Results 51 to 60 of about 6,001 (240)

The “regime shift extinctions” hypothesis and mass extinction of waterbirds in Hawaiʻi

open access: yesEcosphere, Volume 17, Issue 1, January 2026.
Abstract Studies of biodiversity loss commonly imply that species extinctions occurred as a direct result of initial human arrival and thus are attributable to stewardship failures of Indigenous Peoples. However, recent studies have suggested this assumption is not supported by the evidence, prompting a global reevaluation of existing assumptions.
Kristen C. Harmon   +2 more
wiley   +1 more source

Diet of Cattle Egrets (Bubulcus ibis ibis) in the flood valley of the Paraná River, northern Argentina [PDF]

open access: yes, 2009
Fil: Ducommun, María de la Paz. Instituto Nacional de Limnología (INALI, CONICET-UNL); Santo Tomé; Santa FeFil: Quiroga, Martín Aníbal. Instituto Nacional de Limnología (INALI, CONICET-UNL); Santo Tomé; Santa FeFil: Beltzer, Adolfo Héctor.
Beltzer, Adolfo Héctor   +3 more
core  

Linking Habitat Conditions, Human Pressures, and Waterbird Diversity in a West African Coastal Wetland

open access: yesAfrican Journal of Ecology, Volume 63, Issue 8, December 2025.
ABSTRACT The Tanji wetland complex, situated on the Atlantic coast of The Gambia, is a coastal mosaic of mangroves, riparian forest, lagoons, and offshore islands of high ornithological significance. Despite its protected status, the reserve faces mounting pressures from human activities and environmental change, yet comprehensive ecological data ...
Mariama Camara   +5 more
wiley   +1 more source

Jenis-jenis Burung (Aves) Di Persawahan Desa Pasir Baru Kabupaten Rokan Hulu Riau [PDF]

open access: yes, 2015
Bird isa vertebrate which hasfeataer, reproduce by of laying eggs and help pollination, pest predator and supporting ecosystems. The alm of this study was to determine the species of birds in the rice field area of Sand VillagePasir Baru Rokan Hulu. This
Ade, F. Y. (Filza)   +2 more
core  

Mosquito iDNA Reflects Fine Scale Composition of Tropical Fauna

open access: yesEnvironmental DNA, Volume 7, Issue 6, November–December 2025.
We used mosquito iDNA to investigate fine scale ecological patterns of birds and mammals in the tropical savanna woodlands of Kakadu National Park. Revealing that mammalian richness is influenced by site, while avian richness changes with season. While community composition is influenced by fire during the dry season and vegetation during the wet ...
Christine Chivas   +6 more
wiley   +1 more source

A NEW SPECIES OF STRIGEA ABILDGAARD, 1790 (DIGENEA: STRIGEIDAE) IN CATTLE EGRET (BUBULCUS IBIS LINN.) FROM SINDH, PAKISTAN

open access: yesFUUAST Journal of Biology, 2021
Strigea brayi n.sp. was obtained from the small intestine of cattle egret (Bubulcus ibis Linn.) from Sindh, Pakistan. The trematodes were present in four hosts.
ALY KHAN   +2 more
doaj  

Coordinated movements of multiple pied‐billed grebes in association with an American alligator

open access: yesEcosphere, Volume 16, Issue 10, October 2025.
Abstract Interspecific associations can arise when one species benefits from the presence or behavior of another, often during foraging. Here, we describe a previously undocumented behavioral interaction between pied‐billed grebes (Podilymbus podiceps) and an American alligator (Alligator mississippiensis) in a freshwater wetland in South Florida ...
Alexander S. Romer   +4 more
wiley   +1 more source

Respiratory Infection by Cyathostoma (Hovorkonema) americana in a Population of Burrowing Owls (Athene cunicularia)—A Potential Case of Zoo–Wildlife Cross-Transmission

open access: yesJournal of Zoological and Botanical Gardens, 2023
A population of burrowing owls (Athene cunicularia) under professional care at Zoomarine Portugal presented with sudden respiratory clinical signs. Clinical management included a thorough diagnosis plan, including in-house fecal analysis that revealed ...
Gonçalo N. Marques   +6 more
doaj   +1 more source

Birds under pressure: associations of highly‐, moderately‐, and lowly‐abundant birds with landscape and local variables in a dense Neotropical city

open access: yesJournal of Avian Biology, Volume 2025, Issue 5, September 2025.
Urban ecological studies often emphasize the role of vegetation‐related factors in promoting local biodiversity, but less attention has been given to human‐related factors, especially in tropical assemblages dominated by native species. In this study, we assessed the role of landscape and local variables in bird species richness and abundance in ...
Jaime A. Garizábal‐Carmona   +2 more
wiley   +1 more source

Variación en el tamaño de los huevos en garzas (Aves: Ardeidae) que anidan en la ciénaga de Birama, Cuba

open access: yesRevista de Biología Tropical, 2015
Las variaciones intranidada de la talla de los huevos de las aves responden a numerosos factores ecológicos y de la historia evolutiva de las especies. En las zancudas aunque se ha descrito una disminución de la talla con el orden de puesta, los trabajos
Dennis Denis Ávila
doaj  

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