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You searched for: Subject "perennials" Remove constraint Subject: "perennials" Journal Global change biology Remove constraint Journal: Global change biology Publication Year 2019 Remove constraint Publication Year: 2019
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1. Carbon dynamics, net primary productivity and human‐appropriated net primary productivity across a forest–cocoa farm landscape in West Africa

Author:
Morel, Alexandra C.; Adu Sasu, Michael; Adu‐Bredu, Stephen; Quaye, Marvin; Moore, Christine; Ashley Asare, Rebecca; Mason, John; Hirons, Mark; McDermott, Constance L.; Robinson, Elizabeth J. Z.; Boyd, Emily; Norris, Ken; Malhi, Yadvinder
Source:
Global change biology 2019 v.25 no.8 pp. 2661-2677
ISSN:
1354-1013
Subject:
perennials,   etc   ; Theobroma cacao; agroforestry; anthropogenic activities; biosphere; carbon; carbon cycle; cocoa beans; cocoa pods; ecological footprint; ecosystems; farms; humans; land use change; landscapes; leaves; monitoring; net primary productivity; plant litter; shade trees; tropical forests; tropics; Western Africa;     Show all 23 Subjects
Abstract:
... Terrestrial net primary productivity (NPP) is an important metric of ecosystem functioning; however, there are little empirical data on the NPP of human‐modified ecosystems, particularly smallholder, perennial crops like cocoa (Theobroma cacao), which are extensive across the tropics. Human‐appropriated NPP (HANPP) is a measure of the proportion of a natural system's NPP that has either been reduc ...
DOI:
10.1111/gcb.14661

2. Multiscale climate change impacts on plant diversity in the Atacama Desert

Author:
Díaz, Francisca P.; Latorre, Claudio; Carrasco‐Puga, Gabriela; Wood, Jamie R.; Wilmshurst, Janet M.; Soto, Daniela C.; Cole, Theresa L.; Gutiérrez, Rodrigo A.
Source:
Global change biology 2019 v.25 no.5 pp. 1733-1745
ISSN:
1354-1013
Subject:
perennials,   etc   ; DNA; DNA barcoding; climate; climate change; ecosystems; fossils; plant communities; rodents; species diversity; vegetation;     Show all 11 Subjects
Abstract:
... Comprehending ecological dynamics requires not only knowledge of modern communities but also detailed reconstructions of ecosystem history. Ancient DNA (aDNA) metabarcoding allows biodiversity responses to major climatic change to be explored at different spatial and temporal scales. We extracted aDNA preserved in fossil rodent middens to reconstruct late Quaternary vegetation dynamics in the hype ...
DOI:
10.1111/gcb.14583

3. Shrub persistence and increased grass mortality in response to drought in dryland systems

Author:
Winkler, Daniel E.; Belnap, Jayne; Hoover, David; Reed, Sasha C.; Duniway, Michael C.
Source:
Global change biology 2019 v.25 no.9 pp. 3121-3135
ISSN:
1354-1013
Subject:
perennial grasses,   etc   ; Achnatherum hymenoides; Hilaria; Sporobolus cryptandrus; annuals; arid lands; atmospheric precipitation; climate change; community structure; die-off; dominant species; drought; ecological function; ecosystems; environmental factors; forests; grasslands; indigenous species; invasive species; plant communities; plateaus; shrubs; soil water; Southwestern United States;     Show all 24 Subjects
Abstract:
... Droughts in the southwest United States have led to major forest and grassland die‐off events in recent decades, suggesting plant community and ecosystem shifts are imminent as native perennial grass populations are replaced by shrub‐ and invasive plant‐dominated systems. These patterns are similar to those observed in arid and semiarid systems around the globe, but our ability to predict which sp ...
DOI:
10.1111/gcb.14667

4. Strong photosynthetic acclimation and enhanced water‐use efficiency in grassland functional groups persist over 21 years of CO2 enrichment, independent of nitrogen supply

Author:
Pastore, Melissa A.; Lee, Tali D.; Hobbie, Sarah E.; Reich, Peter B.
Source:
Global change biology 2019 v.25 no.9 pp. 3031-3044
ISSN:
1354-1013
Subject:
perennials,   etc   ; C3 plants; C4 plants; acclimation; carbon dioxide; drought; forbs; free air carbon dioxide enrichment; gas exchange; grasses; grasslands; herbaceous plants; leaves; legumes; models; nitrogen; photosynthesis; prediction; stomatal conductance; uncertainty; water use efficiency; Minnesota;     Show all 22 Subjects
Abstract:
... Uncertainty about long‐term leaf‐level responses to atmospheric CO₂ rise is a major knowledge gap that exists because of limited empirical data. Thus, it remains unclear how responses of leaf gas exchange to elevated CO₂ (eCO₂) vary among plant species and functional groups, or across different levels of nutrient supply, and whether they persist over time for long‐lived perennials. Here, we report ...
DOI:
10.1111/gcb.14714