Power lines and howler monkey conservation in Porto Alegre, Rio Grande do Sul, Brazil

Lokschin, Luisa Xavier; Printes, Rodrigo Cambará; Cabral, Juliane Nunes Hallal; Buss, Gerson

doi:10.1896/044.014.0206

Cited by 67 publications

(69 citation statements)

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“…These are dirty and paved roads with one or two narrow lanes without central median. The installation of rope overpasses was carried out together with the insulation of electric cables where the majority of accidents occurred (Lokschin et al 2007 Cabrera, 1940), a species vulnerable to extinction in the Rio Grande do Sul state (Marques 2003), often electrocuted, road-killed, and attacked by dogs in the Porto Alegre municipality.…”

Section: The Canopy Bridgesmentioning

confidence: 99%

“…Neste artigo, apresentamos os resultados do monitoramento do uso de seis pontes de corda, realizado durante 15 meses, entre agosto de 2008 e outubro de 2009, nas imediações da Reserva Biológica do Lami José Lutzenberger, em Porto Alegre, Brasil. As pontes de dossel foram instaladas pelo Núcleo de Extensão Macacos Urbanos em locais com registros de atropelamentos e choques elétricos de bugios-ruivos (Alouatta guariba clamitans Cabrera, 1940). Instalamos armadilhas fotográficas em cada ponte e selecionamos moradores locais para registrarem seu uso.…”

Section: Introductionunclassified

“…Instalamos armadilhas fotográficas em cada ponte e selecionamos moradores locais para registrarem seu uso. Três espécies foram registradas usando as pontes de corda: o bugio-ruivo (Alouatta guariba clamitans Cabrera, 1940), o gambá-de-orelha-branca (Didelphis albiventris Lund, 1840) e o ouriço-cacheiro (Sphiggurus villosus Cuvier, 1823). As pontes de corda mais usadas por maior número de espécies são aquelas situadas nas áreas de maior cobertura florestal e menor área urbanizada, em relação às pontes menos usadas pelas espécies.…”

Section: Introductionunclassified

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Canopy bridges as road overpasses for wildlife in urban fragmented landscapes

et al. 2013

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Abstract:The effects of habitat fragmentation and deforestation are exacerbated by some elements, such as roads and power lines, which may become filters or barriers to wildlife movements. In order to mitigate mortality and restore connectivity, wildlife passages are being constructed as linear corridors. The installation of these mitigation measures must be followed by systematic monitoring, in order to evaluate their use and effectiveness, to assist in their management, and to convince stakeholders of their value. In this paper we present the results of a monitoring study of the use of rope overpasses developed near a protected area in Porto Alegre, southern Brazil. The canopy bridges were installed by the Urban Monkeys Program in places where electric hazards and road-kills of brown howler monkeys (Alouatta guariba clamitans Cabrera, 1940) were recorded. Camera traps were installed at each bridge, and local people were selected and trained to monitor overpass use over 15 months, from August 2008 to October 2009. Three species were recorded using canopy bridges: brown howler monkey (Alouatta guariba clamitans Cabrera, 1940), white-eared opossum (Didelphis albiventris Lund, 1840) and porcupine (Sphiggurus villosus Cuvier, 1823). Rope bridges with the highest number of species recorded had more forest cover and lower urban area around them than overpasses little used. Our results indicate that overpasses, in Porto Alegre, work as a linear corridor between forest remnants, although the outcomes for individual survival, group persistence, population demography or gene flow have not been measured. Furthermore, canopy bridges may be important to mitigate the impact of roads and power lines on wildlife, but electric cables also need to be completely isolated when present, to warrant animals' physical integrity. Resumo: Os efeitos do desmatamento e da fragmentação de hábitats são exacerbados por elementos como rodovias e redes elétricas, que podem atuar como filtros ou barreiras aos movimentos da vida silvestre. Com o objetivo de mitigar a mortalidade e restaurar a conectividade, passagens de fauna têm sido construídas como corredores lineares. A instalação dessas estruturas deve ser seguida de monitoramento sistemático, visando à avaliação de seu uso e efetividade e a geração de informações para seu manejo e para convencer os tomadores de decisão sobre seu valor. Neste artigo, apresentamos os resultados do monitoramento do uso de seis pontes de corda, realizado durante 15 meses, entre agosto de 2008 e outubro de 2009, nas imediações da Reserva Biológica do Lami José Lutzenberger, em Porto Alegre, Brasil. As pontes de dossel foram instaladas pelo Núcleo de Extensão Macacos Urbanos em locais com registros de atropelamentos e choques elétricos de bugios-ruivos (Alouatta guariba clamitans Cabrera, 1940). Instalamos armadilhas fotográficas em cada ponte e selecionamos moradores locais para registrarem seu uso. Três espécies foram registradas usando as pontes de corda: o bugio-ruivo (Alouatta guariba clamitans Cabrera, 194...

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Section: The Canopy Bridgesmentioning

confidence: 99%

Section: Introductionunclassified

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Canopy bridges as road overpasses for wildlife in urban fragmented landscapes

et al. 2013

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“…Efforts to return a few individuals of non-threatened species to the wild are not usually considered conservationist measures, nor are measures focused on individual members of endangered species (SOORAE & BAKER, 2002). Nevertheless, because howlers are considered locally and regionally threatened and conflicts with humans in Porto Alegre and vicinity are frequent (PRINTES, 1999;PRINTES et al, 2010;LOKSCHIN et al, 2007), the PMU considered that it was necessary to manage individual howler monkeys.…”

Section: Programa Macacos Urbanos -A Transdisciplinary Approach To Homentioning

confidence: 99%

“…Human proximity associated with decrease in fragment size and resource availability may increase primate stress levels, with their negative impacts on social organization and vulnerability to disease. The problems dealt with by the PMU, such as electrocutions, roadkills and overparasitism (PRINTES, 1999;LOKSCHIN et al, 2007), will probably become more common, accompanying the progressive urban expansion, and their impacts should be monitored.…”

Section: Future Prospectsmentioning

confidence: 99%

Primatology in southern Brazil: a transdisciplinary approach to the conservation of the brown-howler-monkey Alouatta guariba clamitans (Primates, Atelidae)

Jerusalinsky

Teixeira

Lokschin

et al. 2010

Iheringia, Sér. Zool.

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ABSTRACT. Human interventions in natural environments are the main cause of biodiversity loss worldwide. The situation is not different in southern Brazil, home of five primate species. Although some earlier studies exist, studies on the primates of this region began to be consistently carried out in the 1980s and have continued since then. In addition to important initiatives to study and protect the highly endangered Leontopithecus caissara Lorrini & Persson, 1990 and Brachyteles arachnoides E. Geoffroy, 1806, other species, including locally threatened ones, have been the focus of research, management, and protection initiatives. Since 1993, the urban monkeys program (PMU, Programa Macacos Urbanos) has surveyed the distribution and assessed threats to populations of Alouatta guariba clamitans (Cabrera, 1940) in Porto Alegre and vicinity. PMU has developed conservation strategies on four fronts: (1) scientific research on biology and ecology, providing basic knowledge to support all other activities of the group; (2) conservation education, which emphasizes educational presentations and long-term projects in schools near howler populations, based on the flagship species approach; (3) management, analyzing conflicts involving howlers and human communities, focusing on mitigating these problems and on appropriate relocation of injured or at-risk individuals; and finally, (4) Public Policies aimed at reducing and/or preventing the impact of urban expansion, contributing to create protected areas and to strengthen environmental laws. These different approaches have contributed to protect howler monkey populations over the short term, indicating that working collectively and acting on diversified and interrelated fronts are essential to achieve conservation goals. The synergistic results of these approaches and their relationship to the prospects for primatology in southern Brazil are presented in this review. KEYWORDS.Conservation biology, environmental education, brown howler monkey, public policies, urban monkeys program.RESUMO. Primatologia no sul do Brasil: uma abordagem transdisciplinar para a conservação do bugio-ruivo Alouatta guariba clamitans (Primates, Atelidae) na região de Porto Alegre, Brasil. Intervenções humanas nos ambientes naturais são a principal causa da perda de biodiversidade global. Essa situação não é diferente no sul do Brasil, onde vivem cinco espécies nativas de primatas. Embora existam algumas pesquisas anteriores, estudos sobre primatas nessa região começaram a ser desenvolvidos consistentemente no início da década de 1980 e continuaram sendo produzidos desde então. Além de importante iniciativas para pesquisar e conservar as espécies altamente ameaçadas Leontopithecus caissara Lorrini & Persson, 1990 e Brachyteles arachnoides E. Geoffroy, 1806, outras espécies, incluindo algumas localmente ameaçadas, têm sido foco de pesquisas, manejo, e iniciativas de conservação. Desde 1993, o Programa Macacos Urbanos (PMU) tem pesquisado a distribuição e avaliado as ameaças às populações de Alou...

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Surviving in the urban–rural interface: Feeding and ranging behavior of brown howlers (Alouatta guariba clamitans) in an urban fragment in southern Brazil

Corrêa

Chaves

Printes

et al. 2018

American J Primatol

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Wild primates that live in urban areas face extreme threats that are less frequent in nonurban fragments, such as the presence of dangerous matrix elements (e.g., roads, power lines, buildings, and a high density of domestic dogs near food patches), that could influence their movements, feeding behavior, and survival. However, the scarcity of studies addressing this issue hinders our understanding of the behavioral adjustments that favor the survival of primates in urban areas. For 12 months, we studied a six-individual group of brown howlers (Alouatta guariba clamitans) in an urban fragment to determine (i) their diet richness and its relationships with food availability, (ii) their daily path length (DPL) and the matrix elements used during movement, and (iii) the main ecological drivers of the DPL. Sampling effort totaled 72 days, 787 hr, and 3,224 instantaneous scans. We found that the diet of brown howlers contained 35 plant species (including seven cultivated crops) belonging to 33 genera and 21 families. The consumption of fruits and young leaves was directly related to their temporal availability. The average DPL (446 m) was smaller than that reported for groups of howlers inhabiting large nonurban fragments. To move between food patches, animals used three main matrix elements: trees, power lines, and roofs. The number of plant species used during the day was the main driver of DPL. Our findings highlighted that the generalist-opportunistic diet of brown howlers and their ability to move across the anthropogenic matrix using artificial elements such as power lines, roofs, and wildlife crossings represent a remarkable part of their behavioral repertory in Lami. However, there are potential costs associated with these strategies, namely, electrocution and predation by domestic dogs. Thus, it is urgent to further investigate how these behaviors could affect the long-term survival of these animals.

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Power lines and howler monkey conservation in Porto Alegre, Rio Grande do Sul, Brazil

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 67 publications

References 7 publications

Canopy bridges as road overpasses for wildlife in urban fragmented landscapes

Canopy bridges as road overpasses for wildlife in urban fragmented landscapes

Primatology in southern Brazil: a transdisciplinary approach to the conservation of the brown-howler-monkey Alouatta guariba clamitans (Primates, Atelidae)

Surviving in the urban–rural interface: Feeding and ranging behavior of brown howlers (Alouatta guariba clamitans) in an urban fragment in southern Brazil

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