Food preferences of guanaco (Lama guanicoe cacsilensis) and its competence with cattle in the Calipuy National Reserve, Peru

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The objective of this research was to determine the degree of food competition between guanaco and livestock in Calipuy National Reserve. Vegetation cover (CV) was determined by a survey of vegetation and composition of diets using a micro histological technique of feces (50 guanacos, 35 cows and 25...

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Detalles Bibliográficos
Autores: Linares, Luis, Linares, Virginia, Mendoza, Gilmar, Peláez, Freddy, Rodríguez, Eric, Phum, Carlos
Formato: artículo
Fecha de Publicación:2010
Institución:Universidad Nacional de Trujillo
Repositorio:Revista UNITRU - Scientia Agropecuaria
Lenguaje:español
OAI Identifier:oai:ojs.revistas.unitru.edu.pe:article/44
Enlace del recurso:http://revistas.unitru.edu.pe/index.php/scientiaagrop/article/view/44
Nivel de acceso:acceso abierto
Materia:Food
preference
competence
guanaco
cattle
Calipuy National Reserve
Preferencia alimentaria
competencia
ganado
Reserva Nacional de Calipuy
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spelling Food preferences of guanaco (Lama guanicoe cacsilensis) and its competence with cattle in the Calipuy National Reserve, PeruPreferencias alimenticias del guanaco (Lama guanicoe cacsilensis) y su competencia con el ganado doméstico en la Reserva Nacional de Calipuy, PerúLinares, LuisLinares, VirginiaMendoza, GilmarPeláez, FreddyRodríguez, EricPhum, CarlosFoodpreferencecompetenceguanacocattleCalipuy National ReservePreferencia alimentariaguanacocompetenciaganadoReserva Nacional de CalipuyThe objective of this research was to determine the degree of food competition between guanaco and livestock in Calipuy National Reserve. Vegetation cover (CV) was determined by a survey of vegetation and composition of diets using a micro histological technique of feces (50 guanacos, 35 cows and 25 horses). The dietary overlap was determined by Horn Index (I), food preferences by Ivlev index (E) and the diet diversity by Shannon-Weaver index (D) .We found a low - moderate food competition between the guanaco and the cattle and horses. The dietary overlap was greater during the rainy season (I=0.80 and 0.88) where forage supply was high (CV=63%) and lower during the dry season (R=0.58 and 0.64) when there were shortages of food (CV=50%). The guanaco was an intermediate selective consumer. The dietary diversity of adults increased during the dry season (D=0.62, p<0.01) including up to 70% of herbs and shrubs, showing a high flexibility in food between seasons (I=0.64) and habitats (I=0.75, p<0.01), which allowed it to minimize competition with cattle and horses, which consumed mainly grasses in both seasons (>60%) and did not show the same flexibility (I=0.90, p<0.01). Chulengos and juveniles were more sensitive to seasonal variations, its consuming a lower percentage of shrubs, but had a strong preference for small herbs.El objetivo de esta investigación fue determinar el grado de competencia alimentaria entre el guanaco y el ganado doméstico en la Reserva Nacional de Calipuy. La cobertura vegetal (CV) se determinó con un censo de vegetación y la composición de las dietas mediante la técnica microhistológica de las heces (50 guanacos, 35 vacunos y 25 equinos). La sobreposición dietaria se determinó mediante el Índice de Horn (I), las preferencias alimentarias mediante el índice de Ivlev (E), y la diversidad de la dieta con índice de Shannon-Weaver (D). Se encontró una baja-moderada competencia alimentaria entre el guanaco y el ganado bovino y equino. La sobreposición dietaria fue mayor durante la época lluviosa (I =0. 80 y 0.88) en que la oferta de forraje fue alta (CV= 63%); y menor durante la época seca (I=0.58 y 0.64) en que hubo escasez de alimento (CV=50%). El guanaco fue un consumidor selectivo intermedio. La diversidad dietaria de los adultos aumentó durante la época seca (D = 0.62; p<0.01) incluyendo hasta un 70% de hierbas y arbustos, mostrando una alta flexibilidad alimentaria entre estaciones (I=0.64) y hábitats (I=0.75, p<0.01), lo que le permitió minimizar la competencia con el ganado bovino y equino, que consumió principalmente gramíneas en ambas estaciones (>60%) y no mostró la misma flexibilidad (I=0.90, p<0.01). Los juveniles y los chulengos fueron más sensibles a las variaciones estacionales, consumiendo un menor porcentaje de arbustos pero tuvieron una preferencia marcada por las hierbas bajas.Universidad Nacional de Trujillo2010-12-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://revistas.unitru.edu.pe/index.php/scientiaagrop/article/view/4410.17268/sci.agropecu.2010.04.06Scientia Agropecuaria; Vol. 1 No. 3 y 4 (2010): July - December; 225-234Scientia Agropecuaria; Vol. 1 Núm. 3 y 4 (2010): Julio - Diciembre; 225-2342306-67412077-9917reponame:Revista UNITRU - Scientia Agropecuariainstname:Universidad Nacional de Trujilloinstacron:UNITRUspahttp://revistas.unitru.edu.pe/index.php/scientiaagrop/article/view/44/47Derechos de autor 2010 Scientia Agropecuariainfo:eu-repo/semantics/openAccess2021-06-01T15:35:14Zmail@mail.com -
dc.title.none.fl_str_mv Food preferences of guanaco (Lama guanicoe cacsilensis) and its competence with cattle in the Calipuy National Reserve, Peru
Preferencias alimenticias del guanaco (Lama guanicoe cacsilensis) y su competencia con el ganado doméstico en la Reserva Nacional de Calipuy, Perú
title Food preferences of guanaco (Lama guanicoe cacsilensis) and its competence with cattle in the Calipuy National Reserve, Peru
spellingShingle Food preferences of guanaco (Lama guanicoe cacsilensis) and its competence with cattle in the Calipuy National Reserve, Peru
Linares, Luis
Food
preference
competence
guanaco
cattle
Calipuy National Reserve
Preferencia alimentaria
guanaco
competencia
ganado
Reserva Nacional de Calipuy
title_short Food preferences of guanaco (Lama guanicoe cacsilensis) and its competence with cattle in the Calipuy National Reserve, Peru
title_full Food preferences of guanaco (Lama guanicoe cacsilensis) and its competence with cattle in the Calipuy National Reserve, Peru
title_fullStr Food preferences of guanaco (Lama guanicoe cacsilensis) and its competence with cattle in the Calipuy National Reserve, Peru
title_full_unstemmed Food preferences of guanaco (Lama guanicoe cacsilensis) and its competence with cattle in the Calipuy National Reserve, Peru
title_sort Food preferences of guanaco (Lama guanicoe cacsilensis) and its competence with cattle in the Calipuy National Reserve, Peru
dc.creator.none.fl_str_mv Linares, Luis
Linares, Virginia
Mendoza, Gilmar
Peláez, Freddy
Rodríguez, Eric
Phum, Carlos
author Linares, Luis
author_facet Linares, Luis
Linares, Virginia
Mendoza, Gilmar
Peláez, Freddy
Rodríguez, Eric
Phum, Carlos
author_role author
author2 Linares, Virginia
Mendoza, Gilmar
Peláez, Freddy
Rodríguez, Eric
Phum, Carlos
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Food
preference
competence
guanaco
cattle
Calipuy National Reserve
Preferencia alimentaria
guanaco
competencia
ganado
Reserva Nacional de Calipuy
topic Food
preference
competence
guanaco
cattle
Calipuy National Reserve
Preferencia alimentaria
guanaco
competencia
ganado
Reserva Nacional de Calipuy
dc.description.none.fl_txt_mv The objective of this research was to determine the degree of food competition between guanaco and livestock in Calipuy National Reserve. Vegetation cover (CV) was determined by a survey of vegetation and composition of diets using a micro histological technique of feces (50 guanacos, 35 cows and 25 horses). The dietary overlap was determined by Horn Index (I), food preferences by Ivlev index (E) and the diet diversity by Shannon-Weaver index (D) .We found a low - moderate food competition between the guanaco and the cattle and horses. The dietary overlap was greater during the rainy season (I=0.80 and 0.88) where forage supply was high (CV=63%) and lower during the dry season (R=0.58 and 0.64) when there were shortages of food (CV=50%). The guanaco was an intermediate selective consumer. The dietary diversity of adults increased during the dry season (D=0.62, p<0.01) including up to 70% of herbs and shrubs, showing a high flexibility in food between seasons (I=0.64) and habitats (I=0.75, p<0.01), which allowed it to minimize competition with cattle and horses, which consumed mainly grasses in both seasons (>60%) and did not show the same flexibility (I=0.90, p<0.01). Chulengos and juveniles were more sensitive to seasonal variations, its consuming a lower percentage of shrubs, but had a strong preference for small herbs.
El objetivo de esta investigación fue determinar el grado de competencia alimentaria entre el guanaco y el ganado doméstico en la Reserva Nacional de Calipuy. La cobertura vegetal (CV) se determinó con un censo de vegetación y la composición de las dietas mediante la técnica microhistológica de las heces (50 guanacos, 35 vacunos y 25 equinos). La sobreposición dietaria se determinó mediante el Índice de Horn (I), las preferencias alimentarias mediante el índice de Ivlev (E), y la diversidad de la dieta con índice de Shannon-Weaver (D). Se encontró una baja-moderada competencia alimentaria entre el guanaco y el ganado bovino y equino. La sobreposición dietaria fue mayor durante la época lluviosa (I =0. 80 y 0.88) en que la oferta de forraje fue alta (CV= 63%); y menor durante la época seca (I=0.58 y 0.64) en que hubo escasez de alimento (CV=50%). El guanaco fue un consumidor selectivo intermedio. La diversidad dietaria de los adultos aumentó durante la época seca (D = 0.62; p<0.01) incluyendo hasta un 70% de hierbas y arbustos, mostrando una alta flexibilidad alimentaria entre estaciones (I=0.64) y hábitats (I=0.75, p<0.01), lo que le permitió minimizar la competencia con el ganado bovino y equino, que consumió principalmente gramíneas en ambas estaciones (>60%) y no mostró la misma flexibilidad (I=0.90, p<0.01). Los juveniles y los chulengos fueron más sensibles a las variaciones estacionales, consumiendo un menor porcentaje de arbustos pero tuvieron una preferencia marcada por las hierbas bajas.
description The objective of this research was to determine the degree of food competition between guanaco and livestock in Calipuy National Reserve. Vegetation cover (CV) was determined by a survey of vegetation and composition of diets using a micro histological technique of feces (50 guanacos, 35 cows and 25 horses). The dietary overlap was determined by Horn Index (I), food preferences by Ivlev index (E) and the diet diversity by Shannon-Weaver index (D) .We found a low - moderate food competition between the guanaco and the cattle and horses. The dietary overlap was greater during the rainy season (I=0.80 and 0.88) where forage supply was high (CV=63%) and lower during the dry season (R=0.58 and 0.64) when there were shortages of food (CV=50%). The guanaco was an intermediate selective consumer. The dietary diversity of adults increased during the dry season (D=0.62, p<0.01) including up to 70% of herbs and shrubs, showing a high flexibility in food between seasons (I=0.64) and habitats (I=0.75, p<0.01), which allowed it to minimize competition with cattle and horses, which consumed mainly grasses in both seasons (>60%) and did not show the same flexibility (I=0.90, p<0.01). Chulengos and juveniles were more sensitive to seasonal variations, its consuming a lower percentage of shrubs, but had a strong preference for small herbs.
publishDate 2010
dc.date.none.fl_str_mv 2010-12-25
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://revistas.unitru.edu.pe/index.php/scientiaagrop/article/view/44
10.17268/sci.agropecu.2010.04.06
url http://revistas.unitru.edu.pe/index.php/scientiaagrop/article/view/44
identifier_str_mv 10.17268/sci.agropecu.2010.04.06
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv http://revistas.unitru.edu.pe/index.php/scientiaagrop/article/view/44/47
dc.rights.none.fl_str_mv Derechos de autor 2010 Scientia Agropecuaria
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Derechos de autor 2010 Scientia Agropecuaria
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad Nacional de Trujillo
publisher.none.fl_str_mv Universidad Nacional de Trujillo
dc.source.none.fl_str_mv Scientia Agropecuaria; Vol. 1 No. 3 y 4 (2010): July - December; 225-234
Scientia Agropecuaria; Vol. 1 Núm. 3 y 4 (2010): Julio - Diciembre; 225-234
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2077-9917
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instname_str Universidad Nacional de Trujillo
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