scholarly journals Ecological drivers of spatial community dissimilarity, species replacement and species nestedness across temperate forests

2018 ◽  
Vol 27 (5) ◽  
pp. 581-592 ◽  
Author(s):  
Xugao Wang ◽  
Thorsten Wiegand ◽  
Kristina J. Anderson-Teixeira ◽  
Norman A. Bourg ◽  
Zhanqing Hao ◽  
...  
Keyword(s):  
Temperate Forests ◽  
Species Replacement ◽  
Community Dissimilarity

scholarly journals Contrasting beta diversity and functional composition of aquatic insect communities across local to regional scales in Amazonian streams

2020 ◽  
Author(s):  
Gilberto Nicacio ◽  
Erlane José Cunha ◽  
Neusa Hamada ◽  
Leandro Juen
Keyword(s):  
Beta Diversity ◽  
Geographic Distance ◽  
Aquatic Insect ◽  
Procrustes Analysis ◽  
Functional Composition ◽  
Species Replacement ◽  
Environmental Predictors ◽  
Insect Communities ◽  
Trait Convergence ◽  
Community Dissimilarity

AbstractWe investigated how components of beta diversity (i.e., the turnover and nestedness and functional compositional) aquatic insect assemblages change among sites and are influenced by environmental and spatial drivers. For this, we analyzed beta-diversity and functional composition of Ephemeroptera, Plecoptera, and Trichoptera in 16 streams in two Amazonian basins with distinct environmental conditions (the Carajás and Tapajós regions). We performed Multiple regression on dissimilarity matrices (MRM) and Procrustes analysis to test spatial and environmental influences on the taxonomic and functional composition of communities. Community dissimilarity was most related to variations in geographic distance and topography, which highlighted the environmental distances shaping the communities. Variation in functional composition could be mostly attributed to the replacement of species by those with similar traits, indicating trait convergence among communities. Environmental predictors best-explained species replacement and trait congruence within and between the regions evaluated. In summary, among communities with different taxonomic compositions, the high species replacement observed appears to be leading them to have similar community structure, with species having the same functional composition, even in communities separated by both small and large geographic distances.

Community dissimilarity of angiosperm trees reveals deep‐time diversification across tropical and temperate forests

2021 ◽  
Author(s):  
Buntarou Kusumoto ◽  
Yasuhiro Kubota ◽  
Andrés Baselga ◽  
Carola Gómez‐Rodríguez ◽  
Thomas J. Matthews ◽  
...  
Keyword(s):  
Temperate Forests ◽  
Deep Time ◽  
Time Diversification ◽  
Community Dissimilarity

scholarly journals Root‐derived inputs are major contributors to soil carbon in temperate forests, but vary by mycorrhizal type

2021 ◽  
Author(s):  
Adrienne B. Keller ◽  
Edward R. Brzostek ◽  
Matthew E. Craig ◽  
Joshua B. Fisher ◽  
Richard P. Phillips
Keyword(s):  
Soil Carbon ◽  
Temperate Forests

Molecular identification of True Morels (Morchella spp.) from Hindukush temperate forests of Pakistan

Gene Reports ◽  
2021 ◽  
pp. 101125
Author(s):  
Shahab Ali ◽  
Amna Imran ◽  
Muhammad Fiaz ◽  
Abdul Nasir Khalid ◽  
Shujaul Mulk Khan
Keyword(s):  
Molecular Identification ◽  
Temperate Forests

scholarly journals Do large herbivores maintain open habitats in temperate forests?

2021 ◽  
Vol 494 ◽  
pp. 119310
Author(s):  
Rafał Kowalczyk ◽  
Tomasz Kamiński ◽  
Tomasz Borowik
Keyword(s):  
Temperate Forests ◽  
Large Herbivores

scholarly journals Over half of western United States' most abundant tree species in decline

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Hunter Stanke ◽  
Andrew O. Finley ◽  
Grant M. Domke ◽  
Aaron S. Weed ◽  
David W. MacFarlane
Keyword(s):  
United States ◽  
Tree Species ◽  
Tree Mortality ◽  
Temperate Forests ◽  
Size Structure ◽  
Forest Disturbance ◽  
Population Decline ◽  
Western United States ◽  
Scale Transformation ◽  
Forest Composition

AbstractChanging forest disturbance regimes and climate are driving accelerated tree mortality across temperate forests. However, it remains unknown if elevated mortality has induced decline of tree populations and the ecological, economic, and social benefits they provide. Here, we develop a standardized forest demographic index and use it to quantify trends in tree population dynamics over the last two decades in the western United States. The rate and pattern of change we observe across species and tree size-distributions is alarming and often undesirable. We observe significant population decline in a majority of species examined, show decline was particularly severe, albeit size-dependent, among subalpine tree species, and provide evidence of widespread shifts in the size-structure of montane forests. Our findings offer a stark warning of changing forest composition and structure across the western US, and suggest that sustained anthropogenic and natural stress will likely result in broad-scale transformation of temperate forests globally.

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