Results 11 to 20 of about 6,433 (218)

Rapid geographic divergence in competitive ability of cane toad larvae (Rhinella marina) during a biological invasion. [PDF]

open access: yesEcology
Abstract Low population densities at the expanding edge of a biological invasion are predicted to reduce intraspecific competition such that invading organisms evolve to prioritize adaptations for rapid rates of population growth and dispersal over those that facilitate success in competitive interactions.
Clarke GS   +3 more
europepmc   +2 more sources

Divergent Selection on Dispersal Targets Chemosensory and Neuronal Genes in Tribolium castaneum. [PDF]

open access: yesMol Ecol
ABSTRACT Dispersal is key to the life history, ecology and evolution of many organisms and important in pest invasiveness. However, the genetic architecture underlying variation in dispersal behaviour remains poorly understood outside of a few model species.
Pointer MD   +5 more
europepmc   +2 more sources

Bile salts of the toad, Bufo marinus: characterization of a new unsaturated higher bile acid, 3 alpha,7 alpha,12 alpha,26-tetrahydroxy-5 beta-cholest-23-en-27-oic acid.

open access: yesJournal of Lipid Research, 1994
The bile salts present in gallbladder bile of the toad, Bufo marinus, were found to consist of a mixture of bile alcohol sulfates and unconjugated bile acids.
M Yoshii   +7 more
doaj   +1 more source

Ants biting amphibians: A review and new observations [PDF]

open access: yes, 2019
Antagonistic interactions between insects and amphibians are the subject of many scientific articles, mostly concerning amphibian predation on insect, but many fewer examples exist of the opposite situation.
Kaczmarski, Mikołaj   +2 more
core   +2 more sources

Estudo sôbre hemoparasitos de Bufo marinus L. da Venezuela: 1. Hemogregarinas - - 2. Uma nova espécie de Toxoplasma

open access: yesMemorias do Instituto Oswaldo Cruz, 1956
Faz-se uma revisão das espécies de Haemogregarina, encontradas, até a presente data, em Bufo marinus L. da região Norte, Leste e Sul da Venezuela,descrevendo-se o ciclo agâmico da Haemogregarina darlingi Leger, 1918, o ciclo esquizogônico da ...
José Vicente Scorza   +2 more
doaj   +1 more source

Locomotor performance of cane toads differs between native-range and invasive populations [PDF]

open access: yesRoyal Society Open Science, 2017
Invasive species provide a robust opportunity to evaluate how animals deal with novel environmental challenges. Shifts in locomotor performance—and thus the ability to disperse—(and especially, the degree to which it is constrained by thermal and hydric ...
Georgia Kosmala   +3 more
doaj   +1 more source

Arboreal frogs, tank bromeliads and disturbed seasonal tropical forest [PDF]

open access: yes, 2003
We investigated the relationship between arboreal frogs, tank bromeliads and landscape transformation in tropical forests of southeastern Campeche, Mexico. We surveyed frogs in six distinct habitats: slash and burn agriculture, seasonally flooded forest (
Augustine, Justine   +3 more
core   +2 more sources

Signal transmission through the dark-adapted retina of the toad (Bufo marinus). Gain, convergence, and signal/noise. [PDF]

open access: yes, 1990
Responses to light were recorded from rods, horizontal cells, and ganglion cells in dark-adapted toad eyecups. Sensitivity was defined as response amplitude per isomerization per rod for dim flashes covering the excitatory receptive field centers.
Copenhagen, David, Hemilä, S, Reuter, T
core   +2 more sources

Biological control in French Guiana, Guadeloupe and Martinique [PDF]

open access: yes, 2020
Several biological control agents have been introduced successfully in Guyana, and / or Guadeloupe and Martinique: three tachinid dipterans and one hymenopteran for control of sugarcane borers, a ladybird and a hymenopteran parasitoid against the pink ...
Ryckewaert, Philippe   +1 more
core   +1 more source

Exportaciones de Rana Castebeiana y Bufo marinus durante el período del 10 de enero de 1994 al 7 de octubre de 1999

open access: yesCiencia y Sociedad, 2001
Se presenta una relación sobre las exportaciones de dos especies de anfibios (Rana catesbeiana y Bufo marinus), emitidas por el Departamento de Vida Silvestre para una período que abarca desde 1994 hasta 1999.
Delsi de los Santos, Ivelisse Figueroa
doaj   +1 more source

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