Marcelo Lopes Rheingantz

Marcelo Lopes Rheingantz
Federal University of Rio de Janeiro | UFRJ

DSc

About

27
Publications
12,770
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272
Citations
Additional affiliations
January 2008 - present
Federal University of Rio de Janeiro
Position
  • Biologist
Education
April 2009 - March 2013
August 2004 - July 2006
April 1999 - March 2003

Publications

Publications (27)
Article
Understanding a species' occurrence requirements is essential for its conservation, and species distribution models (SDMs) are a powerful tool for this purpose. Here we estimated a SDM based on actual distribution information, in relation to climatic, hydrological, human population, and vegetation data sets, to understand the ecological requirement...
Article
Circadian use of time is an important, but often neglected, part of an animal's niche. We compared the activity patterns of the Neotropical otter Lontra longicaudis in two different areas in Brazil using camera traps placed at the entrance of holts. We obtained 58 independent photos in the Atlantic Forest (273 camera trap-days) and 46 photos in Pan...
Article
Full-text available
The Neotropical otter Lontra longicaudis is a widespread semiaquatic carnivore living in a wide variety of environments in both fresh-water and salt-water ecosystems. We summarise the current knowledge on distribution, ecology, behaviour, evolution and conservation status of the species, and highlight the main threats that have been affecting it as...
Article
Full-text available
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...
Article
Giant otters Pteronura brasiliensis are semiaquatic mammals that mainly eat fish, the abundance of which is affected by seasonal flooding and habitat structure. The piscivorous habits of giant otters lead to negative human perception and conflicts with fisheries. We compared giant otter feeding habits between seasons and habitats in the Southern Pa...
Article
Full-text available
Recognizing the imperative to evaluate species recovery and conservation impact, in 2012 the International Union for Conservation of Nature (IUCN) called for development of a "Green List of Species" (now the IUCN Green Status of Species). A draft Green Status framework for assessing species' progress toward recovery, published in 2018, proposed 2 s...
Article
Full-text available
Recognizing the imperative to evaluate species recovery and conservation impact, in 2012 the International Union for Conservation of Nature (IUCN) called for development of a "Green List of Species" (now the IUCN Green Status of Species). A draft Green Status framework for assessing species' progress toward recovery, published in 2018, proposed 2 s...
Chapter
Full-text available
Report on the Brown howler monkeys (Alouatta guariba) reintroduction initiative in Tijuca National Park, Rio de Janeiro, Brazil. The species had been extinct for decades and the reintroduction process is still in its initial stages, but it does register some indicators of success and some implementation difficulties.
Article
Full-text available
Scent marking behavior in mammals is related with both inter and intra-specific communication. Several otter species are known to communicate via scent marking, but a couple scent marking has not been documented in the Neotropical Otter (Lontra longicaudis). We obtained field observations of scent marking behavior in Neotropical Otters over two yea...
Chapter
Full-text available
With a wide distribution across eastern South America, the Brazilian Atlantic Forest is a mosaic of lowland and montane vegetation types, such as evergreen forest, semideciduous and deciduous forest, mixed forest (e.g., Araucaria), mangroves, and restingas. It has long been recognized as having one of the most diversified biotas on the planet, with...
Article
The IUCN Red List Guidelines are an important resource to guide the definition of the global, national and even regional conservation status of our biodiversity. However, as with all models, if the assumptions underlying the criteria are not valid, or the guidelines for applying the criteria are not followed correctly, then misleading results will...
Article
Full-text available
The use of radio-telemetry provides crucial information for evaluating population dynamics and for primate conservation. However, tracking methods must be balanced in their risks, costs and benefits. We conducted 12 trials; testing three different customized devices on reintroduced brown howler monkeys and compared the outcomes in terms of animal w...
Chapter
here, we explain the behaviour of food acquisiton by mustelids, the variation in their feeding habits and the differences in the diet between sex, age and size.
Article
Full-text available
We evaluated the biogeographic factors that influence composition and diversity of the Neotropical otter diet. We also tested whether Lontra longicaudis selected fish in its diet per their availability. We collected data from 41 studies, covering most of the otter’s distribution, 32 of which had prey identified to family level. Fish was the main pr...
Article
Full-text available
ABSTRACT We examined the evidence supporting the hypothesis that jaguars (Panthera onca) have morphological and behavioural adaptations to facilitate reptile predation. Jaguars’ head and bite features show adaptations to durophagy (consumption of hard-integumented prey) that are very unusual within the genus Panthera. These include: thick canines,...
Article
Full-text available
Despite there being several studies focusing on feeding habits of Lontra longicaudis, few studies aimed to evaluate its prey selectivity and none of them considered prey mobility. In this study, we report both its feeding flexibility and specialist feeding behaviour between two parts of Mambucaba River, Southeastern Brazil. We observed that they fe...
Article
Full-text available
The diet of the Neotropical otter Lontra longicaudis (Olfers, 1818) is one of the best known aspects of its biology throughout its distribution range. However, most dietary studies have been undertaken during short time periods, making it difficult to identify temporal patterns in the feeding behavior of the species. The present study aimed to desc...
Article
Full-text available
Some species of otters have been much more studied than others. A particular challenge in the management and conservation of otters worldwide is that some of the lesser-known species are also among those being the object of conservation concerns. In this paper, I argue about the importance of producing more scientific knowledge about lesser-known o...

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Projects

Projects (4)
Project
Our goal is to establish a viable population of the functionally extinct in the Atlantic Forest ecoregion yellow-footed tortoise (Chelonoidis denticulatus). Release treatments with different acclimation times and release seasons are being tested in terms of their effect on home range stabilisation and size, and individual's survival.
Project
The aim of this project is to evaluate the healthy and behavior of a population of neotropical otters (Lontra longicaudis) living in an urban area in southern Brasil.