Questions:
Popular methods to analyse community–trait–environment relationships constrain community patterns by trait and environment relationships. What if some traits are strongly associated with community composition but unrelated to environmental variables and vice versa? We take a different approach, unconstrained by this assumption using non-parametric methods. We applied this technique to...
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fire
(n = 52 plots) data set. We used the ‘slow and thor-
ough’ NMS autopilot setting, Sørensen
Because of their unique physiology, lichen communities are highly sensitive to climatic conditions, making them ideal bioindicators for climate change. Southeast and south-central Alaska host diverse and abundant lichen communities and are faced with a more rapidly changing climate than many more southerly latitudes. We develop sensitive lichen-based indicators for...
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) used Sørensen (Bray-Curtis) distance, with no penalty for tied ranks and rotation
to principal axes
To survive winter, many perennial plants become endodormant, a state of suspended growth maintained even in favorable growing environments. To understand vegetative bud endodormancy, we collected paradormant, endodormant, and ecodormant axillary buds from Populus trees growing under natural conditions. Of 44,441 Populus gene models analyzed using NimbleGen microarrays, we found...
As decomposers, fungi are key players in recycling plant material in global carbon cycles. We hypothesized that genomes of early diverging fungi may have inherited pectinases from an ancestral species that had been able to extract nutrients from pectin-containing land plants and their algal allies (Streptophytes). We aimed to infer,...
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ancestors of land plants
Ying Chang, Sishuo Wang, Satoshi Sekimoto, Andrea L. Aerts, Cindy Choi, Alicia
Multiple lines of existing evidence suggest that climate change enhances root exudation of organic compounds into soils. Recent experimental studies show that increased exudate inputs may cause a net loss of soil carbon. This stimulation of microbial carbon mineralization ('priming') is commonly rationalized by the assumption that exudates provide a...
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, Lawrence Livermore National Laboratory, 7000 East Ave, L-231, 7
Livermore, CA-94550, USA 8
3 School of
Birds both promote and prosper from forest restoration. The ecosystem functions birds perform can increase the pace of
forest regeneration and, correspondingly, increase the available habitat for birds and other forest-dependent species. The
aim of this study was to learn how tropical forest restoration treatments interact with landscape tree cover...
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matrix to
calculate a Sørensen similarity index: QSij = 2Cij/Si+Sj, where C is
the number of species in
Lichens in the Arctic play important ecological roles. They also face the threats of increasing fire and shrub and tree expansion, exacerbated or caused by climate change. These forces may lead to changes not only in lichen community composition but also in the abundance, diversity and distribution of lichen functional...
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the Sørensen distances among all pairs of
plots. We defined an outlier a priori as a plot with
a
Douglas-fir (Pseudotsuga menziesii) has a wide distribution in North America and is one of the
tree species most widely distributed outside its natural range. The species has been introduced to
Europe, New Zealand, South America, and elsewhere around the world. At present, Douglas-fir
is an accepted and integral part of...
Birds perform valuable ecological functions and are useful environmental indicators. Avian distributions and diversity are predicted to change over the next 50 years. Little information exists on the role of local and regional conditions in fluctuations of avian communities over time. Historic datasets present a legacy of information that helps...
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portion of McFadden
7
Marsh in the William L. Finley National Wildlife Refuge. The mixed