Terrestrial mammal feces: a morphometric summary and description

Chame, Márcia

doi:10.1590/s0074-02762003000900014

Cited by 259 publications

(198 citation statements)

References 40 publications

(27 reference statements)

Supporting

Mentioning

167

Contrasting

Unclassified

Order By: Relevance

“…10,no. 1 ser melhorada para níveis mais satisfatórios se o exame tricológico for complementado com observações de campo como rastros ou pegadas, microhábitat no local de coleta das fezes e morfologia fecal (Becker & Dalponte 1999, Chame 2003, embora também existam críticas à acurácia destas abordagens de campo (Miotto et al 2007). Para grandes números de amostras, a tricologia microscópica pode servir ainda como ferramenta de triagem para identificar generalidades taxonômicas dos pêlos estudados, enquanto técnicas biomoleculares podem ser aplicadas em uma segunda etapa para identificar com maior acurácia as espécies envolvidas.…”

Section: Discussionunclassified

Microestrutura de pêlos-guarda de felídeos Brasileiros: considerações para a identificação de espécies

2010

View full text Add to dashboard Cite

VANSTREELS, R.E.T., RAMALHO, F.P. &ADANIA, C.H. Guard-hair microstructure of Brazilian felids: considerations for species identification. Biota Neotrop.10(1): http://www.biotaneotropica.org.br/v10n1/en/ abstract?article+bn00910012010. Abstract:The analysis of cuticle and medulla hair microstructure is a simple and inexpensive technique to identify mammal species for a variety of applications. We studied the guard-hairs of 66 individuals of eight felid species occurring in Brazil (Leopardus colocolo, L.geoffroyi, L.pardalis, L.tigrinus, L.wiedii, Panthera onca, Puma concolor, Puma yagouaroundi), through hair samples collected from anesthetized zoo animals. The microstructure of the guard-hairs was analyzed and described through cuticle impressions and medulla preparations; a blind test was conducted to evaluate the accuracy of species identification. Although distinctive morphological characters could be identified for each species, the subtlety of these characters and the overlap of features among species resulted in a relatively poor accuracy (75%). The identification of pairs or trios of species whose hair has similar morphologies (Group A: L. pardalis, L. tigrinus, L. wiedii; Group B: L. colocolo, L. geoffroyi, P. yagouaroundi; Group C: P. concolor, P. onca) significantly improved accuracy (91%). The identification of Brazilian felids through the microstructure of their hair is challenging and requires careful examination of subtle features, and should be complemented by more accurate techniques and/or be limited mostly to applications where high accuracy is not essential or where a broader taxonomic scale is being evaluated. Keywords: Brazil, Felidae, guard-hair, tricology. VANSTREELS, R.E.T., RAMALHO, F.P. & ADANIA, C.H. Microestrutura de pêlos-guarda de felídeos brasileiros: considerações para a identificação de espécies. Biota Neotrop.10(1): http://www.biotaneotropica.org.br/v10n1/ en/abstract?article+bn00910012010.Resumo: O exame da microestrutura da cutícula e medula dos pêlos é uma técnica simples e de baixo custo para identificar espécies de mamíferos para uma variedade de aplicações. Foram estudados pêlos-guarda de 66 indivíduos de oito espécies de felídeos brasileiros (Leopardus colocolo, L.geoffroyi, L.pardalis, L.tigrinus, L.wiedii, Panthera onca, Puma concolor, Puma yagouaroundi), através de amostras colhidas de animais anestesiados em zoológicos. A microestrutura dos pêlos-guarda foi analisada e descrita através de impressões cuticulares e preparações medulares, e posteriormente foi feito um teste cego para avaliar a acurácia da identificação específica. Embora tenham sido encontrados caracteres morfológicos distintos para cada espécie, a sutileza destes caracteres e sua sobreposição entre as diferentes espécies resultaram em uma acurácia relativamente baixa (75%). A identificação de pares ou trios de espécies cujos pêlos têm morfologia mais semelhante (Grupo A: L. pardalis, L. tigrinus, L. wiedii; Grupo B: L. colocolo, L. geoffroyi, P. yagouaroundi; Grupo C: P. concolor, P. onca) elevou a acu...

show abstract

Section: Discussionunclassified

Microestrutura de pêlos-guarda de felídeos Brasileiros: considerações para a identificação de espécies

2010

View full text Add to dashboard Cite

show abstract

“…Jackal scats were distinguished from those of other carnivores, including domestic dogs, foxes, civets, and jungle cats, by their characteristic size, shape, and contents. The reader is referred to Chame (2003) for a description of the scats of different carnivores. This process was carried out in the same way in which coyote scats are distinguished from those of bobcats (Lynx rufus), gray foxes (Urocyon cinereoargenteus), raccoons (Procyon lotor), striped skunks (Mephitis mephitis), and domestic dogs (Neale et al 1998).…”

Section: Diet Analysismentioning

confidence: 99%

Daytime cover, diet and space-use of golden jackals (Canis aureus) in agro-ecosystems of Bangladesh

et al. 2007

View full text Add to dashboard Cite

Golden jackals are locally common in Bangladesh despite intensive cultivation and high human densities. We studied the relative importance of seasonal flooding, rodent prey-base, and daytime cover on the occurrence of golden jackals in the two major agro-ecosystems in Bangladesh, one with annual monsoon flooding and the other without. Jackals were less common throughout the year where floodwaters occurred that would have excluded them for 1-3 months during their pup-rearing season. Diets of jackals were similar in the two agro-ecosystems. Rodents were the most common food type in scats throughout the year. The occurrence of burrowing rats in scats peaked seasonally when these rats were most concentrated in ripening cereals, suggesting that jackals are beneficial for rat control. Radiotelemetry of seven jackals in the non-flooded agro-ecosystem over an 11-month period indicated that sugarcane was the preferred type of daytime cover, despite representing only 2-4% of the area. There was a day-to-day return rate of 67% to the same 1-ha patch of cover. Evidently, sugarcane provides daytime cover for avoiding humans and for feeding on roof rats (Rattus rattus), which concentrate in this crop. Evidence suggests that breeding pairs of jackals were annual residents that defended cover (average of 37.3 ha) but not foraging areas beyond.

show abstract

“…Coprolites were inventoried and processed individually as described in Fugassa (2006). The examination consisted of the external observation of faeces (color, texture, inclusions and measurements) according to Chame (2003) and Jouy-Avantin (2003). Faecal macroscopic features and their average measurements are shown in Table I.…”

Section: Methodsmentioning

confidence: 99%

Paleoparasitological results for rodent coprolites from Santa Cruz Province, Argentina

Sardella

Fugassa

Rindel³

et al. 2010

Mem. Inst. Oswaldo Cruz

View full text Add to dashboard Cite

Terrestrial mammal feces: a morphometric summary and description

Cited by 259 publications

References 40 publications

Microestrutura de pêlos-guarda de felídeos Brasileiros: considerações para a identificação de espécies

Microestrutura de pêlos-guarda de felídeos Brasileiros: considerações para a identificação de espécies

Daytime cover, diet and space-use of golden jackals (Canis aureus) in agro-ecosystems of Bangladesh

Paleoparasitological results for rodent coprolites from Santa Cruz Province, Argentina

Contact Info

Product

Resources

About