Results 41 to 50 of about 7,156 (211)

Enterobacteria isolation in ostrich eggs (Struthio Camelus)

Brazilian Journal of Poultry Science, 2012
This study was conducted to determine the presence of enterobacteria in the eggs of ostriches reared on a farm with a history of reproductive failure. Ninety samples from twenty eggs were submitted to bacteriological tests.
T Knöbl, CP Cappellete, MAN Vigilato
doaj   +1 more source

Community perceptions and management of the fleshy‐fruited invasive alien plant Pyracantha angustifolia: Insights from South Africa's Montane grasslands

People and Nature, EarlyView.
Abstract Invasive alien plants can provide economic or cultural benefits to local communities, influencing perceptions and potentially affecting management decisions. Understanding these perceptions is crucial to avoiding inefficiencies, misunderstandings and conflicts in the management of invasive alien species.
Lehlohonolo D. Adams, Grant. D. Martin, Sandy‐Lynn Steenhuisen, Colleen T. Downs   +3 more
wiley   +1 more source

Using step width to compare locomotor biomechanics between extinct, non-avian theropod dinosaurs and modern obligate bipeds [PDF]

, 2017
How extinct, non-avian theropod dinosaurs locomoted is a subject of considerable interest, as is the manner in which it evolved on the line leading to birds. Fossil footprints provide the most direct evidence for answering these questions. In this study,
Barrett, R S, Bishop, P J, Clemente, C J, Graham, D F, Hocknull, S A, Hutchinson, J R, Lamas, L P, Lloyd, D G, Rubenson, J, Weems, R E, Wilson, R S   +10 more
core   +1 more source

Incubation Temperature for Ostrich (Struthio camelus) Eggs

Poultry Science, 2004
The impact of incubation temperature on egg weight loss, embryonic mortality, incubation period, hatchability, and chick weight in 394 ostrich (Struthio camelus) eggs was studied. Eggs were obtained from 3 farms in Texas. Three incubation temperatures (36.5, 37.0, or 37.5 degrees C) with relative humidity ranging from 20 to 30% were used.
S M, Hassan, A A, Siam, M E, Mady, A L, Cartwright   +3 more
openaire   +2 more sources

Contrasting properties of predation and scavenging networks governed by megaherbivores in an African savannah

Journal of Animal Ecology, EarlyView.
For the first time, predation and scavenging networks are directly compared within a single ecosystem. Using an 8‐year dataset of African mammals, including megaherbivores, this study reveals distinct structural rules and body mass constraints, providing a scalable framework for studying consumer–resource dynamics and ecosystem function.
Solange Alexandra Batista‐Nunes, Esther Sebastián‐González, Femke Broekhuis, Frank van Langevelde, Niels Mogensen, Marcos Moleón   +5 more
wiley   +1 more source

Artérias das glândulas adrenais em avestruzes (Struthio camelus)

Biotemas, 2011
O crescimento da criação racional de avestruz e seus subprodutos têm despertado interesse dos pesquisadores em ampliar os estudos com esse animal. Assim, áreas de pesquisa básicas, como a morfologia, tornam-se necessárias para dar subsídios às áreas ...
Angelita das Graças de Oliveira Honorato, Cheston César Honorato Pereira, Juliana França Ortega, Rozana Cristina Arantes, Bruno Gomes Vasconcelos, Frederico Ozanam Carneiro e Silva   +5 more
doaj   +1 more source

Bridging the Late Antique Gap in Northwest Arabia: New Archaeological Evidence on the Occupation of Wādī al‐Qurā (al‐ʿUlā [AlUla], Saudi Arabia) Between the Third and Seventh Centuries CE

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT In 2019, the Dadan Archaeological Project (CNRS/RCU/AFALULA) identified a Late Antique village 1 km south of ancient Dadan in the al‐ʿUlā valley (northwest Saudi Arabia). Three excavation seasons at this site (2021–2023) have uncovered a massive building constructed in the late third or early fourth cent.
Jérôme Rohmer, Abdulrahman Alsuhaibani, Charlène Bouchaud, Elora Chambraud, Vladimir Dabrowski, Hatem Djerbi, Fabien Lesguer, Hervé Monchot, Paul Picavet, Louise Purdue, Bertrand Riba, Shadi Shabo   +11 more
wiley   +1 more source

Monitoring African Megafauna in an Anthropogenic Landscape: A 15‐Year Case Study of the Vulnerable West African Giraffe

Animal Conservation, EarlyView.
We used pattern recognition software to correct misidentifications in a 15‐year photographic database of the last, vulnerable West African giraffe population in Niger. After revealing substantial methodological errors that had inflated population estimates by nearly 19%, we corrected individual encounter histories and applied capture‐mark‐recapture ...
Mara Vukelić, Ella W. White, Julian Fennessy, Abdoul Razack Moussa Zabeirou, Kateřina Gašparová, Simon Valle, Michael B. Brown, Thomas Rabeil, Karolína Brandlová   +8 more
wiley   +1 more source

Historical ostriches in the Libyan Desert, with ecological and taxonomic considerations

Natural History Sciences
Many historical records extend the known range of the African ostrich Struthio camelus to include almost the entire state territory of Libya. This significant expansion augments the spatial potentialities to reintroduce captive-bred progeny of the ...
Arnd Schreiber
doaj   +1 more source

Efectos de los atributos de la hembra de ñandú (Rhea americana) sobre la viabilidad del huevo [PDF]

, 2019
We conducted a study throughout a breeding season in a captive-bred population of Greater rheas (Rhea americana) to evaluate the association between egg viability and the female´s body weight and age.
Bazzano, Gisela del Valle, Lábaque, María Carla, Martella, Monica Beatriz, Navarro, Joaquin Luis   +3 more
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