| |
Records |
Links |
|
Author |
Cecilia Blundo ; Julieta Carilla ; Ricardo Grau ; Agustina Malizia ; Lucio Malizia ; Oriana Osinaga-Acosta ; Michael Bird ; Bradford, Matt ; Damien Catchpole ; Andrew Ford ; Andrew Graham ; David Hilbert ; Jeanette Kemp ; Susan Laurance ; William Laurance ; Francoise Yoko Ishida ; Andrew Marshall ; Catherine Waite ; Hannsjoerg Woell ; Jean-Francois Bastin ; Marijn Bauters ; Hans Beeckman ; Pfascal Boeckx ; Jan Bogaert ; Charles De Canniere ; Thales de Haulleville ; Jean-Louis Doucet ; Olivier Hardy ; Wannes Hubau ; Elizabeth Kearsley ; Hans Verbeeck ; Jason Vleminckx ; Steven W. Brewer ; Alfredo Alarc´on ; Alejandro Araujo-Murakami ; Eric Arets ; Luzmila Arroyo ; Ezequiel Chavez ; Todd Fredericksen ; Ren´e Guill´en Villaroel ; Gloria Gutierrez Sibauty ; Timothy Killeen ; Juan Carlos Licona ; John Lleigue ; Casimiro Mendoza ; Samaria Murakami ; Alexander Parada Gutierrez ; Guido Pardo ; Marielos Pena-Claros ; Lourens Poorter ; Marisol Toledo ; Jeanneth Villalobos Cayo ; Laura Jessica Viscarra ; Vincent Vos ; Jorge Ahumada ; Everton Almeida ; Jarcilene Almeida aq, Edmar Almeida de Oliveira ; Wesley Alves da Cruz ; Atila Alves de Oliveira ; Fabrício Alvim Carvalho ; Flavio Amorim Obermuller ; Ana Andrade ; Fernanda Antunes Carvalho ; Simone Aparecida Vieira ; Ana Carla Aquino ; Luiz Aragao ; Ana Claudia Araújo ; Marco Antonio Assis ; Jose Ataliba Mantelli Aboin Gomes ; Fabrício Baccaro ; Plínio Barbosa de Camargo ; Paulo Barni ; Jorcely Barroso ; Luis Carlos Bernacci ; Kauane Bordin ; Marcelo Brilhante de Medeiros ; Igor Broggio ; Jose Luís Camargo ; Domingos Cardoso ; Maria Antonia Carniello ; Andre Luis Casarin Rochelle ; Carolina Castilho ; Antonio Alberto Jorge Farias Castro ; Wendeson Castro ; Sabina Cerruto Ribeiro ; Flavia Costa ; Rodrigo Costa de Oliveira ; Italo Coutinho ; John Cunha ; Lola da Costa ; Lucia da Costa Ferreira ; Richarlly da Costa Silva ; Marta da Graça Zacarias Simbine ; Vitor de Andrade Kamimura ; Haroldo Cavalcante de Lima ; Lia de Oliveira Melo ; Luciano de Queiroz ; Jose Romualdo de Sousa Lima ; Mario do Espírito Santo ; Tomas Domingues ; Nayane Cristina dos Santos Prestes ; Steffan Eduardo Silva Carneiro ; Fernando Elias ; Gabriel Eliseu ; Thaise Emilio ; Camila Laís Farrapo ; Letícia Fernandes ; Gustavo Ferreira ; Joice Ferreira ; Leandro Ferreira ; Socorro Ferreira ; Marcelo Fragomeni Simon ; Maria Aparecida Freitas ; Queila S. García ; Angelo Gilberto Manzatto ; Paulo Graça ; Frederico Guilherme ; Eduardo Hase ; Niro Higuchi ; Mariana Iguatemy ; Reinaldo Imbrozio Barbosa ; Margarita Jaramillo |
|
| |
Title  |
Taking the pulse of Earth’s tropical forests using networks of highly distributed plots |
Type |
Journal Article |
| |
Year |
2021 |
Publication |
Biological Conservation |
Abbreviated Journal |
|
|
| |
Volume |
260 |
Issue |
|
Pages |
|
|
| |
Keywords |
parcelle, forêt tropicale, biodiversité forestière, Écosystème forestier, Écologie forestière, Changement de couvert végétal, Couvert forestier |
|
| |
Abstract |
Tropical forests are the most diverse and productive ecosystems on Earth. While better understanding of these forests is critical for our collective future, until quite recently efforts to measure and monitor them have been largely disconnected. Networking is essential to discover the answers to questions that transcend borders and the horizons of funding agencies. Here we show how a global community is responding to the challenges of tropical ecosystem research with diverse teams measuring forests tree-by-tree in thousands of long-term plots. We review the major scientific discoveries of this work and show how this process is changing tropical forest science. Our core approach involves linking long-term grassroots initiatives with standardized protocols and data management to generate robust scaled-up results. By connecting tropical researchers and elevating their status, our Social Research Network model recognises the key role of the data originator in scientific discovery. Conceived in 1999 with RAINFOR (South America), our permanent plot networks have been adapted to Africa (AfriTRON) and Southeast Asia (T-FORCES) and widely emulated worldwide. Now these multiple initiatives are integrated via ForestPlots.net cyber-infrastructure, linking colleagues from 54 countries across 24 plot networks. Collectively these are transforming understanding of tropical forests and their biospheric role. Together we have discovered how, where and why forest carbon and biodiversity are responding to climate change, and how they feedback on it. This long-term pan-tropical collaboration has revealed a large long-term carbon sink and its trends, as well as making clear which drivers are most important, which forest processes are affected, where they are changing, what the lags are, and the likely future responses of tropical forests as the climate continues to change. By leveraging a remarkably old technology, plot networks are sparking a very modern revolution in tropical forest science. In the future, humanity can benefit greatly by nurturing the grassroots communities now collectively capable of generating unique, long-term understanding of Earth's most precious forests. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
Elsevier |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
EcoFoG @ webmaster @ |
Serial |
1021 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Odonne, G.; Bourdy, G.; Castillo, D.; Estevez, Y.; Lancha-Tangoa, A.; Alban-Castillo, J.; Deharo, E.; Rojas, R.; Stien, D.; Sauvain, M. |
|
| |
Title |
Ta'ta', Huayani: Perception of leishmaniasis and evaluation of medicinal plants used by the Chayahuita in Peru. Part II |
Type |
Journal Article |
| |
Year |
2009 |
Publication |
Journal of Ethnopharmacology |
Abbreviated Journal |
J. Ethnopharmacol. |
|
| |
Volume |
126 |
Issue |
1 |
Pages |
149-158 |
|
| |
Keywords |
Leishmaniasis; Medicinal plants; Traditional medicine; Chayahuita; Peru |
|
| |
Abstract |
Aim of the study v: A knowledge attitude and practice study centred on leishmaniasis and its treatment was performed among the Chayahuita, in Amazonian Peruvian ethnic group living in ail endemic area. This study documents traditional Chayahuita plant's use and disease concepts. Also, activity of some medicinal Plants Used by the Chayahuita is highlighted and discussed. Materials and methods: Ninety-three Chayahuita people were interviewed, following a semi-structured questionnaire focussed oil disease knowledge and perception, personal attitude and healing practices. Simultaneously, a collection of plants was performed in different ecotopes, in order to make ail extensive inventory of the pharmacopoeia. Results: For the Chayahuita, cutaneous (CL) and muco-cutaneous leishmaniasis (MCL) are considered as diseases of their own, with specific names, aetiologics, mode of transmission. Regarding CL, Chayahuita people consider that the humid characteristic of the Skill ulcer is a discriminative fact orienting the diagnostic for Ta'ta' (leishmaniasis). Forty-six different species were designated useful against LC and /or MCL (29 species by means of the questionnaire and 27 species when collecting in different ecotopes). Thirty-seven extracts corresponding to 31 Species used medicinally were screened in vitro against Leishmania amazonensis axenic amastigotes, assessing their viability by the reduction Of tetrazolium salt (MTT). Six species displayed a good activity (10 μg/ml < IC50 < 20 μg/ml): all undetermined hemi-epiphytic Clusiaceae. Cybianthus anthuriophyllus Pipoly (Myrsinaceae), two Piper, Piper sanguineispicum Trel., and Piper loretoanum Trel. (Piperaceae), Desmodium axillare Sw. DC. (Fabaceae), and Clibadium sylvestre (Aubl.) Baill (Asteraceae). Conclusion: Perception of leishmaniasis, attitude. treatments and diet prohibitions still largely reflects traditional Chayahuita cosmovision, even if some tentative of bio-medical re-interpretation is arising. (C) 2009 Elsevier Ireland Ltd. All rights reserved. |
|
| |
Address |
[Odonne, G.; Bourdy, G.; Estevez, Y.; Deharo, E.; Sauvain, M.] Univ Toulouse, UPS, UMR 152, Lab Pharmacochim Subst Nat & Pharmacophores Redox, F-31062 Toulouse 9, France, Email: Genevieve.bourdy@ird.fr |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
ELSEVIER IRELAND LTD |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0378-8741 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
ISI:000271790800020 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ eric.marcon @ |
Serial |
95 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Sist, P.; Picard, N.; Gourlet-Fleury, S. |
|
| |
Title |
Sustainable cutting cycle and yields in a lowland mixed dipterocarp forest of Borneo |
Type |
Journal Article |
| |
Year |
2003 |
Publication |
Annals of Forest Science |
Abbreviated Journal |
Ann. For. Sci. |
|
| |
Volume |
60 |
Issue |
8 |
Pages |
803-814 |
|
| |
Keywords |
|
|
| |
Abstract |
Based on a 6 year monitoring of the dynamics of a mixed dipterocarp forest in East Borneo (1990-1996), we built a matrix model to predict the sustainable cutting cycle in relation with the extraction and damage rates. Plots were ordered according to three main groups of damage and logging intensity. The first group G1 gathered slightly damaged plots with a remaining basal area greater than or equal to80% of the original (mean logging intensity = 6 trees ha(-1)). Plots belonging to G2, had a remaining basal area varying between 70 and 79% of the original one (mean logging intensity = 8 trees ha(-1)). Finally, G3 gathers highly damaged plots with a remaining basal area < 70% of the original one and a high logging intensity (mean = 14 trees ha(-1)). The mean sustainable cutting cycles predicted in the three groups were significantly different and equal 27, 41 and 89 years in G1, G2 and G3 respectively. However, the respective mean annual extracted volumes were similar: 1.6, 1.8 and 1.4 m(3) ha(-1) year(-1), respectively in G1, G2 and G3. The model suggests that a 40 year cycle, extracting 8 trees ha(-1) (60 m(3) ha(-1)) and an annual volume of 1.5 m(3) ha(-1) year(-1) is the best option to preserve ecological integrity of the forest, to ensure yield sustainability and, according to existing cost analysis, economic profitability. This result is also consistent with other studies which already demonstrated that logging damage reduction using RIL techniques could be only significant with a moderate felling intensity not exceeding 8 trees ha(-1). This felling intensity threshold can be easily achieved by applying simple harvesting rules. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1286-4560 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
WOS:000221039000007 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ webmaster @ |
Serial |
310 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Legeay, J.; Husson, C.; Boudier, B.; Louisanna, E.; Baraloto, C.; Schimann, H.; Marcais, B.; Buée, M. |
|
| |
Title |
Surprising low diversity of the plant pathogen Phytophthora in Amazonian forests |
Type |
Journal Article |
| |
Year |
2020 |
Publication |
Environmental Microbiology |
Abbreviated Journal |
Environ. Microbiol. |
|
| |
Volume |
22 |
Issue |
12 |
Pages |
5019-5032 |
|
| |
Keywords |
|
|
| |
Abstract |
The genus Phytophthora represents a group of plant pathogens with broad global distribution. The majority of them cause the collar and root-rot of diverse plant species. Little is known about Phytophthora communities in forest ecosystems, especially in the Neotropical forests where natural enemies could maintain the huge plant diversity via negative density dependence. We characterized the diversity of soil-borne Phytophthora communities in the North French Guiana rainforest and investigated how they are structured by host identity and environmental factors. In this little-explored habitat, 250 soil cores were sampled from 10 plots hosting 10 different plant families across three forest environments (Terra Firme, Seasonally Flooded and White Sand). Phytophthora diversity was studied using a baiting approach and metabarcoding (High-Throughput Sequencing) on environmental DNA extracted from both soil samples and baiting-leaves. These three approaches revealed very similar communities, characterized by an unexpected low diversity of Phytophthora species, with the dominance of two cryptic species close to Phytophthora heveae. As expected, the Phytophthora community composition of the French Guiana rainforest was significantly impacted by the host plant family and environment. However, these plant pathogen communities are very small and are dominated by generalist species, questioning their potential roles as drivers of plant diversity in these Amazonian forests. © 2020 Society for Applied Microbiology and John Wiley & Sons Ltd. |
|
| |
Address |
International Center for Tropical Botany, Department of Biological Sciences, Florida International University, Miami, FL 33199, United States |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
Blackwell Publishing Ltd |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
14622912 (Issn) |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
EcoFoG @ webmaster @ |
Serial |
940 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Paine, C.E.T.; Harms, K.E.; Ramos, J. |
|
| |
Title |
Supplemental irrigation increases seedling performance and diversity in a tropical forest |
Type |
Journal Article |
| |
Year |
2009 |
Publication |
Journal of Tropical Ecology |
Abbreviated Journal |
J. Trop. Ecol. |
|
| |
Volume |
25 |
Issue |
|
Pages |
171-180 |
|
| |
Keywords |
diversity; Estacion Biologica Los Amigos; habitat filtering; palms; Peru; precipitation; seasonality; seedling recruitment |
|
| |
Abstract |
Diversity is positively correlated with water availability at global, continental and regional scales. With the objective of better understanding the mechanisms that drive these relationships. we investigated the degree to which variation in water availability affects the performance (recruitment, growth a rid survival) of juvenile trees. Precipitation was supplemented throughout two dry seasons in a seasonal moist forest in south-eastern Peru. Supplementing precipitation by 160 mm mo(-1), we increased soil moisture by 17%. To generate seedling communities or known species composition, we sowed 3840 seeds of 12 species. We monitored the fates of the 554 seedlings recruited from the sown seeds. as well as 1856 older non-sown seedlings (10 cm <= height < 50 cm), and 2353 saplings (> 1 m tall). Watering significantly enhanced young seedling growth and survival, increasing stern density and diversity. Watering diminished the recruitment of species associated with upland forests, but increased the survival of both upland- and lowland-associated species. Though supplemental watering increased the growth of older seedlings. their density and diversity were unaffected. Sapling performance was insensitive to watering. We infer that variation in dry-season water availability may affect seedling community structure by differentially affecting recruitment and increasing overall survival. These results suggest that differential seedling recruitment and survival may contribute to the observed relationships between water availability, habitat associations and patterns of tree species richness. |
|
| |
Address |
[Paine, C. E. Timothy; Harms, Kyle E.] Louisiana State Univ, Dept Biol Sci, Baton Rouge, LA 70803 USA, Email: timothy.paine@ecofog.gf |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
CAMBRIDGE UNIV PRESS |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0266-4674 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
ISI:000264212400006 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ eric.marcon @ |
Serial |
118 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Do, N.A.; Dias, D.; Zhang, Z.; Huang, X.; Nguyen, T.T.; Pham, V.V.; Nait-Rabah, O. |
|
| |
Title |
Study on the behavior of squared and sub-rectangular tunnels using the Hyperstatic Reaction Method |
Type |
Journal Article |
| |
Year |
2020 |
Publication |
Transportation Geotechnics |
Abbreviated Journal |
Transp. Geotech. |
|
| |
Volume |
22 |
Issue |
100321 |
Pages |
|
|
| |
Keywords |
Finite element method; Lining; Squared shape; Sub-rectangular shape; Tunnel; efficiency measurement; finite element method; numerical model; transportation development; transportation planning; tunnel design; tunnel lining |
|
| |
Abstract |
|
|
| |
Address |
Saint-Petersburg Mining University, Russian Federation |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
Elsevier Ltd |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
22143912 (Issn) |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
EcoFoG @ webmaster @ |
Serial |
915 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Liu, S.Q.; Loup, C.; Gril, J.; Dumonceaud, O.; Thibaut, A.; Thibaut, B. |
|
| |
Title |
Studies on European beech (Fagus sylvatica L.). Part 1: Variations of wood colour parameters |
Type |
Journal Article |
| |
Year |
2005 |
Publication |
Annals of Forest Science |
Abbreviated Journal |
Ann. For. Sci. |
|
| |
Volume |
62 |
Issue |
7 |
Pages |
625-632 |
|
| |
Keywords |
Fagus sylvatica L.; CIELab colour system; solid wood; red heartwood |
|
| |
Abstract |
Colour parameters of European beech were measured using CIELab system. 103 logs from 87 trees in 9 sites were cut into boards to study the radial variations of wood colour parameters. Both site and tree effects on colour were observed. Patterns of red heartwood occurrence were defined. When excepting red heartwood there was still a highly significant effect of site and tree. Axial and radial variations were small, except very near the pith or in red heartwood, suggesting possible early selection at periphery under colour criteria. Red heartwood is darker, redder and more yellow than normal peripheral wood. |
|
| |
Address |
Univ Montpellier 2, Lab Mecan & Genie Civil, F-34095 Montpellier, France, Email: jgril@lmgc.univ-montp2.fr |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
EDP SCIENCES S A |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1286-4560 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
ISI:000233179100003 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ eric.marcon @ |
Serial |
251 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Jabiol, J.; Corbara, B.; Dejean, A.; Cereghino, R. |
|
| |
Title |
Structure of aquatic insect communities in tank-bromeliads in a East-Amazonian rainforest in French Guiana |
Type |
Journal Article |
| |
Year |
2009 |
Publication |
Forest Ecology and Management |
Abbreviated Journal |
For. Ecol. Manage. |
|
| |
Volume |
257 |
Issue |
1 |
Pages |
351-360 |
|
| |
Keywords |
Bromeliaceae; Classification; Community structure; Insects; Microcosms; Neural networks; Nouragues; Phytotelmata; Species richness |
|
| |
Abstract |
Tank-bromeliads are discrete habitats which contain distinct aquatic communities, and which commonly occur in the neotropics. Because they span a broad range of ecological gradients in terms of habitat structure and amount of resources, researchers study the associations between the biodiversity of communities and these gradients in rainforests, where the very high species richness and densities within other continuous habitats makes it difficult to quantify animal communities. We analysed the diversity of aquatic insect communities in relation to different tank-bromeliad species in a primary rainforest (French Guiana) using artificial intelligence and complex optimization techniques to classify communities and model their determinants. First, the self-organizing map (neural network) was used to classify 158 bromeliads according to the quantitative structure of the insect communities. Catopsis berteroniana and Guzmania lingulata formed separate clusters of plants on the virtual map, while Vriesea splendens, Vriesea pleiosticha and Aechmea melinonii were grouped together in the remaining clusters. Some insect taxa occurred in all bromeliads, while other taxa were specific to a given species. Second, general linear modelling allowed us to specify the influence of the bromeliad species; water volume and volume of fine particulate organic matter inside of the tank; elevation above the ground; and sampling site on taxonomic richness and insect abundance. The number of taxa and individuals per plant increased with greater water volume, but the slope of the relationships depended on the bromeliad species. The significant influence of bromeliad species suggested that at similar water volumes different plant species had different taxon richness and insect abundance. Greater amounts of fine particulate organic matter were detrimental to community diversity in the tanks, probably because they decreased available space by clogging it and/or affected oxygen concentrations. The influence of tank-bromeliad species on the aquatic insect community was primarily related to their physical (and probably chemical) features rather than to species-specific associations sensu stricto. The classification of bromeliads with respect to animal species is likely to provide referential schemes for those biodiversity patterns to be expected under certain conditions, and may help to target model communities for subsequent experimental research. (C) 2008 Elsevier B,V. All rights reserved. |
|
| |
Address |
[Jabiol, J.; Cereghino, R.] Univ Toulouse 3, Ecolab, Lab Ecol Fonctionnelle, CNRS,UMR 5245, F-31062 Toulouse 9, France, Email: cereghin@cict.fr |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
ELSEVIER SCIENCE BV |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0378-1127 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
ISI:000261856000038 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ eric.marcon @ |
Serial |
124 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Roux, O.; Vantaux, A.; Petitclerc, F.; Orivel, J.; Dejean, A.; Billen, J. |
|
| |
Title |
Structural adaptations and mechanism of reflex bleeding in the larvae of the myrmecophilous ladybird Diomus thoracicus |
Type |
Journal Article |
| |
Year |
2017 |
Publication |
Arthropod Structure and Development |
Abbreviated Journal |
Arthropod Structure and Development |
|
| |
Volume |
46 |
Issue |
4 |
Pages |
529-536 |
|
| |
Keywords |
3D reconstruction; Coccinellidae; Myrmecophagous insect; Reflex bleeding; Ultrastructure |
|
| |
Abstract |
Reflex bleeding is an effective defensive mechanism against predators. When attacked, some insects emit hemolymph, which coagulates, quickly entangling their aggressor. Bleeding occurs at weak intersegmental membranes or through dedicated organs, which can be associated or not with glandular cells. Here, we describe the behavior and morphological structures involved in reflex bleeding in the larvae of the ladybird, Diomus thoracicus, which are intranidal parasites of the ant Wasmannia auropunctata. The larvae are tolerated by the ants thanks to odor mimicry, but some rare aggressive ant behaviors were observed that trigger reflex bleeding both at a pair of thoracic tubercles and a pair of posterodorsal abdominal humps. No glandular structure was found in association with these emission points, which suggests that the material emitted was hemolymph only. A 3D reconstruction suggested that reflex bleeding seems to be controlled by muscles whose contraction increases the internal hydrostatic pressure and pushes the hemolymph into a funnel-like structure with an opening to the outside. In D. thoracicus, the morphological structures involved in reflex bleeding are among the most complex and prominent described to date. © 2017 Elsevier Ltd |
|
| |
Address |
KU Leuven, Zoological Institute, Naamsestraat 59, box 2466, Leuven, Belgium |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
Export Date: 18 December 2017 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ webmaster @ |
Serial |
778 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Peay, K.G.; Baraloto, C.; Fine, P.V.A. |
|
| |
Title |
Strong coupling of plant and fungal community structure across western Amazonian rainforests |
Type |
Journal Article |
| |
Year |
2013 |
Publication |
ISME Journal |
Abbreviated Journal |
Isme J. |
|
| |
Volume |
7 |
Issue |
9 |
Pages |
1852-1861 |
|
| |
Keywords |
coexistence; diversity; Janzen-Connell; natural enemies; negative feedback |
|
| |
Abstract |
The Amazon basin harbors a diverse ecological community that has a critical role in the maintenance of the biosphere. Although plant and animal communities have received much attention, basic information is lacking for fungal or prokaryotic communities. This is despite the fact that recent ecological studies have suggested a prominent role for interactions with soil fungi in structuring the diversity and abundance of tropical rainforest trees. In this study, we characterize soil fungal communities across three major tropical forest types in the western Amazon basin (terra firme, seasonally flooded and white sand) using 454 pyrosequencing. Using these data, we examine the relationship between fungal diversity and tree species richness, and between fungal community composition and tree species composition, soil environment and spatial proximity. We find that the fungal community in these ecosystems is diverse, with high degrees of spatial variability related to forest type. We also find strong correlations between α- and β-diversity of soil fungi and trees. Both fungal and plant community β-diversity were also correlated with differences in environmental conditions. The correlation between plant and fungal richness was stronger in fungal lineages known for biotrophic strategies (for example, pathogens, mycorrhizas) compared with a lineage known primarily for saprotrophy (yeasts), suggesting that this coupling is, at least in part, due to direct plant-fungal interactions. These data provide a much-needed look at an understudied dimension of the biota in an important ecosystem and supports the hypothesis that fungal communities are involved in the regulation of tropical tree diversity. © 2013 International Society for Microbial Ecology. |
|
| |
Address |
Department of Integrative Biology, University of California, Berkeley, CA, United States |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
17517362 (Issn) |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
Export Date: 9 September 2013; Source: Scopus; doi: 10.1038/ismej.2013.66; Language of Original Document: English; Correspondence Address: Peay, K.G.; Department of Biology, Stanford University, 371 Serra Mall, Stanford, CA 94305, United States; email: kpeay@stanford.edu; Funding Details: 1045658, NSF, National Science Foundation; Funding Details: DEB-0743800/0743103, NSF, National Science Foundation |
Approved |
no |
|
| |
Call Number |
EcoFoG @ webmaster @ |
Serial |
502 |
|
| Permanent link to this record |
