Results 121 to 130 of about 23,831 (306)
The spread of non‐native species
Biological Reviews, EarlyView.ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock +16 more
wiley +1 more source
Evaluating the spring alfalfa stand [PDF]
, 2006 Extended periods of unseasonably warm temperatures during the winter months can lead to reduced winter hardiness and has been the most frequent cause of widespread winter injury to alfalfa and mixed forage stands in past years.
Barnhart, Stephen K.
core +4 more sources
The impacts of biological invasions
Biological Reviews, EarlyView.ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock +42 more
wiley +1 more source
COMPARISON OF METHODS FOR OBTAINING GENETIC DIVERSITY FOR BREEDING WINTER-HARDY WHEAT IN SIBERIA
Вавиловский журнал генетики и селекции, 2014 High winter hardiness requires two features: (1) a duration of deep rest comparable to the duration of wintering and (2) high frost resistance. An interdisciplinary approach to studying the mechanisms governing the formation of winter hardiness permits ...
V. E. Kozlov
doaj
, 1959 This circular has been prepared with three major objectives in mind. 1) to define areas in which tree fruit culture is possible in Alaska and the types of fruit that can be grown in each, 2) to name and describe the varieties that at the present time ...
Babb, M. F.
core
Early evolutionary history of the seed
Biological Reviews, EarlyView.ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman +2 more
wiley +1 more source
Subterranean environments contribute to three‐quarters of classified ecosystem services
Biological Reviews, EarlyView.ABSTRACT Beneath the Earth's surface lies a network of interconnected caves, voids, and systems of fissures forming in rocks of sedimentary, igneous, or metamorphic origin. Although largely inaccessible to humans, this hidden realm supports and regulates services critical to ecological health and human well‐being.
Stefano Mammola +30 more
wiley +1 more source
Report of Progress: January 1 to December 31, 1952 [PDF]
, 1953 Each calendar year the Alaska Agricultural Experiment Station submits a Progress Report to the University of Alaska and the U. S. Department of Agriculture, the 2 cooperating agencies under which it operates. This 1952 report segregates the work of each
Irwin, Don L.
core
Spatial metrics in fire ecology: seeking consistency amidst complexity
Biological Reviews, EarlyView.ABSTRACT Technological advances, including remote sensing, have led to a proliferation of metrics used in ecological studies to examine spatial patterns of fire regimes and their ecological effects. Researchers can use many different metrics to analyse spatial variation in both fire events and resulting fire regimes, including fire size, shape ...
Alexander R. Carey +5 more
wiley +1 more source
, 1953 Since fanning in Alaska first began and especially since dairy farming became the primary agricultural industry, there has existed a need for hardy legumes which would survive Alaska winters and produce satisfactory yields of high quality forage. To
Hodgson, H.J. +2 more
core