Track topics on Twitter Track topics that are important to you
Plant enemies that attack chemically similar host species are thought to mediate competitive exclusion of chemically similar plants and select for chemical divergence among closely related species. This hypothesis predicts that plant defenses should diverge rapidly, minimizing phylogenetic signal. To evaluate this prediction, we quantified metabolomic similarity for 203 tree species that represent >89% of all individuals in large forest plots in Maryland and Panama. We constructed molecular networks based on mass spectrometry of all 203 species, quantified metabolomic similarity for all pairwise combinations of species, and used phylogenetically independent contrasts to evaluate how pairwise metabolomic similarity varies phylogenetically. Leaf metabolomes exhibited clear phylogenetic signal for the temperate plot, which is inconsistent with the prediction. In contrast, leaf metabolomes lacked phylogenetic signal for the tropical plot, with particularly low metabolomic similarity among congeners. In addition, community-wide variation in metabolomes was much greater for the tropical community, with single tropical genera supporting greater metabolomic variation than the entire temperate community. Our results are consistent with the hypothesis that stronger plant-enemy interactions lead to more rapid divergence and greater metabolomic variation in tropical than temperate plants. Additional community-level foliar metabolomes will be required from tropical and temperate forests to evaluate this hypothesis.
This article was published in the following journal.
Changing forest cover is a key driver of local climate change worldwide, as it affects both albedo and evapotranspiration (ET). Deforestation and forestation are predicted to have opposing influences ...
Specificity is one of the fundamental concepts in ecology. Host specificity of phytophagous insects has been of particular interest because of its crucial role in diversification and life-history evol...
The chronic toxicity of ammonia to tropical freshwater species is under-represented, leading to the use of temperate species to derive water quality guideline values (GV) for tropical regions. Such pr...
To explore possible changes in the community attributes of hematophagous insects as a function of forest disturbance. We compare the patterns of diversity and abundance, plus the behavioral responses ...
Resorption, the process of withdrawing foliar nutrients prior to leaf abscission, is one of the most important nutrient conservation mechanisms in trees. Along with foliar nutrient concentrations, fo...
- The purpose of this study is to determine the efficacy of CAIV-T in a diverse Asian population aged from 6 months to less than 36 months, in tropical and temperate climates, against cult...
The purpose of the study is to assess if the antimalarial drugs Dihydroartemisinine + Piperaquine (DP) are effective in preventing malaria infection for forest ranger
TROPICS1 is a randomized, observer-blind, active comparator-controlled, multi-center, Phase IV trial in 200 participants aged ≥65 years. The control group will receive a standard dose li...
The aim of this study is to confirm the TCM syndrome types and TCM constitution classifications of the patients with intestinal polyps via on-site epidemiological survey, to analyze metabo...
It is a case-control study composed of 3 groups : 2 cases groups (RIF and IRPL) already composed as part of a pre-existing research project and 1 control group including patients undergoin...
A genus of cuttlefish in the family Sepiidae. They live in tropical, subtropical and temperate waters in most oceans.
Tick-borne flavivirus infection occurring in the Kyasanur Forest in India.
A genus of freshwater mussel in the family MYTILIDAE, class BIVALVIA. It is found in tropical and warm temperate coastal waters. Most species have green in their shells.
Small mammals in the family Soricidae, order Soricomorpha (formerly Insectivora). They resemble moles and are characterized by a mobile snout, sharp INCISOR teeth, and are found in tropical and temperate regions worldwide.
A plant family of the order Aristolochiales subclass Magnoliidae class Magnoliopsida. They are mostly tropical woody vines and a few temperate-zone species. The flowers are 3-parted; some species lack petals while others are large and foul smelling.
Tropical Medicine is the study of diseases more commonly found in tropical regions than elsewhere. Examples of these diseases are malaria, yellow fever, Chagas disease, Dengue, Helminths, African trypanosomiasis, Leishmaniasis, Leprosy, Lymphatic filaria...