EurekaMag.com logo
+ Site Statistics
References:
48,253,228
Abstracts:
22,798,842
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Treefall gaps versus forest understory as environments for a defoliating moth on a tropical forest shrub


, : Treefall gaps versus forest understory as environments for a defoliating moth on a tropical forest shrub. Oecologia (Berlin) 72(1): 65-68

The moth Zunacetha annulata (Dioptidae) is a specialist on the understory shrub Hybanthus prunifolius (Violaceae) in the forest of Barro Colorado Island (BCI), Panama. The larvae, which are capable of defoliating entire shrubs, concentrate their attack upon the small minority of H. prunifolius individuals that grow in treefall gaps. Field experiments demonstrated that larval growth rates were 37% higher, and weights at pupation 25% higher, on shrubs in gaps than on shrubs in the understory. In a common environment in the laboratory, growth rates of larvae were 23% higher on foliage taken from shrubs in gaps than on foliage from shrubs in the understory. However, larvae grown in a temperature regime simulating that of gaps did not grow faster than larvae in an understory regime, when the two groups were reared in growth chambers on foliage taken from the same shrubs. In the field, predation appeared higher in gaps: experimental groups of larvae survived at rates of 65% per day in gaps and 78% per day in the understory. Quality of foliage, and not direct effects of the environment, appears to be responsible for the observed pattern of defoliation by this moth.

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 006839023

DOI: 10.1007/bf00385046

PDF Full Text: Treefall gaps versus forest understory as environments for a defoliating moth on a tropical forest shrub


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Novacek, G., 2006: Plummer-Vinson syndrome. Plummer-Vinson or Paterson-Kelly syndrome presents as a classical triad of dysphagia, iron-deficiency anemia and esophageal webs. Exact data about epidemiology of the syndrome are not available; the syndrome is extremely rare. Most of the patients...

Hofmann, R.W.; Campbell, B.D.; Bloor, S.J.; Swinny, E.E.; Markham, K.R.; Ryan, K.G.; Fountain, D.W., 2003: Responses to UV-B radiation in Trifolium repens L. - physiological links to plant productivity and water availability. This study used comparisons across nine populations of Trifolium repens (white clover) in conjunction with drought to examine physiological responses to ultraviolet-B radiation (UV-B). Plants were exposed for 12 weeks to supplementation with 13.3...

Søgaard, R.; Zeuthen, T., 2007: Test of blockers of AQP1 water permeability by a high-resolution method: no effects of tetraethylammonium ions or acetazolamide. The effects of putative water channel blockers were tested on AQP1-expressing Xenopus laevis oocytes by a fast optical method with a time resolution of 1 s and a volume resolution of 20 pl. The oocytes were exposed to external hyposmolarity and t...

Massy, J.; Gruber, D.; Muraine, M.; Brasseur, G., 1999: Non-penetrating deep sclerectomy in the surgical treatment of chronic open-angle glaucoma. Mid-term results. Non-penetrating deep sclerectomy has been performed in France since the early nineties and appears to be an interesting alternative to Cairn's trabeculectomy. The technical characteristics, the ability to use antimitotic procedures and postop...

Boysen, M.E.; de Besche, A.; Djupesland, G.; Thorud, E., 1979: Internal cysts and fistulae of branchial origin. Cysts and fistulae related to the second and third pharyngeal pouches are described. These anomalies probably occur more often than presumed. Unilateral recurring infections of the tonsillar region, including parapharyngeal abscess, may be caused...

Kirwan, M.L.; Mudd, S.M., 2012: Response of salt-marsh carbon accumulation to climate change. About half of annual marine carbon burial takes place in shallow water ecosystems where geomorphic and ecological stability is driven by interactions between the flow of water, vegetation growth and sediment transport. Although the sensitivity of...

Kolb R.; Reiner G.; Jakesz R.; Moser K.; Schemper M., 1983: Results of a randomized prospective trial in operable breast cancer. Langenbecks Archiv fuer Chirurgie 361: 776

Hirahara F., 1987: Effects of d alpha tocopherol d delta tocopherol and d alpha tocotrienol on atherogenic diet fed rats after high dose administration. Male Sprague Dawley rats at 4 weeks of age were fed high-cholesterol atherogenic diets supplemented with 0.5% .alpha.-tocopherol, .delta.-tocopherol or .alpha.-tocotrienol for 2 weeks in order to determine their effects on serum lipid levels in th...

Vignetti, M.; Meloni, G.; Martelli, M.; Zinzani, P.L.; Mazza, P.; Bocchia, M.; Gherlinzoni, F.; Pileri, S.; Papa, G.; Antimi, M.; Martelli, M.F.; Liberati, A.M.; Falini, B.; Calabresi, F.; Ruggeri, E.M.; Dammaco, F.; Lauta, V.M.; Lucarelli, G.; Moretti, L., 1994: ABMT versus DHAP for aggressive non-Hodgkins lymphoma patients in clinical partial response after third generation regimens An Italian multicentric study. Bone Marrow Transplantation 0(PROGRAM ABSTR ): 144

Lestz Robert S., 2000: Perforating for stimulationan engineered solution. On an eight-well program in the Lobo trend of the lower Wilcox group, Chevron has saved more than $1 million on fracture-stimulation expense by perforating a 5-ft interval (procedure referred to as "point source perforating") at the lowe...