Academic Journal
Expulsion Rate of Puma Concolor (Carnivora: Felidae) in Captivity
| العنوان: | Expulsion Rate of Puma Concolor (Carnivora: Felidae) in Captivity |
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| المؤلفون: | Monroy Vilchis, Octavio, Gómez Ortiz, Yuriana, Urios, Vicente |
| المساهمون: | Universidad de Alicante. Departamento de Ciencias Ambientales y Recursos Naturales, Universidad de Alicante. Centro Iberoamericano de la Biodiversidad, Zoología de Vertebrados |
| بيانات النشر: | Mammal Society of Japan |
| سنة النشر: | 2013 |
| المجموعة: | RUA - Repositorio Institucional de la Universidad de Alicante |
| مصطلحات موضوعية: | Expulsion rate, Puma concolor, Carnivora: Felidae, Captivity, Zoología |
| الوصف: | Although the puma (Puma concolor, Linnaeus, 1771) has been studied in America, there are few studies about its abundance and density (Kelly et al. 2008; Soria-Díaz et al. 2010). There are many studies on puma’s diet, but most studies use only occurrence frequency and occurrence percentage analysis and assume that one scat has only one prey species such as mice, rabbit, or deer, making biased results (Aranda and Sánchez-Cordero 1996; Núñez et al. 2000; Monroy- Vilchis et al. 2009). Expulsion indices can improve diet estimates but are poorly document experimentally for this species due to the difficulty to obtain data from free-ranging animals (Sutherland 1996). These rates obtained from semi captive Odocoileus virginianus would be useful for subsequent application to wild individuals (Rogers 1988; Galindo-Leal et al. 1993). One study with coyotes offers the defecation and expulsion indices and their application in filed work (Monroy-Vilchis and Frieven 2006). Given the fact that the proportion of indigestible remains in the predator scats depends on the biomass and number of individuals consumed, the dietary analyses using percentage or frequency occurrence could lead to imprecise conclusions regarding the importance of certain foods (Delibes 1980; Gamberg and Atkinson 1988; Weaver 1993; Monroy-Vilchis and Frieven 2006). To determine the importance of various food items with accuracy, some researchers have examined the dry weight of indigestible residues (Johnson and Hansen 1978) and evaluated the probability of detection in scats, considering that different food are underestimated or overestimated in biomass (Floyd et al. 1978; Weaver and Hoffman 1979). Regarding the puma, there is a correction factor available for evaluation of the diet and estimates of numbers of prey organisms (Ackerman et al. 1984). It, however, is the relationship between the frequencies of food occurrence in scats and their proportion to the amount consumed. One possible solution to this dilemma is to calculate the number of scats required ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | http://dx.doi.org/10.3106/041.038.0406; Mammal Study. 2013, 38(4): 299-302. doi:10.3106/041.038.0406; 1343-4152 (Print); 1348-6160 (Online); http://hdl.handle.net/10045/42640 |
| DOI: | 10.3106/041.038.0406 |
| الاتاحة: | http://hdl.handle.net/10045/42640 https://doi.org/10.3106/041.038.0406 |
| Rights: | © The Mammal Society of Japan ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.21148301 |
| قاعدة البيانات: | BASE |
| DOI: | 10.3106/041.038.0406 |
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