Results 131 to 140 of about 771,095 (248)

On the Early Holocene: Foraging to Early Agriculture [PDF]

open access: yes
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  

Satellite tracking reveals critical habitats and migratory pathways for green and hawksbill turtles nesting in Montserrat, Eastern Caribbean

open access: yesEndangered Species Research
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

open access: yesEcography, EarlyView.
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

open access: yesFrontiers in Ecology and the Environment, EarlyView.
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

Combining phenotypic, physiological, and multi‐omics studies to provide new insights on the role of 2,4‐epibrassinolide in regulation of seed shattering in Elymus sibiricus L.

open access: yesGrassland Research, EarlyView.
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 of perennial ryegrass: Global patterns and differentiation of ryegrass cultivars and Epichloë endophytes

open access: yesGrassland Research, EarlyView.
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

Optimization of moisture content and application rate of hay preservative during high‐moisture alfalfa hay baling in northwestern China

open access: yesGrassland Research, EarlyView.
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

open access: yesGrassland Research, EarlyView.
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.

open access: yesGrassland Research, EarlyView.
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]

open access: yes, 1995
Not ...
Krause, Elke Alexandra Klever
core  

Home - About - Disclaimer - Privacy