Marina Duarte

Verified

Marina verified their affiliation via an institutional email.

Learn more

Verified

Marina verified their affiliation via an institutional email.

Learn more

• PhD
• University Fellow at University of Salford

BirdNET is a popular machine learning tool for automated recognition of bird sounds. Here we evaluate how BirdNET settings affect the model performance both at vocalization and species levels, using 4,225 one-minute recordings from 67 recording locations worldwide. Giving equal importance to recall and precision, a low confidence score threshold (0...

Aim The urgency for remote, reliable and scalable biodiversity monitoring amidst mounting human pressures on ecosystems has sparked worldwide interest in Passive Acoustic Monitoring (PAM), which can track life underwater and on land. However, we lack a unified methodology to report this sampling effort and a comprehensive overview of PAM coverage t...

Under the current global biodiversity crisis, there is a need for automated and non-invasive monitoring techniques that are able to gather large amounts of information cost-effectively at large scales. One such technique is passive acoustic monitoring, which is commonly coupled with automatic identification of animal species based on their sound. A...

Political responses to the COVID-19 pandemic led to changes in city soundscapes around the globe.From March to October 2020, a consortium of 261 contributors from 35 countries brought togetherby the Silent Cities project built a unique soundscape recordings collection to report on local acousticchanges in urban areas. We present this collection her...

Simple Summary In a previous study, we found that Positive Reinforcement Training promoted relaxation in wolves and dogs. Here, we investigate aspects of the trainers’ voices possibly involved in this effect. Dogs’ great interest in high-pitched, intense speech has already been reported, but whether and how wolves respond similarly/differently to v...

Simple Summary Communication is one way that animals use to obtain and defend resources, escape predators and attract sexual partners. However, this process can be disrupted by anthropogenic noise, which often differs from natural sounds in frequency, duration and intensity. This study aimed to understand whether, and how, calls emitted by black-tu...

Soundscape studies help us understand ecological processes, biodiversity distribution, anthropic influences, and even urban quality, across a wide variety of places and time periods. In this work, instead of looking for differences, we ask if there are common characteristics shared by all soundscapes. Based on our results, we propose a universal di...

Primates are affected by fluctuations in ambient temperatures, mostly through thermoregulatory costs and changes in the availability of food. In the present study, we investigate whether the ambient temperature and proxies of food availability affect the activity period of marmosets (Callithrix spp.). We predicted that: (i) at colder sites, marmose...

Males of a wide variety of vertebrates aggregate in mixed-species choruses to attract females and signal territory occupancy. It is often assumed that species within these choruses co-signal, interact and compete for the acoustic space, although few studies have tested this assumption, particularly in tropical and highly diverse environments. Using...

Anthropogenic noise, which is part of an urban soundscape, can negatively affect the behaviour of wild animals. Here we investigated how biophony (animal sounds) was affected by noise in an urban Brazilian forest fragment. Our hypothesis was that noise and biophony would differ between the border and the centre of the forest fragment (i.e., lower b...

Wildfire is a natural process in Brazilian savannas, but human activities alter fire regimes and threaten biodiversity. In this study, weused an ecoacoustics approach to assess fauna responses and recovery after wildfire in a Brazilian savanna. Six passive acoustic monitoring devices were used to record soundscapes before and after a wildfire a at...

A participatory monitoring programme of an exceptional modification of urban soundscapes during Covid-19 containment.

Football matches, as a common urban activity, produce high levels of noise due to vehicular traffic, screams, whistles, and firework displays. Fear of noise is one of the most commonly reported behavior problems in dogs (Canis familiaris); however, few studies have focused on the effects of repeated exposition to noise in these animals. Here we inv...

Anthropogenic noise is a global pollutant and several studies have identified its impact on wildlife. This research shows how the noise produced by mining affects crickets' acoustic communication. Two passive acoustic monitoring devices (SMII) were installed in a forest fragment located at 500 m from the Brucutu Mine in Brazil. Another two SMII wer...

Choruses are commonly observed phenomena in both terrestrial and aquatic environments and are the product of species vocalizing contemporaneously usually at dawn and dusk. This study analyzes the composition and temporal distribution of anuran choruses at a recently built artificial pond in Southeast Brazil. Data were collected using Passive Acoust...

Hydroelectric power plants (HPP) constitute one of the main forms of energy generation in the world, and its operation produces underwater noise through generators and turbines, which can potentially impact the aquatic fauna. Anthropogenic noise is a stressful factor and can affect behaviour, physiology and acoustic communication of many animal spe...

The breeding practices adopted and the equipment typically found in animal facilities produce sounds at frequencies within the auditory range of the mice (1 to 100 kHz), which can cause hearing and other non-hearing effects. Another aspect that could potentially affects the welfare of experimental animals would be their impaired health condition, s...

All habitats have some level of noise but anthropogenic sounds such as those produced by traffic are structurally different from natural sounds, and could cause organisms living in noisy urban areas to modify their vocal communication. We compared temporal and spectral parameters of contact calls in black tufted-ear marmosets (Callithrix penicillat...

Anthropogenic noise pollution is increasing and can constrain acoustic communication in animals. Our aim was to investigate if the acoustic parameters of loud calls and their diurnal pattern in the black-fronted titi monkey (Callicebus nigrifrons) are affected by noise produced by mining activity in a fragment of Atlantic Forest in Brazil. We insta...

Mining activity generatesnoise through explosions, traffic, machinery, alert signals, etc. Noise affects the behavior of many species that depends on acoustic communication. Our objective was to verify if the noise produced by truck traffic affects rufous-collared sparrow vocalizations. Data were collected in an Atlantic forest fragment located clo...

Anthropogenic noise is very different from natural sounds, and could cause organisms living in noisy areas to modify their vocal communication. We assessed the influence of noise on black tufted-ear marmoset acoustic communication. Spontaneously produced phee vocalizations were recorded in two areas: a noisy urban park, located in Belo Horizonte, M...

Among different approaches to exploring and describing the ecological complexity of natural environments, soundscape analyses have recently provided useful proxies for understanding and interpreting dynamic patterns and processes in a landscape. Nevertheless, the study of soundscapes remains a new field with no internationally accepted protocols. T...

A atividade mineradora é conhecida por gerar ruído proveniente de explosões, tráfego de carros e de caminhões, buzinas, sinais de alerta, entre outros. Grande parte da economia brasileira é baseada nessa atividade, e apesar de pesquisas recentes mostrarem que o ruído pode afetar a fauna, ainda não existem leis que regulamentam os níveis de pressão...

The black tufted-ear marmoset (Callithrix penicillata) is a small Neotropical primate, which lives in various types of environments from Cerrado (Brazilian savannah), Atlantic forest to urban areas. Research shows that food availability influences home range size, group size, population density and the behaviour of marmoset groups in the wild. The...

Urban wildlife, frequently, comes into contact with human city dwellers and these interactions can be viewed positively or negatively by people. In the city of Belo Horizonte (Minas Gerais, Brazil) many city parks have groups of black-tufted marmosets (Callithrix penicillata), which interact with park visitors. In this study we observed 205 separat...

Urban areas and many natural habitats are being dominated by a new selection pressure: anthropogenic noise. The ongoing expansion of urban areas, roads and airports throughout the world makes the noise almost omnipresent. Urbanization and the increase of noise levels form a major threat to living conditions in and around cities. Insight into the be...

Domestic cats are known to kill small mammals and birds, and represent a predatory threat to all small wildlife. We investigated whether a high cat density affects the choice of sleeping sites of urban marmosets (Callithrix penicillata). One group of marmosets and ≥115 domestic cats live in an 18-ha area in the Municipal Park of Belo Horizonte City...

How to house animals in captivity, so as to maximise their level of well-being, is one of the greatest practical challenges facing animal welfare scientists. Laboratory animal housing can, necessarily, be very restrictive in terms of the facilities being offered to the animal inhabitants due to experimental protocol restrictions. One method of tryi...