Results 21 to 30 of about 5,508 (169)

Comparative cytogenetics of nine populations of the Rhinella genus (Anura, Bufonidae) with a highlight on their conservative karyotype

open access: yesGenetics and Molecular Biology
The genus Rhinella is one of the most diverse groups of bufonid toads, currently composed by 93 valid species and naturally distributed throughout different Neotropical ecoregions. Here, we analyze nine Brazilian populations of toads representing species
Daniel Pacheco Bruschi   +8 more
doaj   +1 more source

First record of Rhinella pombali and new records of R. crucifer and R. ornata in the state of Rio de Janeiro, Brazil (Amphibia, Anura, Bufonidae) [PDF]

open access: yesBiotemas, 2009
The group of Rhinella crucifer is composed of five species that are distributed through the Atlantic Forest and adjacent areas. In the state of Rio de Janeiro, two of these species are known: R.
Rafael Cunha Pontes   +2 more
doaj  

Histologia da glândula parotoide de anuros da espécie Rhinella schneideri (Amphibia: Bufonidae)

open access: yesBiotemas, 2015
O estudo histológico da glândula parotoide foi realizado utilizando 10 exemplares (machos e fêmeas) da espécie Rhinella schneideri, capturados manualmente em coletas noturnas no município de Bom Jesus, Piauí.
Juliana Costa Sousa   +4 more
doaj   +1 more source

Rhinella marina_truncus_1000%

open access: yes, 2016
Ready to 3D print full colour WRL file of Rhinella marina truncus ...
Michael Pedersen (227448)   +9 more
core   +1 more source

Rhinella marina_conus_1000%

open access: yes, 2016
Ready to 3D print full colour WRL file of Rhinella marina conus ...
Michael Pedersen (227448)   +4 more
core   +1 more source

Hemogregarine and Rickettsial infection in ticks of toads from northeastern Colombia

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2018
The toads Rhinella spp. are in constant contact with humans and domestic animals and are commonly parasitized by ticks, which are also potential vectors of pathogenic microorganisms, such as apicomplexans and rickettsia.
Andrea Cotes-Perdomo   +2 more
doaj   +1 more source

Interplanetary frontiers: terraforming from an invasion science perspective

open access: yesOikos, EarlyView.
The pursuit of a multi‐planetary existence represents one of humanity's greatest frontiers. If applied justly, it offers an opportunity to extend its civilization's lifespan amid escalating sustainability crises on Earth. One approach increasingly gaining traction is terraforming, a hitherto theoretical ecological and evolutionary experiment revolving ...
Teun Everts   +2 more
wiley   +1 more source

Amplexos interespecíficos entre dos especies simpátricas de sapos Rhinella major y Rhinella marina (Anura: Bufonidae)/ Amplexos interespecíficos entre dos especies simpátricas de sapos Rhinella major y Rhinella marina (Anura: Bufonidae)

open access: yes, 2016
Los amplexos interespecíficos ocurren entre anfibios del mismo género o familia. Se presentan observaciones de amplexos interespecíficos entre Rhinella major y Rhinella marina en una poza temporal en Ilha de Santana, Santana, Amapá, Región Norte de ...
Lobo-Gama, Sonaira   +7 more
core   +1 more source

The Evolution of Male Weapons Is Associated with the Type of Breeding Site in a Clade of Neotropical Frogs

open access: yesIntegrative Zoology, EarlyView.
Male weaponry evolution is often linked to male–male competition, but its relationship with breeding site type remains unclear. Using Leptodactylinae frogs, we found a macroevolutionary correlation between breeding site type and weapon evolution. Also, gains and losses of weapons occurred more frequently in exposed‐breeding sites, an unexpected finding.
Erika M. Santana   +3 more
wiley   +1 more source

Assessing the Presence, Pattern, and Environmental Correlates of Seasonal Skin Thickening in Anurans

open access: yesIntegrative Zoology, EarlyView.
Histological sections, like that of the ventral pectoral skin of Lithobates pipiens, were measured to assess variation in skin thickness throughout the year in three North American anuran species. After correcting for individual body size, we test whether skin thickness changes throughout the year and which factors (environment or life history) explain
Collin S. VanBuren   +3 more
wiley   +1 more source

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