Results 51 to 60 of about 8,368 (222)

Home range shifts and habitat selection across life‐history stages in grey partridges

open access: yesWildlife Biology, EarlyView.
Understanding how birds use space throughout the year is essential for effective conservation planning, even in resident species. We investigated seasonal space use in a Central European population of grey partridges Perdix perdix, a rapidly declining residential farmland bird.
Amelie Laux   +2 more
wiley   +1 more source

Competitive effects of volunteer oilseed rape in wheat depending on the weed density

open access: yesJulius-Kühn-Archiv, 2012
Weeds are a major factor for yield losses in crop production. They compete with the crop for limiting factors such as space, nutrients, water and light. Crop plants themselves can occur as weeds in crop rotations (e.g. oilseed rape).
Krato, Christoph, Petersen, Jan
doaj   +1 more source

Mapping Above-Ground Biomass of Winter Oilseed Rape Using High Spatial Resolution Satellite Data at Parcel Scale under Waterlogging Conditions

open access: yesRemote Sensing, 2017
Oilseed rape (Brassica napus L.) is one of the three most important oil crops in China, and is regarded as a drought-tolerant oilseed crop. However, it is commonly sensitive to waterlogging, which usually refers to an adverse environment that limits crop
Jiahui Han   +9 more
doaj   +1 more source

Brood parasitism reduces but does not prevent Bombus terrestris reproductive success

open access: yesInsect Science, EarlyView.
Graphical depiction of the colony splitting process. Throughout figures in this paper, results pertaining to host success are represented in blue, and cuckoo success is represented in red. Abstract Cuckoo bumblebees are obligate brood parasites that must invade a colony of their host bumblebee species in order to reproduce.
Sofia Dartnell, Lynn V. Dicks
wiley   +1 more source

Comparison of morphological traits, productivity and canopy architecture of winter oilseed rape (Brassica napus L.) and white mustard (Sinapis alba L.)

open access: yesJournal of Applied Botany and Food Quality, 2012
In the years 2006-2008, comparative studies of productivity and plant architecture of open pollinated winter oilseed rape cv. NK Petrol and white mustard cv. Nakielska were undertaken.
T. Zajac   +3 more
doaj  

Yield effect of applying earthworm castings produced during the oilseed rape-growing season in rice-oilseed rape cropping fields to rice

open access: yesScientific Reports, 2018
In-field earthworm density can be increased by planting oilseed rape during the non-rice growing season as compared to maintaining the rice-growing fields in fallow.
Min Huang   +3 more
doaj   +1 more source

The dual crisis: Climate change simultaneously drives pollinator decline and pest outbreaks

open access: yesAgricultural and Forest Entomology, EarlyView.
Climate change acts as an asymmetric ecological filter, favouring r‐selected pest traits (rapid reproduction, generalism) while disadvantaging K‐selected pollinators. For every 1°C of warming, bee species richness declines ~25% since the 1990s, while pest‐induced crop losses increase by 10%–25%. A network‐centric approach integrating climate‐responsive
Diriba Fufa Serdo
wiley   +1 more source

Population dynamics and reproductive success of Short‐eared Owls in relation to widely fluctuating food abundance and farmland habitat degradation

open access: yesIbis, EarlyView.
Populations of the Short‐eared Owl Asio flammeus have declined across Europe and North America, probably in response to habitat degradation driven by agricultural intensification. However, long‐term evidence linking farmland habitat change to variation in breeding density and reproductive success remains limited.
Erkki Korpimäki   +2 more
wiley   +1 more source

Creation of fragrant wheat by targeted mutagenesis of either BADH1 or both BADH1 and BADH2 using CRISPR/Cas9

open access: yesJournal of Integrative Plant Biology, EarlyView.
Editing TaBADH1 alone or TaBADH1 and TaBADH2 via CRISPR/Cas9 produced fragrant wheat with up to 11.24‐fold higher 2‐acetyl‐1‐pyrroline than the wild type without yield penalty, revealing asymmetric functional redundancy between these two genes and providing elite germplasm for wheat quality ...
Jinman Luo   +7 more
wiley   +1 more source

Avirulence genes of Magnaporthe oryzae are a pathogen defense arsenal shaped by cognate rice resistance genes in the field

open access: yesNew Phytologist, EarlyView.
Population structure and AVR gene presence/absence of 383 single‐spore isolates from the US Mo population. Summary We examined the frequency of and variation in eight avirulence (AVR) genes from 840 Magnaporthe oryzae field isolates collected from the Southern United States relative to rice resistance (R) genes deployed from 1959 to 2017. Little coding
Xueyan Wang   +8 more
wiley   +1 more source

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