Annual cyclicity in high‐resolution stable carbon and oxygen isotope ratios in the wood of the mangrove tree <i>Rhizophora mucronata</i>

Verheyden, Anouk; Helle, Gerhard; Schleser, G.; Dehairs, Frank; Beeckman, Hans; Koedam, Nico

doi:10.1111/j.1365-3040.2004.01258.x

Cited by 106 publications

(96 citation statements)

References 67 publications

(92 reference statements)

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“…In our study we compared trees from different hydrological sites to define how rainfall variations are influencing 13 C fractionation in tropical trees to enable a better interpretation of stable isotope patterns in the wood. At high resolution we found a similar intra-annual pattern that is described for trees from temperate zones (Helle and Schleser 2004) as well as for mangrove trees from Kenya (Verheyden et al 2004b). In all cases, lowest (most negative) d 13 C values were found at the ring boundaries.…”

Section: Discussionsupporting

confidence: 58%

“…As tropical trees undergo the same photosynthetic mechanisms, a carbon isotopic signal reflecting varying hydroclimatic conditions should be stored in their annual increments. Very few studies have been published on the stable-carbon isotope composition of tropical wood, usually with restricted geographical distribution (Tarhule and Leavitt 2004;Verheyden et al 2004b;Hietz et al 2005;Robertson et al 2006;Gebrekirstos et al 2009). In the present study we investigated stablecarbon isotope ratios in wood from Terminalia tree species and two other species growing under different precipitation regimes from 675 to 4,015 mm mean annual precipitation and annually recurring dry periods ranging from zero to seven months.…”

Section: Introductionmentioning

confidence: 99%

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Stable-Carbon Isotope Time Series from Tropical Tree Rings Indicate a Precipitation Signal

2010

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Although studies on stable-carbon isotopes in trees from temperate zones provide abundant paleoclimatic data, tropical trees are still understudied in this context. Therefore this study examined the variability of intra-and inter-annual stable-carbon isotopic pattern in several tree species from various tropical climates. The d 13C values of samples of 12 broadleaved trees (seven species) from various paleotropical and neotropical sites along a climatic moisture gradient were investigated. The inter-annual variability between species and sites was studied. Further the relationship between d 13 C and precipitation time series was analyzed. Results show that tropical tree species show a similar variability in carbon isotopic composition as temperate tree species. Significant correlations between annual precipitation and tree-ring d 13 C time series were negative. Successful crossdating of a tree-ring d 13 C time series highlights the potential of carbon isotope measurements for tropical tree-ring analytical studies. Tropical broadleaved trees are able to capture a carbon isotopic signal in their annual rings even under everwet conditions and show good potential for paleoclimatic research.

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Section: Discussionsupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Stable-Carbon Isotope Time Series from Tropical Tree Rings Indicate a Precipitation Signal

2010

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“…Recently, high-resolution stable isotope ratio measurements have revealed seasonal cycles that may be employed to date tree samples as well (e.g. Anchukaitis et al 2008;Verheyden et al 2004a). It has been shown that crossdating alone cannot prove the annual nature of tree rings if the correlation between the ring width series is low ).…”

Section: Dendrochronology Outside Temperate and Boreal Regionsmentioning

confidence: 99%

Dendrochronology in the dry tropics: the Ethiopian case

Wils

Sass‐Klaassen

Eshetu

et al. 2010

Trees

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Dendrochronology is developing outside temperate and boreal regions. Over the past decade substantial progress has been made in Mediterranean and wet tropical regions. However, research in dry tropical regions, notably those of sub-Saharan Africa, has remained fragmentary. Here, we try to identify the unique challenges and opportunities of dendrochronology in the dry tropics. First, we briefly review the status of dendrochronology outside temperate and boreal regions with an emphasis on subSaharan Africa. Subsequently, we focus upon one of those areas where dendrochronology in the dry tropics is at the forefront of scientific advance: Ethiopia. A detailed review of tree ring studies in the lowlands and highlands highlights the complexity of ring formation and made us identify four major types of growth ring expression: anatomically not Trees DOI 10.1007/s00468-010-0521-y distinct rings, multiple rings per year, annual rings and multiple missing rings. This complex tree growth behaviour is associated with large-scale variations in precipitation regime (unimodal to multimodal) and relatively small-scale variations in tree sensitivity to water availability. Literature results are used to develop a scheme that can be used to predict differences in growth ring formation along gradients in these two factors. Because of the exceptional growth sensitivity of and the importance of local site conditions (topography, biological factors, etc.) for most trees sampled, those growing at the limits of their ecological amplitude are prone to possess multiple rings per year or multiple missing rings. In such circumstances, site selection should not always take place at the limits of the ecological amplitude of a species, but may sometimes have to be diverted to more mesic environments. Successful studies are now appearing, such as those reporting correlations between tree ring chronologies and Blue Nile river flows.

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“…This technique can also be applied where posited "growth rings" cannot be shown to be annual. Annual oxygen isotope cycles have been identified in lowland tropical forests (12,14), and at Monteverde we have previously demonstrated that variation between the summer wet season and the cloud-dominated winter dry season is sufficient to induce an annual δ 18 O cycle along the radial xylem growth of cloud forest trees (13). The δ 18 O of cellulose in cloud forest trees reflects the seasonal change in the δ 18 O of source water as determined by the amount of rainfall and the 18 O-enrichment of cloud water.…”

Section: Approachmentioning

confidence: 99%

Tropical cloud forest climate variability and the demise of the Monteverde golden toad

Anchukaitis

Evans

2010

Proc. Natl. Acad. Sci. U.S.A.

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Widespread amphibian extinctions in the mountains of the American tropics have been blamed on the interaction of anthropogenic climate change and a lethal pathogen. However, limited meteorological records make it difficult to conclude whether current climate conditions at these sites are actually exceptional in the context of natural variability. We use stable oxygen isotope measurements from trees without annual rings to reconstruct a century of hydroclimatology in the Monteverde Cloud Forest of Costa Rica. High-resolution measurements reveal coherent isotope cycles that provide annual chronological control and paleoclimate information. Climate variability is dominated by interannual variance in dry season moisture associated with El Niño Southern Oscillation events. There is no evidence of a trend associated with global warming. Rather, the extinction of the Monteverde golden toad ( Bufo periglenes ) appears to have coincided with an exceptionally dry interval caused by the 1986–1987 El Niño event.

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Annual cyclicity in high‐resolution stable carbon and oxygen isotope ratios in the wood of the mangrove tree Rhizophora mucronata

Cited by 106 publications

References 67 publications

Stable-Carbon Isotope Time Series from Tropical Tree Rings Indicate a Precipitation Signal

Stable-Carbon Isotope Time Series from Tropical Tree Rings Indicate a Precipitation Signal

Dendrochronology in the dry tropics: the Ethiopian case

Tropical cloud forest climate variability and the demise of the Monteverde golden toad

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