Bruno Cid

• PhD
• Researcher at Federal University of Rio de Janeiro

Activity range ‐ the amount of time spent active per day ‐ is a fundamental aspect contributing to the optimization process by which animals achieve energetic balance. Based on their size and the nature of their diet, theoretical expectations are that larger carnivores need more time active to fulfil their energetic needs than do smaller ones and a...

The loss or reduction of animal populations and consequent extinction of ecological interactions in Neotropical forests demand urgent conservation initiatives to reverse these trends. One of the rainforests with the highest levels of mammal defaunation is the Brazilian Atlantic Forest. Local mammalian extinctions in the biome were evaluated to set...

Time is one of the three fundamental dimensions to characterize a species niche, being the circadian rhythm a feature present in all living beings. Thus, activity time and temporal strategy are important components understanding animal ecology and evolution. The objectives of the present thesis are: (1) to contribute for the improvement of activity...

Genes et al. 2 Credit of ecological interactions: a new conceptual framework to support 3 conservation in a defaunated world 4 5 Appendix 1-modelling procedures. 6 7 The population expansion is represented by the increase of square areas within a 8 square virtual landscape (Fig. A1.A). We chose a square growth representation in 9 order to cover ent...

As defaunation spreads through the world, there is an urgent need for restoring ecological interactions, thus assuring ecosystem processes. Here, we define the new concept of credit of ecological interactions, as the number of interactions that can be restored in a focal area by species colonization or reintroduction. We also define rewiring time,...

Usar radiotelemetria como referência para calibrar estimativas de tamanho de área de vida obtidas por armadilhas fotográficas, para que essa última técnica possa ser aplicada isoladamente em futuros estudos.

Daily activity patterns reflect interactions between circadian mechanisms and environmental stimuli. Among these stimuli, temperature can be an important factor affecting activity budgets. To sample the agouti ( Dasyprocta azarae ), a systematic camera-trap grid was established with 50 independent sampling sites. A circular kernel function was used...

Reintroduction is an increasingly important tool to restore local extinctions and ecological interactions. Evaluating the success of reintroduction projects allows conservationists to learn from previous experience. Here we report on the reintroduction of agoutis, Dasyprocta leporina, to a Brazilian Atlantic Forest reserve in order to (1) determine...

The consumption of the carrion of a tapiti by a reintroduced female Dasyprocta leporina was observed in the wild. Herein, besides describing this event, we reviewed other evidence of vertebrate consumption by agoutis. Most of the studies describing this behaviour have been carried out in captivity. The preyed animals included birds and small rodent...

22 | ciÊnciahoje | 304 | vOL. 51 ciÊnciahoje | 304 | junhO 2013 | 23 E C O L O G I A Alguns dos maiores problemas ambientais da atualidade são as extinções, sejam de espécies ou populações, e a conse-quente perda de interações ecológicas. Para diminuir os impactos do desaparecimento de populações de animais em áreas específi cas, a reintrodução vem...

Resource availability can influence animal movement causing changes in home-range size and arrangement between seasons. We investigated the influence of acuri palm (Attalea phalerata) on the occupancy of agouti Dasyprocta azare during both the dry and rainy seasons, as well as the abandonment probabilities in the transition between seasons in the B...

Reintroduction has been recognized as a powerful conservation tool, but in order to ensure its success, animal monitoring is highly recommended. One way to monitor released animals is to put radiotelemetry collars on them. These devices, however, can harm the subjects, causing serious wounds. Our objectives in this work were to describe the injurie...

Physical environment of streams present many challenging factors to the organisms living under its influence. Water speed, one of the most important factors affecting such environments, has local influence on substrata, temperature, and oxygen levels. It acts determining species distributions and morphological and behavioral adaptations of organism...