Diet of Larval<i>Ambystoma altamiranoi</i>from Llano de los Axolotes, Mexico

Lemos‐Espinal, Julio A.; Smith, Geoffrey R.; Woolrich-Piña, Guillermo A.

doi:10.5358/hsj.34.75

Cited by 9 publications

(5 citation statements)

References 21 publications

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“…Our results do not appear to match this observation, since the section of stream that we sampled was highly disturbed by humans. We found that snails were consumed in this population of A. rivulare, but at a relatively low abundance compared to some other populations of larval Ambystoma in the streams near Mexico City (e.g., A. altamiranoi; Lemos-Espinal et al 2015). Ruíz-Martínez et al (2014) found that snail consumption by A. ordinarium was higher in areas with more human disturbance, and our observation of gastropods in the diet are higher than the 1-2% of physid snails found in the diet of A. ordinarium.…”

Section: Discussionmentioning

confidence: 92%

“…Bardwell et al (2007) reported that 6% of larval Jefferson Salamander (Ambystoma jeffersonianum) stomachs were empty. For larval Mountain Stream Siredon (Ambystoma altamiranoi), another endangered Ambystoma from the environs of Mexico City, empty stomachs were found in 13.3% of the individuals examined (Lemos-Espinal et al 2015). The relatively high proportion of empty stomachs suggests that the A. rivulare population we examined might be resource limited (see Huey et al 2001).…”

Section: Annelidamentioning

confidence: 99%

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Diet of larval Ambystoma rivulare (Caudata: Ambystomatidae), a threatened salamander from the Volcán Nevado de Toluca, Mexico

2015

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Diet of larval Ambystoma rivulare (Caudata: Ambystomatidae), a threatened salamander from the Volcán Nevado de Toluca, Mexico. Several species of salamander in the genus Ambystoma occur in the mountains surrounding Mexico City and are considered at risk of extinction. However, little is known about their ecology and natural history. The Toluca Stream Siredon (Ambystoma rivulare September 2014, we examined the diet of larval A. rivulare from a stream on the Volcán Nevado de Toluca in Mexico to provide insight into the suitability of the habitat to support this population of salamanders. Ostracods accounted for approximately 90% of all prey items consumed by larval A. rivulare. The number of ostracods found in stomachs increased with individual body size, but the proportion of ostracods in stomachs did not vary with body size. Nematodes were observed in approximately one third of the stomachs we examined. The diversity of prey in the diet of A. rivulare in the stream we studied is low and dominated by a single prey taxon, ostracods. Our results suggest that if environmental conditions in the stream change such that ostracods are negatively affected then the longterm persistence of this population of A. rivulare might be in jeopardy.

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Section: Discussionmentioning

confidence: 92%

Section: Annelidamentioning

confidence: 99%

Diet of larval Ambystoma rivulare (Caudata: Ambystomatidae), a threatened salamander from the Volcán Nevado de Toluca, Mexico

2015

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“…In addition to the LZNP populations, A. altamirani has been recorded from the Las Cruces mountains (States of Mexico and Mexico City) and other areas in the upper Lerma River basin (Reilly and Brandon 1994;Lemos-Espinal et al 1999;Lemos-Espinal et al 2015;Woolrich-Piña et al 2017;Monroy-Vilchis et al 2019). Despite having some level of federal or state protection, other freshwater ecosystems in the area face similar threats as they do in the LZNP.…”

Section: Discussionmentioning

confidence: 99%

Signals of decline of flagship species Ambystoma altamirani Dugès, 1895 (Caudata, Ambystomatidae) in a Mexican natural protected area

Paz¹,

Mercado‐Silva²,

Alcalá³

et al. 2020

Herpetozoa

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Mexico is home to 18 species of salamanders in the family Ambystomidae. Endangered Ambystoma altamirani Dugès, 1895 is a flagship species for the Lagos de Zempoala National Park (LZNP) in central Mexico, a protected area subject to numerous anthropogenic threats. Ambystoma altamirani populations in the Park have been little studied. In 2016–2017, we surveyed four streams where populations of the species had been previously reported. Habitat variables did not differ amongst streams and three had invasive rainbow trout, but we were only able to locate one A. altamirani population in Quila, a small, cold water stream lacking fish. We captured an average of 88 individuals (total n = 354; range 53–109) across all samples in this stream, including larvae, juveniles and adults. Population estimates ranged between 53 and 127 individuals. The absence in other streams suggests reductions in the spatial extent of A. altamirani in the LZNP. We suggest rainbow trout presence in numerous streams have led to local extirpation of A. altamirani and that removal and blockage of the invasive fish and a planned re-introduction strategy might help in restoring this flagship species.

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“…En Michoacán habita en los municipios de Zitácuaro y Angangueo, que forman parte de la Reserva de la Biósfera de la Mariposa Monarca (RBMM), ubicada entre los estados de Michoacán y México, con una extensión de 56,259 ha dentro de las cuales se encuentran al menos ocho asentamientos humanos. En el Estado de México su distribución es más amplia, existen poblaciones en los municipios de Villa de Allende, Villa Victoria, Toluca, Zinacantepec, Temascaltepec y Calimaya, estos últimos cuatro forman parte del Área de Protección de Flora y Fauna Nevado de Toluca (APFFNT), donde esta especie tiene mayor número de poblaciones, al menos 12, distribuidas en las 54,000 ha que forman el área natural protegida (Barriga-Vallejo et al, 2015;Lemos-Espinal et al, 2015;Heredia-Bobadilla et al, 2016;Monroy-Vilchis et al, 2019).…”

Section: Método De Evaluación De Riesgo De Extinción De Especies Silvestresunclassified

Análisis de la categoría de riesgo de los ajolotes de arroyos de alta montaña (Caudata: Ambystoma)

Heredia-Bobadilla

Sunny

2021

AZM

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Los ajolotes de arroyos de alta montaña (Ambystoma), forman parte de especies vulnerables debido a la naturaleza de su distribución, la cual se restringe a pequeños arroyos permanentes en las montañas de la Faja Volcánica Transmexicana; estas especies, además, se conforman por poblaciones pequeñas y aisladas, lo cual incrementa su vulnerabilidad. En este trabajo se analizan las amenazas potenciales para Ambystoma rivulare, A. altamirani y A. leorae, y con base en los criterios propuestos por la SEMARNAT y el Puntaje de Vulnerabilidad Ambiental desarrollado por Wilson y McCranie (2003), se argumenta que el estado de conservación de estas especies puede cambiarse a un nivel de mayor protección.

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Diet of LarvalAmbystoma altamiranoifrom Llano de los Axolotes, Mexico

Cited by 9 publications

References 21 publications

Diet of larval Ambystoma rivulare (Caudata: Ambystomatidae), a threatened salamander from the Volcán Nevado de Toluca, Mexico

Diet of larval Ambystoma rivulare (Caudata: Ambystomatidae), a threatened salamander from the Volcán Nevado de Toluca, Mexico

Signals of decline of flagship species Ambystoma altamirani Dugès, 1895 (Caudata, Ambystomatidae) in a Mexican natural protected area

Análisis de la categoría de riesgo de los ajolotes de arroyos de alta montaña (Caudata: Ambystoma)

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