Adult Male Replacement in One-Male Troops of Purple-Faced Langurs (Presbytis senex senex) and its Effect on Population Structure

1973 ◽  
Vol 19 (2-3) ◽  
pp. 166-192 ◽  
Author(s):  
R. Rudran
Keyword(s):  
Population Structure ◽  
Adult Male ◽  
Male Replacement

scholarly journals New size record for Snapping Turtle (Chelydra serpentina) in southern Quebec, Canada

2019 ◽  
Vol 132 (4) ◽  
pp. 378-381
Author(s):  
Patrick Galois ◽  
Ève-Lyne Grenier ◽  
Martin Ouellet
Keyword(s):  
Population Structure ◽  
Adult Male ◽  
General Condition ◽  
Carapace Length ◽  
Maximum Size ◽  
Chelydra Serpentina ◽  
Snapping Turtle ◽  
Good General Condition ◽  
Turtle Population ◽  
Local Habitat

We report a new size record for a Snapping Turtle (Chelydra serpentina) in Quebec, Canada. We captured an adult male in good general condition in the Rivière du Sud in the southern Montérégie region. Its straight midline carapace length was 43.2 cm (maximum carapace length 45.1 cm), and it weighed 19.8 kg. This record contributes to our understanding of the maximum size of this species at the northeastern part of its range. More intensive effort will be necessary to document the Snapping Turtle population structure in Quebec to allow for sound comparisons with other populations, as well as a better understanding of the effects of elevation, latitude, and local habitat on Snapping Turtle growth and size.

scholarly journals First Records of the Northern Long-eared Bat, Myotis septentrionalis, in the Yukon Territory

2006 ◽  
Vol 120 (1) ◽  
pp. 39 ◽  
Author(s):  
Thomas S. Jung ◽  
Brian G. Slough ◽  
David W. Nagorsen ◽  
Tanya A. Dewey ◽  
Todd Powell
Keyword(s):  
Population Structure ◽  
North America ◽  
Adult Male ◽  
Yukon Territory ◽  
River Valley ◽  
Myotis Septentrionalis ◽  
Northwestern North America

Three adult male Northern Long-eared Bats, Myotis septentrionalis, were captured in mist nets in July 2004 in the LaBiche River Valley, southeastern Yukon. These are the first records of M. septentrionalis in the Yukon. Further survey work is needed to delineate the extent of the range and population structure of this and other species of bats in northwestern North America.

Adult Male Replacement in Socially Monogamous Equatorial Saki Monkeys (Pithecia aequatorialis)

2007 ◽  
Vol 78 (2) ◽  
pp. 88-98 ◽  
Author(s):  
Anthony Di Fiore ◽  
Eduardo Fernandez-Duque ◽  
Delanie Hurst
Keyword(s):  
Adult Male ◽  
Socially Monogamous ◽  
Male Replacement

scholarly journals Dynamics of population structure of two species of Echinogammarus genus (Gammaridae, Amphipoda) from Laspi Bay (Crimea, Black Sea)

2016 ◽  
Vol 1 (3) ◽  
pp. 22-26 ◽  
Author(s):  
V. A. Grintsov
Keyword(s):  
Population Structure ◽  
Black Sea ◽  
Adult Male ◽  
Coastal Waters ◽  
Abundant Species ◽  
Coastal Ecosystems ◽  
Male And Female ◽  
Estimation And Prediction ◽  
Dynamics Of Population ◽  
Gravel Beach

The investigation of population structure of abundant species of invertebrata in coastal waters is important for estimation and prediction of life of coastal ecosystems. Population structure of two abundant species of Amphipoda (Echinogammarus karadagiensis Grintsov, 2009 and Echinogammarus foxi (Schellenberg, 1928)) from coastal waters of sand-gravel beach was investigated. Specimens were collected from sand-gravel samples. 50 specimens were collected and analyzed in each sample. Some important elements of population structure (length of specimens, proportion of adult male and female, proportion of adult and juvenile specimens, number of eggs in females) were investigated.

scholarly journals Residential Population Structure and Abundance of Nilgai, Boselaphus tragocamelus, (Pallas) in Bihar, India

2020 ◽  
pp. 110-117
Author(s):  
Suday Prasad ◽  
D. K. Singh ◽  
S. K. Choudhary
Keyword(s):  
Population Structure ◽  
Sex Ratio ◽  
Adult Male ◽  
Agricultural Land ◽  
Group Structure ◽  
Direct Methods ◽  
Oxbow Lake ◽  
Migration Behavior ◽  
Plain Area ◽  
Agrarian Society

Nilgai (Boselaphus tragocamelus) is one of the most discussed animals after cow in agrarian society of India. However, conflict between farmers and Nilgai due to its habitat loss and the increased damage to the crops by this wild species in the agricultural lands. Present paper deals with the study conducted on the population structure, size group and abundance of Nilgai inhabiting Shahabad region in Dumraon (Buxar) Bihar, India from January, 2014 to December, 2015. Survey was performed in the morning to evening time on the specific days by motorcycle and walking, where, there was no local footpath due to difficult, undulated study area. The direct methods utilized sighting of animals carefully from a close distance and behavior of the animal were observed. During the course of study 07 herds with total 407 numbers of Nilgai were counted through direct sighting with from closed distance. The density of Nilgai was found under 431.10 acre are as covered in Haryana Cattle Breeding Farm (HCBF) and its surrounding in Dumraon. The sex ratio of Nilgai with age group structure of the population was represented in percentage. Female biased adult male, ratio was found 1:3. While overall sex ratio was found 14.25% male, 38.57% female, 9.58% semi adult male, 20.15% semi adult female, and 18.46% calves respectively. Female Nilgai has been observed social like behavior and grazing with juveniles in a group but males were found in scattered form. Nilgai migrate for food towards agricultural land during dusk and return to HCBF with less human activity during dawn. This shows mark migration behavior during summer and rainy season. Some Nilgai migrations were observed for searching food and water during summer from south upward plain region of Dumraon to low-lying north plain area near Bhagar oxbow lake Simri, Chakki and Brahampur.

Adult male replacement in a group of silvered leaf-monkeys (Presbytis cristata) at Kuala Selangor, Malaysia

Primates ◽  
1977 ◽  
Vol 18 (4) ◽  
pp. 949-955 ◽  
Author(s):  
Katherine E. Wolf ◽  
John G. Fleagle
Keyword(s):  
Adult Male ◽  
Male Replacement ◽  
Leaf Monkeys

scholarly journals Adult male replacement and subsequent infant care by male and siblings in socially monogamous owl monkeys (Aotus azarai)

Primates ◽  
2007 ◽  
Vol 49 (1) ◽  
pp. 81-84 ◽  
Author(s):  
Eduardo Fernandez-Duque ◽  
Cecilia Paola Juárez ◽  
Anthony Di Fiore
Keyword(s):  
Adult Male ◽  
Infant Care ◽  
Socially Monogamous ◽  
Owl Monkeys ◽  
Male Replacement
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