Breeding phenology of an amphibian community in a Mediterranean area

Richter‐Boix, Àlex; Llorente, Gustavo A.; Montori, Albert

doi:10.1163/156853806778877149

Cited by 52 publications

(31 citation statements)

References 45 publications

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“…The environmental cue associated with timing of reproduction may vary depending on the species' breeding habitat or other life history characteristics. A recent study found that species using permanent ponds had a breeding peak related to temperature, while those using ephemeral ponds responded to precipitation [62]. These data suggest that timing of reproduction is closely linked to environmental cues and supports the assertion that climate change will likely affect the timing of reproduction in many species.…”

Section: Effects Of Climate Change On Reproductionmentioning

confidence: 58%

Direct and Indirect Effects of Climate Change on Amphibian Populations

et al. 2010

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Abstract:As part of an overall decline in biodiversity, populations of many organisms are declining and species are being lost at unprecedented rates around the world. This includes many populations and species of amphibians. Although numerous factors are affecting amphibian populations, we show potential direct and indirect effects of climate change on amphibians at the individual, population and community level. Shifts in amphibian ranges are predicted. Changes in climate may affect survival, growth, reproduction and dispersal capabilities. Moreover, climate change can alter amphibian habitats including vegetation, soil, and hydrology. Climate change can influence food availability, predator-prey relationships and competitive interactions which can alter community structure. Climate change can also alter pathogen-host dynamics and greatly influence how diseases are manifested. Changes in climate can interact with other stressors such as UV-B radiation and contaminants. The interactions among all these factors are complex and are probably driving some amphibian population declines and extinctions. OPEN ACCESSDiversity 2010, 2 282

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Section: Effects Of Climate Change On Reproductionmentioning

confidence: 58%

Direct and Indirect Effects of Climate Change on Amphibian Populations

et al. 2010

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“…However, Jakob et al (2003) reported inter-annual variability at the regional scale (i.e. some species disappeared from the study area in particular years) while Richter-Boix et al (2006) found that all amphibian species regularly bred every year. High temporal turnover is expected in non-stable habitats (Moreno and Halffter, 2001), such as Mediterranean temporary ponds.…”

Section: Discussionmentioning

confidence: 99%

Inter‐annual variability in amphibian assemblages: implications for diversity assessment and conservation

Gómez‐Rodríguez

Díaz‐Paniagua

Bustamante

et al. 2010

Aquatic Conservation

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ABSTRACT1. Diversity assessments and conservation management should take into account the dynamic nature of populations and communities, particularly when they are subject to highly variable and unpredictable environmental conditions.2. This study evaluates the inter-annual variability in the assemblage composition (temporal turnover) of an amphibian community breeding in a highly dynamic habitat, a Mediterranean temporary pond system, during a 4-year period.3. A comprehensive framework is provided to evaluate temporal turnover from data of a differing nature (species richness, presence/absence and relative abundance) and, especially, to discern variation in richness (species loss) from changes in the identity or abundance of species (species replacement).4. Results show that the pond amphibian assemblages in Don˜ana National Park exhibited high inter-annual variability during the study period, both in the number of species, species identity and their relative abundance. This result provides evidence for the inadequacy of surveys conducted only in one breeding season to characterize the species assemblage associated with a given pond. Besides, it suggests that a given pond offers different breeding opportunities over time, being suitable for different species depending on the year. This alternation will contribute to the medium-term preservation of all species in the assemblage.5. It is highly relevant to preserve the natural dynamism and spatial variability of temporary pond systems, which will favour the conservation of populations through their intrinsic variability.

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“…Humidity mediates reproductive activity in several amphibian species (Oseen andWassersug 2002, Richter-Boix et al 2006), and air temperature has been associated to activity of other species of genus Elachistocleis and is classically related to amphibian activity in temperate environments (Oseen and Wassersug 2002, Saenz et al 2006, Richter-Boix et al 2006, Canavero et al 2008. Therefore, reproduction and foraging activities are regulated by different climatic variables.…”

Section: Discussionmentioning

confidence: 99%

Spatio-temporal patterns of foraging and feeding behavior of Elachistocleis bicolor (Anura: Microhylidae)

López¹,

Antoniazzi²,

Lorenzón³

et al. 2017

Caldasia

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We analyzed spatio-temporal patterns and behavior of the foraging activity of the myrmecophagous frog Elachistocleis bicolor. We delimit ten 1m 2 plots and recorded the number of frogs, distance between individuals and foraging behavior at half-hour intervals, during nine days. Using a generalized linear mixed model, we evaluated the maximum, minimum, and average daily temperature, microhabitat temperature, relative humidity, atmospheric pressure, the number of days since the last rain and last 48 hours accumulated rainfall as explanatory variables of frogs' activity. The variables that best explained frogs' activity were: mean atmospheric pressure, number of days since last rain and accumulated rainfall. Frogs showed an aggregated distribution pattern when foraging (Morisita standardized index= 0.501). The average distance between frogs was 47.53±25.28 mm. Frogs displayed a combined (active-passive) foraging strategy, actively searching ant trails, digging with their heads on trails running under the mulch, and them passively preying on ants as they pass through. Results showed that the E. bicolor foraging activity followed a circadian cycle that is regulated by several climatic variables, and that these frogs aggregated when foraging for ants.Key words. Mirmecophagy, phenology, feeding behavior, two-colored oval frog. RESUMENAnalizamos los patrones espacio-temporales y comportamiento de forrajeo de la rana mirmecófaga Elachistocleis bicolor. Delimitamos diez cuadrantes de 1 m 2 en los que registramos el número de ranas, distancia entre individuos y comportamiento a intervalos de media hora durante nueve días. Utilizando modelos lineales mixtos generalizados evaluamos el poder explicativo de las variables: temperaturas diarias máximas, mínimas y medias, temperatura de microhábitat, humedad relativa, presión atmosférica, días transcurridos desde la última lluvia y pluviosidad acumulada en las últimas 48 horas, sobre la actividad de las ranas. Las variables que mejor explicaron la actividad de las ranas fueron: presión atmosférica media, días desde la última lluvia y pluviosidad acumulada. Las ranas mostraron un patrón de distribución agregado durante el forrajeo (índice estandarizado de Morisita = 0,501). La distancia media entre ranas fue 47,53±25,28 mm. Las ranas exhibieron un comportamiento 346 Foraging activity of Elachistocleis bicolor

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Breeding phenology of an amphibian community in a Mediterranean area

Cited by 52 publications

References 45 publications

Direct and Indirect Effects of Climate Change on Amphibian Populations

Direct and Indirect Effects of Climate Change on Amphibian Populations

Inter‐annual variability in amphibian assemblages: implications for diversity assessment and conservation

Spatio-temporal patterns of foraging and feeding behavior of Elachistocleis bicolor (Anura: Microhylidae)

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