Results 141 to 150 of about 1,255 (181)

Geographic Variation and Community Structure in an Ant-Plant Mutualism: Azteca and Cecropia in Costa Rica

open access: closedBiotropica, 1989
The association between Azteca ants and Cecropia trees is the most conspicuous ant-plant mutualism in the neotropics, yet little is known about the identities or community ecology of the species involved. A survey of ant communities found in Costa Rican Cecropia trees revealed a community of Azteca species obligately associated with Cecropia, and a ...
John T. Longino
openaire   +2 more sources

HOST‐PLANT UTILIZATION BY HYALOPHORA CECROPIA AS AFFECTED BY PRIOR FEEDING EXPERIENCE

open access: closedEntomologia Experimentalis et Applicata, 1982
Hyalophora cecropia larvae were switched at the beginning of the penultimate stadium from one host‐plant species to another to test whether prior feeding on one host‐species alters the ability of larvae to utilize a new host‐species. Larvae accepted the new hosts, survived and grew normally.
ERIC M. GRABSTEIN, J. MARK SCRIBER
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Host Plants and the Locations of the Baggy and Compact Cocoons of Hyalophora cecropia (Lepidoptera: Saturniidae)

open access: closedAnnals of the Entomological Society of America, 1967
In the autumn and winter of 1965–66, 482 cocoons of Hyalophora cecropia (L.) were collected in urban environments in and near Champaign and Urbana, Illinois. In this area at least 26 plants of 12 families—all woody, dicotyledonous angiosperms—serve as hosts. Acer saccharinum L., Cornus stolonifera Michx., and C. alba L. are the most frequently utilized.
G. P. Waldbauer, J. G. Sternburg
openaire   +2 more sources

Mite fauna associated with Cecropia pachystachya Trec. (Urticaceae)—the importance of the plant as reservoir and dissemination means for predatory mites

open access: closedSystematic and Applied Acarology, 2017
Cecropia pachystachya Trec. (Urticaceae) is a common pioneer plant from South America, which is found on both degraded and preserved environments. Pioneer plants are able to disperse into agricultural environments and to introduce species of mites different from those present amongst the cultivated plants. This study evaluated the mite fauna present on
Lofego, Antonio Carlos   +3 more
openaire   +3 more sources

Induced responses to herbivory in the Neotropical ant-plant association between Azteca ants and Cecropia trees: response of ants to potential inducing cues

open access: closedBehavioral Ecology and Sociobiology, 1999
Plant defense against herbivores often involves constitutive and inducible mechanisms of resistance. Obligate ant-plants, which provide food and housing for ants, are thought to primarily rely on ants for defense against herbivores. This form of plant defense has largely been viewed as static.
Anurag A. Agrawal   +1 more
openaire   +2 more sources

Changes in biomass allocation and phenolic compounds accumulation due to the effect of light and nitrate supply in Cecropia peltata plants

open access: closedActa Physiologiae Plantarum, 2011
Cecropia peltata is popularly known as “guarumbo” in Mexico and is used in traditional medicine for treatment of diabetes mellitus. C. peltata plants were cultivated in a hydroponic system under controlled conditions. Gradients of light (20, 30 and 100 μmol m−2 s−1) and nitrate concentrations (13, 2 and 0.2 mM) were applied to estimate their effect on ...
Alejandro Mora Izquierdo   +3 more
openaire   +2 more sources

Hypoglycemic effect of the plant Cecropia peltata L. (Yagrumo) in vivo and in vitro

open access: gold, 2017
Nubilde Martínez   +6 more
openaire   +2 more sources

Bigger ant colonies reduce herbivory and herbivore residence time on leaves of an ant-plant: Azteca muelleri vs. Coelomera ruficornis on Cecropia pachystachya

open access: closedOecologia, 1992
The effect of defence force size in colonies of the ant Azteca muelleri on the time spent to localize, attack and expel the specialized herbivorous beetle Coelomera ruficornis from Cecropia pachystachya bushes was studied in an area of Atlantic forest in northeastern Brazil. Our results show that Azteca muelleri expel Coelomera ruficornis from Cecropia
Carlos Frederico Duarte, Rocha   +1 more
openaire   +3 more sources

Can the Chlorophyll-a Fluorescence be Useful in Identifying Acclimated Young Plants from Two Populations of Cecropia Pachystachya Trec. (Urticaceae), Under Elevated CO2 Concentrations?

open access: closedJournal of Fluorescence, 2014
The physiological behavior of PSII measured by chlorophyll a fluorescence explains stress responses; wonders if it can differentiate plants from different populations. For this purpose, acclimated young plants of two C. pachystachya populations were cultivated from seeds. Chlorophyll-a fluorescence was measured after fertilization and [CO(2)](e).
E F, Santiago   +5 more
openaire   +3 more sources

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