Results 31 to 40 of about 47,757 (294)

Deforestation and Efficiency: Insights From Forest Transition in the Brazilian Cerrado

open access: yesAgribusiness, EarlyView.
ABSTRACT This paper estimates technical efficiency (TE) and environmental efficiency (EE) of agricultural production at the municipal level of the Brazilian Cerrado in 2006 and 2017, and investigates their underlying mechanisms in relation to forest transition theory.
Ricardo Muniz Simões   +2 more
wiley   +1 more source

Dynamics of Sudanian savanna-woodland ecosystem in response to disturbances [PDF]

open access: yes, 2007
Grazing, fire and selective tree cutting are major disturbances shaping species diversity and productivity in savanna-woodland ecosystems. Their effects, however, are highly variable and poorly understood.
Savadogo, Patrice
core   +1 more source

Herbarium‐based measurements are reliable predictors of fresh plant traits in Neotropical Myrtaceae

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise Herbarium specimens are increasingly used to extract morphological traits for ecological and evolutionary studies, yet the effects of tissue desiccation on trait measurements remain poorly understood. Here, we tested two hypotheses: (H1) whether higher tissue water content leads to greater measurement changes after herborization and ...
Yacov Kilsztajn   +4 more
wiley   +1 more source

Figments of Imagination v. 26 (2018): 6-7

open access: yes, 2018
Short story "Alone in a Bar" by Savanna ...

core   +2 more sources

Determining the optimal inoculant rate to maximize soybean productivity in the Guinea Savanna agro-ecological zone of Ghana

open access: yesScientific Reports
Soybean productivity in sub-Saharan Africa is often constrained by low soil fertility and limited biological nitrogen fixation (BNF). This study evaluated the effects of different rhizobial inoculant rates (0, 5, 7.5, 10, and 12.5 g kg−1 seed) on growth,
Abdul-Latif Abdul-Aziz   +7 more
doaj   +1 more source

Are there morpho‐acoustic patterns of adaptation in nonhuman primate ears? Testing the role of ecology and habitat in shaping ear morphology and function

open access: yesThe Anatomical Record, EarlyView.
Abstract Analysis of the variation in the bony structures of the inner and middle ear provides critical insights into functional morphology, as well as adaptive morphology across primates. In this study, we investigated whether ear morphology patterns are related to the ecological characteristics of species and their habitats to test two acoustic ...
Myriam Marsot   +4 more
wiley   +1 more source

Morpho‐functional analyses of the jaw apparatus in the Blue‐and‐yellow Macaw (Ara ararauna, Psittaciformes, Aves): Adaptations to feeding behavior

open access: yesThe Anatomical Record, EarlyView.
Abstract Macaws are renowned for processing dry, mechanically resistant fruits, yet the species‐level anatomical and functional correlates of this performance remain incompletely resolved. We examined the feeding apparatus of the Blue‐and‐yellow Macaw (Ara ararauna) using an integrated approach that combines osteology, myology, and bite‐force estimates
Sérgio R. Posso   +2 more
wiley   +1 more source

Optimizing maize varietal response to nitrogen fertilization in the Guinea Savanna agroecological zone

open access: yesDiscover Plants
Maize (Zea mays L.) is the most important cereal crop in Ghana but yields still fall short of potential due to poor soil fertility and suboptimal nitrogen (N) management.
Abdul-Latif Abdul-Aziz   +6 more
doaj   +1 more source

Growth, Nodulation, and Yield Responses of Groundnut (Arachis hypogaea L.) as Influenced by Combined Application of Rhizobium Inoculant and Phosphorus in the Guinea Savanna Zone of Ghana

open access: yesInternational Journal of Agronomy, 2020
Groundnut yields obtained by farmers in northern Ghana are generally low due to low soil fertility resulting from continuous cropping coupled with low use of external inputs.
Michael Asante   +2 more
doaj   +1 more source

Reflecting on research produced after more than 60 years of exclosures in the Kruger National Park

open access: yesKoedoe: African Protected Area Conservation and Science, 2022
Herbivores are a main driver of ecosystem patterns and processes in semi-arid savannas, with their effects clearly observed when they are excluded from landscapes.
Corli Wigley-Coetsee   +11 more
doaj   +1 more source

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