Diet, microhabitat and time of activity in a Pristimantis (Anura, Strabomantidae) assemblage

Arroyo, Sandy; Serrano-Cardozo, Víctor H.; Ramírez‐Pinilla, Martha Patricia

doi:10.11606/issn.2316-9079.v7i2p109-119

Cited by 28 publications

(20 citation statements)

References 25 publications

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“…Terrarana frogs in South America (Table 3) have shown a wide spectrum of prey types with predominance of coleopterans and hymenopterans in their diets, including previous studies of Pristimantis in the Eastern Cordillera from the Andes of Colombia (Piñero and Durant, 1993;Parmelee, 1999;Menendez-Guerrero, 2001;Guayasamin et al, 2004;Arroyo et al, 2008;Dietl et al, 2009;Castro and Gutiérrez, 2011). Montane frogs are mainly insectivore generalists that choose their prey depending on microhabitat preferences and food availability (Ortega et al, 2005;Arroyo et al, 2008).…”

Section: Discussionmentioning

confidence: 90%

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DIET OF DIRECT-DEVELOPING FROGS (ANURA: CRAUGASTORIDAE: Pristimantis) FROM THE ANDES OF WESTERN COLOMBIA

García–R¹,

Posso-Gómez²,

Cárdenas³

2014

Acta biol. colomb.

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Section: Discussionmentioning

confidence: 90%

“…Montane frogs are mainly insectivore generalists that choose their prey depending on microhabitat preferences and food availability (Ortega et al, 2005;Arroyo et al, 2008). However, the presence and abundance of prey items may vary by elevation and dominant vegetation type at each site.…”

Section: Discussionmentioning

confidence: 99%

DIET OF DIRECT-DEVELOPING FROGS (ANURA: CRAUGASTORIDAE: Pristimantis) FROM THE ANDES OF WESTERN COLOMBIA

García–R¹,

Posso-Gómez²,

Cárdenas³

2014

Acta biol. colomb.

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“…Este patrón de actividad durante todo el día con picos de actividad nocturnos no es común en anuros, que suelen ser asociados con actividad nocturna (Duellman & Trueb, 1994); sin embargo, otras especies de ranas de hojarasca y del clado Terrarana tienen este mismo patrón (e.j. Pristimantis douglasi Arroyo et al, 2008, P.aff. fenestratus, Waldez, Menin, & Rojas-Ahumada, 2011.…”

Section: Discussionunclassified

Ecología reproductiva de Geobatrachus walkeri (Anura: Srabomantidae)

Pacheco-Florez

Ramírez‐Pinilla

2014

RBT

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Reproductive ecology of Geobatrachus walkeri (Anura: Strabomantidae). Geobatrachus walkeri is a frog that belongs to a monotypic genus and is endemic to the Sierra Nevada de Santa Marta, Colombia. The species inhabits different microhabitats between 2 000 to 3 500m altitude, including the leaf litter of a pine plantation. To understand its reproductive ecology, we conducted eight frog samplings, covering the rainy and dry seasons, and two habitat types (secondary native forest and pine plantation) during 2010-2011. For this study, we also included data obtained from five previous similar samplings undertaken during [2008][2009]. The pine leaf litter was the main microhabitat where frogs were found; we heard choruses of six-ten calling males during all sampled months, and observed the frogs having diurnal and nocturnal activity. Regardless of the year of study, the population consisted of neonates recruited several times of the year, a large number of juveniles with a wide range of body sizes, and fewer adults with a narrower range of body size. The histological analyses of the gonads showed that the size at maturity was near 18mm SVL for males and females, and those adult males and females were reproductive active during all sampling months, suggesting a continuous reproductive activity pattern. However, during the dry season, the seminiferous tubules showed a drastically diminished spermatic epithelium although containing abundant luminal spermatozoa, which suggest a reduction in the sperm production at the end of this season. Similarly, frogs of all age categories were significantly more abundant during the early dry season, whereas were significantly less abundant with the advancement of the dryness suggesting that the intensity of the dry season could temporally stop the activity and reproduction of this population. Rev. Biol. Trop. 62 (1): 183-199. Epub 2014 March 01.

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“…Sólo alrededor de la primera década del siglo XXI se han generado iniciativas enfocadas a esclarecer aspectos de historia natural como ecología trófica, hábitos alimenticios o dieta de especies nativas de anuros y otros anfibios como los realizados por Rincón & Castro (1998), Muñoz et al (2007), Arroyo et al (2008), Blanco & Bonilla (2010), Isaacs & Hoyos (2010). La tendencia se ha mantenido con los aportes de Sampedro et al (2011), Hoyos et al (2012), García & Velásquez (2012), Fajardo et al (2013), Gómez et al (2013), Del Río et al (2014, Gómez et al (2014), Méndez et al (2014), Moreno & Hoyos (2014), Agudelo et al (2015), Blanco et al (2015)a, Blanco et al (2015)b y Pérez & Blanco (2016, entre otros.…”

Section: Introductionunclassified

Contenidos Estomacales De Especies De Anuros en Reservas Naturales Del Municipio De Villavicencio, Meta, Colombia

et al. 2016

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Caldasia 38(1): 165-181. 2016 RESUMEN Se analizó el contenido de 546 estómagos de 24 especies de anuros del piedemonte de la vertiente oriental de la Cordillera Oriental de Colombia. Cada estómago fue extraído, disectado y preservado, se realizaron mediciones de masa y volumen en lleno y vacío. Posteriormente, para cada una de las presas, se realizó la identificación taxonómica, conteo y se midieron el ancho y el largo de aquellas completas para establecer su aporte al volumen estomacal. Se identificaron 37 ítems alimenticios representados en 2986 individuos o partes de ellos. El porcentaje de vacuidad alcanzó una media de 25,2±23,02% del total estudiado. Los ítems más representativos corresponden a la Clase Insecta (95%), distribuidos en Hymenoptera (72.9%), Coleoptera (8%), Isoptera (6.2%) y Orthoptera (1,6%). Dentro de los artrópodos no insectos el ítem más representativo está en la Clase Arachnida (4%). La mayoría de las especies presentan valores medios y altos de amplitud de nicho, es decir, son generalistas en el consumo de presas.Palabras clave. Amphibia, Ecología Trófica, Áreas Protegidas, Orinoquia. ABSTRACTWe analyzed the contents of 546 stomachs of 24 species of anurans from the foothills of the eastern slopes of the Eastern Cordillera of Colombia. We removed, dissected and preserved each stomach, mass and volume measurements were performed in full and empty. Subsequently, each prey was identified, counted and measured (width and length) to determine its contribution to the stomach volume. We identified 37 food items represented in 2986 individuals or parts of them. The percentage of voidness reached an average of 25, 2±23, 02% of the total studied. The most representative items correspond to the class Insecta (95%), distributed in Hymenoptera (72.9%), Coleoptera (8%), Isoptera (6.2%) and Orthoptera (1.6%). Within the non-insect doi: http://dx.doi.org/10.15446/caldasia.v38n1.57836

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Diet, microhabitat and time of activity in a Pristimantis (Anura, Strabomantidae) assemblage

Cited by 28 publications

References 25 publications

DIET OF DIRECT-DEVELOPING FROGS (ANURA: CRAUGASTORIDAE: Pristimantis) FROM THE ANDES OF WESTERN COLOMBIA

DIET OF DIRECT-DEVELOPING FROGS (ANURA: CRAUGASTORIDAE: Pristimantis) FROM THE ANDES OF WESTERN COLOMBIA

Ecología reproductiva de Geobatrachus walkeri (Anura: Srabomantidae)

Contenidos Estomacales De Especies De Anuros en Reservas Naturales Del Municipio De Villavicencio, Meta, Colombia

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