Reproduction, phenology and mortality sources of a species of<i>Physalaemus</i>(Anura: Leptodactylidae)

Giaretta, Ariovaldo Antônio; Menin, Marcelo

doi:10.1080/00222930310001597286

Cited by 47 publications

(41 citation statements)

References 17 publications

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“…Colonial nests may be more attractive to specialist nest parasites such as frog flies (Downie et al 1995;Vonesh 2000;Menin & Giaretta 2003;Giaretta & Menin 2004) because such nests are probably easier to locate, and infestation of one nest could permit access to all. Advantages to the frogs may include a …”

Section: Discussionmentioning

confidence: 99%

Building a home from foam—túngara frog foam nest architecture and three-phase construction process

Dalgetty

Kennedy

2010

Biol. Lett.

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Frogs that build foam nests floating on water face the problems of over-dispersion of the secretions used and eggs being dangerously exposed at the foam : air interface. Nest construction behaviour of túngara frogs, Engystomops pustulosus , has features that may circumvent these problems. Pairs build nests in periodic bursts of foam production and egg deposition, three discrete phases being discernible. The first is characterized by a bubble raft without egg deposition and an approximately linear increase in duration of mixing events with time. This phase may reduce initial over-dispersion of foam precursor materials until a critical concentration is achieved. The main building phase is marked by mixing events and start-to-start intervals being nearly constant in duration. During the final phase, mixing events do not change in duration but intervals between them increase in an exponential-like fashion. Pairs joining a colonial nesting abbreviate their initial phase, presumably by exploiting a pioneer pair's bubble raft, thereby reducing energy and material expenditure, and time exposed to predators. Finally, eggs are deposited only in the centre of nests with a continuously produced, approximately 1 cm deep egg-free cortex that protectively encloses hatched larvae in stranded nests.

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Section: Discussionmentioning

confidence: 99%

Building a home from foam—túngara frog foam nest architecture and three-phase construction process

Dalgetty

Kennedy

2010

Biol. Lett.

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“…In Uberlândia, frogs were more abundant during wet months, which can be attributed to a greater movement rate of adults around breeding sites and juvenile recruitment/dispersion (GIARETTA & KOKUBUM, 2004;GIARETTA & MENIN, 2004). Although the rank of abundance was relatively similar in our both sampled sites, the "Caça e Pesca" (the most disturbed site) presented a higher species diversity and abundance.…”

Section: Discussionmentioning

confidence: 68%

“…Although the rank of abundance was relatively similar in our both sampled sites, the "Caça e Pesca" (the most disturbed site) presented a higher species diversity and abundance. This can be attributed to species underrepresented at Panga, such as R. granulosa (Spix, 1824), L. ocellatus (Linnaeus, 1758), L. labyrinthicus (Spix, 1824), and P. marmoratus (Reinhardt & Lütken, 1862), which reproduce mainly in human generated bodies of water (e. g. lakes and ponds) (FRANÇA et al, 2004;GIARETTA & MENIN, 2004;SILVA et al, 2005) which are less common there. The even smaller number of species at Galheiro could also be related to the scarcity of adequate breeding areas such as ponds and veredas as well, and to its higher altitude.…”

Section: Discussionmentioning

confidence: 99%

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Species richness, relative abundance, and habitat of reproduction of terrestrial frogs in the Triângulo Mineiro region, Cerrado biome, southeastern Brazil

Giaretta

Menin

Facure

et al. 2008

Iheringia, Sér. Zool.

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ABSTRACT. Based on field observations and pitfall sampling, we determined the species richness, relative abundance, and reproductive habitat of terrestrial frogs in three municipalities in the Triângulo Mineiro region, south Cerrado biome, in southeastern Brazil. We found thirty-two species of terrestrial frogs, belonging to the families Brachycephalidae, Bufonidae, Cycloramphidae, Dendrobatidae, Leiuperidae, Leptodactylidae and Microhylidae. Most of the species were found in open areas and reproduced in human-generated environments, such as artificial lakes (10 species) and ponds (14 species). Dominance was high, with Physalaemus cuvieri Fitzinger, 1826 (Leiuperidae) representing 48% of sampled frogs. A larger number of individuals was captured in the wet season, when most of the species were reproducing. Compared to other areas of Cerrado biome, the Triângulo Mineiro sites presented a larger number of species, which may be attributed to the larger sampled area and greater sampling effort, lower altitude and presence of human generated habitats. The richness of terrestrial frogs was also larger than that in some forested localities in southeastern Brazil, indicating that the number of species cannot be explained only by precipitation and type of vegetation cover. The greater abundance of individuals during the wet season may be related to a greater movement of adults to breeding sites and to juvenile recruitment/dispersion. The heterogeneity of environments in the Cerrado biome, including its several isolated highlands, contributes to its high (local and regional) diversity of frogs. KEYWORDS.Reproductive habitat, relative abundance, richness, Triângulo Mineiro, southeastern Brazil. RESUMO. Riqueza, abundância relativa e hábitat de reprodução de espécies de anuros terrestres na região do TriânguloMineiro, bioma Cerrado, sudeste do Brasil. Neste estudo foram determinados a riqueza, abundância relativa e hábitat de reprodução de anuros terrestres em três municípios do Triângulo Mineiro, sul do Bioma Cerrado, sudeste do Brasil, baseados em observações de campo e armadilhas de interceptação e queda. Foram encontradas 32 espécies pertencentes às famílias Brachycephalidae, Bufonidae, Cycloramphidae, Dendrobatidae, Leiuperidae, Leptodactylidae e Microhylidae. Muitas dessas espécies foram encontradas em áreas abertas e se reproduziram em ambientes artificiais gerados por ação antrópica, tais como lagos (10 espécies) e poças (14 espécies). Physalaemus cuvieri Fitzinger, 1826 (Leiuperidae) foi a espécie dominante, representando 48% do total amostrado. Um grande número de indivíduos de diferentes espécies foi capturado na estação chuvosa, quando muitas das espécies estavam reproduzindo. As áreas amostradas na região do Triângulo Mineiro apresentaram um maior número de espécies quando comparadas com outras áreas do bioma Cerrado, o que pode ser atribuído à maior área amostrada, ao maior esforço de coleta, baixa altitude e presença de hábitats gerados por ação antrópica. A riqueza de anuros terrestres também foi maior do qu...

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“…Atualizado e modificado de Skelly (2001 , 1862)), porém, ainda não foi demonstrado se este fenômeno é gerado pelo comportamento de escolha efetiva das fêmeas. Outra distinção importante seria determinar se desovas comunais ocorrem porque as fêmeas preferem desovar em sítios já ocupados por desovas coespecíficas ou representam apenas um efeito colateral da escolha de sítios de maior qualidade por várias fêmeas com base em outros fatores ambientais (Giaretta & Menin 2004, Giaretta & Facure 2006. Portanto, estudos adicionais serão necessários para comprovar se este fenômeno é gerado pelo comportamento de escolha efetiva das fêmeas e quais as vantagens e desvantagens associadas.…”

Section: Estudos De Casounclassified

Seleção de sítios de oviposição em anuros (Lissamphibia)

Silva

Giaretta

2008

Biota Neotrop.

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GIARETTA, A.A. Oviposition site selection in anurans (Lissamphibia). Biota Neotrop. 8(2): http://www.biotaneotropica.org.br/v8n3/en/abstract?thematic-review+bn02008032008. Abstract:Oviposition site selection is a kind of habitat selection in which the females choose egg-laying sites that maximize their reproductive success. In the present review, we compiled the main conclusions of major studies on this theme that used frogs as model organisms. In the literature, three main lines of investigations were recognized: 1) multiple factor analyses in natural habitats-within the breeding site, places with eggs/tadpoles are compared with unused sites, testing several abiotic and biotic factors that could potentially influence female's choice; 2) experiments with pools arranged in replicated blocks (treatments/control) to simulate oviposition sites differing in quality and 3) quantification of reproductive events associated with experimental manipulations in the field. Effectively, females of several frog species select oviposition sites more favorable to survival and development of eggs and tadpoles. In general, the female choice depends on the abundance and quality of potential egg-laying sites and on her discriminatory ability. Female choices usually mirror the main risks to survival and growth of the offspring, but discriminatory power is not absolute and partial or total losses of clutches and tadpoles may occur, most of them resulting from desiccation and predation. The sensory mechanisms that females use to discriminate the conditions of potential oviposition sites remain poorly known and unexplored. Besides affecting the parental reproductive success, the selective behavior potentially influence population dynamics and community structure by promoting habitat segregation among competitive species or prey-species and their predators. Resumo: A seleção de sítios de oviposição é uma forma de seleção de hábitat em que as fêmeas escolhem o micro-ambiente de desova procurando maximizar o sucesso reprodutivo. Nesta revisão, compilamos as principais conclusões de estudos sobre seleção de sítios de oviposição tendo os anuros como modelo. Na literatura, podemos reconhecer três linhas principais de investigação: 1) análise de múltiplos fatores em hábitat natural-no ambiente de reprodução, sítios com ovos e girinos são comparados com locais não utilizados com base em fatores abióticos e bióticos com potencial de influenciar a escolha da fêmea; 2) experimentos controlados com poças dispostas em blocos replicados simulando sítios potenciais de oviposição com diferenças na qualidade e 3) quantificações de eventos reprodutivos e experimentos de manipulação em ambiente natural. Fêmeas de várias espécies de anuros selecionam sítios de oviposição mais favoráveis à sobrevivência e desenvolvimento dos ovos e girinos. O comportamento de escolha depende da abundância e qualidade relativa dos locais potenciais de desova e da capacidade de discriminação da fêmea. Em geral, as escolhas das fêmeas respondem aos principais riscos à sobreviv...

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Reproduction, phenology and mortality sources of a species ofPhysalaemus(Anura: Leptodactylidae)

Cited by 47 publications

References 17 publications

Building a home from foam—túngara frog foam nest architecture and three-phase construction process

Building a home from foam—túngara frog foam nest architecture and three-phase construction process

Species richness, relative abundance, and habitat of reproduction of terrestrial frogs in the Triângulo Mineiro region, Cerrado biome, southeastern Brazil

Seleção de sítios de oviposição em anuros (Lissamphibia)

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