Results 71 to 80 of about 75,567 (294)

Leaf support biomechanics of neotropical understory herbs [PDF]

open access: yesAmerican Journal of Botany, 2004
Plants in light‐limited tropical rainforest understories face an important carbon allocation trade‐off: investment of available carbon into photosynthetic tissue should be advantageous, while risk of damage and mortality from falling debris favors investment into nonphotosynthetic structural tissue.
Arielle M, Cooley   +2 more
openaire   +2 more sources

Predicting long‐term population viability for an imperiled salamander under future climate changes

open access: yesThe Journal of Wildlife Management, EarlyView.
We evaluated the long‐term viability of 2 reticulated flatwoods salamander (Ambystoma bishopi) populations in response to multiple future climate change scenarios. We found that there is a high probability of extinction by 2100 under some scenarios, mostly driven by severe droughts and repeated reproductive failure. Conservation actions should focus on
Houston C. Chandler   +3 more
wiley   +1 more source

Separating overstory and understory leaf area indices for global needleleaf and deciduous broadleaf forests by fusion of MODIS and MISR data [PDF]

open access: yesBiogeosciences, 2017
Forest overstory and understory layers differ in carbon and water cycle regimes and phenology, as well as ecosystem functions. Separate retrievals of leaf area index (LAI) for these two layers would help to improve modeling forest biogeochemical cycles ...
Y. Liu, R. Liu, J. Pisek, J. M. Chen
doaj   +1 more source

Occurrence, morphology and growth of understory saplings in Swedish forests [PDF]

open access: yes, 2004
Growing demands for a multipurpose forestry leads to increased use of silvicultural systems that avoid clear-cutting. Regeneration in such systems is based on establishment and ingrowth of new seedlings under a more or less closed canopy.
Wikberg, Per-Erik
core  

Global assessment of nitrogen deposition effects on terrestrial plant diversity : a synthesis [PDF]

open access: yes, 2009
Atmospheric nitrogen (N) deposition is it recognized threat to plant diversity ill temperate and northern parts of Europe and North America. This paper assesses evidence from field experiments for N deposition effects and thresholds for terrestrial plant
Alkemade, R.   +16 more
core   +7 more sources

Carbon Stock and Environmental Variations of Typical Plantations in Mufu Mountain in Hubei Province, China

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Forest ecosystems play a critical role in the global carbon cycle. As a significant terrestrial carbon sink, plantations exhibit carbon stock patterns that are shaped by tree species composition, stand structure, and environmental conditions. Here, we investigated typical plantation types in the Mufu Mountain, Hubei Province.
Mingyang Ding   +5 more
wiley   +1 more source

Forest floor vegetation in Sweden [PDF]

open access: yes, 2012
In boreal forests, dwarf-shrubs (Vaccinium spp.) often dominate the forest floor and are key-stone species in ecosystems due to their importance for nutrient cycling and as a major food source for herbivores. Forestry affects the vegetation both directly
Hedvall, Pär-Ola
core  

Unexpected earthworm effects on forest understory plants [PDF]

open access: yesBMC Ecology, 2013
Introduced earthworms are widespread in forests of North America creating significant negative impacts on forest understory communities. However, much of the reported evidence for negative earthworm effects comes from field investigations either comparing invaded and non-invaded forests or across invasion fronts.
Dávalos, Andrea   +3 more
openaire   +2 more sources

Wildfires' Cost for Societal Welfare: Economic Evaluation of Forestry Ecosystem Services Losses in Southern Italy

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Forest ecosystem services (ESs) are garnering increasing public attention as awareness grows regarding society's fundamental dependence on them for well‐being. Forest fires, one of the major disturbances of ESs, are becoming more frequent and destructive, exacerbated in part by climate change.
Emanuele Spada   +6 more
wiley   +1 more source

Seasonal dynamics of lingonberry and blueberry spectra

open access: yesSilva Fennica, 2019
Accurate mapping of the spatial distribution of understory species from spectral images requires ground reference data which represent the prevailing phenological stage at the time of image acquisition.
Petri Forsström   +2 more
doaj   +1 more source

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