S. Bushra1,*, M. Tariq1, M. Naeem1, M. Ashfaq1, I. Bodlah1 and M. Ali2
...g emergence, parasitism, sex ratio, tibia length, adult weight and adult longevity of parasitoid D. rapae after the application of treatments was studied and analyzed statistically. The study revealed that plant extract can be toxic to paprasitoid D. rapae. This study will help us to use those insecticide formulations, which not only kill the aphid pests but are also eco-friendly to natural enemies and our environment.
...
Sumra Ashraf1, Zain ul Abdin1,*, Saqi Kosar Abbas2,Rao Sohail Ahmad Khan3, Muhammad Tahir1, Sehrish Rasool1, Maryam Anwar1 and Fiaz Hussain1
... diets on the fecundity, sex ratio and longevity of B. hebetor. Three different diets [Honey syrup, sugar syrup, date syrup and a control (water)] were used with different solution percentage (25, 50, 75 and 90%). It was observed that honey fed wasp pair produces significantly more number of eggs, adults and also lived significantly longer than other treatments. Highest fecundity and longevity of parasitoid was recorded in case of parasitoids feeding on...
Md. Yeamin Hossain1,*, Md. Alomgir Hossen1, Md. Nasir Uddin Pramanik1, Fairuz Nawer1, Md. Mosaddequr Rahman2, Suraiya Sharmin1, Dalia Khatun1, A. H. Bahkali3, Abdallah M. Elgorban3 and Khairun Yahya4
...o, including ─ sex ratio, length-frequency distributions (LFDs), length-weight relationships (LWRs), length-length relationships (LLRs), condition factors (allometric, KA; Fulton’s, KF; relative, KR), relative weight (WR), form factor (a3.0), size at first sexual maturity (Lm) and natural mortality (MW) in the Ganges River, nor...
Mousa Keshavarz1*, Ehsan Kamrani1, Narges Amrollahi Biuki1 and Hossein Zamani2
... spring. The operational sex ratio (OSR) of E. mathaei was female-biased and was not significantly different during the study. The monthly adult sex ratio (ASR) was significantly different. It means that the sex ratio has no effects on OSR. Moreover, the gonadosomatic indices GSI 1, GSI 2, and GSI 3 were 8.2±0.6, 4.1±0.3 and 9.4±0.9, respectively. GSIs did not s...
Mingqin Shao1*, Bin Chen1, Peng Cui2, Binbin Zeng1 and Jianhong Jiang1
...s. A large difference in sex ratios was observed among different months. The actual ratio of [(adult + sub-adult male): (adult + sub-adult female)] was 1:1.44 (n = 22) in February. Future studies are necessary, and the main goal should be focused on sex ratio, mortality and sex ratio at birth.
...
Sehrish Rasool1, Zain ul Abdin1,*, Saqi Kosar Abbas2, Sumra Ashraf1, Maryam Anwer1, Atif Manzoor1, Muhammad Tahir1 and Hoor Shaina1
...). The number of adults, sex ratio and size of emerging adults were recorded. Smaller and larger host species were used to determine the survival potential of the wasp. It was observed that maximum number of adult wasps emerged from the hosts G. mellonlla (95 ±2.30 (se) and S. litura (81 ±1.15 (se)) by placing the lowest number of wasp eggs (4 eggs per larvae) on the hosts larvae and minimum number of adult wasps was recorded from t...
Mousa Keshavarz1*, Maryam Soyuf Jahromi2
...y effect the operational sex ratio (OSR). The number of males and females were 71 and 126, respectively. Twenty samples by the total wet weights less than 12 g were non-sexual. The wet weight of the gonads was ~8.25% of the mean total wet body weights. The most distribution of gonad wet weights and total wet weights were generally less than 10 g and 80 g, respectively. The females were heavier than the males (~1.77x). The heavier females had more gonads (direc...
Gülnur Metin* and İlker Aydin
...LM50) and sex ratio) of the jinga shrimp, Metapenaeus affinis (H. Milne Edwards, 1837), in Izmir Bay (Aegean Sea, Turkey) were investigated. A total of 2894 M. affinis were obtained from commercial fishermen between November 2008 and January 2011. The total length and weight of the females or males were measured as 7.3–17.5 cm and 2.6-38.9 g or 7.8–15.4 cm and 2.6-41.6 g, respectively. The samples were composed of 56.6%...
Fang Wang, Yong-Fang Jia, Po Wang, Qi-Yan Du and Zhong-Jie Chang*

 

...ions of LET. At 130 dph, sex ratio was recorded. The results showed that continuous exposure to LET induced the changes of sex ratio. High concentration of LET can promote male-biased sex ratio. In order to reveal the molecular mechanism by which LET caused sex reversal, juvenile carp (120dph) were exposed to 0, 5, 25, 125, and 625μg/L LET for 15 days, and the expression profiles of sev...
Hayat Badshah1, Farman Ullah1, Paul-André Calatayud2, Hidayat Ullah3 and Bashir Ahmad1
...ts did not influence the sex ratio of the 3rd trophic level. The current study indicated that hibiscus is, among those tested in this study, the best plant species to mass rear the mealybug and its associated parasitoid in a context of biological control program. However, additional research is needed to assess the properties of hibiscus to attract the parasitoid.
...

 Waseem Ahmad Gillani* and Mike Copland**

INFLUENCE OF THREE CONSTANT AND TWO RHYTHMICALLY FLUCTUATING TEMPERATURE REGIMES ON THE LIFE-TABLE PARAMETERS OF BROWN LACEWING SYMPHEROBIUS FALLAX

 Zhi Yijin and Shao Mingqin*

... the population size and sex ratio of the scaly-sided merganser Mergus squamatus (the merganser) in four rivers of the Poyang Lake water system, Jiangxi province, China. Spatial and temporal variations in population size were ascertained for this endangered species. The Xiuhe, Fuhe and Raohe river systems exhibited large steady populations, with the maximum size ranging from 25 to 68 individuals for each river. Restoration and maintenance of suitable ha...
Iram Maqsood1,2,3 and Ke Rong *1,2
...on livestock, controlled sex ratio, promoting growth characteristics, population genetics, and organ preservation. In addition to this, the habitat restoration program committed to improving the quality and habitat area. The reintroduction project illustrated that A. Sinensis bred in captivity well adapted to wild habitat and successfully reproducing their offspring’s. Only healthy crocodiles were selected for release into the wild to renew natura...

Pakistan Journal of Zoology

April

Vol. 51, Iss. 2, Pages 399-799

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