Results 11 to 20 of about 47,757 (294)
Pleistocene Hypothesis – Moving Savanna Perceptual Preference Hypothesis Beyond Savanna [PDF]
Frontiers in Psychology, 2022 We provide an extension of the Savanna perceptual preference hypothesis (“Savanna Hypothesis”), supposing that interaction with landscapes offering survival advantage for human groups during evolution might have gradually evolved to permanent landscape preferences.
Rathmann, Joachim +2 more
openaire +5 more sources
A distinct ecotonal tree community exists at central African forest-savanna transitions [PDF]
, 2021 1. Global change is expected to increase savanna woody encroachment as well as fire spreading into forest. Forest‐savanna ecotones are the frontier of these processes and can thus either mitigate or enhance the effects of global change.
Glover, Sarah +19 more
core +1 more source
Savanna ConneXions-Brand book ja kuvitukset [PDF]
, 2022 Tiivistelmä Tässä opinnäytetyössä käydään läpi opinnäytetyöprosessin tuloksena Savanna ConneXionsille rakentunut Brand book, sekä yrityksen koulutusmateriaaleissa käytettävät kuvituskuvat.
Käärmekallio, Eeva
core
Frequent burning promotes invasions of alien plants into a mesic African savanna [PDF]
, 2010 Fire is both inevitable and necessary for maintaining the structure and functioning of mesic savannas. Without disturbances such as fire and herbivory, tree cover can increase at the expense of grass cover and over time dominate mesic savannas ...
Andrew K. Skidmore +10 more
core +1 more source
Pattern Formation in Mesic Savannas
Bulletin of Mathematical Biology, 2023 AbstractWe analyze a spatially extended version of a well-known model of forest-savanna dynamics, which presents as a system of nonlinear partial integro-differential equations, and study necessary conditions for pattern-forming bifurcations. Homogeneous solutions dominate the dynamics of the standard forest-savanna model, regardless of the length ...
Denis Patterson +3 more
openaire +3 more sources
Heliyon, 2021 Experimental studies were conducted to evaluate 16 advanced breeding lines of cowpea (Vigna unguiculata (L) Walp) for genetic variability, heritability and correlation between maturity and yield related traits.
Emmanuel Y. Owusu +8 more
doaj +1 more source
Integrated peanut aflatoxin management for increase income and nutrition in Northern Ghana
Cogent Food & Agriculture, 2017 Aflatoxins contamination in peanut seeds remains a major challenge in Ghana. This study evaluated aflatoxin levels in peanut samples from farmer storage units, and participatory on-farm research trials.
Issah Sugri +6 more
doaj +1 more source
Performance of maize populations under different nitrogen rates in northern Ghana
Annals of Agricultural Sciences, 2018 This study evaluated grain yield performance, stability and agronomic nitrogen-use efficiency (AE) of twelve maize populations under three nitrogen (N) rates at two locations in the Guinea and Sudan savannah zones of Ghana in 2014 and 2015.
G.B. Adu +10 more
doaj +1 more source
Cogent Food & Agriculture, 2017 Maize plays a crucial role in combating food insecurity in Ghana due to its high yield potential and wide adaptability. Thirty five intermediate maturing maize hybrids were evaluated at eight locations in Ghana for two years (i) to determine grain yield ...
Alidu Haruna +6 more
doaj +1 more source
International Journal of Agronomy, 2020 Aphids (Aphis craccivora Koch) are an important vegetative stage pest of cowpea in Africa. The use of resistant cultivars is among the best management option for this pest, but the success of this strategy is influenced by the stability of the resistant ...
Francis Kusi +13 more
doaj +1 more source