The abundance of natural nitrogen 15 in the organic matter of soils along an altitudinal gradient (Chablais, Haute Savoie, France)

Mariotti, André; Pierre, Daniel; Védy, J.-C.; Bruckert, S.; Guillemot, Joannès

doi:10.1016/s0341-8162(80)80020-8

Cited by 115 publications

(58 citation statements)

References 6 publications

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“…Far less is known about altitudinal patterns of d 15 N in foodwebs, if any, but the high spatial variability in this isotope due to a variety of other factors such as plant community, climate, soil type, and soil processes makes its potential use for tracing altitudinal movements of birds problematic (Nadelhoffer and Fry 1994;Hobson 1999a). However, there has been limited evidence that soil d 15 N values may become more negative with altitude at a given location (Mariotti et al 1980) and that these patterns may also be reflected in local foodwebs (Gröcke et al 1997).…”

Section: Introductionmentioning

confidence: 99%

Stable isotopes as indicators of altitudinal distributions and movements in an Ecuadorean hummingbird community

Hobson¹,

et al. 2003

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Altitudinal migration and dispersal is an important component of the life history of several temperate and tropical birds but remains poorly understood due to the limited success of mark and recapture techniques. Stable isotopes of hydrogen (deltaD) in rainfall, and to a lesser extent, carbon (delta13C) in plants are known to change with altitude and hence may provide the basis of a technique for tracking the altitudinal movements in birds and other wildlife. We investigated the potential for this technique by measuring delta13C, deltaD, and delta15N values in tail feathers of eight species of hummingbirds ( Phaethornis malaris, P. syrmatophorus, P. guy, Adelomyia melanogenys, Coeligena torquata, C. lutetiae, Metallura baroni, M. williami) along an altitudinal gradient (300-3,290 m asl) in the Andes Mountains of Ecuador. Feather delta13C and deltaD values were correlated and each changed significantly with elevation above 400 m. In general, we found good agreement between feather deltaD values and those predicted from a generalized relationship of precipitation and surface water deltaD with altitude. Similarly, feather delta13C values showed an enrichment of approximately 1.5 per thousand per 1,000 m over the linear portion of the elevational response. Stable-nitrogen isotope values were variable, and so did not provide useful information on elevation in birds, apart from trophic effects. Overall there appears to be good potential for using the (deltaD, delta13C) stable isotope approach to track altitudinal movements and to elucidate previously unrecognized patterns of life history variation in both temperate and tropical species that migrate across elevational isotopic gradients.

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Section: Introductionmentioning

confidence: 99%

Stable isotopes as indicators of altitudinal distributions and movements in an Ecuadorean hummingbird community

Hobson¹,

et al. 2003

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“…A large body of work exists thatstudues changes in nitrogen isotopic compositions in various plants under different environmental conditions (Pardo et al, 2006;Amundson et al, 2003;Mariotti et al, 1980;Austin and Vitousek, 1998;Austin and Sala, 1999;Handley et al, 1999;Swap et al, 2004;Aranibar et al, 2004;. However, few studies concentrate on changes in nitrogen isotopic compositions throughout the whole lifecycle of plants.…”

Section: N Values During Growing Time and Its Influencing Factorsmentioning

confidence: 99%

“…One is come from plant uptake nitrogen from a medium into root cells the other lies in subsequent enzymatic assimilation into other nitrogen forms (Mariotti et al, 1980;1982 -available for assimilation into the leaf is greater than that for the root when the enriched nitrogen in 15 N is transferred to the leaf and assimilated. Nitrogen reallocation during plant growth can lead to differences among plant organs, because most biochemical reactions in plant tissues discriminate against 15 N. NO 3 -reduction, GS-GOGAT, transaminations and other enzymatic reactions could result in products with lower δ…”

Section: N Andmentioning

confidence: 99%

“…During nitrogen surging of the plant, its δ 15 N values correlate with changes in the physiological characteristics of the plant (Mariotti et al, 1980;1982;Evans et al, 1996), the sources of nitrogen and the surrounding environment (Högberg, 1997;Handley et al, 1997;Austin and Vitousek, 1998;Yoneyama, 1996;Amundson et al, 2003;Pardo et al, 2006;Aranibar et al, 2008;Mayor et al, 2014). Consequently, the plant's δ 15 N composition can be used as a marker to evaluate direction and rate of ecological processes related to isotope fractionation (Tiunov, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the results of a past study suggested that δ 15N values of plants and soils became low caused by high rainfall and low temperature at high altitude localities (Mariotti et al, 1980). However, Craine et al (2015) found that δ 15 N became enriched with dropping MAP and ascending MAT as MAT is over -0.5°C.…”

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confidence: 97%

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Stable Nitrogen Isotopic Changes in Winter Wheat (<i>Triticum aestivum</i> L.) Induced by its Growth Temperature

Wang¹,

Liu²,

Hao³

2017

American Journal of Agricultural and Biological Sciences

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The nitrogen dynamics of plants can be quantified using the variation in their δ 15 N level. This reveals details of plant physiological characteristics and the relationship between plants and their growth conditions. To better understand plant nitrogen dynamics and the effects of external temperature changes on their nitrogen isotopic composition, we investigated the δ 15 N characteristics in Triticum aestivum and its mother soils during the plant's life cycle. We found that under field conditions, the plant's leaves and roots δ 15 N significantly changed. The δ 15 N values in Triticum aestivum changed from -1.6‰ to -8.1‰ for leaves and from -2.0‰ to -8.8‰ for roots, respectively. δ15 N values for both, the leaves and roots were positively correlated with temperature. However, the foliar δ 15 N corresponded more strongly to air temperature, while the root δ 15 N corresponded to soil temperature. δ 15 N values of leaf and root both changed around 0.2‰ in response to a 1 degree change in temperature. Plant roots or shoot material cannot reflect the whole plant δ 15 N values due to a considerable difference between the δ 15 N values of root and leaf. However, the variations in leaf and root δ 15 N provide useful proxies to trace seasonal plant nitrogen cycles.

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Stable isotope analyses in human nutritional ecology

Schwarcz

Schoeninger

1991

Am. J. Phys. Anthropol.

512

357

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KEY WORDS composition ABSTRACTExtracting nutrients is of upmost importance to the survival of any individual or species. One of the distinguishing characteristics of the order Primates is the vast range of nutritional adaptations it exhibits. Within our own species all manner of adaptations are practiced and it has been a major focus of research to determine when and where these various patterns originated. We present one method based on stable isotope analysis in human tissues and discuss its contributions. The ratios of l3C/''C and 15N/14N vary among various pools (i.e., the atmosphere, the oceans, plant communities, trophic levels). These differences are transferred to humans via the foods they eat. The major differences in carbon occur between two photosynthetic pathways (C3 and C4), which in the New World permits tracing the introduction of maize (a C4 plant) and in Asia permits tracing the introduction of millet (also a C4 plant). The marine and terrestrial systems have distinctive isotope ratios of both carbon and nitrogen. Thus, the dependence on marine resources has been traced throughout several areas of the New and Old Worlds. We discuss several potential sources of variation including sex, age, nutritional status, among others. We conclude with some suggestions for future research.Carbon, Nitrogen, Stable isotopes, Nutritional ecology, Bone Food and sex, i.e., the ways in which animals obtain access to necessary nutrients and to mates, are the most basic aspects of animal behavior. One can argue that the study of food is primary since without the former the latter becomes irrelevant. In the most recent edition of Human Biology (Harrison et al., 1988), Baker's overview of the variety of methods employed by humans to extract nutrients suggests that dietary adaptability may be the key to the overall success of our species. Humans are able to survive as complete carnivores (e.g., Eskimos), herbivores (e.g., certain cultural/religious groups in India), and almost any combination of these two extremes. The order Primates displays an enormous range of dietary adaptations and it does not seem too extreme to suggest that such dietary flexibility may have been an important component in the spread of our order, the emergence of our genus, Homo, the evolution of our own species, Homo sapiens, and the variety of socialleconomic/cultural modes of organization evident among humans today.Physical anthropologists have focused on the diets of living humans and other primates and also on recent and not so recent human and primate ancestors. The methods utilized for assessing varieties of foods consumed have been extremely diverse, but can be categorized into two basic types. The first applies to groups, whether the group be a population or species. Group assessment methods include consideration of body size constraints on nutritional requirements (e.g., Fleagle, 0 1991 Wiley-Liss, Inc.

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The abundance of natural nitrogen 15 in the organic matter of soils along an altitudinal gradient (Chablais, Haute Savoie, France)

Cited by 115 publications

References 6 publications

Stable isotopes as indicators of altitudinal distributions and movements in an Ecuadorean hummingbird community

Stable isotopes as indicators of altitudinal distributions and movements in an Ecuadorean hummingbird community

Stable Nitrogen Isotopic Changes in Winter Wheat (<i>Triticum aestivum</i> L.) Induced by its Growth Temperature

Stable isotope analyses in human nutritional ecology

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