Martin Kowalewski
Datos Biográficos
| ID | 232343 |
|---|---|
| NOMBRE | Martin Kowalewski |
| NOMBRES | Martin |
| APELLIDO | Kowalewski |
| FIRMA | KOWALEWSKI M |
| AFILIACIONES | Centro Científico Tecnológico - Nordeste |
| ORCID | 0000-0002-6737-3771 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 32 |
| TOTAL DE CITAS | 24 |
| TOTAL COMO AUTOR | 32 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2005 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2026 |
| ÍNDICE H | 3 |
Population densities of black-and-gold howler monkeys (Alouatta caraya) in northeastern Argentina and the possible influence of a yellow fever outbreak
Landscape Attributes Shape Population Density Patterns of Black and Gold Howler Monkeys ( Alouatta caraya ) Across Their Southern Range
Understanding the drivers of spatial variation in primate population attributes is essential, especially in human‐modified landscapes. However, most research has focused on assessing the effects of forest patch size on presence‐absence data rather than how landscape attributes can shape population density. Numerous studies have presented data on Alouatta caraya ( A. caraya ) populations across their distribution, revealing variation in population…
Demographic Structure of Black and Gold Howler Monkeys ( Alouatta caraya ) in Northeastern Argentina
Yellow fever (YF) outbreaks and anthropogenic fires are major sources of mortality in Neotropical primates, yet their legacy effects on population structure and reproductive output remain poorly quantified. We conducted a comparative assessment of black and gold howler monkey population ( Alouatta caraya ) across three population contexts in northeastern Argentina: (1) Yellow fever‐affected, (2) Yellow fever‐free populations, (3) a fire‐affected …
Gastrointestinal Parasites in Black-Horned Capuchins (Sapajus nigritus cucullatus) and Domestic Animals at the Human–Wildlife Interface in the Atlantic Forest of Misiones, Argentina
Inside a monkey with rhea feathers
Male adoption in the black and gold howler monkey (Alouatta caraya)
Distribución histórica del mono aullador negro y dorado al sur de la Mesopotamia Argentina
The black-and-gold howler monkey, Alouatta caraya, is an arboreal primate that inhabits the northeastern region of Argentina, from the provinces of Formosa and Misiones to northeastern Santa Fe and central Corrientes. This distribution has not changed dramatically from its historical distribution. However, it has been proposed that the species inhabited the northwestern region of Entre Ríos. The aim of this paper was to analyze paleontological an…
Tourist Knowledge of and Beliefs about Wild Capuchin Monkeys (Sapajus nigritus) at Iguazú National Park, Argentina
Best practices are never best
Who do we aim to educate with primate conservation education programs (PCEPs)? In a commentary published in a recent AJP, Annette Lanjouw suggested that many efforts to “educate” habitat‐country communities can be neocolonial in their approaches. Forest destruction and habitat loss are a result of global consumption and expansion. We therefore need to approach conservation education from many angles including local stakeholders, policy makers, go…
Aggression between Alouatta caraya males in forest patches in northern Argentina
No abstract
Influence of Weather Conditions on Sleeping Patterns and Selection of Foliage Cover of Sleeping Trees in Black-and-Gold, Howler Monkeys (Alouatta caraya) in Northern Argentina
Use of genetic tools to assess predation on reintroduced howler monkeys (Alouatta caraya) in Northeastern Argentina
The Effects of Social Factors and Kinship on Co-sleeping of Black-and-Gold Howler Monkeys (Alouatta caraya)
Germination of native and exotic seeds dispersed by wild black-and-gold howler monkeys (Alouatta caraya)
Patterns of Sleeping Site and Sleeping Tree Selection by Black-and-Gold Howler Monkeys (Alouatta caraya) in Northern Argentina
Social play among black and gold howler monkey ( Alouatta caraya ) immatures during intergroup encounters
We studied intergroup social play (IGSP) among immatures in wild black and gold howler monkeys (Alouatta caraya) in northeastern Argentina. IGSP events are one form of affiliative interaction that can occur during intergroup encounters. The main goal of this study was to analyze IGSP in A. caraya immatures and assess how intrinsic (e.g., age and sex) and extrinsic (e.g., seasonality) factors can influence the development of this type of social be…
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…
Validation of an enzyme immunoassay and comparison of fecal cortisol metabolite levels in black and gold howler monkeys ( Alouatta caraya ) inhabiting fragmented and continuous areas of the humid Chac…
In the last years, the study of how environmental stimuli influence the physiology and specifically the endocrinology of an organism became increasingly important, relying mainly on the quantification of glucocorticoids to monitor animal welfare. Most studies investigating cortisol levels in primates were focused on the impact of social stressors; however, a major concern for the conservation of howler monkeys is the increased habitat fragmentati…
Sex differences in the behavior of wild Alouatta caraya infants
Determinants of daily path length in black and gold howler monkeys ( Alouatta caraya ) in northeastern Argentina
Models used to explain the social organization of primates suggest that variation in daily path length (DPL) is a response to variation in resource distribution and the intensity of intragroup feeding competition. However, daily path length may be affected by a number of other factors including the availability and distribution of nutritionally complementary food items, temperature which can influence activity budget, patterns of subgrouping, and…
How do demographic and social factors influence parent‐offspring conflict? The case of wild black and gold howler monkeys ( Alouatta caraya )
In this study, we examined the influence of demography and social context on mother-offspring conflict in wild black and gold howler monkeys (Alouatta caraya) inhabiting two nearby sites in northern Argentina, one comprising continuous forest and one fragmented forest. These sites differed in population density (3.25 vs. 1.04 individuals/ha), degree of home range overlap between neighboring groups (70 vs. 31%), and rate of intergroup encounters (…
Male reproductive strategies in black and gold howler monkeys ( Alouatta caraya )
Behavioral and demographic factors such as group size, social structure, dispersal patterns, and mating systems affect male reproductive success. In the present study, we analyze the relationship between social structure, genetic relatedness of adult males and offspring paternity in one population of Alouatta caraya inhabiting a continuous forest in Northern Argentina. After 14 months of behavioral studies and genotyping 11 microsatellites, we fo…
Who is coordinating collective movements in black and gold howler monkeys?
Infant Mortality in Black-and-Gold Howlers (Alouatta caraya) Living in a Flooded Forest in Northeastern Argentina
Black and gold howler monkeys ( Alouatta caraya ) as sentinels of ecosystem health
Exponential expansion of human populations and human activities within primate habitats has resulted in high potential for pathogen exchange creating challenges for biodiversity conservation and global health. Under such conditions, resilient habitat generalists such as black and gold howler monkeys ( Alouatta caraya ) may act as effective sentinels to overall ecosystem health and alert us to impending epidemics in the human population. To better…
Genetic Consequences of Habitat Fragmentation in Black-and-Gold Howler (Alouatta caraya) Populations from Northern Argentina
Patterns of Sleeping Site and Sleeping Tree Selection by Black-and-Gold Howler Monkeys (Alouatta caraya) in Northern Argentina
Infant Mortality in Black-and-Gold Howlers (Alouatta caraya) Living in a Flooded Forest in Northeastern Argentina
Aggression between Alouatta caraya males in forest patches in northern Argentina
No abstract
The Effects of Social Factors and Kinship on Co-sleeping of Black-and-Gold Howler Monkeys (Alouatta caraya)
Serum Nutritional Profiles of Free-Ranging Alouatta Caraya in Northern Argentina
Conservation in Fragments, Behavioral Plasticity, and the Use of Tools in Neotropical Primates
Habitat fragmentation and population size of the black and gold howler monkey ( Alouatta caraya ) in a semideciduous forest in Northern Argentina
A population of black and gold howler monkeys ( Alouatta caraya ) living near the southern limit of its distribution in a semideciduous forest located in northern Argentina was studied in 2003 to evaluate the possible effects of habitat fragmentation – owing to logging – on its density and social organization within it. Aerial photographs taken in 1982, 1992, and 2001 were used to compare maps of vegetation. These maps were used to evaluate chang…
Serum Nutritional Profiles of Free-Ranging Alouatta Caraya in Northern Argentina
Births in wild black and gold howler monkeys ( Alouatta caraya ) in Northern Argentina
Previous studies on births in nonhuman primates suggest that births are expected to occur at night to avoid predators. Here, we describe birth‐related behaviors in wild black and gold howler monkeys, Alouatta caraya and address the various ideas proposed in the literature about the timing of births in group‐living nonhuman primates. We collected data on females' birth‐related behaviors through continuous focal observations and scan samples. Focal…
Preliminary study of mother–offspring conflict in black and gold howler monkeys (Alouatta caraya)
Mating promiscuity and reproductive tactics in female black and gold howler monkeys ( Alouatta caraya ) inhabiting an island on the Parana river, Argentina
In several primate species, females mate promiscuously and several adult males peacefully co‐reside in the same social group. We investigated female mating behavior in two neighboring multimale–multifemale groups of Alouatta caraya in northern Argentina (27°20′S–58°40′W). All adult individuals in each group were marked with identification anklets and ear tags, and followed for five consecutive full days per month during 20 consecutive months. We …
Genetic Consequences of Habitat Fragmentation in Black-and-Gold Howler (Alouatta caraya) Populations from Northern Argentina
Black and gold howler monkeys ( Alouatta caraya ) as sentinels of ecosystem health
Exponential expansion of human populations and human activities within primate habitats has resulted in high potential for pathogen exchange creating challenges for biodiversity conservation and global health. Under such conditions, resilient habitat generalists such as black and gold howler monkeys ( Alouatta caraya ) may act as effective sentinels to overall ecosystem health and alert us to impending epidemics in the human population. To better…
Infant Mortality in Black-and-Gold Howlers (Alouatta caraya) Living in a Flooded Forest in Northeastern Argentina
Who is coordinating collective movements in black and gold howler monkeys?
Male reproductive strategies in black and gold howler monkeys ( Alouatta caraya )
Behavioral and demographic factors such as group size, social structure, dispersal patterns, and mating systems affect male reproductive success. In the present study, we analyze the relationship between social structure, genetic relatedness of adult males and offspring paternity in one population of Alouatta caraya inhabiting a continuous forest in Northern Argentina. After 14 months of behavioral studies and genotyping 11 microsatellites, we fo…
How do demographic and social factors influence parent‐offspring conflict? The case of wild black and gold howler monkeys ( Alouatta caraya )
In this study, we examined the influence of demography and social context on mother-offspring conflict in wild black and gold howler monkeys (Alouatta caraya) inhabiting two nearby sites in northern Argentina, one comprising continuous forest and one fragmented forest. These sites differed in population density (3.25 vs. 1.04 individuals/ha), degree of home range overlap between neighboring groups (70 vs. 31%), and rate of intergroup encounters (…
Sex differences in the behavior of wild Alouatta caraya infants
Determinants of daily path length in black and gold howler monkeys ( Alouatta caraya ) in northeastern Argentina
Models used to explain the social organization of primates suggest that variation in daily path length (DPL) is a response to variation in resource distribution and the intensity of intragroup feeding competition. However, daily path length may be affected by a number of other factors including the availability and distribution of nutritionally complementary food items, temperature which can influence activity budget, patterns of subgrouping, and…
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…
Validation of an enzyme immunoassay and comparison of fecal cortisol metabolite levels in black and gold howler monkeys ( Alouatta caraya ) inhabiting fragmented and continuous areas of the humid Chac…
In the last years, the study of how environmental stimuli influence the physiology and specifically the endocrinology of an organism became increasingly important, relying mainly on the quantification of glucocorticoids to monitor animal welfare. Most studies investigating cortisol levels in primates were focused on the impact of social stressors; however, a major concern for the conservation of howler monkeys is the increased habitat fragmentati…
Social play among black and gold howler monkey ( Alouatta caraya ) immatures during intergroup encounters
We studied intergroup social play (IGSP) among immatures in wild black and gold howler monkeys (Alouatta caraya) in northeastern Argentina. IGSP events are one form of affiliative interaction that can occur during intergroup encounters. The main goal of this study was to analyze IGSP in A. caraya immatures and assess how intrinsic (e.g., age and sex) and extrinsic (e.g., seasonality) factors can influence the development of this type of social be…
Patterns of Sleeping Site and Sleeping Tree Selection by Black-and-Gold Howler Monkeys (Alouatta caraya) in Northern Argentina
Germination of native and exotic seeds dispersed by wild black-and-gold howler monkeys (Alouatta caraya)
Use of genetic tools to assess predation on reintroduced howler monkeys (Alouatta caraya) in Northeastern Argentina
The Effects of Social Factors and Kinship on Co-sleeping of Black-and-Gold Howler Monkeys (Alouatta caraya)
Best practices are never best
Who do we aim to educate with primate conservation education programs (PCEPs)? In a commentary published in a recent AJP, Annette Lanjouw suggested that many efforts to “educate” habitat‐country communities can be neocolonial in their approaches. Forest destruction and habitat loss are a result of global consumption and expansion. We therefore need to approach conservation education from many angles including local stakeholders, policy makers, go…
Aggression between Alouatta caraya males in forest patches in northern Argentina
No abstract
Influence of Weather Conditions on Sleeping Patterns and Selection of Foliage Cover of Sleeping Trees in Black-and-Gold, Howler Monkeys (Alouatta caraya) in Northern Argentina
Tourist Knowledge of and Beliefs about Wild Capuchin Monkeys (Sapajus nigritus) at Iguazú National Park, Argentina
Primate Behavior and Ecology (31 obras) · Biology (25 obras) · Ecology (18 obras) · Zoology (18 obras) · Animal ecology (15 obras) · Animal Behavior and Reproduction (13 obras) · Animal Vocal Communication and Behavior (13 obras) · Demography (12 obras) · Population (12 obras) · Primate (10 obras)