Ajith Kumar
Biographic Data
| ID | 3650215 |
|---|---|
| NAME | Ajith Kumar |
| GIVEN NAMES | Ajith |
| FAMILY NAME | Kumar |
| SIGNATURE | KUMAR A |
| AFFILIATIONS | Salim Ali Center for Ornithology and Natural History |
| ORCID | 0000-0002-7202-5165 |
| VERIFIED | Yes |
| TOTAL WORKS | 17 |
| TOTAL CITATIONS | 6 |
| WORKS AS AUTHOR | 17 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1981 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 1 |
Population assessment of the Endangered Kashmir Gray Langur ( Semnopithecus ajax , Pocock 1928) using the double‐observer method
Primates are among the most threatened taxa globally, therefore, there is a need to estimate and monitor their populations. Kashmir Gray Langur Semnopithecus ajax is an endangered species for which there is no population estimate. We used double‐observer method to estimate its population size in the Kashmir region of North‐Western Himalaya. We walked 1284 km across 31 survey blocks spanning all three divisions of Kashmir viz ., North, Central, an…
Hunting or habitat? Drivers of waterbird abundance and community structure in agricultural wetlands of southern India
The response of the frugivorous lion‐tailed macaque ( Macaca silenus ) to a period of fruit scarcity
Tropical rainforests show seasonal fluctuations in the abundance of fruits resulting in periods of resource scarcity for frugivores. We examined the response of an obligate frugivore, the lion‐tailed macaque (LTM) ( Macaca silenus ), to a period of fruit scarcity in a rainforest in the Western Ghats, India. We estimated the abundance and distribution of fruit resources from food tree densities obtained from 348 point centered quadrats, and fruit …
Exudativory in the Bengal slow loris ( Nycticebus bengalensis ) in Trishna Wildlife Sanctuary, Tripura, northeast India
In this study we estimated the extent of exudativory in Nycticebus bengalensis and examined whether exudates can be considered as fallback foods. This study was carried out in Trishna Wildlife Sanctuary, northeastern India, in winter (December–February) and summer (March and April). We estimated time–activity budget using instantaneous sampling and used continuous focal animal sampling to record all instances and durations of feeding, over a tota…
Winter ecology of the Arunachal macaque Macaca munzala in Pangchen Valley, western Arunachal Pradesh, northeastern India
The newly described Arunachal macaque Macaca munzala occurs largely in sub‐tropical to temperate environments at elevations of c. 1,800–3,000 m in Arunachal Pradesh, northeastern India. We studied its over‐wintering strategy by comparing the diet, ranging, and behavior of a troop of 24 individuals during winter and spring (December 2005 to May 2006) through instantaneous scan sampling (3,002 records, 448 scans, 112 hr of observation). We also mon…
Resource distribution and group size in the common langur Semnopithecus entellus in southern India
We investigated the influence of resource abundance and distribution on the group size and composition of the common langur Semnopithecus entellus in the contiguous forests of Bandipur National Park, Mudumalai Wildlife Sanctuary and Nagarahole National Park in southern India. We also explored any additional effect of predator pressure and the risk of take‐over on the same attributes. Data on group composition and vegetation were collected from Ja…
A simulation study to investigate the use of cutoff values for assessing model fit in covariance structure models
The demography of the lion-tailed macaque (Macaca silenus) in rain forest fragments in the Anamalai Hills, South India
Birth rate and survival in relation to group size in the lion-tailed macaque,Macaca silenus
Leaf chemistry and food selection by common langurs (Presbytis entellus) in Rajaji National Park, Uttar Pradesh, India
Offending estimates in covariance structure analysis
Offending estimates in covariance structure analysis
In this article we discuss, illustrate, and compare the relative efficacy of three recommended approaches for handling negative error variance estimates (i.e., Heywood cases): (a) setting the offending estimate to zero, (b) adopting a model parameterization that ensures positive error variance estimates, and (c) using models with equality constraints that ensure nonnegative (but possibly zero) error variance estimates. The three approaches are ev…
Attitude organization and the attitude-behavior relation
Attitude organization and the attitude–behavior relation
Les auteurs ont reexamine les tests empiriques rapportes par Bagozzi & Burnkrant, concernant la validite convergente et nomologique des modeles d'attitudes a composants multiples ou uniques
Analyzing sequential categorical data on dyadic interaction
Analyzing sequential categorical data on dyadic interaction
Infant development in the lion-tailed macaque,Macaca silenus (Linnaeus)
Leaf chemistry and food selection by common langurs (Presbytis entellus) in Rajaji National Park, Uttar Pradesh, India
Hunting or habitat? Drivers of waterbird abundance and community structure in agricultural wetlands of southern India
Attitude organization and the attitude–behavior relation
Les auteurs ont reexamine les tests empiriques rapportes par Bagozzi & Burnkrant, concernant la validite convergente et nomologique des modeles d'attitudes a composants multiples ou uniques
Infant development in the lion-tailed macaque,Macaca silenus (Linnaeus)
Analyzing sequential categorical data on dyadic interaction
Analyzing sequential categorical data on dyadic interaction
Attitude organization and the attitude-behavior relation
Attitude organization and the attitude–behavior relation
Les auteurs ont reexamine les tests empiriques rapportes par Bagozzi & Burnkrant, concernant la validite convergente et nomologique des modeles d'attitudes a composants multiples ou uniques
Offending estimates in covariance structure analysis
Offending estimates in covariance structure analysis
In this article we discuss, illustrate, and compare the relative efficacy of three recommended approaches for handling negative error variance estimates (i.e., Heywood cases): (a) setting the offending estimate to zero, (b) adopting a model parameterization that ensures positive error variance estimates, and (c) using models with equality constraints that ensure nonnegative (but possibly zero) error variance estimates. The three approaches are ev…
Leaf chemistry and food selection by common langurs (Presbytis entellus) in Rajaji National Park, Uttar Pradesh, India
Birth rate and survival in relation to group size in the lion-tailed macaque,Macaca silenus
The demography of the lion-tailed macaque (Macaca silenus) in rain forest fragments in the Anamalai Hills, South India
A simulation study to investigate the use of cutoff values for assessing model fit in covariance structure models
Resource distribution and group size in the common langur Semnopithecus entellus in southern India
We investigated the influence of resource abundance and distribution on the group size and composition of the common langur Semnopithecus entellus in the contiguous forests of Bandipur National Park, Mudumalai Wildlife Sanctuary and Nagarahole National Park in southern India. We also explored any additional effect of predator pressure and the risk of take‐over on the same attributes. Data on group composition and vegetation were collected from Ja…
Winter ecology of the Arunachal macaque Macaca munzala in Pangchen Valley, western Arunachal Pradesh, northeastern India
The newly described Arunachal macaque Macaca munzala occurs largely in sub‐tropical to temperate environments at elevations of c. 1,800–3,000 m in Arunachal Pradesh, northeastern India. We studied its over‐wintering strategy by comparing the diet, ranging, and behavior of a troop of 24 individuals during winter and spring (December 2005 to May 2006) through instantaneous scan sampling (3,002 records, 448 scans, 112 hr of observation). We also mon…
Exudativory in the Bengal slow loris ( Nycticebus bengalensis ) in Trishna Wildlife Sanctuary, Tripura, northeast India
In this study we estimated the extent of exudativory in Nycticebus bengalensis and examined whether exudates can be considered as fallback foods. This study was carried out in Trishna Wildlife Sanctuary, northeastern India, in winter (December–February) and summer (March and April). We estimated time–activity budget using instantaneous sampling and used continuous focal animal sampling to record all instances and durations of feeding, over a tota…
The response of the frugivorous lion‐tailed macaque ( Macaca silenus ) to a period of fruit scarcity
Tropical rainforests show seasonal fluctuations in the abundance of fruits resulting in periods of resource scarcity for frugivores. We examined the response of an obligate frugivore, the lion‐tailed macaque (LTM) ( Macaca silenus ), to a period of fruit scarcity in a rainforest in the Western Ghats, India. We estimated the abundance and distribution of fruit resources from food tree densities obtained from 348 point centered quadrats, and fruit …
Hunting or habitat? Drivers of waterbird abundance and community structure in agricultural wetlands of southern India
Population assessment of the Endangered Kashmir Gray Langur ( Semnopithecus ajax , Pocock 1928) using the double‐observer method
Primates are among the most threatened taxa globally, therefore, there is a need to estimate and monitor their populations. Kashmir Gray Langur Semnopithecus ajax is an endangered species for which there is no population estimate. We used double‐observer method to estimate its population size in the Kashmir region of North‐Western Himalaya. We walked 1284 km across 31 survey blocks spanning all three divisions of Kashmir viz ., North, Central, an…
Biology (10 works) · Primate Behavior and Ecology (9 works) · Ecology (7 works) · Geography (7 works) · Mathematics (7 works) · Psychology (6 works) · Amphibian and Reptile Biology (5 works) · Demography (5 works) · Econometrics (5 works) · Statistics (5 works)