Results 31 to 40 of about 73,746 (281)

Biology of the Genus \u3ci\u3eHemileuca\u3c/i\u3e (Lepidoptera: Saturniidae) in Michigan [PDF]

open access: yes, 2017
The habitats and host plants of buckmoths (Hemileuca: Saturniidae: Hernileucinae) in Michigan are described and compared to those of the three species known from eastern North America, H. maia, H. nevadensls, and H. lucina.
Scholtens, Brian G   +1 more
core   +2 more sources

Comparison of energy-wood and pulpwood thinning systems in young birch stands [PDF]

open access: yes, 2011
In early thinnings, a profitable alternative to pulpwood could be to harvest whole trees as energy-wood. In theoretical analyses, we compared the extractible volumes of energy-wood and pulpwood, and their respective gross values in differently aged ...
Bergström, Dan   +3 more
core   +1 more source

Repeated aeolian deflation during the Allerød/GI-1a-c in the coversand lowland of NW Belgium [PDF]

open access: yes, 2020
The results of multi-disciplinary research carried out on the deposits of the Moerbeke "Driehoek" site, located along the northern bank of the extensive Moervaart palaeolake (NW Belgium), are presented.
Bos, Johanna A.A.   +3 more
core   +1 more source

Contributions of Plant Litter Decomposition to Soil Nutrients in Ecological Tea Gardens

open access: yesAgriculture, 2022
Plant litter decomposition and its effect on soil nutrients are important parts of the ecosystem material cycle, and understanding these processes is key for species selection and allocation to promote the effective use of litter in ecological tea ...
Shaqian Liu   +5 more
doaj   +1 more source

Replicability of data collected for empirical estimation of relative pollen productivity [PDF]

open access: yes, 2016
The effects of repeated survey and fieldwork timing on data derived from a recently proposed standard field methodology for empirical estimation of relative pollen productivity (RPP) have been tested.
Bunting, M. Jane   +2 more
core   +1 more source

Post-disturbance vegetation dynamics during the Late Pleistocene and the Holocene: An example from NW Iberia [PDF]

open access: yes, 2012
This is the post-print version of the final paper published in Global and Planetary Change. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural ...
Allen   +67 more
core   +2 more sources

Pattern of extinction of the woolly mammoth in Beringia. [PDF]

open access: yes, 2012
Extinction of the woolly mammoth in Beringia has long been subject to research and speculation. Here we use a new geo-referenced database of radiocarbon-dated evidence to show that mammoths were abundant in the open-habitat of Marine Isotope Stage 3 (∼45-
Beilman, DW   +7 more
core   +1 more source

Carbon and water relations of contrasting Arctic plants: implications for shrub expansion in West Greenland

open access: yesEcosphere, 2016
The recent expansion of deciduous shrubs is a common observation throughout the Arctic. However, we lack a complete understanding of how physiological differences between deciduous shrubs and coexisting species may confer competitive advantages to shrubs.
Sean M. P. Cahoon   +2 more
doaj   +1 more source

The variation of the onset of Betula pendula (Roth.) flowering in Rzeszów, SE Poland: fluctuation or trend?

open access: yesActa Agrobotanica, 2016
The global rise in air temperature has major implications for ecosystems, populations, ecology of many living organisms, public health as well as economy.
Idalia Kasprzyk
doaj   +1 more source

Contrasting effects of experimental warming in the initiation year and the flowering year on flower phenology of boreal understory species

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise High‐latitude plants initiate flower primordia at least 1 year before flowering. While impacts of rising temperatures on phenology in the flowering year are well studied, the effects of warmer temperatures in the initiation year (IY; the year before flowering) are virtually unknown.
Christa P. H. Mulder   +2 more
wiley   +1 more source

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