Results 61 to 70 of about 2,292 (215)

Repulsion from chemical cues in Bufo marinus (Cane toad) tadpoles, May 2009 [PDF]

open access: yes, 2009
Predator-prey relationships have been studied relentlessly throughout all different taxa and systems. Larval anurans use the mode of chemosensory to detect and avoid predation.
Kolehmainen, Brittany
core  

Resting respiratory behavior in minimally instrumented toads - effects of very long apneas on blood gases and pH

open access: yesBrazilian Journal of Biology, 2003
Resting respiratory behavior of Bufo marinus in minimally instrumented toads is described for a period of 24 hours in which the animals are left undisturbed.
Coelho F. C., Smatresk N. J.
doaj  

Dynamic environments generate geographic fluctuations in population structure of an inland shorebird

open access: yesEcosphere, Volume 16, Issue 6, June 2025.
Abstract Species distributions depend on fine‐scale ecological processes and population growth trajectories and are influenced by climate and weather changes. However, the characterization of inter‐population dynamics underlying the geographic distributions of migratory organisms remains challenging.
Andrea Contina   +6 more
wiley   +1 more source

Four new species of Oswaldocruzia (Nematoda: Trichostrongylina, Molineoidea) Parasitizing amphibians and lizards from Ecuador

open access: yesMemorias do Instituto Oswaldo Cruz, 1996
Description of four new species of Oswaldocruzia parasitizing Iguanidae and Leptodactylidae from Ecuador, demonstrate that they are morphologically close to each other.
Badreddine Ben Slimane   +1 more
doaj   +1 more source

prioriactions: Multi‐action management planning in R

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 6, Page 1028-1039, June 2025.
Abstract Designing effective conservation strategies requires deciding not only where to locate conservation actions (i.e. which territorial units should be priortized), but also which type actions should be deployed. For most of conservation planning contexts, deciding where and what to do usually yields a complex and computationally challenging ...
José Salgado‐Rojas   +2 more
wiley   +1 more source

Membrane properties of Ranvier nodes from South American toads frogs (Bufo marinus ictericus and Leptodactylus ocellatus) [PDF]

open access: yes, 1973
Estudaram-se propriedades eletrofisiológicas de membranas excitáveis em algusn anfíbios do Brasil. O presente trabalho refere-se aos resultados obtidos em nódulos de Ranvier de fibras motoras e sensoriais isoladas de Bufo marinus ictericus e ...
R. Stampfli   +5 more
core   +1 more source

Population Estimate and Spatial Distribution of Capybaras in Lake Paranoá, Brasília, Brazil

open access: yesBiotropica, Volume 57, Issue 3, May 2025.
Understanding the dynamics of capybara populations living in urban environments is relevant, especially given the conflicts observed between the species and humans in these environments. Here, we investigated the hypothesis of overpopulation of the capybara in Lago Paranoá, a lake in a large neotropical city, Brasília, Brazil.
Eduardo Guimarães Santos   +5 more
wiley   +1 more source

Nitric Oxide Synthase Immunoactivity and NADPH Diaphorase Enzyme Activity in Neurons of the Gastrointestinal Tract of the Toad, Bufo marinus. [PDF]

open access: yes, 1992
Nitric Oxide Synthase Immunoactivity and NADPH Diaphorase Enzyme Activity in Neurons of the Gastrointestinal Tract of the Toad, Bufo ...
HM YOUNG (19471075)   +3 more
core  

Population Genetics Meets Ecology: A Guide to Individual‐Based Simulations in Continuous Landscapes

open access: yesEcology and Evolution, Volume 15, Issue 4, April 2025.
This paper aims to be a practical guide to spatial simulation, helping researchers to implement realistic and efficient spatial, individual‐based simulations and avoid common pitfalls. We explore how mating, reproduction, density‐dependent feedback, dispersal, spatial and temporal heterogeneity, and natural selection affect population dynamics and ...
Elizabeth T. Chevy   +11 more
wiley   +1 more source

Innervation of the large arteries and heart of the toad (Bufo marinus) by adrenergic and peptide-containing neurons [PDF]

open access: yes, 1986
Innervation of the large arteries and heart of the toad (Bufo marinus) by adrenergic and peptide-containing ...
R Murphy (7771736)   +5 more
core  

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