Feeding Ecology of two Sympatric Species of Aromobatidae, Allobates Marchesianus and Anomaloglossus Stepheni, in Central Amazon

2007 ◽  
Vol 41 (2) ◽  
pp. 301-308 ◽  
Author(s):  
Flora Acuña Juncá ◽  
Paula Cabral Eterovick
Keyword(s):  
Feeding Ecology ◽  
Sympatric Species ◽  
Central Amazon

Feeding ecology of two sympatric species of the genus Jupiaba (Characiformes: Characidae) in streams in the Urucu River Basin, AM, Brazil.

2012 ◽  
Vol 8 (1) ◽  
pp. 59-67 ◽  
Author(s):  
Marina Barreira Mendonça ◽  
Luciano Fogaça de Assis Montag ◽  
Roberta Dannyele Oliveira Raiol ◽  
Wolmar Benjamin Wosiacki
Keyword(s):  
River Basin ◽  
Feeding Ecology ◽  
Sympatric Species

Ancient feeding ecology and niche differentiation of Pleistocene mammalian herbivores from Tarija, Bolivia: morphological and isotopic evidence

Paleobiology ◽  
1997 ◽  
Vol 23 (1) ◽  
pp. 77-100 ◽  
Author(s):  
Bruce J. MacFadden ◽  
Bruce J. Shockey
Keyword(s):  
Feeding Ecology ◽  
Tooth Enamel ◽  
Isotopic Analysis ◽  
Niche Differentiation ◽  
Morphological Characters ◽  
Sympatric Species ◽  
Middle Pleistocene ◽  
Mammalian Fauna ◽  
Feeding Guild ◽  
Mammalian Herbivores

The exceedingly rich middle Pleistocene mammalian fauna from the classic Ensenadan Tarija basin in southern Bolivia contains a diversity of medium to large-bodied herbivores consisting of both endemic (†Toxodontia, †Litopterna, Xenarthra) and immigrant (Rodentia, Proboscidea, Perissodactyla, and Artiodactyla) taxa. In order to characterize feeding ecology and niche differences, a suite of morphological characters was measured for each of 13 species of herbivorous mammals from the Pleistocene of Tarija; these were combined with carbon isotopic results from tooth enamel. (The Xenarthra were excluded from this study because they lack tooth enamel.)Several different bivariate and multivariate combinations of characters can be used to characterize the feeding adaptations, niches, and guild composition of the Tarija mammalian herbivores. During the Pleistocene the browsing guild in the Tarija basin is interpreted to include the tapir (Tapirus tarijensis), extinct llama (Palaeolama weddelli), peccary (Tayassusp.), and deer (Hippocamelussp.). The mixed-feeding guild included two horse species (Hippidion principaleandOnohippidium devillei), litoptern (Macrauchenia patachonica), and capybara (Neochoerus tarijensis). The grazing guild included the numerically dominant horse (Equus insulatus), two lamine species (Lama angustimaxillaand cf.Vicugna, provicugna), notoungulate (Toxodon platensis), and gomphothere proboscidean (Cuvieronius hyodon). The grazing guild has the widest range of body sizes relative to the two other guilds. Closely related sympatric species within the Equidae and Camelidae differentiate their niches from one another using a combination of body size, feeding ecology, and probably local habitat. Most of the paleoecological reconstructions resulting from this combined morphological and isotopic analysis corroborate previous studies based primarily on morphology; there are, however, some notable surprises.

Feeding Ecology of Three Sympatric Species of Leatherjackets (Pisces : Monacanthidae) from a Posidonia Seagrass Habitat in New South Wales

1978 ◽  
Vol 29 (5) ◽  
pp. 631 ◽  
Author(s):  
JD Bell ◽  
JJ Burchmore ◽  
DA Pollard
Keyword(s):  
Feeding Ecology ◽  
Fish Community ◽  
New South ◽  
New South Wales ◽  
Sympatric Species ◽  
Seagrass Habitat ◽  
Total Biomass ◽  
Epiphytic Algae ◽  
South Wales ◽  
Animal Material

Three species of leatherjackets, Monacanthus chinensis, Meuschenia freycineti and Meuschenia trachylepis, averaged 34% of the total biomass and 27% of the total numbers of fishes in a Posidonia australis seagrass habitat near Sydney. Monacanthus chinensis was dominant, comprising 22% of the total biomass and 18% of the total numbers in this fish community. All three species were omnivorous, consuming considerable amounts of seagrass and algae as well as animal material. However, only the encrusting fauna and epiphytic algae of the seagrass appeared to be actually digested. Other foods of all three species included hydroids, molluscs, crustaceans and polychaetes. Meuschenia freycineti consumed the largest quantities (65%) of seagrass, Monacanthus chinensis consumed the largest amount (40%) and greatest variety of animal foods, and Meuschenia trachylepis took the smallest quantity (12%) and number of animal foods and the greatest amount (55 %) of algae. All three species were found to be highly dependent on the encrusting fauna, epi- phytic algae and other epifauna and infauna of this seagrass habitat, and the importance of preserving Posidonia beds is therefore stressed.

scholarly journals Inter-species differences in polychlorinated biphenyls patterns from five sympatric species of odontocetes: Can PCBs be used as tracers of feeding ecology?

2017 ◽  
Vol 74 ◽  
pp. 98-108 ◽  
Author(s):  
Paula Méndez-Fernandez ◽  
Benoit Simon-Bouhet ◽  
Paco Bustamante ◽  
Tiphaine Chouvelon ◽  
Marisa Ferreira ◽  
...  
Keyword(s):  
Polychlorinated Biphenyls ◽  
Feeding Ecology ◽  
Species Differences ◽  
Sympatric Species

scholarly journals FEEDING ECOLOGY OF Cichlasoma amazonarum (Teleostei, Cichlidae) IN THE CENTRAL AMAZON LAKES, BRAZIL.

2015 ◽  
Vol 10 (1) ◽  
Author(s):  
Danielle Pedrociane Cavalcante ◽  
Diana Batista Da Silva ◽  
Helder Lima de Queiroz
Keyword(s):  
Feeding Ecology ◽  
Central Amazon

The zoonotic potential of bat-borne coronaviruses

2020 ◽  
Vol 4 (4) ◽  
pp. 365-381
Author(s):  
Ny Anjara Fifi Ravelomanantsoa ◽  
Sarah Guth ◽  
Angelo Andrianiaina ◽  
Santino Andry ◽  
Anecia Gentles ◽  
...  
Keyword(s):  
Genetic Material ◽  
Field Research ◽  
Sympatric Species ◽  
Animal Origin ◽  
Mammalian Host ◽  
Past Century ◽  
The Past ◽  
Novel Host ◽  
Horseshoe Bat ◽  
Human Infections

Seven zoonoses — human infections of animal origin — have emerged from the Coronaviridae family in the past century, including three viruses responsible for significant human mortality (SARS-CoV, MERS-CoV, and SARS-CoV-2) in the past twenty years alone. These three viruses, in addition to two older CoV zoonoses (HCoV-229E and HCoV-NL63) are believed to be originally derived from wild bat reservoir species. We review the molecular biology of the bat-derived Alpha- and Betacoronavirus genera, highlighting features that contribute to their potential for cross-species emergence, including the use of well-conserved mammalian host cell machinery for cell entry and a unique capacity for adaptation to novel host environments after host switching. The adaptive capacity of coronaviruses largely results from their large genomes, which reduce the risk of deleterious mutational errors and facilitate range-expanding recombination events by offering heightened redundancy in essential genetic material. Large CoV genomes are made possible by the unique proofreading capacity encoded for their RNA-dependent polymerase. We find that bat-borne SARS-related coronaviruses in the subgenus Sarbecovirus, the source clade for SARS-CoV and SARS-CoV-2, present a particularly poignant pandemic threat, due to the extraordinary viral genetic diversity represented among several sympatric species of their horseshoe bat hosts. To date, Sarbecovirus surveillance has been almost entirely restricted to China. More vigorous field research efforts tracking the circulation of Sarbecoviruses specifically and Betacoronaviruses more generally is needed across a broader global range if we are to avoid future repeats of the COVID-19 pandemic.

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