Results 91 to 100 of about 9,864 (233)

The Effect of Familiarity on the Temporal Dynamics of Spatial and Affiliative Associations in Monk Parakeets [PDF]

Animal Behavior and Cognition
To successfully navigate dynamic social environments, animals must manage their relationships by deciding who to interact with, how often, and when.
Claire L. O’Connell, Annemarie van der Marel, Elizabeth A. Hobson   +2 more
doaj   +1 more source

Fine‐Scale Genomic Divergence in the Amazonian Pirarucu (Arapaima gigas) Highlights the Need for Local Management Strategies

Freshwater Biology, Volume 71, Issue 3, March 2026.
ABSTRACT Freshwater habitats face significant human disturbances globally, impacting food security and ecosystems. Protected areas can mitigate biodiversity loss, but limited data on population connectivity hinders conservation management. This study examines pirarucu (Arapaima gigas), a heavily exploited and threatened Amazonian fish, using genomic ...
Julia Tovar Verba, Ricardo J. Pereira, João V. Campos‐Silva, Izeni P. Farias, Tomas Hrbek, Carlos A. Peres, Joseph E. Hawes   +6 more
wiley   +1 more source

Vertebrates...and the conflicts in public image [PDF]

, 1974
The author explores human perceptions, as influenced by words and the images they conjure in the human brain. People worldwide have formed strong images relating to our environment, both positive and negative: beauty and splendor vs.
Haraldstad, Tormod, Haugen, Thrond Oddvar, Hawley, Kate Louise, Höglund, Erik, Kroglund, Frode, Olsen, Esben Moland   +5 more
core  

An unusual presentation of a case of human psittacosis [PDF]

, 2018
Background: Chlamydia psittaci is a gram-negative, obligate intracellular organism. Birds are the main reservoir, but also non-avian domestic animals and humans can be infected.
Boelens, Jerina, De Spiegeleer, Anton, Thijs, Elke, Van Braeckel, Eva, Vande Weygaerde, Yannick, Vanrompay, Daisy, Vermaelen, Karim, Versteele, Charlot   +7 more
core   +3 more sources

Large‐Bodied and Wide‐Beaked Avian Frugivores Show Greater Specialisation in Tropical Seed Dispersal Networks

Global Ecology and Biogeography, Volume 35, Issue 3, March 2026.
ABSTRACT Aim Avian frugivores with large bodies and beaks are increasingly threatened due to smaller population sizes, greater energy requirements and higher vulnerability to hunting pressure and illegal wildlife trade. However, it remains unclear whether birds with these traits adopt consistent strategies in their interactions with fleshy‐fruited ...
Pilar Lafita, Vicente García‐Navas, Rafael Malmagro, Carlos Martínez‐Núñez   +3 more
wiley   +1 more source

Psittacine beak and feather disease virus in budgerigars and ring-neck parakeets in South Africa

Onderstepoort Journal of Veterinary Research, 2004
Psittacine beak and feather disease (PBFD) is a common disease of the psittacine species and is caused by the psittacine beak and feather disease virus (PBFDV).
J. Albertyn, K.M. Tajbhai, R.R. Bragg
doaj   +1 more source

Emergence, spread, and impact of high‐pathogenicity avian influenza H5 in wild birds and mammals of South America and Antarctica

Conservation Biology, Volume 40, Issue 1, February 2026.
Abstract The currently circulating high‐pathogenicity avian influenza (HPAI) virus of the subtype H5 causes variable illness and death in wild and domestic birds and mammals, as well as in humans. This virus evolved from the Goose/Guangdong lineage of the HPAI H5 virus, which emerged in commercial poultry in China in 1996, spilled over into wild birds,
Thijs Kuiken, Ralph Eric Thijl Vanstreels, Ashley Banyard, Lineke Begeman, Andrew C. Breed, Meagan Dewar, Ruben Fijn, Patricia Pereira Serafini, Marcela Uhart, Michelle Wille   +9 more
wiley   +1 more source

Can the intake of antiparasitic secondary metabolites explain the low prevalence of hemoparasites among wild Psittaciformes? [PDF]

, 2018
Background: Parasites can exert selection pressure on their hosts through effects on survival, on reproductive success, on sexually selected ornament, with important ecological and evolutionary consequences, such as changes in population viability ...
A Araújo, A Legault, A Legault, A Martínez-Abraín, A Marzal, A Plischke, A Scheuerlein, AA Escalante, AC de Jong, AD González, Adriana Silva-Iturriza, AJ Nixon, AL Cabrera, Alfredo Mijares, AM Fallis, AM Ramey, Antoine Barnaud, AP Møller, AP Møller, AP Møller, Bethany Jackson, BL Hart, C Bravo, C Gonzalez-Quevedo, C Navarro, CM Bartlett, CRF Chagas, D Sol, DH Clayton, Dianne Brunton, DJ Brightsmith, DJ Brightsmith, DJ Forrester, E Arriero, E Arriero, EH Bucher, Elenise Sipinski, F Valera, FE Mayle, G Gilioli, G Polverino, G Valkiūnas, G Valkiūnas, G Valkiūnas, G Valkiūnas, GA Lozano, GC Rossi, GF Bennett, GF Bennett, GF Bennett, GF Bennett, GF Bennett, GF Bennett, GHF Seixas, Gláucia Seixas, H Ejiri, H Engström, HI Jones, HL Lutz, I Berkunsky, I Sazima, Igor Berkunsky, Indira Widmann, IR Viana, J Bellati, J Figuerola, J Martínez, J Martínez, J Martínez-de la Puente, J Parkes, J Theuerkauf, J Waldenström, JA Fargallo, Javier Martínez, JC de Roode, JC Dunn, JD Gilardi, JD Gilardi, JF Masello, JF Masello, JF Masello, JF Masello, JF Masello, JG Ewen, JJ Villalba, JL Tella, JL Tella, José A. Díaz-Luque, JR Beggs, JR Eberhard, JS Forbey, Juan F. Masello, JW Pepper, Jörn Theuerkauf, K Wilson, KL Durrant, KL Joyner, KV Gilardi, L Lafuma, L Ortiz-Catedral, L Ortiz-Catedral, Laura Casalins, Luciano Calderón, Luis Ortiz-Catedral, M Kottek, M Mermoz, M Svobodová, M Wink, MA Huffman, MAJ Moens, Mark E. Hauber, MC Peel, MG Forero, Michael Wink, MJ Watson, MJ Wood, MM Smith, NJ Clark, NJ Clark, NO Belo, O Hellgren, P Christe, P Christe, P Heneberg, P Holder, P Martuscelli, P Martuscelli, P Olias, P Quillfeldt, P Quillfeldt, P Widmann, Patricia Serafini, Peter Widmann, Petra Quillfeldt, PG Hofstatter, PJ Higgins, PJ Weatherhead, PO Dunn, R Development Core Team, R Jovani, R Jovani, R Macfarlane, R Tostes, R Trevelyan, RD Dawson, RE Ricklefs, RET Vanstreels, RJ Hijmans, RM Aramburú, RM Little, RM Little, RN Sehgal, RNM Sehgal, Rodrigo A. Vásquez, Romel Rosales, RS Boyes, RS McInnes, S Baillie, S Bartram, S Bensch, S Díaz, S Merino, S Merino, S Merino, S Merino, S Merino, S Taylor, Santiago Merino, SCL Knowles, SL Perkins, T Greene, T Juniper, T Wermundsen, TC Greene, V Apanius, V Sanz, Valeria Ojeda, Virginia Sanz   +177 more
core   +4 more sources

Extinction Risks of Tasmania's Avifauna

Journal of Biogeography, Volume 53, Issue 2, February 2026.
ABSTRACT Globally, island biotas are continuing to experience catastrophic losses leading to species extinctions. In Australia, 31 bird taxa have become extinct since European colonisation, including four from Tasmania including Macquarie Island. In 2024, the Tasmanian Government's State of the Environment Report provided compelling evidence on the ...
Sally L. Bryant, Eric J. Woehler
wiley   +1 more source

Projected impacts of climate change on habitat availability for an endangered parakeet.

PLoS ONE, 2018
In tropical montane cloud forests, climate change can cause upslope shifts in the distribution ranges of species, leading to reductions in distributional range. Endemic species with small ranges are particularly vulnerable to such decreases in range size,
Claudia Hermes, Klaus Keller, Robert E Nicholas, Gernot Segelbacher, H Martin Schaefer   +4 more
doaj   +1 more source