Results 81 to 90 of about 7,067 (245)

Biodiversidade e Sistemas de Produção Orgânica: Recomendações no Caso da Cana-de-Açúcar. [PDF]

open access: yes, 2015
Este trabalho apresenta os principais resultados dessa pesquisa e discute as relações existentes entre os sistemas de produção tropicais e a biodiversidade faunística no caso dessa propriedade rural, dedicada à produção orgânica de cana-de-açúcar ...
MIRANDA, E. E. de, MIRANDA, J. R.
core  

Prevalence and genotyping of Trichomonas infections in wild birds in central Germany [PDF]

open access: yes, 2018
Avian trichomonosis is a widespread disease in columbids and other birds, caused by ingestion of the unicellular flagellate Trichomonas gallinae which proliferate primarily in the upper respiratory tracts.
Fischer, Dominik   +5 more
core   +2 more sources

Overwintering and Resident Birds in Qatar: Explorations With DNA Barcoding

open access: yesEcology and Evolution, Volume 15, Issue 7, July 2025.
We obtained DNA barcodes for 115 birds (34 species, 12 orders) in Qatar, a country with no previous barcode sequence data for wild birds. We provide insights on locally breeding species and overwintering migrants. ABSTRACT Genetic research is unevenly distributed across the globe, with most research done in temperate zones.
Emily Rebecca Alison Cramer   +2 more
wiley   +1 more source

Worldwide patterns in species richness of falconiformes: analytical null models, geometric constraints, and the mid-domain effect Padrões mundiais de riqueza de espécies de Falconiformes: modelos nulos analíticos, restrições geométricas e o efeito do domínio médio

open access: yesBrazilian Journal of Biology, 2004
Recently, the hypothesis that the geographic distribution of species could be influenced by the shape of the domain edges, the so-called Mid-Domain Effect (MDE), has been included as one of the five credible hypotheses for explaining spatial gradients in
T. F. L.V. B. Rangel   +1 more
doaj   +1 more source

Global patterns of colouration complexity in the Paridae: Effects of climate and species characteristics across body regions

open access: yesJournal of Animal Ecology, Volume 94, Issue 7, Page 1461-1473, July 2025.
Variation in colour complexity in the Paridae is linked to climate, climate variability and several biotic factors. The strength of the associations is patch specific. Variables related to resource competition are more strongly associated with colour complexity of the head and breast than with that of the back and wing.
David López‐Idiáquez   +2 more
wiley   +1 more source

Characterization of chromosome structures of Falconinae (Falconidae, Falconiformes, Aves) by chromosome painting and delineation of chromosome rearrangements during their differentiation [PDF]

open access: yes, 2008
Karyotypes of most bird species are characterized by around 2n = 80 chromosomes, comprising 7–10 pairs of large- and medium-sized macrochromosomes including sex chromosomes and numerous morphologically indistinguishable microchromosomes.
GRIFFIN Darren K   +6 more
core   +2 more sources

Intraspecific variation and detectability of iridescence in the dorsal coloration of a wall lizard

open access: yesJournal of Zoology, Volume 326, Issue 3, Page 239-255, July 2025.
Wall lizards (genus Podarcis) show substantial intraspecific colour variation and iridescence, which may interact and affect overall colour appearance. Here, we set out to study iridescence in Podarcis liolepis in two localities in which lizards are known to differ in dorsal coloration. Our results show that P.
J. Abalos   +3 more
wiley   +1 more source

Assessment of a Social Media‐Based Method for Determining Raptor Diet

open access: yesEcology and Evolution, Volume 15, Issue 6, June 2025.
This study mined social media as a citizen science method to reduce the time burden and biases associated with recording accurate diet information for predators. In total, 1985 prey observations were recorded of two Australian coastal raptors and were used to produce diet profiles that were compared by region, social media platform, and against other ...
Leo Biggs   +7 more
wiley   +1 more source

Behavioural and environmental correlates of soaring-bird mortality at on-shore wind turbines [PDF]

open access: yes, 1996
1. Wind power plants represent a risk of bird mortality, but the effects are still poorly quantified. We measured bird mortality, analysed the factors that led birds to fly close to turbines, and proposed mitigation measures at two wind farms installed ...
Barrios, Luis, Rodríguez, Alejandro
core   +1 more source

Addicions a l'estudi dels rapinyaires "(Falconiformes)" dels massissos de Sant Llorenç del Munt-Serra de l'Obac, Montserrat i zones envoltants [PDF]

open access: yes, 1983
Estando en prensa un trabajo anterior (REAL, 1981), obtuve nuevos datos que ampliaban el estatus actual y antiguo de las diversas especies reproductoras, así como de alimentación, de cría, etc.
Real, Joan
core  

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