White-lipped peccaries are recorded at Iguaçu National Park after 20 years

Brocardo, Carlos Rodrigo; Silva, Marina Xavier da; Delgado, Luís Eduardo da Silveira; Galetti, Mauro

doi:10.1515/mammalia-2016-0049

Cited by 5 publications

(4 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the larger Iguaçu National Park and adjacent northern Misiones province in Argentina, WLPs disappeared around 1995. Years of surveys confirmed their absence until several individuals were detected with camera traps in 2016, likely immigrating from nearby forested areas in Argentina 22 . In Turvo State Park (Rio Grande do Sul State, Brazil), WLPs disappeared in 1980 and have not been seen since then (S1).…”

Section: Main Textmentioning

confidence: 89%

Mysterious disappearances of a large mammal in Neotropical forests

Fragoso

Antunes²,

Altrichter

et al. 2020

Preprint

View full text Add to dashboard Cite

SummaryThe drivers of periodic population cycling by some animal species in northern systems remain unresolved1. Mysterious disappearances of populations of the Neotropical, herdforming white-lipped peccary (Tayassu pecari, henceforth “WLP”) have been anecdotally documented and explained as local events resulting from migratory movements or overhunting2,3,4, or as disease outbreaks5,6, and have not been considered in the context of large-scale species-specific population dynamics. Here we present evidence that WLP disappearances represent troughs in population cycles that occur with regular periodicity and are synchronized at regional and perhaps continent-wide spatial scales. Analysis of 43 disappearance events and 88 years of commercial and subsistence harvesting data reveals boom – bust population cycles lasting from 20 to 30 years, in which a rapid population crash occurring over 1 to 5 years is followed by a period of absence of 7 to12 years and then a slow growth phase. Overhunting alone cannot explain the crashes, but as in northern systems dispersal during the growth phase appears to play a key role. This is the first documentation of population cycling in a tropical vertebrate.

show abstract

Section: Main Textmentioning

confidence: 89%

Mysterious disappearances of a large mammal in Neotropical forests

Fragoso

Antunes²,

Altrichter

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Study areas varied from 8 to 181,000 ha (more details about study sites see Supplemental Material). Araucaria moist forest fragments, in general, experienced timber extraction and reduction in seed predator and disperser communities (Brocardo and Cândido-Jr, 2012), while two of our continuous areas represented more intact seed predator community (Iguaçu National Park and Campos do Jordão State Park) (Brocardo et al, 2017), and a third continuous area (Alto- Table S1. Montana Reserve) exhibited an impoverished native fauna composition, with the presence of the exotic and invasive wild boar (Sus scrofa) (Table S2).…”

Section: Study Areasmentioning

confidence: 98%

Forest fragmentation and selective logging affect the seed survival and recruitment of a relictual conifer

Brocardo

Pedrosa

Galetti

2018

Forest Ecology and Management

Self Cite

View full text Add to dashboard Cite

Defaunation, invasive species and forest fragmentation are considered to be the major drivers for the disruption of key ecological processes, particularly those related to plant animal-interactions such as seed dispersal and predation. The disruption of critical phases in the plant life cycle may ultimately have negative impacts on plant recruitment and the survival of plant populations. Here, for the first time we compared the seed removal and recruitment of Araucaria angustifolia, a critically endangered and relictual gymnosperm species, in multiple sites, including continuous and fragmented forest areas in the Brazilian Atlantic subtropical forest. Our sampling included seed removal experiment monitored by camera traps and surveys of A. angustifolia recruitment. We found that seed survival and recruitment were related to the density of adult A. angustifolia. Therefore the formation of large and dense groves, which is a characteristic of pristine Araucaria moist forests endangered by forest fragmentation and selective logging, may be an attempt to satiate seed predator communities. Additionally, forest fragmentation and the introduction of wild boar decreased seed survival to very low, and forest fragmentation decreased recruitment by fourfold on average. Increase protection and recuperation of Araucaria moist forests and the eradication of the invasive wild boar where possible are necessary measures for increasing seed survival rates and the recruitment of this relictual conifer.

show abstract

“…In the larger Iguaçu National Park, also in Brazil’s Atlantic Forest, and adjacent northern Misiones province in Argentina, WLPs ceased to be detected around 1995. Years of surveys confirmed their absence until several individuals were detected with camera traps in 2016, likely immigrating from nearby forested areas in Argentina [ 39 ]. In Turvo State Park (Rio Grande do Sul State, Brazil), WLPs ceased to be detected in 1980 and have not been seen since then ( S2 Table ).…”

Section: Resultsmentioning

confidence: 99%

Large-scale population disappearances and cycling in the white-lipped peccary, a tropical forest mammal

Fragoso

Antunes²,

Silvius³

et al. 2022

PLoS ONE

View full text Add to dashboard Cite

Many vertebrate species undergo population fluctuations that may be random or regularly cyclic in nature. Vertebrate population cycles in northern latitudes are driven by both endogenous and exogenous factors. Suggested causes of mysterious disappearances documented for populations of the Neotropical, herd-forming, white-lipped peccary (Tayassu pecari, henceforth “WLP”) include large-scale movements, overhunting, extreme floods, or disease outbreaks. By analyzing 43 disappearance events across the Neotropics and 88 years of commercial and subsistence harvest data for the Amazon, we show that WLP disappearances are widespread and occur regularly and at large spatiotemporal scales throughout the species’ range. We present evidence that the disappearances represent 7–12-year troughs in 20–30-year WLP population cycles occurring synchronously at regional and perhaps continent-wide spatial scales as large as 10,000–5 million km2. This may represent the first documented case of natural population cyclicity in a Neotropical mammal. Because WLP populations often increase dramatically prior to a disappearance, we posit that their population cycles result from over-compensatory, density-dependent mortality. Our data also suggest that the increase phase of a WLP cycle is partly dependent on recolonization from proximal, unfragmented and undisturbed forests. This highlights the importance of very large, continuous natural areas that enable source-sink population dynamics and ensure re-colonization and local population persistence in time and space.

show abstract

White-lipped peccaries are recorded at Iguaçu National Park after 20 years

Cited by 5 publications

References 21 publications

Mysterious disappearances of a large mammal in Neotropical forests

Mysterious disappearances of a large mammal in Neotropical forests

Forest fragmentation and selective logging affect the seed survival and recruitment of a relictual conifer

Large-scale population disappearances and cycling in the white-lipped peccary, a tropical forest mammal

Contact Info

Product

Resources

About