Results 61 to 70 of about 16,644 (235)

Tree cover and geographic origin of tree species drive bird functional groups in urban environments

open access: yesWildlife Biology, EarlyView.
Urban trees provide habitat and resources for wild species in cities and support biodiversity provision of ecosystem services, among which insect control is particularly relevant. Predators of insects are promoted by the presence of trees and, in turn, may enhance biosecurity of the trees.
Marco Basile   +2 more
wiley   +1 more source

Observació d’un gorrió teulader Passer domesticus possiblement ginandromòrfic a Mallorca [PDF]

open access: yes, 2013
Es va observar un possible gorrió teulader Passer domesticus gynandromòrfic a Palma, Mallorca. L’exemplar mostrava ginandromorfisme lateral, amb diferents caràcters secundaris per cada una de les parts del cos.
Mas, Rafel
core  

Rapid scavenging of avian carcasses in the desert Southwest: Implications for mortality surveys not associated with infrastructure

open access: yesWildlife Society Bulletin, EarlyView.
We placed 214 avian carcasses in a desert environment at locations not associated with infrastructure and monitored their removal by scavengers using camera traps. We found that 211 of the 214 carcasses were scavenged and median persistence time was 1.53 days. None of the predictor variables were informative of carcass persistence times.
Thomas Huycke   +4 more
wiley   +1 more source

Prehistoric bird and egg shell remains from the village Sulze near Erfurt/Thuringia [PDF]

open access: yes, 2008
Prähistorische Eierschalenfragmente der Fundstelle Sulze bei Erfurt in Thüringen werden beschrieben und diskutiert. Die folgenden Arten werden nachgewiesen: Cygnus olor, Anser anser, Anas platyrhynchos und Gallus gallus forma domestica. Auf der Grundlage
Karl, Hans-Volker   +2 more
core  

The direct response of the gonads to cues of stress in a temperate songbird species is season-dependent. [PDF]

open access: yes, 2013
The gonadotropin releasing hormone (GnRH) system in the hypothalamus is often considered the final point in integration of environmental cues as they pertain to the reproductive axis.
Bentley, George   +2 more
core   +2 more sources

Iflaviruses in arthropods: when small is mighty

open access: yesInsect Science, EarlyView.
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia   +3 more
wiley   +1 more source

Comparison of two volunteer strategies for managing house sparrows in the United States

open access: yesConservation Science and Practice, EarlyView.
With a citizen science project, we investigated two volunteer management interventions that prevent house sparrow reproduction: swapping eggs with replicas (Swaps) and removing eggs and nest material (Removals). House Sparrows nested twice as quickly after Removals than Swaps, abandoned nestboxes more often after Swaps than Removals, with native ...
Suzanne M. Hartley   +4 more
wiley   +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

Abundance of Non-Native Birds in the City: Spatial Variation and Relationship with Socioeconomics in a South American City

open access: yesAnimals, 2023
Cities commonly support a high abundance of non-native species that can affect both wildlife and human health; however, their distribution across the urban environment and their relationship with socioeconomics are not well documented.
Macarena Silva-Ortega   +2 more
doaj   +1 more source

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