Results 131 to 140 of about 771,095 (248)
On the Early Holocene: Foraging to Early Agriculture [PDF]
We consider a world in which the mode of food production, foraging or agriculture, is endogenous, and in which technology grows exogenously. Within a model of coalition formation, we allow individuals to rationally form cooperative communities (bands) of
Nicolas Marceau, Gordon Myers
core
The United Kingdom Overseas Territory of Montserrat supports modest but regionally important nesting populations of green and hawksbill turtles. However, knowledge of the spatial ecology and regional connectivity of these populations is limited. Here, we
J Wiggins +8 more
doaj +1 more source
Long‐distance pollen transport mediated by migratory hoverflies
Long‐distance animal migrations shape ecosystems by redistributing nutrients, connecting populations, and mediating ecological interactions. However, the ecological contributions of many abundant insect migrants remain poorly quantified. Hoverflies are among the most numerous migratory insects and highly efficient pollinators, suggesting that their ...
Antonín Hlaváček +8 more
wiley +1 more source
Potential for conflict between urban coyotes and people experiencing unsheltered homelessness
Across North America, both unsheltered homelessness and human–coyote (Canis latrans) conflict are increasing, but the relationship between these phenomena has not been thoroughly explored. We synthesize literature‐based evidence with anecdotal observations that occurred during a 15‐year study of coyotes in Edmonton, Canada, to describe three likely ...
Sage Raymond +2 more
wiley +1 more source
Abstract Background Seed shattering limits the production of Elymus sibiricus L., and application of exogenous brassinosteroid significantly alleviates plant organ abscission. Methods To explore the potential regulatory network of brassinosteroid on seed shattering, the abscission zone of E. sibiricus cv. Lanyu No.
Huanhuan Lu +6 more
wiley +1 more source
Seed lipid profiles from three ryegrass cultivars infected with AR501 show distinct changes in the medium‐chain diacylglycerols, triacylglycerols and sphingolipids. The differential peal LN745.5052_5.78 can be identified as PG 16:0_18:2 with the supporting ms2 fragmentation spectrum. Abstract Background Forage perennial ryegrass (Lolium perenne L.) has
Mingshu Cao +6 more
wiley +1 more source
Abstract Background Leaf shatter during low‐moisture baling and mold proliferation under high‐moisture conditions pose major challenges in alfalfa hay production. A proprietary propionic acid‐based hay preservative product, LZP, effectively inhibits microbial reproduction in high‐moisture alfalfa bales; however, its optimal moisture thresholds and ...
Zulin Yuan +6 more
wiley +1 more source
Breeding switchgrass for reduced nitrogen demand
Breeding has improved switchgrass biomass yield, but productivity is still heavily dependent on nitrogen fertilizer application. The genetic diversity needed to improve nitrogen use efficiency of switchgrass remains underused, mainly because of the slow and laborious breeding process, thus leaving the crop's high nitrogen demand as a major barrier to ...
Michael D. Casler, Prabin Bajgain
wiley +1 more source
The effect of awns on seed yield and germination characteristics in Elymus nutans Griseb.
The effect of awns on seed yield. Three‐year field trials demonstrated that awns significantly regulate seed yield components and germination characteristics of Elymus nutans Griseb, laying a theoretical foundation for the breeding of high‐yielding forage varieties and seed production.
Yongsen Qiu +5 more
wiley +1 more source
Foraging behaviour of small mammals for sessile prey [PDF]
Not ...
Krause, Elke Alexandra Klever
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