Results 41 to 50 of about 134,054 (334)

Linking remote-sensing estimates of land cover and census statistics on land use to produce maps of land use of the conterminous United States [PDF]

open access: yes, 2001
Human use of the land has a large effect on the structure of terrestrial ecosystems and the dynamics of biogeochemical cycles. For this reason, terrestrial ecosystem and biogeochemistry models require moderate resolution (e.g., ≤0.5°) information on land
Belward   +21 more
core   +2 more sources

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

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

High-Throughput Plant Phenotyping (HTPP) in Resource-Constrained Research Programs: A Working Example in Ghana

open access: yesAgronomy, 2022
In this paper, we present a procedure for implementing field-based high-throughput plant phenotyping (HTPP) that can be used in resource-constrained research programs.
Yussif Baba Kassim   +11 more
doaj   +1 more source

Effects of land use pattern on invasive plant diversity in Guinean savanna ecosystems of Togodo protected area, Togo [PDF]

open access: yes, 2018
Tropical natural ecosystems host a very diverse flora and fauna and are key ecosystems for global climate and biogeochemical regulation. Unfortunately, in West African landscapes, large areas of savanna and forest have been progressively replaced or ...
Akodewou, Amah   +5 more
core  

Early Pliocene Varanus (Squamata, Varanidae) remains from Megalo Emvolon, Thessaloniki, Greece

open access: yesThe Anatomical Record, EarlyView.
The article describes new cranial and postcranial varanid material from Megalo Emvolon Lower Pliocene vertebrate fossil site near Thessaloniki. The fossils, likely representing a single individual, are referred to Varanus cf. marathonensis. Abstract This study describes new fossil varanid material from a recently discovered fossil spot (MVL site) at ...
Chara Drakopoulou   +3 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

A comparison between legume technologies and fallow, and their effects on maize and soil traits, in two distinct environments of the West African savannah [PDF]

open access: yes, 2008
Legume¿maize rotation and maize nitrogen (N)-response trials were carried out simultaneously from 1998 to 2004 in two distinct agro-ecological environments of West Africa: the humid derived savannah (Ibadan) and the drier northern Guinea savannah (Zaria).
Franke, A.C.   +4 more
core   +2 more sources

High‐intensity fires may have limited medium‐term effectiveness for reversing woody plant encroachment in an African savanna [PDF]

open access: bronze, 2023
Tercia Strydom   +6 more
openalex   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy