Results 11 to 20 of about 4,545,157 (230)

What causes willow die-off? [PDF]

open access: yesRangelands, 2003
In riparian areas, willow (Salix spp.) has been identified as a key species for stream health, bank stability, vegetative filter zones and the winter survival of deer, elk, moose, beaver, hares, and ptarmigan. Consequently, the sustainability of individual willows and willow communities is fundamental to both the functioning of riparian ecosystems and ...
Limb, R., Marlow, C.B., Jacobson, B.
openaire   +3 more sources

Alaskan Seabird Die-Offs

open access: yesOceanography, 2022
Prior to 2015, seabird die-offs in Alaskan waters (Northern Gulf of Alaska, eastern Bering Sea, eastern Chukchi Sea) were rare, typically occurred in mid-winter, and were linked to epizootic disease events (Bodenstein et al., 2015) or above-average ocean temperatures associated with strong El Nino-Southern Oscillation events.
Robb Kaler, Kathy Kuletz
openaire   +1 more source

Mussel Mass Mortality and the Microbiome: Evidence for Shifts in the Bacterial Microbiome of a Declining Freshwater Bivalve

open access: yesMicroorganisms, 2021
Freshwater mussels (Unionida) are suffering mass mortality events worldwide, but the causes remain enigmatic. Here, we describe an analysis of bacterial loads, community structure, and inferred metabolic pathways in the hemolymph of pheasantshells ...
Jordan C. Richard   +8 more
doaj   +1 more source

Recent Tree Mortality Dampens Semi‐Arid Forest Die‐Off During Subsequent Drought

open access: yesAGU Advances, 2023
Climate change is expected to increase drought intensity and frequency, which are commonly predicted will threaten the survival of forests. Most forest die‐off projections assume that recent tree mortality will not alter die‐off severity during ...
Carl A. Norlen, Michael L. Goulden
doaj   +1 more source

Dead again: predictions of repeat tree die-off under hotter droughts confirm mortality thresholds for a dryland conifer species

open access: yesEnvironmental Research Letters, 2022
Tree die-off, driven by extreme drought and exacerbated by a warming climate, is occurring rapidly across every wooded continent—threatening carbon sinks and other ecosystem services provided by forests and woodlands.
Andreas P Wion   +7 more
doaj   +1 more source

Stunted Growth and Stepwise Die-Off in Animal Cohorts [PDF]

open access: yesThe American Naturalist, 1995
A model of an animal cohort foraging on logistically growing food is analyzed. The problem is captured in three differential equations, one for food density and two for the state of the animal cohort, keeping track of body weight and number of individuals, respectively.
Scheffer, M.   +4 more
openaire   +2 more sources

Modeling Climate Impacts on Tree Growth to Assess Tree Vulnerability to Drought During Forest Dieback

open access: yesFrontiers in Plant Science, 2021
Forest dieback because of drought is a global phenomenon threatening particular tree populations. Particularly vulnerable stands are usually located in climatically stressing locations such as xeric sites subjected to seasonal drought.
Cristina Valeriano   +6 more
doaj   +1 more source

Trends der Weiterbildung. DIE-Trendanalyse 2014 [PDF]

open access: yes, 2014
The third DIE (German institute for development politics) trend analysis documents the structures, processes and results of the further development on the basis of educational reporting data and current findings of educational research.
Deutsches Institut für Erwachsenenbildung (DIE)
core   +1 more source

THE IRANIAN REVOLUTION AND ITS AFTERMATH

open access: yes, 2022
With: Kamran Matin, Shahrzad Mojab, Kaveh Ehsani, Nasser Mohajer, Naghmeh Sohrabi, Orkideh Behrouzan, Shokoufeh Sakhi, Bahar Majdzadeh, Omid Montazeri, Marie Ladier-Fouladi, Fatemeh Masjedi, Arang Keshavarzian, Ahmad Moradi, Yasmin Nadir, Natalia ...
Off-Site
core   +1 more source

The 2022 Diadema antillarum die-off event: Comparisons with the 1983-1984 mass mortality

open access: yesFrontiers in Marine Science, 2023
The 1983-1984 die-off of the long-spined sea urchin Diadema antillarum stands out as a catastrophic marine event because of its detrimental effects on Caribbean coral reefs. Without the grazing activities of this key herbivore, turf and macroalgae became
Alwin Hylkema   +11 more
doaj   +1 more source

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