A5001121597- Amphibian and Reptile Biology
- Plant and animal studies
- Species Distribution and Climate Change
- Animal and Plant Science Education
- Lepidoptera: Biology and Taxonomy
- Animal Behavior and Reproduction
- Fish biology, ecology, and behavior
- Ecology and Vegetation Dynamics Studies
- Evolution and Paleontology Studies
- Identification and Quantification in Food
- Genetic diversity and population structure
- Digital Imaging for Blood Diseases
- Bat Biology and Ecology Studies
- Scarabaeidae Beetle Taxonomy and Biogeography
- Insect and Arachnid Ecology and Behavior
- Genomics and Phylogenetic Studies
- Wildlife-Road Interactions and Conservation
- Mosquito-borne diseases and control
- Turtle Biology and Conservation
- Primate Behavior and Ecology
- Wildlife Ecology and Conservation
- Urban and sociocultural dynamics
- Morphological variations and asymmetry
- Ocean Acidification Effects and Responses
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
Museu Paraense Emílio Goeldi
2011-2022
Universidade Federal do Pará
2011
Ministério da Ciência e Tecnologia
2003
University of Oklahoma
2002
Oklahoma Biological Survey
2002
Los Alamos National Laboratory
2002
Natural History Museum Rotterdam
2000
Biodiversity loss from deforestation may be partly offset by the expansion of secondary forests and plantation forestry in tropics. However, our current knowledge value these habitats for biodiversity conservation is limited to very few taxa, many studies are severely confounded methodological shortcomings. We examined tropical primary, secondary, 15 taxonomic groups using a robust replicated sample design that minimized edge effects. Different taxa varied markedly their response patterns...
Abstract The identification of high‐performance indicator taxa that combine practical feasibility and ecological value requires an understanding the costs benefits surveying different taxa. We present a generic novel framework for identifying such taxa, illustrate our approach using large‐scale assessment 14 higher across three forest types in Brazilian Amazon, estimating both standardized survey cost biodiversity each taxon. Survey varied by orders magnitude, dung beetles birds were...
Abstract: Plantation forests and second‐growth are becoming dominant components of many tropical forest landscapes. Yet there is little information available concerning the consequences different forestry options for biodiversity conservation in tropics. We sampled leaf‐litter herpetofauna primary, secondary, Eucalyptus plantation Jari River area northeastern Brazilian Amazonia. used four complementary sampling techniques, combined samples from 2 consecutive years, collected 1739 amphibians...
To improve our understanding of the distribution and abundance amphibians reptiles in tropical forests, herpetologists need to understand relative effectiveness different sampling techniques. However, current studies are biased by a focus on certain methods, species groups, or geographic regions. address this problem, we conducted first standardized comparison patterns richness, rank-abundance, community structure for both passive active methods study herpetofauna forest landscape. Moreover,...
Abstract Aim Present Amazonian diversity patterns can result from many different mechanisms and, consequently, the factors contributing to divergence across regions and/or taxa may differ. Nevertheless, river‐barrier hypothesis is still widely invoked as a causal process in of species. Here we use model‐based phylogeographic analyses test extent which major rivers act similarly barriers time and space two broadly distributed taxa. Local Amazon rain forest. Taxon The lizard Gonatodes...
Single‐tree harvesting with on‐site lumber production produces gaps in Amazonian forest canopy that are structurally different from natural treefall gaps. Harvest much more open, and there is neither leaf litter nor partial shading as treefalls, so these anthropogenic receive intense sunlight. We used HOBO XT temperature light data loggers to measure thermal environments patches. These were combined on lizard activity, activity temperatures, habitat use determine whether human‐made influence...
We discuss the herpetological results of seven expeditions to Guianan part Pará, which resulted in a total 80 species amphibians (77 frogs and three caecilians) 95 reptiles (36 lizards, amphisbaenians, 49 snakes, five chelonians two caiman). report six new science (three frogs, one caecilian, lizard, amphisbaenian), records for Brazil (five caecilian) 23 Pará (13 four snakes). For each we provide comments. Special comment is made about large population toad Atelopus hoogmoedi that seems be...
We summarize thermal-biology data of 69 species Amazonian lizards, including mode thermoregulation and field-active body temperatures (Tb). also provide new on preferred (Tpref), voluntary thermal-tolerance ranges, thermal-performance curves (TPC's) for 27 from nine sites in the Brazilian Amazonia. tested phylogenetic signal pairwise correlations among thermal traits. found that generally categorized as thermoregulators have highest mean values all traits, broader ranges Tb, critical maximum...
One of the most commonly used sampling techniques to capture leaf litter amphibians, lizards and small mammals is a set pitfall traps with drift fences. However, there are still many speculations concerning effectiveness different designs adequate size each trap. To address this problem, we conducted first standardized comparison patterns species richness, rank-abundance, community structure for two trap (I Y format) three bucket sizes (35, 62, 100 L) in Neotropical forest. Results very...
Ecological requirements and environmental conditions can influence diversification across temporal spatial scales. Understanding the role of ecological niche evolution under phylogenetic contexts provides insights on speciation mechanisms possible responses to future climatic change. Large-scale phyloclimatic studies megadiverse Neotropics, where biomes with contrasting vegetation types occur in narrow contact, are rare. We integrate biogeographic data comparative methods, investigate...
The Amazonian lizard Anolis trachyderma was studied at three sites stretching from eastern Ecuador to the central Amazon of Brazil. These lizards occupy low vegetation and leaf litter microhabitats in well-shaded, damp rain forest. Their body temperatures are (27.8 C on average) only slightly higher than corresponding substrate air. They as likely be active cloudy sunny days but usually found shade. diet is varied, dominated volumetrically by grasshoppers-crickets, insect larvae-eggs-pupae,...
Two sphaerodactyline geckos, Gonatodes hasemani and G. humeralis were studied in eastern Rondônia, Brazil, to determine ecological factors allowing coexistence. lives primarily on fallen logs undisturbed forest, whereas tree trunks. Although both species occur most forest patches, is more common within terra firme (never flooded) adjacent rivers. slightly larger body size robust than the arboreal humeralis. Both are active at same time during day, maintain temperatures, frequently found...
The polychrotid lizard Anolis fuscoauratus was studied at six localities in the Ecuadorian and Brazilian Amazon from 1994 to 1999. Throughout Amazon, A. occurs forested habitats, is arboreal on tree trunks, limbs, branches as well vines, has a body temperature (T b ) of 28.7 ± 0.2°C (mean SE) while active, maintains T slightly above ambient temperatures, avoids direct sunlight during most day, feeds primarily combination orthopterans (20.62% by volume), spiders (16.7%), homopterans (10.62%),...
We studied the ecology of four species closely related leaf litter geckos, Coleodactylus amazonicus, C. septentrionalis, Lepidoblepharis xanthostigma, and Pseudogonatodes guianensis in tropical rainforests Brazil Nicaragua. All are found undisturbed forest where mean hourly surface temperatures vary from 23.5–29.1 Surface temperatures, individual amazonicus were found, averaged 27.4 C air 29.9 was smallest L. xanthostigma largest. The latter most different morphologically as well. Tail loss...
We studied the squamate fauna from four sites in southern Amazonia of Brazil. also summarized data on lizard faunas for nine other well-studied areas to make pairwise comparisons among sites. The Biogeographic Similarity Coefficient each pair was calculated and plotted against geographic distance between A Parsimony Analysis Endemicity performed comparing all total 114 species has been recorded sites, which 45 are lizards, three amphisbaenians, 66 snakes. two Xingu Madeira rivers were...
We studied the ecology of Anolis punctatus and transversalis at six localities in Amazon region Ecuador Brazil from 1994–1999. Both lizards are arboreal, about same size (A. slightly larger) but differ some body proportions. is restricted to undisturbed primary forest more so than A. punctatus, both use similar microhabitats. During midday, was not observed, suggesting that individuals may be active near ground time. species thermal conformers although each able maintain Tb higher its perch....
The tropidurid lizard Tropidurus umbra lives on medium-sized trees in lowland tropical forest of the Amazon region. Individuals may be active tree trunks sun or shade, with most activity occurring from 11:00 to 13:00. Body temperatures average 29.1 °C. diet consists nearly exclusively ants and there is no relationship between prey size size. Females reach sexual maturity at 79 mm snout–vent length (SVL) males 78 SVL. Although appears dimorphism SVL, have relatively larger heads than females....
Neusticurus ecpleopus is linearly distributed along forest streams, uses stream banks and associated leaf litter, numerically feeds primarily on fly larvae ants. The most important prey items volumetrically are crickets larvae. juruazensis occurs in litter of damp low but not directly with streams. Fly collembolans the abundant diet orthopterans, centipedes, based volume. Activity patterns body temperatures similar between species, lizards their microenvironments higher than average...
The Anolis chrysolepis species group is distributed across the entire Amazon basin and currently consists of A. bombiceps five subspecies chrysolepis. These lizards are characterized by moderate size, relatively narrow digital pads, a small dewlap that does not reach axilla. We used mitochondrial gene ND2 to estimate phylogenetic relationships among putative taxa previously hypothesized be their close relatives. also assessed congruence between molecular morphological datasets evaluate...
Recently seven specimens of the gecko Lepidodactylus lugubris were collected or observed in Belém, Pará, northern Brazil. This is first vouchered occurrence Brazil a widely dispersed (Pacific area) and invasive species (much Pacific, parts South America southern Central Florida, U.S.A.). In Suriname has already spread into interior. The distribution corrected history its introduction New World reconstructed, with an estimation state invasiveness for each country. Some possible routes are discussed.
We studied the ecology of Anolis nitens tandai at three localities in central and western Amazon Brazil. The lizards were largely restricted to leaf litter microhabitats relatively undisturbed rain forest. Activity occurred throughout day. Body temperatures active averaged 27.7 ± 0.3 C similar air substratum which found. Microhabitats containing slightly warmer than a random set suggesting that selected warm sites within cool forest habitat, but avoidance treefalls suggests do not seek out...