Results 71 to 80 of about 4,256 (204)

Aves migratórias ocorrentes no Pantanal: caracterização e conservação. [PDF]

, 2013
Periodicamente o Brasil é visitado por milhares de aves que realizam movimentos sazonais da América do Norte para a América do Sul e vice-versa (Sick 1983, Morrison et al. 1989, Chesser 1994). Dentre as aves que visitam o território nacional, destacam-se
NUNES, A. P., TOMAS, W. M.
core  

Concealed by darkness: interactions between predatory bats and nocturnally migrating songbirds illuminated by DNA sequencing [PDF]

, 2016
Recently, several species of aerial-hawking bats have been found to prey on migrating songbirds, but details on this behaviour and its relevance for bird migration are still unclear.
García-Mudarra, Juan L., Ibáñez, Carlos, Juste, Javier, Pastor-Beviá, David, Popa-Lisseanu, Ana G.   +4 more
core   +1 more source

Actualización y ampliación de la distribución geográfica reproductiva de tres especies de golondrinas en la Patagonia (Progne tapera fusca, Tachycineta leucopyga y Hirundo rustica erythrogaster, Passeriformes: Hirundinidae) y aspectos observados durante el período de cría

Acta Zoológica Lilloana
Acerca del rango geográfico reproductivo de la avifauna silvestre, es común encontrar en la bibliografía alusiones, citas y mapeos, pero en proporción son escasos los registros respaldados con evidencia, algo similar ocurre con su biología reproductiva ...
Mauro Bianchini
doaj   +1 more source

Evaluating the effects of tracking devices on survival, breeding success, behavior, and condition of a small, partially migratory shorebird

Journal of Avian Biology, Volume 2025, Issue 4, July 2025.
Studies on bird behavior have benefited from the miniaturization of tracking devices and the opportunities for massive data collection facilitated by extensive satellite and cellular infrastructures. However, assessments of the effects of tracking devices on the behavior and survival of birds are rarely conducted and disseminated – raising animal ...
Luke Eberhart‐Hertel, Emma M. Williams, Ailsa McGilvary‐Howard, Ted Howard, Tony Habraken, Colin F. J. O'Donnell, Clemens Küpper, Bart Kempenaers   +7 more
wiley   +1 more source

Keanekaragaman Jenis Burung pada Berbagai Tipe Habitat Beserta Gangguannya di Hutan Penelitian Dramaga, Bogor, Jawa Barat [PDF]

, 2015
Dramaga Research Forest, located in the outskirt of Bogor, provides a good habitat for birds. This research was aimed to study bird diversity, identifying habitat characteristics (around the forest path, along house edge, riparian habitat and the ...
Mardiastuti, A. (Ani), Mustari, A. H. (Abdul), Saefullah, A. (Asep)   +2 more
core  

Trends in Richness and Occupancy of Ugandan Birds and Relation to Local Tree Cover

African Journal of Ecology, Volume 63, Issue 4, June 2025.
ABSTRACT Changes in vegetation cover are occurring across sub‐Saharan Africa and can have substantial effects on ecological communities, but limited data make understanding status and trends difficult for many taxa. We surveyed birds for several decades across Uganda using point counts.
Ryan C. Burner, Evan M. Adams, Derek Pomeroy, Herbert Tushabe, Micheal Kibuule, Lars Jørgen Rostad, Zander S. Venter, Douglas Sheil   +7 more
wiley   +1 more source

Myzobdella Platensis (Hirundinida: Piscicolidae) is True Parasite of Blue Crabs (Crustacea: Portunidae)

Journal of Parasitology, 2009
Leeches exhibit a marked scope of diversity, including different kinds of symbiosis. The aim of the present study was to demonstrate through biochemical and histological analysis that a species of piscicolid leech, Myzobdella platensis, is a true parasite of blue crabs, feeding on their hemolymph and using them as a site for cocoon deposition.
Zara, Fernando Jose, Diogo Reigada, Alvaro Luiz, Domingues Passero, Luiz Felipe, Toyama, Marcos Hikari   +3 more
openaire   +4 more sources

Prevalence and Diversity of Haemosporidian–Associated Matryoshka RNA Viruses in a Natural Population of Wild Birds

Ecology and Evolution, Volume 15, Issue 5, May 2025.
This study investigated the prevalence and diversity of Matryoshka RNA viruses (MaRNAV) in wild birds in the San Francisco Bay Area, California. Using RNA sequencing and RT‐PCR, we identified two novel MaRNAVs (MaRNAV‐5 and ‐6) associated with haemosporidian infections in passerines and raptors. These findings suggest a high prevalence of these viruses,
Carlos W. Esperanza, Caroline E. Faircloth, Scott W. Roy, Ravinder N. M. Sehgal   +3 more
wiley   +1 more source

Notes on the behaviour, plumage and distribution of the White-tailed Swallow Hirundo megaensis [PDF]

, 2015
The White-tailed Swallow Hirundo megaensis is a threatened and poorly known bird endemic to southern Ethiopia, where it is restricted to a small area of Acacia savanna. Despite the paucity of previous nest records, we found 67 nests in the years 2010–14,
Adula, Motuma, Bladon, Andrew J, Collar, Nigel J, Dadacha, Galgalo, Dellelegn, Yilma, Denge, Jarso, Donald, Paul F, Gedeon, Kai, Green, Rhys E, Töpfer, Till, Wondafrash, Mengistu   +10 more
core   +1 more source

No Evidence for Male Retaliation in a Population With High Level of Extra‐Pair Paternity

Ecology and Evolution, Volume 15, Issue 5, May 2025.
In an experimental study, we investigated the relationship between within‐pair paternity of the males and their feeding rates in a monogamous passerine with a high rate of infidelity to reveal whether males recognise and penalise the unfaithfulness of their social partners. Our results contradict those previously found in another population of the same
Helga Gyarmathy, Renáta Kopena, Tünde Kneifel, Fanni Sarkadi, Eszter Szöllősi, Eszter Szász, János Török, Balázs Rosivall   +7 more
wiley   +1 more source