2021
DOI: 10.1101/2021.03.29.437596
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Extensive aquatic subsidies lead to territorial breakdown and high density of an apex predator

Abstract: Energetic subsidies between terrestrial and aquatic ecosystems can strongly influence food webs and population dynamics. Our objective was to study how aquatic subsidies affected jaguar (Panthera onca) diet, sociality, and population density in a seasonally flooded protected area in the Brazilian Pantanal. The diet (n = 138 scats) was dominated by fish (46%) and aquatic reptiles (55%), representing the first jaguar population known to feed extensively on fish and to minimally consume mammals (11%). These aquat… Show more

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Cited by 3 publications
(9 citation statements)
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“…Across the three plots provided, we can develop a short narrative of a few major movement characteristics. Within their respective time domains, most of the 7 jaguars have stable fluctuations in position within their territories (with some clear overlap in territories) (Eriksson et al, 2021 ; Fontes et al, 2021 ). However, Jaguar 81 (male, age = 4 years), the jaguar with the longest monitoring window, makes a significant territorial transition from residing in the same region as Jaguar 88 (female, age = 5 years) to the territory of Jaguar 12 (female, age = 4 years).…”
Section: Resultsmentioning
confidence: 99%
“…Across the three plots provided, we can develop a short narrative of a few major movement characteristics. Within their respective time domains, most of the 7 jaguars have stable fluctuations in position within their territories (with some clear overlap in territories) (Eriksson et al, 2021 ; Fontes et al, 2021 ). However, Jaguar 81 (male, age = 4 years), the jaguar with the longest monitoring window, makes a significant territorial transition from residing in the same region as Jaguar 88 (female, age = 5 years) to the territory of Jaguar 12 (female, age = 4 years).…”
Section: Resultsmentioning
confidence: 99%
“…Moreover, the available estimates for jaguar abundance we used 33 are very conservative and probably underestimated jaguar populations from the Pantanal by a maximum of 3 jaguars/100 km 2 . However, the reported density of jaguars may reach up to 12.4 jaguars/100 km 2 in northern PAs 44,45 and up to 6.5-7 jaguars/100 km 2 in the southern Pantanal farms 5,46,47 . Considering that PAs in the northern Pantanal were severely damaged by the 2020 fires, our results show conservative figures for the actual number of jaguars affected by fires.…”
Section: Fires As a Threat To Jaguarsmentioning
confidence: 94%
“…The displacement, injuries, and deaths caused by fire to animals within PAs are worrying because these areas are reportedly richer in diversity and biomass 62,63 (including higher jaguars densities 33,44,64 ) and are fundamental to safeguarding biodiversity and ensuring the long-term provision of ecosystem services 65,66 . Protected areas provide larger continuous areas of natural vegetation cover and limit contact with humans.…”
Section: Fires As a Threat To Jaguarsmentioning
confidence: 99%
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