Results 31 to 40 of about 20,056 (268)

Diet and Life-History Traits of Savannah Dwelling Waterbirds in Southern Africa: Implications for Their Conservation Status

open access: yesBirds, 2021
This study evaluates the relative contribution of reproduction-based life history traits and diet to the population trends in waterbirds from southern Africa.
Tawanda Tarakini   +4 more
doaj   +1 more source

Regional Genetic Structure in the Aquatic Macrophyte Ruppia cirrhosa Suggests Dispersal by Waterbirds [PDF]

open access: yes, 2017
The evolutionary history of the genus Ruppia has been shaped by hybridization, polyploidisation and vicariance that have resulted in a problematic taxonomy. Recent studies provided insight into species circumscription, organelle takeover by hybridization,
A Marchioni-Ortu   +71 more
core   +2 more sources

Changing numbers of three gull species in the British Isles [PDF]

open access: yes, 2016
Between-population variation of changes in numbers can provide insights into factors influencing variation in demography and how population size or density is regulated.
Nager, Ruedi G., O'Hanlon, Nina J.
core   +1 more source

Seasonal Habitat Selection by American White Pelicans

open access: yesDiversity, 2022
Resource utilization strategies of avian migrants are a major concern for conservation and management. Understanding seasonal habitat selection by migratory birds helps us explain the ongoing continental declines of migratory bird populations.
Frederick L. Cunningham   +2 more
doaj   +1 more source

BIRDIE: A data pipeline to inform wetland and waterbird conservation at multiple scales

open access: yesFrontiers in Ecology and Evolution, 2023
IntroductionEfforts to collect ecological data have intensified over the last decade. This is especially true for freshwater habitats, which are among the most impacted by human activity and yet lagging behind in terms of data availability.
Francisco Cervantes   +9 more
doaj   +1 more source

The recent expansion of an avian invasive species (the Cattle Egret Ardea ibis) in Algeria [PDF]

open access: yes, 2011
This study identifies new information on the recent distribution of an invasive bird species, the Cattle Egret Ardea ibis, in Algeria. Breeding and wintering distributions as well as breeding numbers were obtained from large-scale surveys in 1999 and ...
Barbraud, Christophe   +4 more
core   +3 more sources

Cliff top habitats provide important alternative feeding resources for wading birds of conservation importance wintering on non-estuarine coasts [PDF]

open access: yes, 2014
Rocky shores and beaches are important over-wintering areas for non-estuarine waders but have rarely been studied. We examined cliff top habitat use by 6 species of wader over 75 km of coast to assess their potential value as alternative feeding sites to
Furnell, Julie, Hull, Susan L.
core   +1 more source

Piscivore water bird diversity at freshwater tributaries of Zambezi River, Namibia

open access: yesKoedoe: African Protected Area Conservation and Science
Piscivorous waterbirds enhance wetlands’ diversity and have been seen as bio-indicators of ecological conditions within ecosystems. In addition to their ecological contribution, to wetlands functions and ecosystem services, these birds have been reported
Lucas P. Rutina   +2 more
doaj   +1 more source

The preference of migratory waterbirds to winter at a key location on the East Asian-Australasian flyway and its implications for habitat conservation

open access: yesEcological Informatics
Understanding the preference of migratory waterbirds to inhabit key habitats is crucial for mapping out effective management strategies to maintain migration network connectivity.
Shuangliang Dai   +8 more
doaj   +1 more source

Will improving wastewater treatment impact shorebirds? Effects of sewage discharges on estuarine invertebrates and birds [PDF]

open access: yes, 2012
Human communities often discharge wastewaters into estuaries, influencing their organic and pollutant loading, benthic community and trophic structure.
Ait Alla   +45 more
core   +1 more source

Home - About - Disclaimer - Privacy