Relationship between body mass and body length in capybaras (Hydrochoerus hydrochaeris)

Ferraz, Kátia Maria Paschoaletto Micchi de Barros; Bonach, Kelly; Verdade, Luciano Martins

doi:10.1590/s1676-06032005000100020

Cited by 19 publications

(11 citation statements)

References 7 publications

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“…Amongst the most roadkilled mammals, H. hydrochaeris is the largest and heaviest species (Ojasti 1973, Ferraz et al 2005, and can be considered of substantial risk to human safety, as also pointed out by other studies (Bueno et al 2013, Huijser et al 2013. Hydrochoerus hydrochaeris is considered a resilient species that thrives with certain level of human disturbance in the landscape (Ferraz et al 2007).…”

Section: Roadkillsmentioning

confidence: 93%

Short and Narrow Roads Cause Substantial Impacts on Wildlife

et al. 2019

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Short and narrow roads are generally overlooked when assessing road impacts on biodiversity. However, these roads bisect natural environments and may cause significant impacts on wildlife in local scale. Thus, we monitored roadkills along a short two-lane road (CPM road) in Southeastern Brazil and propose mitigation strategies to reduce wildlife mortality. We monitored roadkilled vertebrates along 5 km of CPM road from 2010 to 2016 and we also compiled data from previous studies along the same road. We conducted a hotspot analysis to identify CPM road areas with significant roadkill aggregation. We recorded 77 roadkilled vertebrates from 14 taxonomic groups along the CPM road. Mammals were the most frequently recorded group (91% of roadkills), which represented 56% of all medium-and large-sized mammal species known to occur in the study area. We identified three roadkill hotspots along the CPM road. Two of them were located at two stream crossings, where the road cut across the associated riparian forests, and the other was at a road section with water drainage from a pond, also connected to a riparian forest. These riparian forests are part of the remaining natural habitat that provides connectivity between the forest remnants in the landscape, and therefore, for wildlife. Our results showed that even short and narrow roads can have considerable roadkill, which may have severe effects for wildlife on a local scale. The results stress the need to carefully look at these types of roads and propose measures to reduce impacts. We propose the creation of safe crossing opportunities in the hotspot zones combined with wildlife fencing to keep the animals off the road and guide them towards the safe crossing opportunities.

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Section: Roadkillsmentioning

confidence: 93%

Short and Narrow Roads Cause Substantial Impacts on Wildlife

et al. 2019

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“…Se propone en este trabajo que el roedor fósil estudiado pudo, teniendo en cuenta el valor de la media aritmética calculada y la estimación por escalamiento, haber alcanzado tanto como tres veces la masa corporal de un adulto actual de Hydrochoerus hydrochaeris [65.5 kg según Ojasti (1973) para una hembra de Venezuela; 81.0 kg según Ferraz et al (2005) para una hembra de Brasil].…”

Section: Discusión Y Conclusiónunclassified

“…Este valor representa la mitad del máximo propuesto en este estudio para el ejemplar analizado (~ 200 kg) y es próximo a los registros más altos para los capibaras actuales los cuales se acercan a 70 kg-80 kg (Mones & Ojasti, 1986;Ferraz et al, 2005); según Mones (1973), para un ejemplar hembra de Brasil, se registró 91 kg. Pero por otra parte Fariña et al (2013) afi rman que ese género extinto fue por lo menos el doble de grande que el carpincho actual alcanzando alrededor de 150 kg, lo que está más de acuerdo a los resultados de este trabajo.…”

Section: Especie Masa (Kg) Referenciaunclassified

Estimación de la masa corporal de un ejemplar Cuaternario del carpincho extinto Neochoerus a través de medidas cráneo-dentales

Ghizzoni¹

2014

Rev. bras. paleontol.

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-BODY MASS ESTIMATION OF A QUATERNARY SPECIMEN OF THE EXTINCT CAPYBARANEOCHOERUS THROUGH CRANIODENTAL MEASUREMENTS. An estimated body mass of a specimen of Neochoerus Hay cf. N. aesopi (Leidy) (Mammalia, Rodentia, Hydrochoeridae) from the Quaternary of Uruguay was made based on craniodental measurements. Regression equations used to estimate the mass of other fossil rodents were applied. A value reference was also calculated by scaling of a specimen of the extant Hydrochoerus hydrochaeris (Linnaeus). In this study it is estimated that this extinct rodent may have reached a three times bigger mass than an extant capybara.Key words: Neochoerus, capybara, rodent, body mass, regression.RESUMO -Com base em medidas crânio-dentárias foi realizada uma estimativa da massa corporal de um espécime de Neochoerus Hay cf. N. aesopi (Leidy) (Mammalia, Rodentia, Hydrochoeridae) do Quaternário do Uruguai. Foram aplicadas equações de regressão que têm sido empregadas para a estimativa de massa de outros roedores fósseis. Além disso, foi calculado um valor de referência pelo escalonamento de um espécime atual de Hydrochoerus hydrochaeris (Linnaeus). No presente estudo se estima que este roedor extinto possa ter alcançado uma massa corporal três vezes maior do que a da capivara atual. Palavras-chave:Neochoerus, capivara, roedor, massa corporal, regressão.

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“…Na figura 1.1, é possível observar a distribuição da espécie. As capivaras são os maiores roedores contemporâneos e o tamanho corporal da espécie varia de acordo com a distribuição geográfica (FERRAZ et al, 2005;.…”

Section: História Natural Das Capivarasunclassified

Ecologia comportamental de capivaras Hydrochoerus hydrochaeris em ambientes antrópicos

Nievas¹

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Agradeço primeiramente à minha querida orientadora, Profa. Patrícia Monticelli (a Pati, carinhosamente), que sempre me apoiou e confiou que faríamos juntas, um belo trabalho. Sua força, feminismo e apoio incondicional foram essenciais para que chegássemos até aqui. Ao meu co-orientador, Prof. Danilo Boscolo, pelos ensinamentos, trocas de ideias, por ter trazido a abordagem de Ecologia de Paisagens ao nosso trabalho, tornando-o muito mais interessante. Ao grupo EBAC pela convivência, risadas e carinho. De alguma forma, em momentos diversos, todos contribuíram para o desenvolvimento deste trabalho e, por isso, sou eternamente

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Relationship between body mass and body length in capybaras (Hydrochoerus hydrochaeris)

Cited by 19 publications

References 7 publications

Short and Narrow Roads Cause Substantial Impacts on Wildlife

Short and Narrow Roads Cause Substantial Impacts on Wildlife

Estimación de la masa corporal de un ejemplar Cuaternario del carpincho extinto Neochoerus a través de medidas cráneo-dentales

Ecologia comportamental de capivaras Hydrochoerus hydrochaeris em ambientes antrópicos

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