River of Life: Spring has sprung as new Sheffield Wetland Corridor already sees results!
he project, running from 2018-2020, created 43 breeding ponds and made numerous wildlife scrapes, hibernation spaces for reptiles and amphibians and provided foraging habitats and breeding areas for Willow Tits and Harvest Mice. It also 'linked' local and national businesses, encouraged collaborative partnerships with conservation bodies, land-owners and charities, and involved skill-sharing and education with local schools and the community on the importance of wildlife corridors and those species mentioned. Leer más.
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- Publicado: 01 Mayo 2020
An integrative demographic study of the Iberian painted frog (Discoglossus galganoi): inter‐annual variation in the effective to census population size ratio, with insights on mating system and breeding success
We documented a >50% decrease in the estimated number of adults of both sexes between the breeding seasons of 2018 and 2019, probably associated with reduced rainfall in the latter. Estimates of Nb and the Nb/Na ratio were low in both seasons, with a 20–30% decrease in Nb and a 47% increase in the Nb/Na ratio in 2019. Based on the reconstruction of pedigrees from larval and adult genotypes, we provide the first genetic evidence of polygamy in males and females of D. galganoi and the first estimates of breeding success in the species. Leer más.
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- Publicado: 01 Mayo 2020
Climatic refugia boosted allopatric diversification in Western Mediterranean vipers
In the Western Mediterranean biodiversity hotspot, palaeo‐tectonic and palaeo‐climatic factors drove diversification since the Miocene. Comparisons among patterns of diversification, haplotype diversity, and climatic stability suggest that southern Iberian and Italian peninsulas, and north‐western African mountains acted as refugia since the Pliocene, while some northern areas favoured population persistence during the Pleistocene. Climate adaptation likely played a secondary role in the diversification of some lineages. Leer más.
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- Publicado: 01 Mayo 2020
Lagartijas de los Aquilianos
Video sobre las lagartijas de esa interesante zona. Podéis visualizar el video en el siguiente enlace.
- Detalles
- Publicado: 01 Mayo 2020
EL TRITÓN QUE USA BACTERIAS PARA CONVERTIRSE EN PRESA MORTAL
El título del animal más venenoso en la Tierra generalmente se le da a la mortal rana dorada de Columbia, con una pulgada de largo a veces está empapada en suficiente veneno para matar a diez hombres adultos. Pero un tritón le da batalla a la arma mortal dorada. La siguiente criatura es mucho menos exótica pero es capaz de producir suficiente veneno para matar hasta 20 personas: el modesto tritón de piel áspera (Taricha granulosa), con su ardiente vientre naranja, ubicado en el noroeste del Pacífico de América del Norte. Leer más.
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- Publicado: 01 Mayo 2020
Discovery of the oldest South American fossil lizard illustrates the cosmopolitanism of early South American squamates
The new species represents the first occurrence of the extinct squamate family Paramacellodidae in South America and displays an unusual limb morphology. Finally, our findings suggest early South American squamates were part of a much broader distribution of their respective clades, in sharp contrast to the high levels of endemicity characteristic of modern faunas. Leer más.
- Detalles
- Publicado: 30 Abril 2020