scholarly journals Do not feed the wildlife: associations between garbage use, aggression, and disease in banded mongooses ( Mungos mungo )

2016 ◽  
Vol 6 (16) ◽  
pp. 5932-5939 ◽  
Author(s):  
Bonnie Fairbanks Flint ◽  
Dana M. Hawley ◽  
Kathleen A. Alexander
Keyword(s):  
2008 ◽  
Vol 275 (1640) ◽  
pp. 1313-1319 ◽  
Author(s):  
Matthew B.V Bell

Variation in the intensity of conspicuous displays raises three basic questions: (i) the relationship between internal state and display intensity, (ii) the relationship between display intensity and receiver response, and (iii) the effect of variation in receiver responsiveness on signaller behaviour. Here, I investigate the interaction between pups and helpers in the communally breeding banded mongoose ( Mungos mungo ), where each pup forms an exclusive relationship with a single adult helper (termed its ‘escort’). By experimentally manipulating pup need, I demonstrate that changes in begging rate correspond to changes in short-term need. The data then suggest that escorts in good condition may be more responsive to increased begging and that pups associating with them increase their begging more than do pups paired with escorts in poor condition. Escorts also appear more responsive to increased begging by female pups, and female pups increase their begging more than do male pups. These results suggest that banded mongoose pups may strategically adjust their investment in begging in relation to variation in the expected pay-off. I argue that such adjustment is likely to be a general phenomenon: wherever there is variation in responsiveness to signals, signallers will be selected to identify different categories of receiver and adjust their signals in order to maximize the pay-offs. Therefore, differences in signal intensity may be as much a product of context as an indication of variation in individual phenotypic or genotypic state.


2017 ◽  
Vol 13 (11) ◽  
pp. 20170441 ◽  
Author(s):  
J. Mitchell ◽  
M. A. Cant ◽  
H. J. Nichols

Among mammals, scent has long been known to encode oestrus; however, in many species, detecting pregnancy may also be important in terms of both competition and mate-choice. Here, we show, through odour presentation experiments, that pregnancy is discernible via scent by both sexes in the cooperatively breeding banded mongoose, Mungos mungo . Males spent more time investigating and were more likely to scent mark the odours of non-pregnant females, compared to pregnant females. Females showed increased levels of scent marking when odours were of the same reproductive state as themselves. These results present the first direct demonstration that pregnancy is detectable via scent in wild cooperative breeders. Detecting pregnancy may be particularly important in cooperative breeders as, in addition to the competition between males for receptive mates, there is also intense competition between females for access to alloparental care. Consequently, dominant females benefit from targeting reproductive suppression towards subordinates that represent direct threats, such as pregnant females.


PLoS ONE ◽  
2009 ◽  
Vol 4 (9) ◽  
pp. e6883 ◽  
Author(s):  
Andreas Kurth ◽  
Martin Straube ◽  
Annette Kuczka ◽  
Anton Josef Dunsche ◽  
Hermann Meyer ◽  
...  

2016 ◽  
Vol 46 (7) ◽  
pp. 1249-1251
Author(s):  
Saulo Pereira Cardoso ◽  
Mariana Portugal Mattioli ◽  
Betânia Pereira Borges ◽  
Guilherme Reis Blume ◽  
Janildo Ludolf Reis Júnior ◽  
...  

ABSTRACT: Primary gallbladder neoplasms occur infrequently in domestic animals and rarely in wild animals. This article describes a case of gallbladder adenoma in a mongoose ( Mungos mungo) in captivity. Grossly, the gallbladder was moderately distended with a smooth capsular surface. Necropsy showed an irregular, soft, whitish nodule 0.8cm in diameter. Microscopic examination of the nodule showed proliferation of epithelial cells, which projected from the mucosa and formed papillary projections supported by a sparse fibrovascular stroma. Neoplastic cells were well differentiated with mild anisocytosis and anisokaryosis. Based on these histopathological findings, adenoma of the gallbladder was diagnosed.


Ethology ◽  
2021 ◽  
Vol 127 (10) ◽  
pp. 886-896 ◽  
Author(s):  
P.A. Green ◽  
E.F.R. Preston ◽  
M.H. Nicholl ◽  
D.P. Croft ◽  
F.J. Thompson ◽  
...  
Keyword(s):  

1987 ◽  
Vol 22 (1) ◽  
pp. 341-373 ◽  
Author(s):  
P. Messeri ◽  
E. Masi ◽  
R. Piazza ◽  
F. Dessì-Fulgheri

2017 ◽  
Vol 55 (2) ◽  
pp. 303-309 ◽  
Author(s):  
Kathleen A. Alexander ◽  
Peter N. Laver ◽  
Mark C. Williams ◽  
Claire E. Sanderson ◽  
Carly Kanipe ◽  
...  

Wild banded mongooses ( Mungos mungo) in northeastern Botswana and northwest Zimbabwe are infected with a novel Mycobacterium tuberculosis complex (MTC) pathogen, Mycobacterium mungi. We evaluated gross and histologic lesions in 62 infected mongooses (1999–2017). Many tissues contained multifocal irregular, lymphohistiocytic to granulomatous infiltrates and/or multifocal or coalescing noncaseating to caseating granulomas with variable numbers of intralesional acid-fast bacilli. Over one-third of nasal turbinates examined had submucosal lymphohistiocytic to granulomatous infiltrates, erosion and ulceration of the nasal mucosa, bony remodeling, and nasal distortion. Similar inflammatory cell infiltrates expanded the dermis of the nasal planum with frequent ulceration. However, even in cases with intact epidermis, acid-fast bacilli were present in variable numbers among dermal infiltrates and on the epidermal surface among desquamated cells and debris, most commonly in small crevices or folds. In general, tissue involvement varied among cases but was highest in lymph nodes (50/54, 93%), liver (39/53, 74%), spleen (37/51, 73%), and anal glands/sacs (6/8, 75%). Pulmonary lesions were present in 67% of sampled mongooses (35/52) but only in advanced disseminated disease. The pathological presentation of M. mungi in the banded mongoose is consistent with pathogen shedding occurring through scent-marking behaviors (urine and anal gland secretions) with new infections arising from contact with these contaminated olfactory secretions and percutaneous movement of the pathogen through breaks in the skin, nasal planum, and/or skin of the snout. Given the character and distribution of lesions and the presence of intracellular acid-fast bacilli, we hypothesize that pathogen spread occurs within the body through a hematogenous and/or lymphatic route. Features of prototypical granulomas such as multinucleated giant cells and peripheral fibrosis were rarely present in affected mongooses. Acid-fast bacilli were consistently found intracellularly, even in regions of necrosis. The mongoose genome has a unique deletion (RD1mon) that includes part of the encoding region for PPE68 (Rv3873), a gene co-operonic with PE35. These proteins can influence the host’s cellular immune response to mycobacterial infections, and it remains uncertain how this deletion might contribute to observed patterns of pathology. M. mungi infection in banded mongooses is characterized by both a unique transmission and exposure route, as well as accompanying pathological features, providing an opportunity to increase our understanding of MTC pathogenesis across host-pathogen systems.


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