Jader Marinho-Filho

• PhD
• Professor (Full) at University of Brasília

The Dekeyser's nectar bat (Lonchophylla dekeyseri) is a cave roosting bat endemic to the Brazilian Cerrado that is considered endangered according to the IUCN Red List. Even though it is likely highly threatened, there is no current assessment of its conservation status or the conservation of the caves within its distribution. Additionally, a chang...

The relationship between environmental heterogeneity and species diversity has been one of the most studied patterns in ecology. However, some taxa and regions worldwide still lack studies to verify this relationship. Phyllostomidae is the most ecologically diverse family of mammals worldwide, encompassing a great proportion of the species of mamma...

Landscape conversion of natural environments into agriculture and pasture are driving a marked biodiversity decline in the tropics. Consequences of fragmentation might depend upon habitat amount in the landscape, while the quality of remnants can also affect some species. These factors have been poorly studied in relation to different spatial scale...

Species distributions and the mechanisms that produce patterns in the occupation space are recurrent themes in community ecology. Here, we examine beta diversity among assemblages of small mammals in the Cerrado domain of Brazil to partition the effects of turnover and nestedness on species distributions. Our objective was to evaluate whether balan...

Species distributions and the mechanisms that produce patterns in the occupation space are recurrent themes in community ecology. Here, we examine beta diversity among assemblages of small mammals in the Cerrado domain of Brazil to partition the effects of turnover and nestedness on species distributions. Our objective was to evaluate whether balan...

We aimed to assess the potential impact of climate change on the geographic distribution of areas holding suitable climatic conditions for the presence of Lycalopex vetulus, and to discuss the implications of such distribution for the conservation of the species. We employed correlative modeling analyses to infer the geographic distribution of clim...

Beginning in November 2018, Brazilian legislation regulating access to genetic heritage and associated traditional knowledge will cause a bureaucratic collapse of Biodiversity research in Brazil. Law number 13.123/2015 and Decree 8772/2016 impose severe barriers to basic and applied research, and to international cooperation by introducing mandator...

Phyllomys is the most species-rich genus among spiny tree rats of the family Echimyidae and includes members widely distributed throughout the Atlantic Forest of South America. Among recognized species recovered in previous studies, 4 lineages are unnamed and their taxonomic distinctness needs further investigation. Biogeographic analyses recovered...

Taxonomy is a scientific discipline that has provided the universal naming and classification system of biodiversity for centuries and continues effectively to accommodate new knowledge. A recent publication by Garnett and Christidis [1] expressed concerns regarding the difficulty that taxonomic changes represent for conservation efforts and propos...

Activity patterns reflect adaptations to local biological and physical conditions. We estimated the activity patterns of 3 mesocarnivore species in a semiarid environment in northeastern Brazil: the ocelot (Leopardus pardalis), crab-eating fox (Cerdocyon thous), and oncilla (Leopardus tigrinus). We compared the overlap of daily activity among these...

Military training areas (MTA) are increasingly recognized as sites that harbor high levels of biodiversity, including large numbers of endangered species, yet their conservation value has not been rigorously assessed. Here, we studied the species richness and composition of medium- and large-sized mammals in Formosa MTA, a Brazilian military area,...

Population dynamics of small mammals can be strongly influenced by seasonality. Long-term studies are important in detecting population size variation in small mammals, and understanding the causes of that variation. We performed a six-year study to investigate fluctuations in population parameters (reproduction, recruitment, survival rates, abunda...

We undertook a comprehensive, critical review of literature concerning the distribution, conservation status, and taxonomy of species of mammals endemic to the Cerrado and the Caatinga, the two largest biomes of the South American Dry-Diagonal. We present species accounts and lists of species, which we built with criteria that, in our opinion, yiel...

Ocelots play a key role in ecological communities as mesopredators affecting the lower trophic level and other mesopredators. They show great variability in ecological traits across their distribution, but knowledge of this species is missing in several regions where it occurs. Here, we present the first study of ocelot in the Brazilian semiarid of...

Carnivores and their prey occurring at the extremes of their ecological niches face particular constraints in terms of habitat suitability (HS). We combined the use of camera traps and Ecological Niche Factor Analysis (ENFA) to calculate HS for jaguars (Panthera onca), pumas (Puma concolor), and 4 prey species (3-banded armadillos, Tolypeutes trici...

The question whether taxonomic descriptions naming new animal species without type specimen(s) deposited in collections should be accepted for publication by scientific journals and allowed by the Code has already been discussed in Zootaxa (Dubois & Nemésio 2007; Donegan 2008, 2009; Nemésio 2009a–b; Dubois 2009; Gentile & Snell 2009; Minelli 2009;...

This plot is not part of the published stance but derives from it. The plot shows the number of authors by geographic region (courtesy of Dr. Diego Astua).

Space use by animals has been studied for decades; however, gaps still exist in the understanding of how it is affected by biological and environmental factors. The aim of this study was to determine how biological traits, population parameters and seasonal variations affect the use of space by rodents in a tropical savannah environment. This study...

Species distribution is a key concept in ecology. Understanding the rules and factors that affect these patterns is essential to devise conservation programs not only for singular species, but in the case of carnivores, for the entire ecosystem. Many studies addressed carnivore spatial distributions identifying different variables affecting their o...

Abstract: At least 251 mammal species are recorded for the Brazilan cerrado, which, therefore, is the third richest Brazilian biome. Most mammal surveys in Brazilian cerrado result from studies performed opportunistically and in short time periods. The aims of the present study were (1) provide a checklist for the mammalian fauna based on a five-ye...

In this study, we characterized the activity patterns and estimated the activity overlap between two armadillo species (Dasypus novemcinctus and Euphractus sexcinctus) in the Pantanal wetlands of Brazil. We report the effect of daily mean ambient temperature on activity onset and duration of these armadillos. We captured seven yellow armadillos and...

Wiedomys Hershkovitz, 1959 is a rodent genus endemic of Brazilian semiarid with two recognized species: W. pyrrhorhinus (Wied-Neuwied, 1821) and W. cerradensis Gonçalves, Almeida and Bonvicino, 2005. Wiedomys pyrrhorhinus occurs in the Caatinga biome of the states of Alagoas, Bahia, Ceará, Minas Gerais, Piauí, Paraíba, and Pernambuco, with its type...

Domestic dogs are reservoirs for many infectious diseases and may represent a potential source of infection for wild canid populations. A serologic investigation of antibodies to Toxoplasma gondii, Neospora caninum, Brucella abortus, and Leptospira spp. was conducted on three maned wolves (Chrysocyon brachyurus) and seven crab-eating foxes (Cerdocy...

White-lipped peccaries (Tayassu pecari) are important seed predators and dispersers throughout the Neotropics. Because they occur in groups as large as 300 individuals, they need large areas to persist. We investigated home-range size and overlap of 13 groups using radiotelemetry data from 3 years of monitoring in the Emas National Park and surroun...

The planning of protected areas take into consideration the current distributions of target species, disregarding possible future range shifts under climate change. This study tested potential shifts in the distribution of three xenarthran species (the giant anteater, Myrmecophaga tridactyla; the giant armadillo, Priodontes maximus; and the three-b...

The impact of deforestation and fragmentation upon ecologically important and poorly known groups is currently an important issue for conservation biology. Herein we describe xenathran communities across the Brazilian Cerrado and study the effects of habitat fragmentation on occupancy and activity patterns on these assemblages. Our hypothesis was t...

BIC differences for various giant armadillo, giant anteater, maned wolf, jaguar, and puma resource selection models. (DOCX)

Conserving animals beyond protected areas is critical because even the largest reserves may be too small to maintain viable populations for many wide-ranging species. Identification of landscape features that will promote persistence of a diverse array of species is a high priority, particularly, for protected areas that reside in regions of otherw...

We analysed microhabitat use by the rodents Calomys tener, Necromys lasiurus and Thalpomys lasiotis and the factors that may influence their abundances in “murundu” grasslands (open fields with termite mounds) at Aguas Emendadas Ecological Station, Planaltina, Federal District, Brazil. Two grids with 100 sampling points were established and traps w...

A review of the distribution, morphometrics, and habit of Owl's spiny rat Carterodon sulcidens (Lund, 1841) (Rodentia: Echimyidae). Zoological Studies 50(5): 566-576. The genus Carterodon Waterhouse, 1848 contains a single species, C. sulcidens (Lund, 1841), restricted to Neotropical savannas and known from a few sites in central Brazil, where it i...

Hairy-eared cerrado mouse Thalpomys lasiotis is an endemic species of the cerrado biome. It can be found in open habitats, but its distribution is patchy and population numbers are unknown. In this paper, we describe, for the first time, aspects related to the ecology and natural history of T. lasiotis, detailing demographic parameters such as popu...

Maned wolves are large canids currently considered vulnerable to extinction due to habitat loss. They are still commonly found within the urban mesh inside the Brazilian Federal District (Distrito Federal--DF), in nearby Protected Areas (PAs), and in surrounding farms. We evaluated the genetic diversity of maned wolves in three PAs of the DF, using...

The Valley of the Paranã River is located in the states Tocantins and Goiás, Brazil. This region is inserted in the transitional area between the Cerrado, a Neotropical Savanna Hotspot, and the Amazon and Caatinga biomes. Transitional zones are alleged to be characterized by high species richness due to the overlap of species distributional ranges,...

The distribution, natural history, and morphology of Kerodon acrobata were updated based on nine new collected specimens totalling 14 known specimens. Two new localities were added to the distribution range of this species. Data on habitat use indicated that the presence of this rodent is associated to the cerrado sensu stricto and seasonally dry t...

Most protected areas are too small to sustain populations of wide-ranging mammals; thus, identification and conservation of high-quality habitat for those animals outside parks is often a high priority, particularly for regions where extensive land conversion is occurring. This is the case in the vicinity of Emas National Park, a small protected ar...

Tick species parasitizing yellow armadillo, Euphractus sexcinctus, were recorded from October 2006 to October 2007 in Pantanal. A total of 89 ticks were collected from 23 yellow armadillos. Most ticks (n=50) were identified as Amblyomma cajennense (Fabricius) (32 males and 18 females). The only other species found was Amblyomma parvum (Aragão) (thr...

We report the first estimate of jaguar density in the semi-arid caatinga biome of north-eastern Brazil. During August–October 2007, in the Serra da Capivara National Park, we used camera traps to identify and count jaguars. Jaguar abundance and density were calculated using mark-recapture models. In a sampling effort of 1,249 camera-trap-nights we...

A total of 31 yellow armadillos, Euphractus sexcinctus, were captured in the Pantanal of Nhecolândia, Brazil, between October 2006 and October 2007. The individuals were anesthetized and measured. This study presents data about body mass, number of moveable bands, head length and width, head and body length, tail length and circumference, chest cir...

Edge effects are a well-known result of habitat fragmentation. However, little has been published on fragmentation, isolation and the intrusive influence from the surrounding matrix at the landscape level. The objectives of the present study are to evaluate the presence of dogs in the Brasília National Park (BNP) in relation to habitat type and the...

Three forested habitats at Pantanal of Poconé (Mato Grosso) were sampled during 17 months, with an effort of 38,635 trap-nights, resulting in a 6.3% of trapping success. Six marsupial and eight rodent species were recorded. Natural history, reproductive biology, behavior and habitat use are described for six marsupial species from the Pantanal floo...

Proceedings of the 5^th European Congress of Mammalogy - Siena, Italy, 21-26 September 2007 Part III [pp. 51-186] -- Rodents & Lagomorphs https://doi.org/10.4404/hystrix-18.0-4381

Até recentemente, a distribuição de Dactylomys dactylinus foi considerada restrita a hábitats florestais da Amazônia ocidental até o leste do rio Xingu no Brasil. Indivíduos de D. dactylinus foram resgatados em janeiro de 1997 durante o enchimento da represa hidroelétrica de Serra da Mesa, no Brasil central. Este registro estende o limite sul de di...