Predator-prey interaction between two threatened species in a Brazilian hotspot

Canale, Gustavo Rodrigues; Bernardo, Christine Steiner São

doi:10.1590/1676-0611-bn-2015-0059

Cited by 11 publications

(4 citation statements)

References 26 publications

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“…High predation pressure is a proximate factor threatening the survival of endangered prey species, especially in environments with altered landscapes (Schneider, 2001 ), with significant conservation implications. When both predators and prey are threatened species, it is important to take their interactions into consideration in conservation planning (Canale & Bernardo, 2016 ). At the same time, monitoring anthropogenic pressure that can affect predator–prey dynamics, such as hunting from humans and dogs, also needs to be considered a high priority.…”

Section: Discussionmentioning

confidence: 99%

Response of diademed sifaka (Propithecus diadema) to fosa (Cryptoprocta ferox) predation in the Betampona Strict Nature Reserve, Madagascar

Bonadonna,

Ramilijaona,

Raharivololona

et al. 2024

Ecology and Evolution

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Large‐bodied mammals living in fragmented habitats are at higher risk of extinction, and such risk can be influenced by ecological factors such as predator–prey system dynamics. These dynamics can be particularly complex for conservation management when one endangered species preys on another endangered species in an isolated or poor‐quality habitat. Here we describe predation events observed over 19 months that involved two threatened species: the largest carnivore in Madagascar, the fosa (Cryptoprocta ferox), and three groups of diademed sifaka (Propithecus diadema) in the Betampona Strict Nature Reserve. This site is a 22 km2 low‐altitude rainforest that is surrounded by agricultural land and isolated from larger forest corridors. We aim to (1) assess the behavioral changes of P. diadema in response to fosa attacks and identify any antipredator strategies that they adopted, and (2) quantify the frequency of fosa attacks and the predation impact on the sifaka population. We report five direct observations of fosa predation attempts (one successful), the discovery of a dead sifaka with evidence of fosa predation, and the disappearance of three individuals. We describe the observed attacks and compare the sifaka activity budgets and movement patterns before and after the events. To escape the predator, sifakas fled short distances, hid, and remained vigilant. The impact of predation, combined with low reproductive rates and potentially high inbreeding of this isolated diademed sifaka population, could affect the survival of this species in Betampona. Given the compounding effects of habitat isolation and high hunting pressure, community‐specific conservation strategies should incorporate predator–prey dynamics via longitudinal monitoring of predator and prey population densities and quantifying the predation pressure between them.

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Section: Discussionmentioning

confidence: 99%

Response of diademed sifaka (Propithecus diadema) to fosa (Cryptoprocta ferox) predation in the Betampona Strict Nature Reserve, Madagascar

Bonadonna,

Ramilijaona,

Raharivololona

et al. 2024

Ecology and Evolution

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“…Complex management scenarios arise when species recovery results in negative interactions with other species of value, whether that reflects a trophic role in the ecosystem, conservation status, community connection or economic opportunity (Marshall et al, 2016). For example between killer whales, sea otters and salmon (Estes et al, 1998;Williams et al, 2011); New Zealand sea lions and yellow-eyed penguins (Lalas et al, 2007); wolves and caribou (Hervieux et al, 2014); jaguar and marine turtles (Verıśsimo et al, 2012); and, between Critically Endangered yellow-breasted capuchin monkeys and Endangered red-billed curassow (Canale and Bernardo, 2016). The interactions are natural but present a need for accurate information on natural predation levels and impacts to prey (Hervieux et al, 2014) to avoid unjustified persecution of the predator (Granquist et al, 2018), and for effective management of all species concerned (Marshall et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Quantifying wildlife conflicts with metabarcoding and traditional dietary analyses: applied to seabird predation by long-nosed fur seals

Hardy,

Berry,

Bunce

et al. 2024

Front. Mar. Sci.

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Wildlife conflicts require robust quantitative data on incidence and impacts, particularly among species of conservation and cultural concern. We apply a multi-assay framework to quantify predation in a southeastern Australian scenario where complex management implications and calls for predator culling have grown despite a paucity of data on seabird predation by recovering populations of long-nosed fur seals (Arctocephalus forsteri). We apply two ecological surveillance techniques to analyze this predator’s diet – traditional morphometric (prey hard-part) and environmental DNA metabarcoding (genetic) analyses using an avian specific primer for the 12S ribosomal RNA (rRNA) gene – to provide managers with estimated predation incidence, number of seabird species impacted and inter-prey species relative importance to the predator. DNA metabarcoding identified additional seabird taxa and provided relative quantitative information where multiple prey species occur within a sample; while parallel use of both genetic and hard-part analyses revealed a greater diversity of taxa than either method alone. Using data from both assays, the estimated frequency of occurrence of predation on seabirds by long-nosed fur seals ranged from 9.1–29.3% of samples and included up to 6 detected prey species. The most common seabird prey was the culturally valued little penguin (Eudyptula minor) that occurred in 6.1–25.3% of samples, higher than previously reported from traditional morphological assays alone. We then explored DNA haplotype diversity for little penguin genetic data, as a species of conservation concern, to provide a preliminary estimate of the number of individuals consumed. Polymorphism analysis of consumed little penguin DNA identified five distinct mitochondrial haplotypes – representing a minimum of 16 individual penguins consumed across 10 fur seal scat samples. We recommend rapid uptake and development of cost-effective genetic techniques and broader spatiotemporal sampling of fur seal diets to further quantify predation and hotspots of concern for wildlife conflict management.

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“…According to research by Resende et al (2003) predation of vertebrates by monkeys generally occurs when there is a scarcity of food or as the result of intraspecific social learning. Capuchin monkeys have been recorded feeding on a wide variety of vertebrates including frogs (Izawa, 1978), lizards (Canale et al, 2013), birds (Canale and Bernardo, 2016;Rose et al, 2003), small mammals (Milano et al, 2009;Palmeira and Pianca 2012;Resende et al, 2003;Rose et al, 2003) and even other species of monkeys (Albuquerque et al, 2014;Costa et al, 2020;Sampaio and Ferrari, 2005). The predation of vertebrates by capuchin monkeys is attributed to males when there is a shortage of food and/or because of intraspecific social learning (Júnior et al, 2020;Resende et al, 2003).…”

mentioning

confidence: 99%

Consumption of <i>Melopsittacus undulatus</i> (Shaw, 1805) (Psittaciformes, Psittacidae) by <i>Sapajus cay</i> Illiger, 1815 (Primates, Cebidae) in Midwest region of Brazil

Peixoto-Couto

Santos²,

Dias-Silva

2021

Actual. Biol.

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The interaction between native and exotic species can cause changes both in the food-chain and in aspects of competition for trophic resources, such as predation. Predatory events are common in nature, but difficult and usually recorded opportunistically. Here we present the first report of trophic interaction involving a species of exotic bird (Melopsittacus undulatus) and a species of native primate (Sapajus cay). Capuchin monkeys have already been recorded feeding on a wide variety of vertebrates, including frogs, lizards, birds, mammals, and even other species of primates. Although the record of the non-native M. undulatus in the state of Mato Grosso do Sul indicates a possible domestic escape, the record of predation may represent a beneficial trophic interaction for the ecosystem, preventing M. undulatus from becoming an invasive alien species. Studies are needed to assess what risks are posed by domestic species being preyed upon by native species.

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Predator-prey interaction between two threatened species in a Brazilian hotspot

Cited by 11 publications

References 26 publications

Response of diademed sifaka (Propithecus diadema) to fosa (Cryptoprocta ferox) predation in the Betampona Strict Nature Reserve, Madagascar

Response of diademed sifaka (Propithecus diadema) to fosa (Cryptoprocta ferox) predation in the Betampona Strict Nature Reserve, Madagascar

Quantifying wildlife conflicts with metabarcoding and traditional dietary analyses: applied to seabird predation by long-nosed fur seals

Consumption of <i>Melopsittacus undulatus</i> (Shaw, 1805) (Psittaciformes, Psittacidae) by <i>Sapajus cay</i> Illiger, 1815 (Primates, Cebidae) in Midwest region of Brazil

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