Results 121 to 130 of about 14,595 (259)
ABSTRACT Riparian zones in Mediterranean agroecosystems are highly vulnerable to degradation because cultivation often reaches stream edges and annual vegetation senesces during the late‐summer dry period, leaving soils exposed when the first erosive autumn rains occur.
Marcelo Sternberg +4 more
wiley +1 more source
Two new endemic species of Portulaca (Portulacaceae) from the Brazilian Pampa grasslands
Portulaca L. is a monophyletic, cosmopolitan genus of succulent plants comprising ca 153 species, with particularly high diversity in xerophytic ecosystems in tropical and subtropical regions. Based on morphological evidence, we describe and illustrate two new species from the Brazilian Pampa, Portulaca guaritensis and Portulaca guenoa.
José Roberto Ferraz +3 more
wiley +1 more source
Ravikumar Hoogar +4 more
openaire +1 more source
Effects of weed management strategies on weed density and biomass and saffron (Crocus sativus) yield
In order to study and compare chemical and non-chemical methods of weed management in saffron (Crocus sativus) fields, two field experiments were carried out in a randomized completely block design with three replications at Research Field Station of Gonabad during 2009 to 2011.
Hossein Zare Hosseini +3 more
openaire +1 more source
Abstract Different aspects of ecological systems, biotic or abiotic, often fluctuate in coordinated patterns over space and time. Such high concordance between ecological processes is often referred to as ecological synchrony. Human activities, including and beyond climate change, have the potential to alter ecological synchrony by disrupting or ...
Yiluan Song +9 more
wiley +1 more source
Designing for biodiversity data in place: Species, encounters, and interfaces
Abstract Species occurrence data, which records the presence of an organism at a point in space and time, is central to environmental science and its opening up to new forms of participation such as citizen science. Such data are increasingly aggregated and mobilised, reaching diverse audiences.
Mitchell Whitelaw +3 more
wiley +1 more source
Abstract Urban environments create unique challenges for wildlife, where dietary habits may reflect both ecological heterogeneity and societal disparities. In this study, we explored how social factors such as household income and human population density, and ecological factors such as tree canopy correlate with coyote (Canis latrans) diets in Seattle,
Samantha Erin Sophia Kreling +7 more
wiley +1 more source
Abstract Millions of hectares of rangelands have been subject to degeneration through overgrazing, agricultural expansion, urbanisation and afforestation. Countering this, regeneration is a natural process whereby rangeland ecosystems revive themselves.
Ethan Gordon +5 more
wiley +1 more source
Colored plastic mulch impacts on soil properties, weed density and vegetable crop productivity: A meta-analysis. [PDF]
Sokombela A +5 more
europepmc +1 more source
Abstract Urban community gardens are often assumed to enhance fine‐scale biodiversity, yet repeated disturbance and shared horticultural norms may also contribute to urban biotic homogenization—the convergence of species composition across spatial scales and sites within the urban matrix.
Kristen Jovanelly, Theresa W. Ong
wiley +1 more source

