The enigma of terrestrial primary productivity: measurements, models, scales and the diversity-productivity relationship

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F17%3A10367308" target="_blank" >RIV/00216208:11310/17:10367308 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11620/17:10367308

Result on the web

<a href="http://dx.doi.org/10.1111/ecog.02482" target="_blank" >http://dx.doi.org/10.1111/ecog.02482</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/ecog.02482" target="_blank" >10.1111/ecog.02482</a>

Result language

angličtina

Original language name

The enigma of terrestrial primary productivity: measurements, models, scales and the diversity-productivity relationship

Original language description

Net primary productivity (NPP) is a variable of primary interest to ecologists, as it is related both to resource availability, potentially affecting biological diversity, and to the dynamics of the carbon cycle. However, there are alarming discrepancies in NPP estimates as well as in the reported form of the relationship between NPP and species richness. Such discrepancies could be due to the different and often simplified assumptions of various global NPP models and the heterogeneity of field NPP measurements that comprise a mix of natural vegetation and plantations. Here we review different global models of NPP and available original sources of NPP field measurements in order to examine how their geographic patterns are affected by various assumptions and data selection, respectively. Then we review studies dealing with diversity-productivity relationships in view of different NPP estimates. We show that although NPP does generally decrease with increasing latitude, geographic NPP patterns considerably differ between individual models as well as between the models and field NPP data. Such inconsistencies might be partially responsible for discrepancies in productivity-richness relationships, although these are also driven by other factors that covary with productivity and affect diversity patterns. To reconcile the discrepancies between various NPP measures, it is necessary to 1) standardize field NPP data, 2) develop scaling techniques that bridge the gap between the scale of field NPP measurements and NPP models, and 3) build global NPP models that account for nutrient limitation (especially concerning phosphorus in the tropics) and are parameterized by field measurements. Also, 4) a better theory needs to be developed to distinguish the effect of productivity from the effects of other environmental variables on diversity patterns. Improving our ability to estimate NPP will help us predict future NPP changes and understand the drivers of species richness patterns.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10618 - Ecology

Project

<a href="/en/project/GA16-26369S" target="_blank" >GA16-26369S: Are there limits to diversity? Towards an equilibrium theory of biodiversity</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Ecography

ISSN

0906-7590

e-ISSN

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Volume of the periodical

40

Issue of the periodical within the volume

2

Country of publishing house

DK - DENMARK

Number of pages

14

Pages from-to

239-252

UT code for WoS article

000394668800006

EID of the result in the Scopus database

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