scholarly journals Nutrient‐specific compensation for seasonal cold stress in a free‐ranging temperate colobine monkey

2018 ◽  
Vol 32 (9) ◽  
pp. 2170-2180 ◽  
Author(s):  
Song‐Tao Guo ◽  
Rong Hou ◽  
Paul A. Garber ◽  
David Raubenheimer ◽  
Nicoletta Righini ◽  
...  
Keyword(s):  
Cold Stress ◽  
Colobine Monkey ◽  
Free Ranging

scholarly journals A newly discovered behavior (‘tail-belting’) among wild rodents in sub zero conditions

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Rafal Stryjek ◽  
Michael H. Parsons ◽  
Piotr Bebas
Keyword(s):  
Cold Stress ◽  
Thermal Adaptation ◽  
First Record ◽  
Future Research ◽  
Apodemus Flavicollis ◽  
Imaging Data ◽  
Wild Rodents ◽  
Apodemus Agrarius ◽  
In The Wild ◽  
Free Ranging

AbstractRodents are among the most successful mammals because they have the ability to adapt to a broad range of environmental conditions. Here, we present the first record of a previously unknown thermal adaptation to cold stress that repeatedly occurred in two species of non-commensal rodents (Apodemus flavicollis and Apodemus agrarius). The classic rodent literature implies that rodents prevent heat loss via a broad range of behavioral adaptations including sheltering, sitting on their tails, curling into a ball, or huddling with conspecifics. Here, we have repeatedly observed an undescribed behavior which we refer to as “tail-belting”. This behavior was performed under cold stress, whereby animals lift and curl the tail medially, before resting it on the dorsal, medial rump while feeding or resting. We documented 115 instances of the tail-belting behavior; 38 in Apodemus agrarius, and 77 in Apodemus flavicollis. Thermal imaging data show the tails remained near ambient temperature even when temperatures were below 0 °C. Since the tail-belting occurred only when the temperature dropped below − 6.9 °C (for A. flavicollis) and − 9.5 °C (for A. agrarius), we surmise that frostbite prevention may be the primary reason for this adaptation. It is likely that tail-belting has not previously been documented because free-ranging mice are rarely-recorded in the wild under extreme cold conditions. Given that these animals are so closely-related to laboratory rodents, this knowledge could potentially be relevant to researchers in various disciplines. We conclude by setting several directions for future research in this area.

Lateralization in trunk and forefoot movements in a population of free-ranging Asian elephants (Elephas maximus).

2015 ◽  
Vol 129 (4) ◽  
pp. 377-387 ◽  
Author(s):  
P. Keerthipriya ◽  
Rachna Tewari ◽  
T. N. C. Vidya
Keyword(s):  
Elephas Maximus ◽  
Asian Elephants ◽  
Free Ranging

Investigation of duck plague virus in hoar areas of Bangladesh

2020 ◽  
Vol 26 (1-2) ◽  
pp. 73-78
Author(s):  
A Hossen ◽  
MH Rahman ◽  
MZ Ali ◽  
MA Yousuf ◽  
MZ Hassan ◽  
...  
Keyword(s):  
Cytopathic Effect ◽  
Clinical Sample ◽  
Chorioallantoic Membrane ◽  
Clinical Samples ◽  
Isolation And Identification ◽  
Duck Plague Virus ◽  
Pcr Method ◽  
Polymerase Chain ◽  
The Individual ◽  
Free Ranging

Duck plague (DP) is the most important infectious disease of geese, ducks and free-ranging water birds. The present study was conducted to determine the prevalence of duck plague virus followed by isolation and identification. For these purposes, a total of 155 cloacal swabs samples were collected randomly from duck of different haor areas of Bangladesh including 45 (41 surveillance and 4 clinical) samples from Netrokona; 42 (40 surveillance and 2 clinical) samples from Kishoregonj; 30 samples from Brahmanbaria and 38 samples from Sunamganj. The samples were processed and pooled (1:5 ratio) for initial screening of target polymerase gene of duck plague virus by polymerase chain reaction (PCR) method. All the samples of a positive pool were then tested individually for identifying the individual positive samples. The result showed that out of 155 samples, 41 (26.45%) were found positive in which 17 were from Netrokona, where 15 (36.58%) were from surveillance samples and 2 (50%) were from clinical sample; 16 were from Kishoregonj, where 14 (35%) were from surveillance samples and 2 (100%) were from clinical sample; 2 (6.6%) were from Brahmanbaria and 5 (13.15%) were from Sunamganj. These positive samples were inoculated into 9-10 days embryonated duck eggs (EDE) through chorioallantoic membrane (CAM) route for the isolation of virus. The EDE died earlier was also chilled, and in a similar way, the CAMs were collected and again performed PCR for id entification of virus. Out of 41 PCR positive samples, 26 samples were isolated and reconfirmed by PCR. Subsequently, DPV was isolated in primary duck embryo fibroblasts cell culture and confirmed by observing cytopathic effect (CPE). Bang. J. Livs. Res. Vol. 26 (1&2), 2019: P. 73-78

Clinical signs in free-ranging Guiana dolphins Sotalia guianensis during a morbillivirus epidemic: case study in Sepetiba Bay, Brazil

2019 ◽  
Vol 133 (3) ◽  
pp. 175-180 ◽  
Author(s):  
L Flach ◽  
MB Alonso ◽  
T Marinho ◽  
K Van Waerebeek ◽  
MF Van Bressem
Keyword(s):  
Clinical Signs ◽  
Sepetiba Bay ◽  
Sotalia Guianensis ◽  
Free Ranging

Pulmonary hair embolism in a rescued free-ranging Eurasian otter Lutra lutra in Kinmen, Taiwan

2020 ◽  
Vol 142 ◽  
pp. 55-61
Author(s):  
WT Li ◽  
YL Chiang ◽  
TY Chen ◽  
CL Lai
Keyword(s):  
Foreign Body ◽  
Traumatic Injury ◽  
Lung Parenchyma ◽  
Giant Cells ◽  
Hair Shaft ◽  
Lutra Lutra ◽  
Lung Lobe ◽  
Eurasian Otter ◽  
Foreign Body Giant Cells ◽  
Free Ranging

Eurasian otters Lutra lutra are listed as Near Threatened on the IUCN Red List and are imperiled by habitat loss, water pollution, and poaching. Harassment and attacks by stray animals are also recognized threats to the health of wild Eurasian otters. Pulmonary hair embolism is a possible complication in animals with deep traumatic injury, but to date no cases have been reported in wildlife. A free-ranging, adult male Eurasian otter was rescued due to severe emaciation and multiple bite wounds. The otter died 3 d after rescue and was necropsied. Grossly, a 1.5 × 1.5 × 1.5 cm firm nodule was observed in the left cranial lung lobe. Histologically, a fragment of hair shaft surrounded by multinucleated foreign body giant cells was observed in a medium-sized vein, and extensive eosinophilic infiltration was noted in the adjacent vascular wall and lung parenchyma. Based on the gross and histological findings, the pulmonary lesion was consistent with eosinophilic pneumonia and vasculitis induced by hair embolism. The presence of well-formed multinucleated foreign body giant cells and eosinophils may imply a late stage of foreign body reaction, and thus the presumptive source of hair embolism is an animal bite. This is the first report of pulmonary hair embolism associated with animal bite in a rescued free-ranging Eurasian otter.

Pyogranulomatous obliterative laryngotracheitis by Rhizopus arrhizus (syn. R. oryzae) in a free-ranging Atlantic spotted dolphin Stenella frontalis

2018 ◽  
Vol 130 (2) ◽  
pp. 153-158
Author(s):  
A Cerezo ◽  
O Quesada-Canales ◽  
E Sierra ◽  
J Díaz-Delgado ◽  
A Fernández ◽  
...  
Keyword(s):  
Rhizopus Arrhizus ◽  
Stenella Frontalis ◽  
Spotted Dolphin ◽  
Free Ranging

Pathological features of the Florida manatee cold stress syndrome

2003 ◽  
Vol 29 (1) ◽  
pp. 9-17 ◽  
Author(s):  
Gregory D. Bossart ◽  
René A. Meisner ◽  
S. A. Rommel ◽  
Shin-Je Ghim ◽  
A. Bennett Jenson
Keyword(s):  
Cold Stress ◽  
Pathological Features ◽  
Florida Manatee ◽  
Stress Syndrome

Viability of Photo-Identification as a Tool to Examine the Prevalence of Lesions on Free-Ranging Common Dolphins (Delphinus sp.)

2017 ◽  
Vol 43 (3) ◽  
pp. 264-278 ◽  
Author(s):  
Krista E. Hupman ◽  
Matthew D. M. Pawley ◽  
Catherine Lea ◽  
Charli Grimes ◽  
Sabrina Voswinkel ◽  
...  
Keyword(s):  
Photo Identification ◽  
Free Ranging ◽  
Common Dolphins
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