Patterns of Spatial Distribution and Microhabitat Use by Syntopic Anuran Species along Permanent Lotic Ecosystems in the Cerrado of Southeastern Brazil

Oliveira, Francisco Fonseca Ribeiro de

doi:10.1655/08-070r3.1

Cited by 13 publications

(12 citation statements)

References 37 publications

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“…This agrees with results for adult frog assemblages in South-East Asia and the Neotropics (Inger et al, 1986;Zimmerman & Simberloff, 1996) that were interpreted as being caused by constant habitat conditions and therefore constant adult populations (Inger et al, 1986). Furthermore, in tropical rainforests frog home ranges may be very small (Inger et al, 1986) and migration may be of only minor importance (De Oliveira & Eterovick, 2010), but no such data on adults exist from Madagascar.…”

Section: Discussionsupporting

confidence: 85%

“…On a tadpole microhabitat scale, microhabitat choice has previously been found to lack a phylogenetic signal (Eterovick et al, 2010) but to be influenced by morphological adaptations and feeding ecology (Inger et al, 1986). Our data are in agreement with these previous results because species within some clusters are conspicuously similar in microhabitat preferences, whether these clusters totally correspond to phylogenetic clades (Mantidactylus-reduced teeth and Mantidactylus-funnel mouthed) or not (Boophis-suctorial).…”

Section: Species-habitat Associationssupporting

confidence: 92%

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Species distribution and assembly patterns of frog larvae in rainforest streams of Madagascar

et al. 2012

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Many tropical rainforests harbour speciesrich assemblages of frogs and, consequently, of tadpoles. These larvae are often morphologically highly diverse, especially in their oral structures. Whether this might represent an important axis of ecological partitioning in frog assemblages remains an untested hypothesis. In general, it is poorly known how diverse tadpole assemblages are organised. Using information from Madagascar's remarkably species-rich stream tadpole assemblages, we analysed the distribution and co-occurrence of 44 species. We also assessed the importance of phylogenetic history and eco-morphological adaptation for habitat selection at two functional and two spatial levels. We show that both rare and common species exist in most morphological clusters and phylogenetic groups of tadpoles. Habitat characteristics of the streams and surrounding forest influence species composition. Whereas there is a general trend in preferring wide and deep streams without a steep slope for most species, some of the morphological clusters separate along specific habitat variables. Stream choice is influenced both by phylogenetic history and morphological adaptation. Within streams, tadpoles partition microhabitat mainly according to their morphological cluster but without phylogenetic signal. Species dissimilarities of habitat selection on both spatial scales are not correlated. We found no evidence for competition in the tadpole assemblages studied.

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Section: Discussionsupporting

confidence: 85%

Section: Species-habitat Associationssupporting

confidence: 92%

Species distribution and assembly patterns of frog larvae in rainforest streams of Madagascar

et al. 2012

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“…S. baudinii and D. spatulata). In addition, the availability of different types of vegetation and other substrates may be sufficient to meet the needs of the hylid species, making inter-specific competition unlikely; similar to that found in a community of anurans that live in permanent streams in Southern Brazil (Afonso & Eterovick, 2007;Oliveira & Eterovick, 2010). On the other hand, within the microhylids, H. variolosus is often found in leaf litter and in rock crevices, but calling and breeding in the water of pools, whereas H. ustus was found calling and in amplexing on leaf litter, sand, or rocks.…”

Section: Discussionmentioning

confidence: 78%

Spatial and temporal distribution and microhabitat use of aquatic breeding amphibians (Anura) in a seasonally dry tropical forest in Chamela, Mexico

Luna-Gómez

García

Santos-Barrera

2017

RBT

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Abstract:The distribution of amphibians is affected by abiotic and biotic factors, availability of resources and the characteristics of reproductive sites. In particular, reproductive activity of aquatic-breeding anurans that inhabit tropical dry areas is affected by rainfall, which determines the availability and quality of reproductive sites. In this study, we analyzed the spatial and temporal distribution of anurans with indirect development in a tropical dry forest in Western Mexico, during two rainy seasons (July 10-October 4, 2013, and June 26-September 26, 2014). We collected data on the occupancy and reproductive activity of 15 species in four temporary streams, and evaluated their relationship with precipitation, humidity and temperature. We determined richness, abundance and diversity of species in each stream; we also identified differences in the reproductive strategies and microhabitats used by the species. The most abundant species were: Tlalocohyla smithii and Exerodonta smaragdina, whereas the least abundant were Leptodactylus melanonotus and Incilius mazatlanensis. Species richness, abundance and reproductive activity peaked alongside the stream with the greatest number of breeding sites (e.g. pools). We found temporal segregation in the occupancy and reproductive activity of species in all streams which were mainly associated with precipitation. However, occupancy and reproductive activity of some species overlapped up to four weeks during part of the breeding season. Most species used specific substrates for particular reproductive activities (e.g. oviposition), but used a range of microhabitats (leaf-litter, water, rocks, branches, leaves, logs, etc.) for others (e.g. calling). We discuss these behavioral differences as factors that facilitate coexistence of species in this environment in the rainy season. Rev. Biol. Trop. 65 (3): 1082-1094. Epub 2017 September 01.Key words: amphibians, reproductive strategies, environmental seasonality, reproductive activity, indirect development.Reproductive activity of anuran species is strongly influenced by abiotic factors such as precipitation and temperature (Moreira & Lima, 1991;Bertoluci, 1998;Ford & Scott, 2006;Saenz, Fitzgerald, Baum, & Conner 2006;Schalk & Saenz, 2016). It is further suggested that community structure is associated with reproductive phenology, as the sequence and variations of these events largely determine species composition at the local scale (Sáenz et al., 2006;Afonso & Eterovick, 2007). Anuran species that coexist present important differences in morphology, physiology, and behavior (Crump, 1974;Pough, Stewart, & Thomas, 1977;Cardoso, Andrade, & Haddad, 1989;Afonso & Eterovick, 2007). During the reproductive season, resource overlapping within the community becomes more intense (Bertoluci & Rodrigues, 2002), therefore species can exhibit temporal or spatial segregation or partial/complete overlap in the use of resources (Rossa-Feres & Jim, 2001). Temporal partitioning can be directly related to each region´s climate, partic...

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“…The climate in this region can be classified as tropical wet (sensu Ab'Saber, 1977) (Oliveira & Eterovick, 2010).…”

Section: Study Sitementioning

confidence: 99%

Feeding and social behavior of the piabanha, Brycon devillei (Castelnau, 1855) (Characidae: Bryconinae) in the wild, with a note on following behavior

2011

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Knowledge concerning the behavior of wild freshwater fishes in Brazil is restricted to a few studies, despite such studies being able to answer fundamental questions about conservation. Species of Brycon are amongst the most threatened in the Neotropics, particularly in southeast Brazil, due to anthropogenic activities in this region. This study investigated the feeding and social behaviors of the endangered fish, Brycon devillei in the Preto River, Jequitinhonha basin, Minas Gerais State, Brazil. Behavioral data were collected by snorkeling with four spatially separated groups (habituated), and direct observations of shoals were made using an underwater video camera (a total of 448 hours of observations). This species showed diverse tactics to obtain food. However, the species proved to be predominately a specialist surface-picker, which adopted alternative tactics to find food at certain times of the year, most notably when food items on the water surface became low. Feeding frequency was shown to be negatively correlated to agonistic behavior between conspecifics. Feeding associations were also recorded between the anostomid Leporinus garmani, acting as a nuclear species, and B. devillei, as follower species. The data presented here showed the importance of conserving the riparian environment to protect B. devillei populations. Furthermore, the present study included rare observations of nuclear-follower feeding association among freshwater fishes, especially between medium-sized characiforms, being the first observations of such kind in a Cerrado stream.O conhecimento do comportamento de vida livre em peixes de água doce brasileiros é restrito a poucos estudos e pode responder a questões fundamentais de conservação. Espécies do gênero Brycon estão entre as mais ameaçadas na região neotropical, especialmente no sudeste brasileiro, em vista de diversos impactos antrópicos. O presente estudo investigou os comportamentos alimentar e social de Brycon devillei no rio Preto, bacia do Jequitinhonha, Brasil. Para tanto, utilizou-se seções de mergulhos livres para observação direta de quatro grupos habituados de B. devillei, com o auxílio de câmeras filmadoras subaquáticas. Tal espécie apresentou variadas táticas para obtenção de alimento. Entretanto, a espécie demonstrou ser um forrageador de superfície especializado que, em determinados períodos do ano, quando provavelmente a lâmina d'água torna-se uma fonte escassa de recursos, adota táticas alternativas em busca de alimentos. A frequência de forrageamento demonstrou ser negativamente correlacionada com os comportamentos agonísticos. Foram observadas associações alimentares interespecíficas envolvendo o timburé, Leporinus garmani, como espécie nuclear, e a piabanha, Brycon devillei, como sua seguidora. Os dados apresentados no presente estudo demonstram a importância de se conservar o ambiente ripário em prol da proteção das populações de B. devillei. Além disso, o presente estudo é um dos raros registros de associação alimentar do tipo nuclear-seguidor entre peixe...

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Patterns of Spatial Distribution and Microhabitat Use by Syntopic Anuran Species along Permanent Lotic Ecosystems in the Cerrado of Southeastern Brazil

Cited by 13 publications

References 37 publications

Species distribution and assembly patterns of frog larvae in rainforest streams of Madagascar

Species distribution and assembly patterns of frog larvae in rainforest streams of Madagascar

Spatial and temporal distribution and microhabitat use of aquatic breeding amphibians (Anura) in a seasonally dry tropical forest in Chamela, Mexico

Feeding and social behavior of the piabanha, Brycon devillei (Castelnau, 1855) (Characidae: Bryconinae) in the wild, with a note on following behavior

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