Results 51 to 60 of about 364 (157)

Leucemia linfocítica crônica em periquito-de-colar (Psittacula krameri): primeiro relato de caso

open access: yesMedicina Veterinária
O presente relato descreve um caso de leucemia linfocítica crônica (LLC) em periquito-de-colar (Psittacula krameri) fêmea, de 9 anos, encaminhada pelo Laboratório de Criação e Incubação de Animais Alternativos, Silvestres e Exóticos (LACRIAS-UFPR) ao ...
João Vitor Janesko Zaions   +6 more
doaj   +1 more source

Alien Birds in Sub-Saharan Africa: An Overview

open access: yesConservation
Introduced species may pose one of the biggest threats to biodiversity conservation. Today, monitoring their status, distribution and abundance constitutes an important part of ecological and conservation studies throughout the world. In the Afrotropical
Grzegorz Kopij
doaj   +1 more source

Behavioural shifts of bats during urban music festivals

open access: yesEcological Solutions and Evidence, Volume 6, Issue 4, October–December 2025.
We investigated how large outdoor music festivals affect bat activity in an urban green spaces. Although total nightly activity did not decline on concert nights, we showed activity during concert hours dropped significantly—by up to 42% for some species.
Theodore S. Brook   +2 more
wiley   +1 more source

High Prevalence of Novel Beak and Feather Disease Virus in Sympatric Invasive Parakeets Introduced to Spain From Asia and South America

open access: yesDiversity, 2020
The psittacine beak and feather disease (PBFD) is a globally widespread infectious bird disease that mainly affects species within the Order Psittaciformes (parrots and allies).
Francisco Morinha   +3 more
doaj   +1 more source

The raptor lockdown menu—Shifts in prey composition suggest urban peregrine diets are linked to human activities

open access: yesPeople and Nature, 2023
Raptors can thrive in cities where food supplies are abundant and seasonally stable. The availability of such resources may be linked to spatiotemporally predictable human activities generating reliable food subsidies for both raptors and their prey ...
Brandon Mak   +3 more
doaj   +1 more source

Socio‐Economic Status and Non‐Native Species Drive Bird Ecosystem Service Provision in Urban Areas

open access: yesGlobal Change Biology, Volume 31, Issue 7, July 2025.
Birds bring important benefits to people, like pest control and aesthetic enjoyment. We studied birds in cities across Spain and Portugal to see how income levels affect the benefits people get from nature. We found that higher income areas tended to have more bird species but, surprisingly, fewer of these benefits, while places with non‐native birds ...
Fabio Marcolin   +5 more
wiley   +1 more source

FOGS: A SNPSTR Marker Database to Combat Wildlife Trafficking and a Cell Culture Bank for Ex‐Situ Conservation

open access: yesMolecular Ecology Resources, Volume 25, Issue 4, May 2025.
ABSTRACT Illegal wildlife trade is a growing problem internationally. Poaching of animals not only leads to the extinction of populations and species but also has serious consequences for ecosystems and economies. This study introduces a molecular marker system that authorities can use to detect and substantiate wildlife trafficking.
Annika Mozer   +19 more
wiley   +1 more source

Not in the countryside please! Investigating UK residents’ perceptions of an introduced species, the ring-necked parakeet (Psittacula krameri) [PDF]

open access: yesNeoBiota
Wildlife management can generate social conflict when stakeholder perceptions of the target species are not considered. Introduced Ring-necked Parakeets (RNP) are established in the UK and have been added to the ‘general licence’ of birds that can be ...
Alessandro Pirzio-Biroli   +5 more
doaj   +3 more sources

Reproductive timing as a constraint on invasion success in the Ring-necked parakeet (Psittacula krameri)

open access: yesBiological Invasions, 2017
Climate similarity favors biological invasion, but a match between seasonality in the novel range and the timing of life cycle events of the invader also influences the outcome of species introduction. Yet, phenology effects on invasion success have generally been neglected. Here we study whether a phenological mismatch limits the non-native range of a
Luna Alvaro   +13 more
openaire   +4 more sources

Estimated and in vivo measurements of bite force demonstrate exceptionally large bite forces in parrots (Psittaciformes)

open access: yesJournal of Anatomy, Volume 246, Issue 2, Page 299-315, February 2025.
Bite force in parrots has been explored using data from muscle masses. The values were validated by comparison with data for bite force collected from live parrots. The parrot's reputation for a strong bite force is well founded. Abstract Jaw morphology and function determine the range of dietary items that an organism can consume.
Shannon L. Harrison   +3 more
wiley   +1 more source

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