Reproductive activity of<i>bombina pachypus</i>from southern Italy

Guarino, Fabio Maria; Bellini, Luigi; Mazzarella, Giuseppe; Angelini, F.

doi:10.1080/11250009809386770

Cited by 20 publications

(21 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Females additionally display risk‐spreading tactics through egg‐clutch fractionation over space and time (Buschmann, ). The flexibility of the ovarian system of bombinatorids allows the continuous production or resorption of oocytes over the course of the breeding season (Guarino et al ., ).…”

Section: Methodsmentioning

confidence: 99%

Demographic responses to weather fluctuations are context dependent in a long‐lived amphibian

Cayuela

Arsovski

Thirion

et al. 2016

Global Change Biology

View full text Add to dashboard Cite

Weather fluctuations have been demonstrated to affect demographic traits in many species. In long-lived organisms, their impact on adult survival might be buffered by the evolution of traits that reduce variation in interannual adult survival. For example, skipping breeding is an effective behavioral mechanism that may limit yearly variation in adult survival when harsh weather conditions occur; however, this in turn would likely lead to strong variation in recruitment. Yet, only a few studies to date have examined the impact of weather variation on survival, recruitment and breeding probability simultaneously in different populations of the same species. To fill this gap, we studied the impact of spring temperatures and spring rainfall on survival, on reproductive skipping behavior and on recruitment in five populations of a long-lived amphibian, the yellow-bellied toad (Bombina variegata). Based on capture-recapture data, our findings demonstrate that survival depends on interactions between age, population and weather variation. Varying weather conditions in the spring result in strong variation in the survival of immature toads, whereas they have little effect on adult toads. Breeding probability depends on both the individual's previous reproductive status and on the weather conditions during the current breeding season, leading to high interannual variation in recruitment. Crucially, we found that the impact of weather variation on demographic traits is largely context dependent and may thus differ sharply between populations. Our results suggest that studies predicting the impact of climate change on population dynamics should be taken with caution when the relationship between climate and demographic traits is established using only one population or few populations. We therefore highly recommend further research that includes surveys replicated in a substantial number of populations to account for context-dependent variation in demographic processes.

show abstract

Section: Methodsmentioning

confidence: 99%

Demographic responses to weather fluctuations are context dependent in a long‐lived amphibian

Cayuela

Arsovski

Thirion

et al. 2016

Global Change Biology

View full text Add to dashboard Cite

show abstract

“…The flexibility of the ovarian functioning of bombinatorids allows the continuous production or resorption of oocytes over the course of the breeding season (Guarino et al. ).…”

Section: Methodsmentioning

confidence: 99%

Does habitat unpredictability promote the evolution of a colonizer syndrome in amphibian metapopulations?

Cayuela

Boualit

Arsovski

et al. 2016

Ecology

View full text Add to dashboard Cite

Dispersal is a central component of life history evolution. An increasing number of studies suggest that spatiotemporally variable environments may promote the evolution of "dispersal syndromes," consisting of covariation patterns between dispersal and morphological, physiological, behavioral, and life history traits. At the interspecific scale, the "colonizer syndrome" appears to be one of the most frequently recorded associations between dispersal and life history traits, linking a high dispersal rate, high fecundity, and a short lifespan as systematically combined adaptations in spatiotemporally varying environments. However, few studies have highlighted the existence of a "colonizer syndrome" at the intraspecific scale, and none have investigated how different degrees of habitat stochasticity might shape covariation patterns between dispersal and life history traits. In this study, we examined this issue in free-ranging metapopulations of the yellow-bellied toad (Bombina variegata) using capture-recapture data. Combining the results of this study with another recent study, we found that a high dispersal rate, high fecundity, and a short lifespan are associated in metapopulations experiencing unpredictable environments. In contrast, a very low dispersal rate (close to zero), low fecundity and a long lifespan are associated in metapopulations occupying predictable environments. We discuss these results as well as their demographic and evolutionary consequences.

show abstract

“…In favourable environmental conditions, the female can lay the major part of the eggs continu ously for quite a prolonged period (up to some weeks). Additional information on the reproductive cycle and on the behaviour of the species can be found in Guarino et al (1998) and Di Cerbo & Ferri (2000a). According to a study carried out on a population in the eastern slope of the Majella National Park (Abruzzi), the larval develop ment occurs in 45-70 days (Di Cerbo & Ferri, 2000a).…”

Section: Ecological Aspectsmentioning

confidence: 99%

Distribution and conservation status ofBombina variegatain Italy (Amphibia, Bombinatoridae)

Barbieri¹,

Bernini²,

Guarino³

et al. 2004

Italian Journal of Zoology

Self Cite

View full text Add to dashboard Cite

The present paper reports data on distribution, demographic parameters, ecological preferences and conservation status of Bombina variegata variegata and B. v. pacbypus from the Italian peninsula. Owing to the wide distribution, we selected as a sam ple the following regions as sample regions: Lombardy, Veneto, Friuli-Venezia Giulia, Abruzzi, Lalium, Campania, Basilicata, Apu lia and Calabria, and the autonomous province of Trento 3 . For each region, we carried out bibliographic and museum research es, together with field surveys in order to collect updated faunistic data. B. v. variegata showed a general preference for hilly and mountain areas at medium/low elevation, under 1100 m. Our field surveys confirmed 44 sites out of 49 investigated; so the number of populations in northern Italy seems to be substantially stable. However, in several sites, particularly as regards prealpine Lombardy, a numerical decrease of individuals was observed; this fact suggests that this taxon could be threatened. B. v. pacbypus predominantly inhabits areas at altitudes of less than 1400 m. Out of 55 sites where this taxon was found prior to 1996, the present study confirmed only 33. Nevertheless, the status of the B. v. pacbypus populations from southern Italy seemed to be different, being vulnerable with respect to the populations of Abruzzi, Cam pania, Latium and Apulia, and not vulnerable as far as the Calabrian population is concerned.Finally, for both B. v. variegata and B. v. pacbypus, we discuss threats and conservation perspectives.

show abstract

Reproductive activity ofbombina pachypusfrom southern Italy

Cited by 20 publications

References 20 publications

Demographic responses to weather fluctuations are context dependent in a long‐lived amphibian

Demographic responses to weather fluctuations are context dependent in a long‐lived amphibian

Does habitat unpredictability promote the evolution of a colonizer syndrome in amphibian metapopulations?

Distribution and conservation status ofBombina variegatain Italy (Amphibia, Bombinatoridae)

Contact Info

Product

Resources

About