Results 41 to 50 of about 41,272 (301)

Divergent tree radial growth at alpine coniferous forest ecotone and corresponding responses to climate change in northwestern China

open access: yes, 2021
Global climate change is reshaping the geographical distribution of forests, especially in mountain regions. The alpine forest ecotone is expected to be affected first, due to the climatic limitations on tree growth, and is thus considered as an ...
Xiaofeng Wang, Bao Yang
semanticscholar   +1 more source

Regional patterns and controlling factors in plant species composition and diversity in Canadian lowland coastal bogs and laggs [PDF]

open access: yesMires and Peat, 2016
Inventories of natural assemblages of plant species are critical when planning ecological restoration of bogs. However, little is known about the regional variation in plant communities at the margins (laggs) of bogs, even though they are an integral ...
S.A. Howie   +2 more
doaj   +1 more source

The biodiversity audit approach challenges regional priorities and identifies a mismatch in conservation [PDF]

open access: yes, 2012
1. Despite a strong uptake of evidence-based approaches, conservation often proceeds from a grossly incomplete understanding of species priorities. To optimize conservation impact within a biogeographical region, quantitative knowledge is needed of the ...
Dolman, Paul   +2 more
core   +1 more source

A comparison of presettlement and modern forest composition along an elevation gradient in central New Hampshire [PDF]

open access: yes, 2011
Tree species composition is influenced not only by edaphic and climatic factors but also by natural and human-caused disturbances. To understand interactions among these influences, we compared forest species composition data from the time of European ...
Cogbill, Charles V.   +3 more
core   +3 more sources

Climate change evidence in tree growth and stand productivity at the upper treeline ecotone in the Polar Ural Mountains

open access: yesForest Ecosystems, 2020
Background Recent warming is affecting species composition and species areal distribution of many regions. However, although most treeline studies have estimated the rates of forest expansion into tundra, still little is known about the long-term dynamic
N. Devi   +4 more
semanticscholar   +1 more source

The Behavior of Atlanticus Testaceus (Orthoptera: Tettigoniidae) on the E.S. George Reserve, Michigan [PDF]

open access: yes, 2017
Several reports deal in part with the systematics, distribution, or habits of one or another of the shield-backed katydids of the orthopteran genus Atlanticus.
Gangwere, S. K.
core   +2 more sources

Seascape ecology in the vicinity of a Blake Ridge cold seep

open access: yesFrontiers in Marine Science, 2023
Systematic surveys of the distribution of epibenthic megafaunal species relative to one another and to environmental variables in the deep sea can lead to inferences and testable hypotheses regarding factors that influence their distributions.
Kellie Johnson   +8 more
doaj   +1 more source

Genotype-environment associations support a mosaic hybrid zone between two tidal marsh birds [PDF]

open access: yes, 2015
Local environmental features can shape hybrid zone dynamics when hybrids are bounded by ecotones or when patchily distributed habitat types lead to a corresponding mosaic of genotypes.
Kovach, Adrienne I.   +4 more
core   +3 more sources

Comparing Physical Collection and Environmental DNA Methods for Determining Abundance Patterns of Gammarus Species along an Estuarine Gradient

open access: yesDiversity, 2023
Estuaries are productive systems with rapid changes in natural stressors, such as salinity, that make perturbation detection challenging. Amphipods are vital to estuarine assemblages and may serve as anthropogenic stress indicators.
Kyle M. Knysh   +5 more
doaj   +1 more source

Human activities accelerated the degradation of saline seepweed red beaches by amplifying top‐down and bottom‐up forces [PDF]

open access: yes, 2018
Salt marshes dominated by saline seepweed (Suaeda heteroptera) provide important ecosystem services such as sequestering carbon (blue carbon), maintaining healthy fisheries, and protecting shorelines. These salt marshes also constitute stunning red beach
Chen, Luzhen   +10 more
core   +3 more sources

Home - About - Disclaimer - Privacy