Results 41 to 50 of about 158,905 (182)

Effect of Morphology and Spatial Distribution of Males on Vocal Identity in a Non‐Learning African Wood Dove

Integrative Zoology, EarlyView.
Emerald‐spotted Wood‐Dove songs show strong individual vocal signatures. Morphology explains little acoustic variation. Acoustic divergence increases with geographic distance between males, while local neighbor density does not influence vocal distinctiveness.
Lia Zampa, Paweł Szymański, Katarzyna Łosak, Tomasz Stanisław Osiejuk   +3 more
wiley   +1 more source

Biology, ecology and dynamics of Deborrea malgassa (Heylarts 1884) (Lepidoptera: Psychidae), the main threat to apple Malus domestica Borkh growing in Madagascar

Agricultural and Forest Entomology, EarlyView.
Bioecology parameters of the endemic Psychidae Deborrea malgassa, the main pest of apple trees in Madagascar. Spatiotemporal dynamics of Deborrea malgassa, with a peak infestation between May and August. Proposed targeted prophylaxis techniques associated with other agroecological principles will be key to reducing the vulnerability of apple orchards ...
Miora Ranaivozandriny, Henriette Rasolofoarivao, Santatra Ravelomanantsoa, Bruno Rasmussen, Bertrand Muller, Lala Harivelo Raveloson Ravaomanarivo, Hélène Delatte   +6 more
wiley   +1 more source

Shallow Eastern Indian Ocean Thermocline Hinders ENSO Teleconnection to Southern Africa

Geophysical Research Letters
Rainfall peaks during austral summer in southern Africa, where most countries are vulnerable to hydroclimate extremes induced by El Niño‐Southern Oscillation (ENSO).
Haodong Wang, Tao Geng, Wenju Cai, Xiaopei Lin   +3 more
doaj   +1 more source

Sunflower seed yield and quality stabilize across planting dates during hot, dry seasons under rainfed conditions in South Africa☆

Oilseeds and fats, crops and lipids
South Africa is a water-scarce country predominantly practicing dryland agriculture, relying on rainfall onset to determine planting date. Sunflower is commonly considered a substitute crop, planted when primary crops face delayed plantings.
Mapfumo Phrasia, Archer Emma, Swanevelder Dirk Z.H., Wilken Markus, Creux Nicky M.   +4 more
doaj   +1 more source

South Africa’s winter rainfall region drought: A region in transition?

Climate Risk Management, 2019
The Western Cape region of South Africa is a key producing area for South African agriculture, with a strong dependence on austral winter rainfall. The past three years have, however, seen extensive drought impacting this region, with significant impacts
Emma Archer, Willem Landman, Johan Malherbe, Mark Tadross, Simone Pretorius   +4 more
doaj   +1 more source

Evolutionary framework and tribal circumscription of Amaranthaceae sensu stricto based on a comprehensive phylogenomic analysis

Cladistics, EarlyView.
Abstract The evolutionary history of Amaranthaceae sensu stricto (s.s.) has been shaped by multiple whole‐genome duplications and rapid radiations, producing an ecologically diverse lineage whose internal relationships have long remained unresolved.
Tina Kiedaisch, Anže Žerdoner Čalasan, Ross A. McCauley, Gudrun Kadereit   +3 more
wiley   +1 more source

A revised classification system of the marronoid clade of spiders (Araneae), based on dense sampling phylogenomics and comparative morphology

Cladistics, EarlyView.
Abstract The marronoid clade is a globally distributed, ecologically diverse group of spiders. It is an important faunal component in both natural and synanthropic environments, and even found in aquatic and extreme habitats such as desert salt flats. The systematics of the marronoid clade has been notoriously unstable due to the widespread character ...
Jonas O. Wolff, Michael B. J. Kelly, Franklyn Cala‐Riquelme, Jacob A. Gorneau, Katherine O. Montana, Helen M. Smith, Phil J. Sirvid, Cor J. Vink, Lauren A. Esposito, Martín J. Ramírez, Charles E. Griswold   +10 more
wiley   +1 more source

Do apartheid ao século XXI: histórico da democratização Sul-Africana [PDF]

, 2010
TCC (graduação) - Universidade Federal de Santa Catarina. Centro Sócio-Econômico. Economia.A presente monografia apresenta uma breve perspectiva acerca da história social, econômica e política da República da África do Sul, especialmente no período ...
Oliveira, Renata Paes de
core  

Algunas consideraciones sobre la integración regional en el África Subsahariana. La experiencia del África Austral

Astrolabio: Nueva Época, 2010
Algunas consideraciones sobre la integración regional en el África Subsahariana.
Diego Buffa
doaj  

A rapid shift in migration schedule of an Austral shorebird is linked to a changing southern climate oscillation

Ibis, EarlyView.
Global climate change is reshaping the schedules and routes of migratory birds, which can disrupt annual cycles, ecological interactions and the fitness trade‐offs of migrating or staying resident. In particular, climate change has led to advances in arrival at the breeding grounds and to shifts in the timing of post‐breeding migration, whereby both ...
Bashar Jarayseh, Luke Eberhart‐Hertel, Bart Kempenaers   +2 more
wiley   +1 more source