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30 Titles Match Your Query
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1. IAI-Data-CRN_012-Chile: Comparison of principal ecosystem functions in forests of contrasting biodiversity in Chile and Argentina [IAIDIS752]   PARENT DIF
The main objective of this work is to compare principal ecosystem functions in forests of contrasting biodiversity (low in Argentina, high in Chile) and primary productivity in southern temperate ...


2. IAI-Data-CRN_012_Altesor_Grass: Changes in diversity, floristic composition and plant traits of the major life forms in five Uruguayan grasslands [IAIDIS766]   PARENT DIF
Our objectives were to analyse the changes in diversity, floristic composition and plant traits of the major life forms (graminoids and forbs) in response to nine years of grazing exclosure in five ...


3. IAI-Data-CRN_012_Altesor_Grazing: impact of grazing-induced changes in species composition and community structure of a grassland in the Campos region, Uruguay [IAIDIS768]   PARENT DIF
In this study, we analyzed the impact of grazing-induced changes in species composition and community structure upon the productivity of a grassland in the Campos region, Uruguay. We compared three ...


4. IAI-Data-CRN_012_Austin_BIOD-MESOF: Relationship between above- and belowground diversity in an undisturbed temperate forest in southern Argentina (Patagonia) [IAIDIS762]   PARENT DIF
Recent interest in the relationship between biodiversity and ecosystem functioning has resulted in a multitude of large-scale manipulative experiments examining the effect of aboveground diversity ...


5. IAI-Data-CRN_012_Austin_BIOD-NITR: Effects of autotrophic nitrification on C and N cycling in the Patagonian steppe [IAIDIS764]   PARENT DIF
Human activities are altering biodiversity and the N cycle globally, affecting marine and terrestrial carbon cycling. Only a few specialized bacteria carry out nitrification in terrestrial ecosystems, ...


6. IAI-Data-CRN_012_Austin_GRASS-DEC: Relative importance of dominant grass species in a water-limited ecosystem in the Patagonian steppe [IAIDIS758]   PARENT DIF
Changes in biodiversity due to human impact of domestic grazers are occurring in many parts of the world, and the net effect of this change could have detrimental effects on ecosystem functioning. ...


7. IAI-Data-CRN_012_Austin_POSIT-DEC: The importance of position of senescent material on decomposition and nutrient release [IAIDIS760]   PARENT DIF
The importance of standing dead material, including coarse woody debris in forests, has been shown to be important in the regeneration of forests, and critical for maintaining a variety of ecosystem ...


8. IAI-Data-CRN_012_Baruch_Invaders: Response of a native Neotropical savanna grass and two African invaders to high CO2, drought, herbivory and fire [IAIDIS754]   PARENT DIF
The invaders project analyzed the response of a native Neotropical savanna grass (Trachypogon plumosus) and two African invaders (Hyparrhenia rufa and Melinis minutiflora) to high CO2, drought, herbivory ...


9. IAI-Data-CRN_012_Baruch_gradients: Responses of 130 species to water and nutrient availability gradients in Venezuelan savannas [IAIDIS756]   PARENT DIF
The gradient project studies the responses of 130 species to water and nutrient availability gradients in Venezuelan savannas. Specific leaf area and nutrient content, gas exchange and 15N and 13C ...


10. IAI-Data-CRN_012_Covalschi_hs: Regional and local controls of vegetation spatial-heterogeneity in the Patagonian steppe [IAIDIS742]   PARENT DIF
The objective of this study was to determine regional and local controls of vegetation spatial-heterogeneity in the Patagonian steppe. We considered two possible factors, rainfall and ovine herbivory. ...


11. IAI-Data-CRN_012_DIRZO_PLANTDIV: Variation in florisitc diversity in tropical and temperate ecosystems [IAIDIS770]   PARENT DIF
This component of the CRN explores the variation in florisitc diversity in tropical and temperate ecosystems located on the northernost distribution of the Neotropics. Sampling protocol is based on ...


12. IAI-Data-CRN_012_Frank: An index of bacteria genetic richness generated from Terminal Restriction Fragment Length Polymorphism (TRFLP) analysis [IAIDIS772]   PARENT DIF
The data file consists of the numbers of fragments, an index of bacteria genetic richness, generated from Terminal Restriction Fragment Length Polymorphism (TRFLP) analysis of grassland soils collected ...


13. IAI-Data-CRN_012_GPolo_CL72: Vegetation effects on soil in an arid ecosystem in the Patagonian steppe [IAIDIS734]   PARENT DIF
The vegetation affects the soil beneath, and these changes could be important in arid ecosystems. The patagonian steppe is characterized by patches of grasses and shrubs. The objective of this study ...


14. IAI-Data-CRN_012_Marches_Ch_Biomas: Impact of flowering and death of the bamboo Chusquea culeou [IAIDIS774]   PARENT DIF
During 2001 a native forest in the South of Argentina experienced the massive flowering and death of the bamboo Chusquea culeou, a dominant understory species. We proposed to assess the impact of ...


15. IAI-Data-CRN_012_Marchesini: Foliar damage during the massive flowering and death of the bamboo Chusquea culeou [IAIDIS776]   PARENT DIF
During 2001 a native forest in the South of Argentina experienced the massive flowering and death of the bamboo Chusquea culeou, a dominant understory species. We proposed to assess the impact of ...


16. IAI-Data-CRN_012_Marchesini_Chusqu: Monitoring of the demography of Chusquea culeou seedlings [IAIDIS778]   PARENT DIF
During 2001 a native forest in the South of Argentina experienced the massive flowering and death of the bamboo Chusquea culeou, a dominant understory species. We proposed to assess the impact of ...


17. IAI-Data-CRN_012_Marchesini_Clim: Climate conditions during the massive flowering and death of the bamboo Chusquea culeou [IAIDIS780]   PARENT DIF
During 2001 a native forest in the South of Argentina experienced the massive flowering and death of the bamboo Chusquea culeou, a dominant understory species. We proposed to assess the impact of ...


18. IAI-Data-CRN_012_Marchesini_Notho: Growth and the herbivory of Nothofagus nervosa seedlings [IAIDIS782]   PARENT DIF
During 2001 a native forest in the South of Argentina experienced the massive flowering and death of the bamboo Chusquea culeou, a dominant understory species. We proposed to assess the impact of ...


19. IAI-Data-CRN_012_Marchesini_Soil_Temp: Soil temperature recorded during the massive flowering and death of the bamboo Chusquea culeou [IAIDIS784]   PARENT DIF
During 2001 a native forest in the South of Argentina experienced the massive flowering and death of the bamboo Chusquea culeou, a dominant understory species. We proposed to assess the impact of ...


20. IAI-Data-CRN_012_Marchesini_Water: Gravimetric soil water content during the massive flowering and death of the bamboo Chusquea culeou [IAIDIS786]   PARENT DIF
During 2001 a native forest in the South of Argentina experienced the massive flowering and death of the bamboo Chusquea culeou, a dominant understory species. We proposed to assess the impact of ...


21. IAI-Data-CRN_012_Marchesini_ch_ad: Density of Chusquea culeou adult in 50 m. transect [IAIDIS788]   PARENT DIF
During 2001 a native forest in the South of Argentina experienced the massive flowering and death of the bamboo Chusquea culeou, a dominant understory species. We proposed to assess the impact of ...


22. IAI-Data-CRN_012_Marchesini_ch_cov: Basal cover of Chusquea culeou [IAIDIS790]   PARENT DIF
During 2001 a native forest in the South of Argentina experienced the massive flowering and death of the bamboo Chusquea culeou, a dominant understory species. We proposed to assess the impact of ...


23. IAI-Data-CRN_012_FLOMBAUM_COV-BIOM: Estimate of aboveground net primary production and biomass measuring vegetation cover [IAIDIS726]   PARENT DIF
Our objective was to develop a fast and nondestructive method to estimate aboveground net primary production and biomass measuring vegetation cover. We double sampled vegetation cover and biomass ...


24. IAI-Data-CRN_012_FLOMBAUM_DRF: Testing the biodiversity-productivity hypothesis in the Patagonian steepe [IAIDIS728]   PARENT DIF
We tested the biodiversity-productivity hypothesis that states that increasing species richness results in increasing ecosystem functioning. We created a richness gradient by removing species in the ...


25. IAI-Data-CRN_012_FLOMBAUM_SPEF: Characterization of dominant Patagonian species [IAIDIS730]   PARENT DIF
We characterize dominant Patagonian species based in several attributes that influence the ecosystem functioning. Species were characterized by their potential mineralization, their effects on soil ...


26. IAI-Data-CRN_012_FSouto_MFaun: Collection of microarthropods in a Nothofagus mixed forest. [IAIDIS732]   PARENT DIF
The study was conducted in a Nothofagus mixed forest, in the Lanin National Park, near San Martin de los Andes, Argentina. We identified four types of microsites, or etree triaglesi defined by the ...


27. IAI-Data-CRN_012_Sala_Clim: Meteorological data from Rio Mayo, Province of Chubut, Argentina [IAIDIS736]   PARENT DIF
Meteorological data from Rio Mayo, Province of Chubut, Argentina. Rio Mayo is located at 45 41S and 70 16W and an elevation of 500m. Climatic data is organized daily and bi-hourly. Daily values are ...


28. IAI-Data-CRN_012_Sala_PozosN: Aboveground and belowground nitrogen cycle in the Patagonian steppe [IAIDIS740]   PARENT DIF
The general objective of this experiment was to describe the aboveground and belowground nitrogen cycle in the Patagonian steppe. We used the Patagonian steppe as a model ecosystem because of the ...


29. IAI-Data-CRN_012_VIVANCO_TRIA: Effect of aboveground diversity on belowground processes in Patagonia [IAIDIS738]   PARENT DIF
We examined the effect of aboveground diversity on belowground processes. Our hypothesis is that aboveground diversity produces long-term effects on soil biota and carbon and nitrogen pools that consequently ...


30. IAI-Data-CRN_012_Yahdjian_drought: Drought effects on ecosystem functioning in a semiarid grass-shrub steppe South of Argentina [IAIDIS744]   PARENT DIF
We studied drought effects on ecosystem functioning in a semiarid grass-shrub steppe South of Argentina. We designed a 2-year rainfall manipulation experiment where we decreased water input with rainout ...


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