIONS | 56 |
| AUTHOR COUNT | 25 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1996 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 4 |
Variation in Maternal Effort, Activity Budgets, and Feeding Behavior in Wild Saddleback Tamarins ( Leontocebus weddelli ) in Northwestern Bolivia
Among primates, maternal infant care may vary in response to several factors including litter size, reproductive history, and health status. In cooperative breeders, maternal investment may also depend on the amount of help their group mates (or allomothers) provide. We studied infant care and activity in four wild groups of saddleback tamarins ( Leontocebus weddelli ) and collected hair and fecal samples from which we extracted genomic DNA to es…
Genetic and Morphological Analyses Confirm the Presence of Cebuella niveiventris (Platyrrhini, Callitrichidae) in Bolivia
Taxonomic diversity of Cebuella in the western Amazon
OBJECTIVES: We investigated the diversity of the pygmy marmoset, Cebuella pygmaea, by comparing genetic, morphological and pelage traits of animals from Peru and Ecuador. MATERIALS AND METHODS: We extracted DNA from museum specimen osteocrusts and from fecal samples collected from free-ranging individuals. We sequenced the mtDNA cytochrome b gene and the control region from samples collected at 13 different sites and used Bayesian inference and M…
Variable infant care contributions in cooperatively breeding groups of wild saddleback tamarins
Among non‐human primates, alloparental infant care is most extensive in callitrichines, and is thought to be particularly costly for tamarins whose helpers may suffer increased energy expenditure, weight loss, and reduced feeding time and mobility. The costs and benefits of infant care likely vary among group members yet very few wild studies have investigated variable infant care contributions. We studied infant care over an 8‐month period in fo…
The gut microbiome and metabolome of saddleback tamarins ( Leontocebus weddelli)
Body mass is a strong predictor of diet and nutritional requirements across a wide range of mammalian taxa. In the case of small‐bodied primates, because of their limited gut volume, rapid food passage rate, and high metabolic rate, they are hypothesized to maintain high digestive efficiency by exploiting foods rich in protein, fats, and readily available energy. However, our understanding of the dietary requirements of wild primates is limited b…
Mother's little helpers
Since Darwin ( ), scientists have been puzzled by how behaviors that impose fitness costs on helpers while benefiting their competitors could evolve through natural selection. Hamilton's ( ) theory of inclusive fitness provided an explanation by showing how cooperative behaviors could be adaptive if directed at closely related kin. Recent studies, however, have begun to question whether kin selection is sufficient to explain cooperative behavior …
Tamarins
Tamarins are reported to live in small multimale-multifemale groups characterized by a single breeding female. Here we present information on the composition and genetic relatedness of individuals in 12 wild-trapped groups of Weddell's saddleback tamarins (Saguinus weddelli) from northern Bolivia to determine if groups are best described as nuclear or extended families suggesting social monogamy or whether groups contain several unrelated same se…
Navigating in small‐scale space
Recent studies of spatial memory in wild nonhuman primates indicate that foragers may rely on a combination of navigational strategies to locate nearby and distant feeding sites. When traveling in large-scale space, tamarins are reported to encode spatial information in the form of a route-based map. However, little is known concerning how wild tamarins navigate in small-scale space (between feeding sites located at a distance of ≤60 m). Therefor…
Diet and Phylogeny in Primate Communities
Foraging and Spatial Memory in Wild Weddell’s Saddleback Tamarins (Saguinus fuscicollis weddelli) When Moving Between Distant and Out-of-Sight Goals
Maternal care and infant development in Callimico goeldii and Callithrix jacchus
Mycophagy and its influence on habitat use and ranging patterns in Callimico goeldii
Mycophagy has been documented in a number of species of marmosets and lion tamarins (Callitrichinae) but its effect on ranging behavior is not known. We present the results of 10 years of research on five groups of Goeldi's monkey ( Callimico goeldii ) at a field site in northwestern Bolivia. We studied the diet and ranging behavior of two of the groups. On average, groups contained 4.5 individuals (range 2.0–9.0), but they gradually decreased in…
Exudates as a fallback food for Callimico goeldii
Fallback foods have been defined as resources for which a species has evolved specific masticatory and digestive adaptations, and are consumed principally when preferred foods are scarce. In the present field investigation, we examine fungi, fruit, and exudate consumption in one group of Callimico goeldii in order to determine the importance of exudates as a fallback food for this species. Based on a total of 1,198 hr of quantitative behavioral d…
Niche expansion of a cryptic primate, Callimico goeldii , while in mixed species troops
We examined the effects of polyspecific associations on the behavior of one group of Callimico goeldii in northwestern Bolivia. Data were collected for 1 year using focal animal sampling at 5‐min intervals, for a total of 1,375 observation hours. In total, C. goeldii formed mixed species troops with five groups of Saguinus fuscicollis and six groups of S. labiatus , and these were maintained during 81% of observations. C. goeldii rested more and …
Habitat Use and Ranging Behavior of Callimico goeldii
Distribution and density of Callimico goeldii in the Department of Pando, Bolivia
A survey of the distribution and density of Callimico goeldii was conducted at five sites across northwestern Bolivia, in the Department of Pando. C. goeldii was found at two sites north of the Manuripi River, with high densities at one site located along the Acre River. Estimates of habitat availability at these sites suggest that C. goeldii reaches high densities in areas with low human density and well established and extensive bamboo forests.…
Composition and Nutritional Characteristics of Fungi Consumed by Callimico goeldii in Pando, Bolivia
Goeldi's monkeys
“A primate with the skull of a Callicebus , the mandible and feet of a marmoset and the tail and teeth of Pseudocebus [= Cebus ] ....” (Riberio, 1941 as cited in Hershkovitz 1 p. 866). Goeldi's monkeys are the least understood species of platyrrhine. The monkeys' small body size, black coloration, tendency to forage in the low forest understory, and cryptic nature, make them difficult to observe in the wild. Until recently, they had never been th…
Forest use and activity patterns of Callimico goeldii in comparison to two sympatric tamarins, Saguinus fuscicollis and Saguinus labiatus
Callimico goeldii , Saguinus fuscicollis , and S. labiatus are sympatric in northern Bolivia and differ from each other in patterns of spatial and structural use of their environment. C. goeldii has a home range five times larger than that of mixed‐species troops of S. fuscicollis and S. labiatus . The larger overlapping home range of C. goeldii allows it to move among Saguinus troops, giving it access to a wide range of different microhabitats. …
Fungus and Callimico goeldii
Benefits of polyspecific associations for the Goeldi’s monkey ( Callimico goeldii )
Polyspecific associations are an important component of Callimico goeldii behavior and ecology. On average, Callimico goeldii was found in proximity to or in vocal contact with Saguinus troops ( S. fuscicollis and S. labiatus ) during 53% of all time intervals sampled. Polyspecific associations varied considerably between seasons, however, with association rates peaking during the wet‐season month of February (89%) and declining in the dry season…
Dietary Differences Among Sympatric Callitrichinae in Northern Bolivia
Effects of social and inanimate enrichment on the behavior of yearling rhesus monkeys
Certain types of inanimate environmental enrichment have been shown to positively affect the behavior of laboratory primates, as has housing them in appropriate social conditions. While social housing is generally advocated as an important environmental enhancement, few studies have attempted to measure the influence of social conditions on the effects of inanimate enrichment or to compare the relative merits of social and inanimate enhancements.…
Effects of social and inanimate enrichment on the behavior of yearling rhesus monkeys
Forthcoming inAmerican Journal of Primatology
Dietary Differences Among Sympatric Callitrichinae in Northern Bolivia
Forest use and activity patterns of Callimico goeldii in comparison to two sympatric tamarins, Saguinus fuscicollis and Saguinus labiatus
Callimico goeldii , Saguinus fuscicollis , and S. labiatus are sympatric in northern Bolivia and differ from each other in patterns of spatial and structural use of their environment. C. goeldii has a home range five times larger than that of mixed‐species troops of S. fuscicollis and S. labiatus . The larger overlapping home range of C. goeldii allows it to move among Saguinus troops, giving it access to a wide range of different microhabitats. …
Habitat Use and Ranging Behavior of Callimico goeldii
Composition and Nutritional Characteristics of Fungi Consumed by Callimico goeldii in Pando, Bolivia
Taxonomic diversity of Cebuella in the western Amazon
OBJECTIVES: We investigated the diversity of the pygmy marmoset, Cebuella pygmaea, by comparing genetic, morphological and pelage traits of animals from Peru and Ecuador. MATERIALS AND METHODS: We extracted DNA from museum specimen osteocrusts and from fecal samples collected from free-ranging individuals. We sequenced the mtDNA cytochrome b gene and the control region from samples collected at 13 different sites and used Bayesian inference and M…
Foraging and Spatial Memory in Wild Weddell’s Saddleback Tamarins (Saguinus fuscicollis weddelli) When Moving Between Distant and Out-of-Sight Goals
Mycophagy and its influence on habitat use and ranging patterns in Callimico goeldii
Mycophagy has been documented in a number of species of marmosets and lion tamarins (Callitrichinae) but its effect on ranging behavior is not known. We present the results of 10 years of research on five groups of Goeldi's monkey ( Callimico goeldii ) at a field site in northwestern Bolivia. We studied the diet and ranging behavior of two of the groups. On average, groups contained 4.5 individuals (range 2.0–9.0), but they gradually decreased in…
Diet and Phylogeny in Primate Communities
Effects of social and inanimate enrichment on the behavior of yearling rhesus monkeys
Certain types of inanimate environmental enrichment have been shown to positively affect the behavior of laboratory primates, as has housing them in appropriate social conditions. While social housing is generally advocated as an important environmental enhancement, few studies have attempted to measure the influence of social conditions on the effects of inanimate enrichment or to compare the relative merits of social and inanimate enhancements.…
Effects of social and inanimate enrichment on the behavior of yearling rhesus monkeys
Forthcoming inAmerican Journal of Primatology
Benefits of polyspecific associations for the Goeldi’s monkey ( Callimico goeldii )
Polyspecific associations are an important component of Callimico goeldii behavior and ecology. On average, Callimico goeldii was found in proximity to or in vocal contact with Saguinus troops ( S. fuscicollis and S. labiatus ) during 53% of all time intervals sampled. Polyspecific associations varied considerably between seasons, however, with association rates peaking during the wet‐season month of February (89%) and declining in the dry season…
Dietary Differences Among Sympatric Callitrichinae in Northern Bolivia
Fungus and Callimico goeldii
Goeldi's monkeys
“A primate with the skull of a Callicebus , the mandible and feet of a marmoset and the tail and teeth of Pseudocebus [= Cebus ] ....” (Riberio, 1941 as cited in Hershkovitz 1 p. 866). Goeldi's monkeys are the least understood species of platyrrhine. The monkeys' small body size, black coloration, tendency to forage in the low forest understory, and cryptic nature, make them difficult to observe in the wild. Until recently, they had never been th…
Forest use and activity patterns of Callimico goeldii in comparison to two sympatric tamarins, Saguinus fuscicollis and Saguinus labiatus
Callimico goeldii , Saguinus fuscicollis , and S. labiatus are sympatric in northern Bolivia and differ from each other in patterns of spatial and structural use of their environment. C. goeldii has a home range five times larger than that of mixed‐species troops of S. fuscicollis and S. labiatus . The larger overlapping home range of C. goeldii allows it to move among Saguinus troops, giving it access to a wide range of different microhabitats. …
Distribution and density of Callimico goeldii in the Department of Pando, Bolivia
A survey of the distribution and density of Callimico goeldii was conducted at five sites across northwestern Bolivia, in the Department of Pando. C. goeldii was found at two sites north of the Manuripi River, with high densities at one site located along the Acre River. Estimates of habitat availability at these sites suggest that C. goeldii reaches high densities in areas with low human density and well established and extensive bamboo forests.…
Composition and Nutritional Characteristics of Fungi Consumed by Callimico goeldii in Pando, Bolivia
Niche expansion of a cryptic primate, Callimico goeldii , while in mixed species troops
We examined the effects of polyspecific associations on the behavior of one group of Callimico goeldii in northwestern Bolivia. Data were collected for 1 year using focal animal sampling at 5‐min intervals, for a total of 1,375 observation hours. In total, C. goeldii formed mixed species troops with five groups of Saguinus fuscicollis and six groups of S. labiatus , and these were maintained during 81% of observations. C. goeldii rested more and …
Habitat Use and Ranging Behavior of Callimico goeldii
Exudates as a fallback food for Callimico goeldii
Fallback foods have been defined as resources for which a species has evolved specific masticatory and digestive adaptations, and are consumed principally when preferred foods are scarce. In the present field investigation, we examine fungi, fruit, and exudate consumption in one group of Callimico goeldii in order to determine the importance of exudates as a fallback food for this species. Based on a total of 1,198 hr of quantitative behavioral d…
Maternal care and infant development in Callimico goeldii and Callithrix jacchus
Mycophagy and its influence on habitat use and ranging patterns in Callimico goeldii
Mycophagy has been documented in a number of species of marmosets and lion tamarins (Callitrichinae) but its effect on ranging behavior is not known. We present the results of 10 years of research on five groups of Goeldi's monkey ( Callimico goeldii ) at a field site in northwestern Bolivia. We studied the diet and ranging behavior of two of the groups. On average, groups contained 4.5 individuals (range 2.0–9.0), but they gradually decreased in…
Foraging and Spatial Memory in Wild Weddell’s Saddleback Tamarins (Saguinus fuscicollis weddelli) When Moving Between Distant and Out-of-Sight Goals
Navigating in small‐scale space
Recent studies of spatial memory in wild nonhuman primates indicate that foragers may rely on a combination of navigational strategies to locate nearby and distant feeding sites. When traveling in large-scale space, tamarins are reported to encode spatial information in the form of a route-based map. However, little is known concerning how wild tamarins navigate in small-scale space (between feeding sites located at a distance of ≤60 m). Therefor…
Diet and Phylogeny in Primate Communities
Tamarins
Tamarins are reported to live in small multimale-multifemale groups characterized by a single breeding female. Here we present information on the composition and genetic relatedness of individuals in 12 wild-trapped groups of Weddell's saddleback tamarins (Saguinus weddelli) from northern Bolivia to determine if groups are best described as nuclear or extended families suggesting social monogamy or whether groups contain several unrelated same se…
Mother's little helpers
Since Darwin ( ), scientists have been puzzled by how behaviors that impose fitness costs on helpers while benefiting their competitors could evolve through natural selection. Hamilton's ( ) theory of inclusive fitness provided an explanation by showing how cooperative behaviors could be adaptive if directed at closely related kin. Recent studies, however, have begun to question whether kin selection is sufficient to explain cooperative behavior …
The gut microbiome and metabolome of saddleback tamarins ( Leontocebus weddelli)
Body mass is a strong predictor of diet and nutritional requirements across a wide range of mammalian taxa. In the case of small‐bodied primates, because of their limited gut volume, rapid food passage rate, and high metabolic rate, they are hypothesized to maintain high digestive efficiency by exploiting foods rich in protein, fats, and readily available energy. However, our understanding of the dietary requirements of wild primates is limited b…
Variable infant care contributions in cooperatively breeding groups of wild saddleback tamarins
Among non‐human primates, alloparental infant care is most extensive in callitrichines, and is thought to be particularly costly for tamarins whose helpers may suffer increased energy expenditure, weight loss, and reduced feeding time and mobility. The costs and benefits of infant care likely vary among group members yet very few wild studies have investigated variable infant care contributions. We studied infant care over an 8‐month period in fo…
Taxonomic diversity of Cebuella in the western Amazon
OBJECTIVES: We investigated the diversity of the pygmy marmoset, Cebuella pygmaea, by comparing genetic, morphological and pelage traits of animals from Peru and Ecuador. MATERIALS AND METHODS: We extracted DNA from museum specimen osteocrusts and from fecal samples collected from free-ranging individuals. We sequenced the mtDNA cytochrome b gene and the control region from samples collected at 13 different sites and used Bayesian inference and M…
Genetic and Morphological Analyses Confirm the Presence of Cebuella niveiventris (Platyrrhini, Callitrichidae) in Bolivia
Variation in Maternal Effort, Activity Budgets, and Feeding Behavior in Wild Saddleback Tamarins ( Leontocebus weddelli ) in Northwestern Bolivia
Among primates, maternal infant care may vary in response to several factors including litter size, reproductive history, and health status. In cooperative breeders, maternal investment may also depend on the amount of help their group mates (or allomothers) provide. We studied infant care and activity in four wild groups of saddleback tamarins ( Leontocebus weddelli ) and collected hair and fecal samples from which we extracted genomic DNA to es…
Biology (23 works) · Primate Behavior and Ecology (21 works) · Zoology (17 works) · Ecology (15 works) · Primate (9 works) · Animal Behavior and Reproduction (8 works) · Animal ecology (8 works) · Wildlife Ecology and Conservation (8 works) · Animal Vocal Communication and Behavior (7 works) · Ecology (6 works)