A new species of Hyloscirtus, belonging to the H. bogotensis Group, is described from Venezuelan and Colombian slopes Sierra de Perijá. The can be readily distinguished its congeners by combination following characters: mental gland present, disc-shaped small; ulnar, outer, inner tarsal folds present; calcar tubercle absent; whitish stripes on external border upper eyelids supratympanic folds, longitudinally mid-dorsum, supracloacal fold, outer ulnar also dorsal internal surface shanks. We...

A new species of Bolitoglossa (Plethodontidae) is described from Andean cloud forests on the western slope Serranía de los Yariguíes in Cordillera Oriental Colombia. This distinguished all other adspersa group by differences adult body size, morphometric proportions, and tooth counts. The validity also supported molecular analyses. increases number salamander Colombia to 23 highlights Colombia, with 11 species, as region highest diversity South America.

We describe a new species of diurnal gecko, Gonatodes castanae sp. nov. from the foothills Serranía de San Lucas, municipality Norosí, Department Bolívar, Colombia. The differs all in genus by combination following characters: moderate size, subcaudal scale pattern type B (1’1’1’’), typically two rows lateral scales on digits, and aspects color males (dorsum, flanks, limbs tail with white ocelli black background) females brown to reticulations withe spots greenish-yellow background)....

Abstract Aim Species living on steep environmental gradients are expected to be especially sensitive global climate change, but little is known about the factors influencing their responses contemporary warming. Here, we investigate influence of biogeography three alpine species with overlapping ranges. Location Te Waipounamu (South Island) Aotearoa–New Zealand. Taxon Endemic adapted Catantopinae grasshoppers. Methods We used niche modelling estimate and project potential focal under past...

Abstract Although biodiversity gradients have been widely documented, the factors governing broad‐scale patterns in species richness are still a source of intense debate and interest ecology, evolution, conservation biology. Here, we tested whether spatial hypotheses (species–area effect, topographic heterogeneity, mid‐domain null model, latitudinal effect) explain pattern diversity observed along altitudinal gradient Andean rain frogs genus Pristimantis . We compiled gamma‐diversity...

The aerial spraying of glyphosate formulations in Colombia to eradicate illegal crops has generated great concern about its possible impact on nontarget organisms, particularly amphibians. This study evaluated the toxic, cytotoxic, and genotoxic effects a formulation (Roundup®SL–Cosmoflux®411F) direct‐developing frog Eleutherodactylus johnstonei by estimating median lethal application rate (LC 50 ), hemolytic (HD extent DNA damage using vitro vivo Comet assays. Toxicity results indicated...

Wildlife-vehicle collisions are acknowledged as the leading source of vertebrate mortality worldwide. Here, we examined spatio-temporal patterns mammal road in three routes on a fragmented landscape Middle Magdalena Valley, Santander department, Colombia. We identified species affected by mortality, estimated roadkill rates for each segment, and hotspots related to multi-scale structural connectivity. During an eigth-month period, recorded total 152 roadkills 12 native species. The roads...

Abstract Aim Species responses to global warming will depend on intraspecific diversity, yet studies of factors governing biogeographic patterns variability are scarce. Here, we investigate the evolutionary processes underlying genetic and phenotypic diversity in flightless cold‐adapted grasshopper Sigaus piliferus , project its suitable space time. Location Te Ika‐a‐Māui Aotearoa—North Island New Zealand. Methods We used mitochondrial sequences population connectivity demographic trends...

Over the last century, morphogenesis of vertebral column has been considered as a highly conserved process among anurans. This statement is based on study few metamorphic taxa, ignoring role developmental mechanisms underlying evolution specialized life-histories. Direct development in anurans regarded evolutionarily derived and involves recapitulation repatterning at different levels all amphibian taxa studied so far. Herein, we analyze direct-developing frog Eleutherodactylus johnstonei,...

Body size is perhaps the most fundamental property of an organism and central to ecology at multiple scales, yet obtaining accurate estimates ecologically meaningful metrics, such as body mass, often impractical. Allometric scaling mass-to-mass relationships have been used alternative approaches model expected mass many species. However, models for predicting in key herbivorous insects, grasshoppers, exist only family level. To address this data gap, we collected empirical (hind femur length...

Predicting distributions of rare species: the case false coral snake Rhinobothryum bovallii (Serpentes: Colubridae). Typically, lack enough high-quality occurrence data makes it diffcult to defne geographic distribution species. However, species models provide a powerful tool for biodiversity management, including efforts predict Herein, new and historical are used model False Tree Coral snake, bovallii. The prediction map reveals disjunct this species, from Central American Isthmus...

This report extends the distribution range of Amphisbaena medemi to southeast foothills Sierra Nevada de Santa Marta and western Serranía del Perijá in La Guajira department, Colombia. These records offer a more detailed picture species’ distributional along Caribbean region Colombia represent first observation species transitional zone between dry moist tropical forest.

In Colombia, detailed knowledge of the geographic distribution gymnophthalmid lizards is scarce. This paper presents first confirmed records Leposoma rugiceps and provides additional Gymnophthalmus speciosus from Department La Guajira, in Colombian Caribbean Region. These extend geographical both species support their wide lowlands north Colombia. Furthermore, we provide an updated map with known occurrences these

We report an aberrant, blue-colored, Orange-chinned Parakeet from a population inhabiting urban area in Colombia. This is the first documented record of wild-blue mutant for this species through its natural distributional range. Our observations suggest that mutation occurs at very low frequency and does not appear to display any selective advantage could drive change.

A new salamander species of the genus Bolitoglossa is here described from cloud forests western slopes Cordillera Oriental Colombia, in Cundinamarca department. The most salient characters this are its numerous maxillary and vomerine teeth, moderate webbing on hands feet, short robust tail, chromatic variation. Based molecular analyses assigned to adspersa group status established as sister B.adspersa, with which it was previously confused. Lastly, distribution, natural history, conservation...

Pristimantis yukpa and P. rivasi are two rain frogs recently described from Sierra de Perijá in Venezuela. Although these species have been expected to occur the Colombian side of this mountain range, no evidence their presence was available date. Herein, I report for first time Serranía Colombia. Updated maps geographical distribution shown.

The Neotropical frog genus Cryptobatrachus includes six currently recognized species distributed throughout the northern Andes in Colombia and Venezuela. conditus, C. pedroruizi, remotus were described from Colombian Venezuelan slopes of Serrana del Perij. Due to great morphological similarity among these species, we re-assess their taxonomic status based on molecular data types, topotypes, specimens localities referred original descriptions species. Morphometric comparisons showed that all...

The current work provides the first confirmed record of Ninia atrata in northern foothills Sierra Nevada de Santa Marta, La Guajira department, Colombia. This extends Colombian known species’ distribution ca. 320 km NW from northernmost and represents observation species Caribbean Region

The lack of basic natural history and distributional data represents a challenge for the conservation rare endemic amphibian species. This is case “Centrolene” acanthidiocephalum, poorly known glassfrog to Cordillera Oriental Colombian Andes. species was formally described in late 1980s no records have been reported over last quarter century. Therefore, little about its boundaries, morphological variation, history, evolutionary relationships. Here we report finding population...

Understanding how species persist in urban landscapes can provide insights into the fate of biodiversityaffected by rapid and unplanned urbanization. While ecological conservation implications urbanization havebeen reasonably well studied for temperate species, relatively little is known those tropical latitudes, especiallyNeotropical lizards. We investigated life history, habitat use, reproductive seasonality Green Iguanas (Iguanaiguana) inhabiting an area Colombia. Our analysis age...