Search

Your search keyword '"Ruas, Danilo S."' showing total 6 results
Start Over Author "Ruas, Danilo S."
6 results on '"Ruas, Danilo S."'

2. Ecological Connectivity for Amphibians Under Climate Change

Author

Campos, Felipe S., Lourenço-de-Moraes, Ricardo, Ruas, Danilo S., Mira-Mendes, Caio V., Franch, Marc, Llorente, Gustavo A., Solé, Mirco, Cabral, Pedro, NOVA Information Management School (NOVA IMS), Information Management Research Center (MagIC) - NOVA Information Management School, and NOVA IMS Research and Development Center (MagIC)

Subjects
Global and Planetary Change, Ecology, Functional corridor, Atlantic Forest, SDG 13 - Climate Action, Anura, Pollution, Dispersal ability, Climate models, SDG 15 - Life on Land
Abstract

Campos, F. S., Lourenço-de-Moraes, R., Ruas, D. S., Mira-Mendes, C. V., Franch, M., Llorente, G. A., ... Cabral, P. (2019). Searching for Networks: Ecological Connectivity for Amphibians Under Climate Change. Environmental Management, 65(1), 46-61. https://doi.org/10.1007/s00267-019-01240-0 Ecological connectivity depends on key elements within the landscape, which can support ecological fluxes, species richness and long-term viability of a biological community. Landscape planning requires clear aims and quantitative approaches to identify which key elements can reinforce the spatial coherence of protected areas design. We aim to explore the probability of the ecological connectivity of forest remnants and amphibian species distributions for current and future climate scenarios across the Central Corridor of the Brazilian Atlantic Forest. Integrating amphibian conservation, climate change and ecological corridors, we design a landscape ranking based on graph and circuit theories. To identify the sensitivity of connected areas to climate-dependent changes, we use the Model for Interdisciplinary Research on Climate by means of simulations for 2080–2100, representing a moderated emission scenario within an optimistic context. Our findings indicate that more than 70% of forest connectivity loss by climate change may drastically reduce amphibian dispersal in this region. We show that high amphibian turnover rates tend to be greater in the north-eastern edges of the corridor across ensembles of forecasts. Our spatial analysis reveals a general pattern of low-conductance areas in landscape surface, yet with some well-connected patches suggesting potential ecological corridors. Atlantic Forest reserves are expected to be less effective in a near future. For improved conservation outcomes, we recommend some landscape paths with low resistance values across space and time. We highlight the importance of maintaining forest remnants in the southern Bahia region by drafting a blueprint for functional biodiversity corridors. authorsversion published

Published
2020

5. Escalated antipredator mechanisms of two neotropical marsupial treefrogs.

Author

Lourenço-de-Moraes, Ricardo, Ferreira, Rodrigo B., Mira-Mendes, Caio V., Zocca, Cassio Z., Medeiros, Tadeu, Ruas, Danilo S., Rebouças, Raoni, Toledo, Luís Felipe, Brodie Jr., Edmund D., and Solé, Mirco

Subjects
ANTIPREDATOR behavior, PREDATION, HYLIDAE, GASTROTHECA, ANIMAL defenses, FORESTS & forestry, BEHAVIOR, AMPHIBIANS
Abstract

The sequence and intensity of antipredator mechanisms may be displayed according to the risk of predation. We tested this hypothesis using two species of marsupial treefrogs from Brazil's Atlantic Forest. We observed Gastrotheca recava and G. megacephala displaying nine antipredator mechanisms and three types of defensive calls. These behaviours were displayed in an escalated sequence from motionless (passive behaviour) to biting (the most aggressive behaviour). This diversified set of antipredator mechanisms may be related to the interaction between predator and prey at the local scale. The escalated sequence of defensive behaviours should be considered in future studies on anuran-predator interaction. [ABSTRACT FROM AUTHOR]

Published
2016

6. Hypsiboas semilineatus prédation on Dendropsophus elegans (Anura: Hylidae) in southern Bahia, Brazil.

Author

MENDES, CAIO V. M., RUAS, DANILO S., and SOLÉ, MIRCO

Subjects
*PREDATION, *AMPHIBIANS, *INGESTION
Abstract

The article discusses the predation of Hypsiboas semilineatus on Dendropsophus elegans in southern Bahia, Brazil. It discusses that amphibians play an important role by ingesting a variety of food items in in trophic chains. It further details regarding Hypsiboas semilineatus, medium-sized hylid frog belonging to the Hypsiboas semilineatus group, inhabits the Atlantic rainforest on the coast of Brazil.

Published
2012

Catalog

Books, media, physical & digital resources
See catalog results