Predators of bird nests in the Neotropics: a review

Menezes, João C. T.; Marini, Miguel Ângelo

doi:10.1111/jofo.12203

Cited by 82 publications

(55 citation statements)

References 44 publications

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“…Yet, this might be underestimated because the toucans brought unseen food in the craw. Toucans in general seem to be representative predators of eggs and nestlings (see Menezes & Marini 2017 for review), which would be related to the timing of the toucans' and passerines' breeding season, since young Ramphastids usually eat protein sources during their development even when their diet is mostly frugivorous (Brehm 1969, Remsen et al 1993.…”

Section: Discussionmentioning

confidence: 99%

Additional information on reproductive behavior of the Red-breasted Toucan, Ramphastos dicolorus (Aves: Piciformes: Ramphastidae)

Perrella

Guida²

2019

Biota Neotrop.

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Ramphastidae is Family of secondary cavity-nesting birds that is endemic to the Neotropical region. Here we provide a comprehensive literature review of nest measurements, and new information on characteristics of the nest cavity, parental nest attendance, incubation and nestling period of the Red-breasted Toucan, Ramphastos dicolorus. We also add information on the origin of the seeds found inside toucan nests and propose a potential function for them. Eight nests were studied in three cavities during six breeding seasons at Parque Estadual das Fontes do Ipiranga, São Paulo, and at a private allotment in Ibiúna, southeastern Brazil. The reproductive activities of the birds were observed from September to February. In one cavity, we found the first record of a Meliponini bee hive (Scaptotrigona bipunctata) co-existing with a toucan nest. At the beginning of the nesting season, the parents regurgitate seeds on the floor of the cavity, covering it with them. This preparation plays a role in nest sanitation, once the seeds act as a substrate for the feces facilitating the process of carrying them off the nest by the female. The incubation and nestling periods lasted 17.2 ± 1.2 and 43 ± 5.4 days, respectively, and both parents shared egg incubation, nestling, brooding and provisioning, but only the female performed nest sanitation. This differs from published observations on other species of the group, suggesting that the participation of each sex in nest attendance may not be the same for all ramphastids. Additionally, our observations suggest that selecting anthropic locations for nesting can negatively influence toucan nest success. Informações adicionais sobre o comportamento reprodutivo do tucano-de-bico-verde,Ramphastos dicolorus (Aves: Piciformes: Ramphastidae) Resumo: Ramphastidae compreende uma Família de aves que nidificam em cavidades, são endêmicas da região Neotropical, mas possuem os aspectos relacionados à sua biologia reprodutiva ainda pouco conhecidos. No presente estudo, nós fornecemos uma revisão detalhada da literatura acerca de medidas de ninhos, características das cavidades, cuidado parental e períodos de incubação e permanência do tucano-de-bico-verde Ramphastos dicolorus. Nós também descrevemos e propomos uma possível função para as sementes encontradas dentro dos ninhos dessa espécie. Foram estudados oito ninhos, em três diferentes cavidades durante seis temporadas reprodutivas no Parque Estadual das Fontes do Ipiranga, São Paulo, e em um loteamento particular em Ibiúna, ambos no sudeste do Brasil. As atividades reprodutivas foram observadas de Setembro a Fevereiro. Em uma das cavidades foi registrada a coexistência entre uma colmeia de abelhas Meliponini Scaptotrigona bipunctata e um ninho de tucanos, sendo este o primeiro registro desse tipo de interação para Ramphastidae. No início do período de nidificação os parentais regurgitavam sementes no fundo da cavidade, cobrindo-o, e nossas observações mostram que essa preparação desempenha o papel de facilitar na limpeza do ninho, uma vez que a...

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Section: Discussionmentioning

confidence: 99%

Additional information on reproductive behavior of the Red-breasted Toucan, Ramphastos dicolorus (Aves: Piciformes: Ramphastidae)

Perrella

Guida²

2019

Biota Neotrop.

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“…Some studies in open habitat types have shown that the densities of many species decrease next to roads (Benítez-López et al, 2010;Clark & Karr, 1979;Fahrig & Rytwinski, 2009;Illner, 1992), which can be a response to noise (Pescador & Peris, 2007). In addition, road avoidance by forest birds and mammals can extend hundreds of meters from busy roads (Benítez-López et al, 2010;Forman & Deblinger, 2000) and bird and mammals species are important nest predators in the neotropics (Menezes & Marini, 2017). Our results, however, suggest an edgeinterior space use gradient by predators that extend at least 25 m into the forest.…”

Section: Discussionmentioning

confidence: 99%

Positive roadside edge effects on artificial nest survival in a lowland Atlantic Forest

Silva

Diniz

Banhos

et al. 2019

Ecology and Evolution

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Road construction is considered to be one of the primary causes of forest fragmentation, and little is known about how roads affect bird reproductive success. The objective of this study was to assess the survival rate of artificial nests along an edge associated with a highway and in the interior of a tabuleiro forest. The study was performed at the Sooretama Biological Reserve, on the margins of federal highway BR‐101, between September and October 2015. A total of 168 artificial nests with a Common quail ( Coturnix coturnix ) egg in each nest were placed along six sampling transects, at distances of 2, 25, 50, 100, 200, 400, and 800 m from the highway toward the forest interior. We used logistic regression and estimated daily survival rate (DSR) using the “Nest Survival” function in the program MARK to estimate artificial nest survival and assessed the effect of the distance from the highway. The artificial nest survival rate was significantly higher on the highway margins than at other distances. The results show that artificial nests located up to 25 m from the highway have a greater success probability (over 95%) and a significant decrease in success probability more than 50 m from the highway. Although we cannot rule out other nonroad‐specific edge effects on artificial nest predation, our results suggest that the impacts of the highway (e.g., noise, vibration, visual stimuli) cause predators to avoid the road's surroundings (up to 25 m into the forest) when selecting their feeding sites, which partially supports the predation release hypothesis.

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“…In the neotropics, several studies have revealed that capuchins, often considered as the New World counterparts of macaques, are significant bird nest predators (Ferreira et al, ; Rose, , ). After snakes, these platyrrhines are the second most important bird nest predators in Central and South America (Menezes & Marini, ), and stand out as important nest predators among primates. On small islands in Lago Guri (Venezuela), artificial nest predation rates by wedge‐capped capuchins ( Cebus olivaceus ) reached 100% (Terborgh, Lopez, & José, ).…”

Section: Discussionmentioning

confidence: 99%

Foraging strategies underlying bird egg predation by macaques: A study using artificial nests

Kaisin

Gazagne

Savini³

et al. 2018

American J Primatol

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Bird egg predation is widespread in non-human primates. Although nest predation is often described as opportunistic, little is known about foraging strategies and nest detection in primates. Since it is the prevalent cause of nest failure in the tropics, birds select nest sites within specific microhabitats and use different nest types to increase nesting success. Identifying the nests targeted by the northern pigtailed macaques (Macaca leonina), an omnivorous cercopithecine species, and known nest predator, will shine light on nest foraging strategies in primates. The aim of this research was to reveal if nest predation is a selective or opportunistic feeding behavior. We studied, using artificial nests and camera traps, the influence of nest type (open-cup vs. cavity), microhabitat (i.e., understory density, canopy cover, canopy height, ground cover, and presence vs. absence of thorns and lianas), and nest height, on nest predation by a troop of northern pigtailed macaques in the Sakaerat Biosphere Reserve (Thailand), a degraded environment. In our study, macaque predation on artificial nests was high; out of the 200 nests that were set up, 112 were plundered by macaques. Although predation rates decreased with nest height, nest type, and microhabitat had no significant effect on predation by macaques. Nest detectability and accessibility did not affect predation rates. Macaques actively searched for nests in different microhabitats, suggesting that nest predation by this primate might be considered a selective feeding behavior in this degraded habitat. Consequently, nest predation by this primate might have important conservation implications on the population dynamics of forest-dwelling bird species.Behavior observation methods, such as instantaneous scan sampling, may underestimate nest predation by primates, a furtive and cryptic behavior. K E Y W O R D S camera traps, feeding ecology, Macaca leonina, nest predation, Sakaerat Biosphere Reserve, Thailand

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Predators of bird nests in the Neotropics: a review

Cited by 82 publications

References 44 publications

Additional information on reproductive behavior of the Red-breasted Toucan, Ramphastos dicolorus (Aves: Piciformes: Ramphastidae)

Additional information on reproductive behavior of the Red-breasted Toucan, Ramphastos dicolorus (Aves: Piciformes: Ramphastidae)

Positive roadside edge effects on artificial nest survival in a lowland Atlantic Forest

Foraging strategies underlying bird egg predation by macaques: A study using artificial nests

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