The Range of Prey Size of the Royal Bengal Tiger of Sundarbans

Mukherjee, Subrat; Sarkar, Neera Sen

doi:10.1155/2013/351756

Cited by 59 publications

(6 citation statements)

References 10 publications

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“…A study on Iberian lynx has also reported the higher abundance of these enzymes in the gut microbiota (Alcaide et al, 2012). Although the diet of these Panthera species mostly comprises of higher vertebrates, a few studies have reported the presence of plant biomass in the scats of leopards, lions, and tigers (Hoppe-Dominik, 1988;Cashman et al, 1992;Mukherjee and Sen Sarkar, 2013;Stein and Hayssen, 2013). Thus, these findings suggest that the gut microbiome of wild felids not only harbors gene sets for the uptake of sugars from primary animal tissues but also from the plant biomass.…”

Section: Discussionmentioning

confidence: 93%

The Gene Catalog and Comparative Analysis of Gut Microbiome of Big Cats Provide New Insights on Panthera Species

Mittal

Saxena

Gupta³

et al. 2020

Front. Microbiol.

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Majority of metagenomic studies in the last decade have focused on revealing the gut microbiomes of humans, rodents, and ruminants; however, the gut microbiome and genic information (gene catalog) of large felids such as Panthera species are largely unknown to date. In this study, the gut bacterial, fungal, and viral metagenomic composition was assessed from three Panthera species (lion, leopard, and tiger) of Indian origin, which were consuming the same diet and belonged to the same geographical location. A non-redundant bacterial gene catalog of the Panthera gut consisting of 1,507,035 putative genes was constructed from 27 Panthera individuals, which revealed a higher abundance of purine metabolism genes correlating with their purine-rich dietary intake. Analysis with Carbohydrate Active enZyme (CAZy) and MEROPS databases identified enrichment of glycoside hydrolases (GHs), glycosidetransferases, and collagenases in the gut, which are important for nutrient acquisition from animal biomass. The bacterial, fungal, and viral community analysis provided the first comprehensive insights into the Panthera-specific microbial community. The Panthera gene catalog and the largest comparative study of the gut bacterial composition of 68 individuals of Carnivora species from different geographical locations and diet underscore the role of diet and geography in shaping the Panthera gut microbiome, which is significant for the health and conservation management of these highly endangered species.

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Section: Discussionmentioning

confidence: 93%

The Gene Catalog and Comparative Analysis of Gut Microbiome of Big Cats Provide New Insights on Panthera Species

Mittal

Saxena

Gupta³

et al. 2020

Front. Microbiol.

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“…Interestingly, the STR was recently accredited by the “CATS Honour” by National Tiger Conservation Authority for its excellent tiger conservation. [ 41 ] This is a piece of good news, and we welcome it. Still, equally, we are eager to see a giant step from all the stakeholders to mitigate climate change impact and livelihood provision for the entire population of Sundarban.…”

Section: Discussionmentioning

confidence: 94%

COVID-19 lockdown and distressed reverse migration enhance human-tiger conflict in Sundarban: An eco-psychiatric observation

Chowdhury

Roy

Brahma

2022

Indian J Psychiatry

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COVID-19 lockdown enforced distressed reverse migration in Sundarban, which caused an unprecedented population addition to the already devastated fragile Sundarban ecosystem. Acute poverty and food crisis prompted many migrants to explore forest-based living, thus enhancing fatal human–tiger conflicts. Families of deceased migrants face significant mental health trauma and catastrophic psychosocial consequences.

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“…As in other cases, this phenomenon is not restricted to South America. In the Sundarbans mangrove of India, tigers prey on water monitors (Varanus salvadorii) that represent as much as 12% of their diet (Mukherjee and Sarkar, 2013). In Africa, fish eagles (Haliaeetus vocifer) and crowned eagles (Stephanoaetus coronatus) are known to prey on the semiaquatic Nile monitor (Boshoff and Palmer, 1994;Stewart et al, 1997), which in turn is a predator of crocodile nests and juveniles (Kofron, 1989).…”

Section: Reptiles As Nutrient Transportersmentioning

confidence: 99%

The Plight of Reptiles as Ecological Actors in the Tropics

Miranda

Everton²

2017

Front. Ecol. Evol.

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Earth's tropical ecosystems have witnessed several extinctions and a dramatic reduction of the range and abundance of large reptile species, which is directly related to the rise of early and modern humans. The occurrence of such extinctions, range reduction, species loss, and the consequences for several paramount ecosystem processes are poorly documented compared to other large vertebrate species. Here, I reviewed the literature on the ecological processes performed by large tropical reptile species and their human-induced widespread demise in order to determine knowledge gaps and encourage a paradigm shift in understanding on the interactiveness of such species. The interactions and species involved indicate that large abundant reptiles in the tropics are important in ecological processes, and can consequently have an important role in ecosystem function through gene dispersal, nutrient cycling, trophic action, and ecosystem engineering. These important interactions performed by reptiles are not solely performed by few species, or geographically restricted to islands, but instead present a pattern that repeatedly occurs in large reptiles distributed over tropical ecosystems. The observed tendency of reptiles to be tightly involved in these ecological interactions has important implications for the ecology of tropical ecosystems. Lost and current ecological processes performed by large reptiles may be orders of magnitude higher than what is currently perceived, and the misleading baseline of those processes must be addressed otherwise we risk losing species and services that are dependent of such interactions. To fix this bias I suggest: (a) Increase information spreading about Pleistocene-Holocene reptile extinctions using popular media; (b) Improved exchange between the research field of megafauna effects in ecosystems and herpetologists working with large reptiles; (c) Increase research effort on anthropogenic reptile extinctions and their potential to predict future losses; (d) Address the knowledge gaps, as human-reptile conflict, chelonian seed dispersal and nutrient movement; (e) Increase quantitative research on large reptile population ecology, density, and abundance. (f) address the potentially present or lost ecosystem effects of extant and extinct reptile species. Although the importance of reptiles in most tropical ecosystems has been perceived as negligible, this study shows that this may be a misleading paradigm.

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The Range of Prey Size of the Royal Bengal Tiger of Sundarbans

Cited by 59 publications

References 10 publications

The Gene Catalog and Comparative Analysis of Gut Microbiome of Big Cats Provide New Insights on Panthera Species

The Gene Catalog and Comparative Analysis of Gut Microbiome of Big Cats Provide New Insights on Panthera Species

COVID-19 lockdown and distressed reverse migration enhance human-tiger conflict in Sundarban: An eco-psychiatric observation

The Plight of Reptiles as Ecological Actors in the Tropics

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