SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Silman A) ;hsvcat:4"

Sökning: WFRF:(Silman A) > Lantbruksvetenskap

  • Resultat 1-2 av 2
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • ter Steege, Hans, et al. (författare)
  • Mapping density, diversity and species-richness of the Amazon tree flora
  • 2023
  • Ingår i: COMMUNICATIONS BIOLOGY. - 2399-3642. ; 6:1
  • Tidskriftsartikel (refereegranskat)abstract
    • Using 2.046 botanically-inventoried tree plots across the largest tropical forest on Earth, we mapped tree species-diversity and tree species-richness at 0.1-degree resolution, and investigated drivers for diversity and richness. Using only location, stratified by forest type, as predictor, our spatial model, to the best of our knowledge, provides the most accurate map of tree diversity in Amazonia to date, explaining approximately 70% of the tree diversity and species-richness. Large soil-forest combinations determine a significant percentage of the variation in tree species-richness and tree alpha-diversity in Amazonian forest-plots. We suggest that the size and fragmentation of these systems drive their large-scale diversity patterns and hence local diversity. A model not using location but cumulative water deficit, tree density, and temperature seasonality explains 47% of the tree species-richness in the terra-firme forest in Amazonia. Over large areas across Amazonia, residuals of this relationship are small and poorly spatially structured, suggesting that much of the residual variation may be local. The Guyana Shield area has consistently negative residuals, showing that this area has lower tree species-richness than expected by our models. We provide extensive plot meta-data, including tree density, tree alpha-diversity and tree species-richness results and gridded maps at 0.1-degree resolution. A study mapping the tree species richness in Amazonian forests shows that soil type exerts a strong effect on species richness, probably caused by the areas of these forest types. Cumulative water deficit, tree density and temperature seasonality affect species richness at a regional scale.
  •  
2.
  • Huaraca Huasco, Walter, et al. (författare)
  • Seasonal production, allocation and cycling of carbon in two mid-elevation tropical montane forest plots in the Peruvian Andes
  • 2014
  • Ingår i: Plant Ecology & Diversity. - : Informa UK Limited. - 1755-0874 .- 1755-1668. ; 7:1-2, s. 125-142
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Tropical montane cloud forests (TMCF) are unique ecosystems with high biodiversity and large carbon reservoirs. To date there have been limited descriptions of the carbon cycle of TMCF. Aims: We present results on the production, allocation and cycling of carbon for two mid-elevation (1500-1750 m) tropical montane cloud forest plots in San Pedro, Kosnipata Valley, Peru. Methods: We repeatedly recorded the components of net primary productivity (NPP) using biometric measurements, and autotrophic (R-a) and heterotrophic (Rh) respiration, using gas exchange measurements. From these we estimated gross primary productivity (GPP) and carbon use efficiency (CUE) at the plot level. Results: The plot at 1500 m was found very productive, with our results comparable with the most productive lowland Amazonian forests. The plot at 1750 m had significantly lower productivity, possibly because of greater cloud immersion. Both plots had similar patterns of NPP allocation, a substantial seasonality in NPP components and little seasonality in R-a. Conclusions: These two plots lie within the ecotone between lower and upper montane forests, near the level of the cloud base. Climate change is likely to increase elevation of the cloud base, resulting in shifts in forest functioning. Longer-term surveillance of the carbon cycle at these sites would yield valuable insights into the response of TMCFs to a shifting cloud base.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-2 av 2
Typ av publikation
tidskriftsartikel (2)
Typ av innehåll
refereegranskat (2)
Författare/redaktör
Malhi, Yadvinder (2)
Farfan-Rios, William (2)
Metcalfe, Dan (1)
Phillips, Oliver L. (1)
Carvalho, Fernanda A ... (1)
ter Steege, Hans (1)
visa fler...
Damasco, Gabriel, 19 ... (1)
Aragão, Luiz E. O. C ... (1)
Barlow, Jos (1)
Berenguer, Erika (1)
Balslev, Henrik (1)
Holmgren, Milena (1)
Feeley, Kenneth J. (1)
Metcalfe, Daniel (1)
Huamantupa-Chuquimac ... (1)
Rivas-Torres, Gonzal ... (1)
Girardin, Cecile A. ... (1)
de Aguiar, Daniel P. ... (1)
Ahuite Reategui, Man ... (1)
Albuquerque, Bianca ... (1)
Alonso, Alfonso (1)
do Amaral, Dário Dan ... (1)
do Amaral, Iêda Leão (1)
Andrade, Ana (1)
de Andrade Miranda, ... (1)
Araujo-Murakami, Ale ... (1)
Arroyo, Luzmila (1)
Aymard C, Gerardo A. (1)
Baider, Cláudia (1)
Bánki, Olaf S. (1)
Baraloto, Chris (1)
Barbosa, Edelcilio M ... (1)
Barbosa, Flávia Rodr ... (1)
Brienen, Roel (1)
Camargo, José Luís (1)
Campelo, Wegliane (1)
Cano, Angela (1)
Cárdenas, Sasha (1)
Cárdenas López, Dair ... (1)
Carrero Márquez, Yrm ... (1)
Casas, Luisa Fernand ... (1)
Castellanos, Hernán (1)
Castilho, Carolina V ... (1)
Cerón, Carlos (1)
Chave, Jerome (1)
Comiskey, James A. (1)
Cornejo Valverde, Fe ... (1)
Correa, Diego F. (1)
Costa, Flávia R.C. (1)
Dallmeier, Francisco (1)
visa färre...
Lärosäte
Göteborgs universitet (1)
Lunds universitet (1)
Sveriges Lantbruksuniversitet (1)
Språk
Engelska (2)
Forskningsämne (UKÄ/SCB)
Lantbruksvetenskap (2)Ta bort avgränsningen
Naturvetenskap (1)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy