Results 11 to 20 of about 262 (132)
Effects of canopy connectivity on the arboreal ant community in coffee shade trees
We manipulated connectivity between the crowns of large shade trees and found more species and increased compositional similarity in connected crowns. Differences in connectivity in the upper canopy may be important in structuring differences in ant communities in shaded agricultural systems and unmanaged forests.
fern Wildtruth, Ivette Perfecto
wiley +1 more source
Abstract The use of biochar is expected to improve soil fertility and close nutrient cycles in degraded strongly weathered tropical soils. We, therefore, hypothesized that biochar amendment to tree plantations (a) increases nutrient fluxes with litterfall alone and with mineral fertilizer plus lime and (b) reduces N losses reflected by lower δ15N ...
Esthela Margarita González Sarango +2 more
wiley +1 more source
Pest categorisation of Lasiodiplodia pseudotheobromae
Abstract The EFSA Plant Health Panel performed a pest categorisation of Lasiodiplodia pseudotheobromae, a clearly defined fungus of the family Botryosphaeriaceae, which was first described in 2008 as a cryptic species within the L. theobromae complex.
EFSA Panel on Plant Health (PLH) +24 more
wiley +1 more source
Animal‐pollinated plants interact with neighbors for both abiotic resources and pollination, but few studies have compared the relative magnitude of these effects, particularly in agroecosystems. This study evaluated the effects of neighboring plants at three vertical strata (herbs, coffee bushes, and canopy trees) on pollen deposition, fertilization ...
Gordon Fitch +4 more
wiley +1 more source
Abstract The application of biochar to strongly weathered soils is thought to supply nutrients and improve nutrient retention. We hypothesized that biochar increases (a) total N, bioavailable macronutrient (NH4–N, P, K, Ca, Mg), micronutrient (Fe, Mn, Zn, Cu), and plant‐beneficial Na concentrations; and (b) nutrient retention in the topsoil.
Esthela Margarita Gonzalez Sarango +3 more
wiley +1 more source
Commodity risk assessment of Juglans regia plants from Turkey
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’. This Scientific Opinion covers the plant health risks posed by 2‐year‐old grafted bare rooted plants for ...
EFSA Panel on Plant Health (PLH) +27 more
wiley +1 more source
Abstract The literature suggests that biochar increases the fertility of degraded, nutrient‐poor tropical soils. We hypothesized that the addition of biochar (a) increases tree growth in two plantations on Ultisols in the south Ecuadorian Amazon region, (b) reduces litterfall during the dry season because the soil remains moister, and (c) improves the ...
Esthela M. Gonzalez Sarango +4 more
wiley +1 more source
Commodity risk assessment of Persea americana from Israel
Abstract The EFSA Panel on Plant health was requested to prepare and deliver risk assessments for commodities listed in the relevant Implementing Acts as ‘High risk plants, plant products and other objects’ (Commission Implementing Regulation (EU) 2018/2019 establishing a provisional list of high risk plants, plant products or other objects, within the
EFSA Panel on Plant Health (PLH) +25 more
wiley +1 more source
This study aimed to identify the best shade level for the growth of Schizolobium parabyba var. amazonicum and Eucalyptus urograndis seedlings to obtain more resilient seedlings with higher quality. We used an entirely randomized design was used, in a 2 x
Hygor Gomes de Almeida Sousa +7 more
doaj +1 more source
<p>This is the first register of Pantophthalmus kerteszianus Enderlein e P. chuni Enderlein (Diptera: Pantophthalmidae) attacking parica trees [Schizolobium parahyba (Vell.) S. F. Blake var. amazonicum (Huber ex Ducke) Barneby] in Paragominas, Para
Alexandre Mehl Lunz +4 more
doaj +1 more source

