International Journal of Horticulture 2015, Vol.5, No.4, 1
-
11
9
digestibility (AD%), efficiency of conversion of
ingested food (ECI%), efficiency of conversion of
digested food (ECD%), host utilization efficiency
(HUE%), hatchability (%), effective rate of rearing
(ERR%), adult emergence (AE%), accumulated
survivability (AS%), feeding index (FI) and growth
index (GI), were estimated as in my recently
published paper (Roy, 2014) on
Diacrisia casignetum
Kollar.
3.6 Life table parameters
The construction of life table includes several
parameters which were calculated with the formulae
of Carey (1993), Krebs (1994) and Price (1998).
These parameters include probability of survival from
birth to age x (lx), proportion dying each age (dx),
mortality (qx), survival rate (sx) per day per age class
from egg to adult stages. Using these parameters, the
following statistics like, average population alive in
each stage (Lx), life expectancy (ex), exponential
mortality or killing power (kx), total generation
mortality (K), generation survival (GS), gross
reproductive rate (GRR), net reproductive rate (R
0
),
mean generation time (T
c
), doubling time (DT),
intrinsic rate of population increase (
r
m
) and finite rate
of population increase (λ) were also computed, using
Carey’s formulae (Carey, 1993).
3.7 Data analysis
All the data on food utilization indices and life table
parameters of
P. quatuordecimpunctata
on the two host
leaves along with their phytochemical regime were
analyzed using one way ANOVA (Zar, 1999). All the
statistical analysis was performed using the statistical
program SPSS v. 13.0 (SPSS, 2004).
Author’s contributions
NR designed the whole study including sample collection,
chemical analysis, index calculation, data analysis and draft the
manuscript with the help of institutional support.
Acknowledgments
The financial assistance provided by the University Grants
Commission [F. No. PSW-025/13-14], New Delhi, Government
of India is gratefully acknowledged.
References
Ali A., and Rizvi P.Q., 2008, Effect of varying temperature on the survival
and fecundity of
Coccinella septempunctata
(Coleoptera: Coccinellidae)
fed on
Lipaphis erysimi
, J. Entomol., 5:133-137
Ali A., and Rizvi P.Q., 2010, Age and stage specific life table of
Coocinella
septemounctata
(Coleoptera:Coccinellidae) at varying temperature,
World J. Agric. Sci., 6:268-273
Applebaum S.W., 1985, Biochemistry of digestion, In: Kerkot G.A., and
Gillbert L.I. (eds.), Comprehensiv insect physiology, biochemistry and
pharmacology, Pergamon Press, Oxford, NewYork, England
Awmack C.S., and Leather S.R., 2002, Host plant quality and fecundity in
herbivorous insects, Annu. Rev. Entomol., 47:817-844
Baksha M.W., 1997, Biology, ecology and control of amra defoliator,
Podontia quatuordecimpunctata
Linn. (Chrysomelidae:Coleoptera) in
Bangladesh, Bangladesh J. Forest Sci., 26:43-46
Banerjee T.C., and Haque N., 1984, Dry-matter budgets for
Diacrisia
casignetum
larvae fed on sunflower leaves, J. Insect Physiol.,
30:861-866
Becerra J.X., 2004, Molecular systematics of
Blepharida
beetles
(Chrysomelidae: Alticinae) and relatives, Mol. Phylogent. Evol.,
30:107-117
Beeson C.F.C., 1941, The ecology and control of the forest insects of India
and the neighboring countries, Forest Research Institute, Dehra Dun
Bray H.G., and Thorpe W.V. 1954, Analysis of phenolic compounds of
interest in metabolism, Methods Biochem. Anal., 1:27-52
Carey J.R. 1993, Applied demography for biologists with special emphasis
on insects, Oxford University Press, New York, USA
Carey J.R., 2001, Insect biodemography, Annu. Rev. Entomol., 46:79-110
Corbett G.H., and Yusope M., 1921, Preliminary notes on the Kadongong
beetle,
Podontia 14-punctata
Linn., Agr. Bul. Fed. Malay. States.,
9:192-200
Dadd R.H., 1985, Nutrition: organisms, In: Kerkot G.A., and Gillbert L.I.
(eds.), Comprehensive insect physiology, biochemistry and
pharmacology, Pergamon Press, Oxford, New York
Das J., Mannan A., Rahman M.M., Dinar M.A.M., Uddin M.E., Khan I.N.,
Habib M.R., Hasan N. 2011, Chloroform and ethanol extract of
Spondias pinnata
and its different pharmacological activity like-
antioxidant, cytotoxic, antibacterial potential and phytochemical
screening through in-vitro method,
Int. J. Res. Pharm. Biomed. Sci.,
2:1805-1812
Day R.A., and Underwood A.L., 1986, Quantitative analysis, Prentice-Hall
publication, New Delhi, India
Deka S., and Kalita J., 1999, Biology of
Podontia quatuordecimpunctata
L.
- a defoliator of
Spondias pinnata
(Koem) Kurz in Assam, J. Assam.
Sci. Society, 40:19-24
Deka S., and Kalita J., 2002a, Assessment of foliage loss caused by
Podontia quatuordecimpunctata
(Coleoptera:Chrysomelidae) - a
defoliator of
Spondias pinnata
in Assam, J. Ecobiol., 14:3-8
Deka S., and Kalita J., 2002c, Field biology of ambara defoliator,
Podontia
quatuordecimpunctata
L. (Coleoptera:Chrysomelidae) in Assam, J.
Appl. Zool. Res., 13:176-178
Deka S., and Kalita J., 2002d, Seasonal incidence of
Podontia
quatuordecimpunctata
(Coleoptera) on hog plum (
Spondias pinnata
,
Anacardiaceae) in Assam, J. Ecotoxicology Env. Monitoring,
12:201-204
Deka S., and Kalita J., 200b, Distribution pattern of
Podontia
quatuordecimpunctata
(Insecta) under natural conditions, J. Ecobiol.,
14:189-194
Dicke M., 2000, Chemical ecology of host-plant selection by herbivorous
arthropods: a multitrophic perspective, Biochem. Syst. Ecol.,
28:601-617
Dubios M., Gilles K., Hamilton J.K., Rebers P.A., and Smith F., 1951, A
colorimetric method for the determination of sugars, Nature, 168:167
Ellers-Kirk C., and Fleischer S.J., 2006, Development and life table of
Acalymma vittatum
(Coloptera:Chrysomelidae), a vector of
Erwinia
tracheiphila
in cucurbits, Env. Entomol., 35:875-880
Folch J., Lees M., and Solane-Stanley G.H., 1957, A simple method for the
