The influence of temperature on life history traits in the Iberian slug,Arion lusitanicus

2012 ◽  
Vol 162 (1) ◽  
pp. 80-88 ◽  
Author(s):  
S. Slotsbo ◽  
C. Damgaard ◽  
L.M. Hansen ◽  
M. Holmstrup
Keyword(s):  
Life History ◽  
Life History Traits ◽  
Influence Of Temperature ◽  
Arion Lusitanicus ◽  
Influence Of Temperature On

Development, Survival, and Fecundity of the Potato Aphid, Macrosiphum euphorbiae (Thomas), at Constant Temperatures

1962 ◽  
Vol 94 (6) ◽  
pp. 667-671 ◽  
Author(s):  
C. A. Barlow
Keyword(s):  
Life History ◽  
Macrosiphum Euphorbiae ◽  
Potato Aphid ◽  
Influence Of Temperature ◽  
Controlled Conditions ◽  
Influence Of Temperature On

Life-history and development of Macrosiphum euphorbiae (Thomas) have been studied by Smith (1919), Patch (1925), and MacGillivray and Anderson (1958). In most of these studies, considerable variation in temperature was experienced. The effects of different constant temperatures have never been reported. The following experiments were conducted to determine the influence of temperature on development, survival, and fecundity of M. euphorbiae under closely controlled conditions.

Effect of Temperature on the Predator, (Reuter) (Hemiptera: Anthocordiae) Feeding on Cryptolestes pusillus (Schon.) (Coleoptera: Cucujidae)

1970 ◽  
Vol 15 ◽  
pp. 41-46 ◽  
Author(s):  
MM Rahman ◽  
W Islam ◽  
KN Ahmed
Keyword(s):  
Life History ◽  
Insect Pest ◽  
Developmental Time ◽  
Effect Of Temperature ◽  
Hatching Rate ◽  
Immature Stages ◽  
Egg Hatching ◽  
Influence Of Temperature ◽  
Influence Of Temperature On ◽  
Cryptolestes Pusillus

Xylocoris flavipes (Reuter) is one of the dominant predators of many stored product insect pest including Cryptolestes pusillus. The influence of temperature on predator development, survival and some selected life history parameters was determined. Eggs laid/female (27.27±2.52) and egg hatching rate (%) (88.25±2.19) were highest at 30°C and lowest at 20°C (5.43±1.19 and 30.79±4.63%) respectively but no eggs laid at 15°C. Mortality among immature stages (%) was highest (51.71±1.48) at 35°C and lowest (24.25c±1.14) at 25°C. Developmental times decreasing with the increasing of temperature. Maximum numbers of progeny/female/day (3.55±0.76) were produced at 25°C and minimum (0.83±0.04) were at 20°C.The sex ratios (% female) of X. flavipes were 47.04, 56.68, 51.66 and 50.07 for 20, 25, 30 and 35°C respectively. Survivorship of ovipositing females was highest at 25°C but lowest at 35°C respectively. Key words: Xylocoris flavipes, Cryptolestes pusillus, life history, temperature, developmental time   doi: 10.3329/jbs.v15i0.2201 J. bio-sci. 15: 41-46, 2007

Influence of temperature and moisture duration on pathogenic life-history traits of predominant haplotypes of Fusarium circinatum on Pinus spp. in Spain

2021 ◽  
Author(s):  
MARGARITA ELVIRA-RECUENCO ◽  
Valentin Pando ◽  
Monica Berbegal ◽  
Aranzazu Manzano Muñoz ◽  
Eugenia Iturritxa ◽  
...  
Keyword(s):  
Life History ◽  
Pinus Radiata ◽  
Spore Germination ◽  
Life History Traits ◽  
Severe Disease ◽  
Common Haplotype ◽  
Fusarium Circinatum ◽  
Evolutionary Potential ◽  
Influence Of Temperature ◽  
Pinus Spp

Pathogen life-history traits influence epidemic development and pathogen adaptive ability to interact with their hosts in different environments. Reduced traits variation may compromise pathogen evolutionary potential which is particularly important for introduced pathogens. Fusarium circinatum (cause of Pine Pitch Canker) is an invasive fungal pathogen in Europe, with current distribution restricted to forest stands of Pinus radiata and P. pinaster in northern Spain and Portugal. This study aimed to quantify pathogenic traits of Spanish isolates of F. circinatum, with two of the strains representing the two dominant haplotypes in the Spanish population. Disease severity was measured on P. radiata, analyzing the influence of temperature and moisture duration on infection as well as the influence of temperature on spore germination, sporulation and mycelial growth. Results indicated that the isolate representing the most common haplotype caused more severe disease on Pinus radiata at 25 and 30ºC compared to the second most common haplotype, but less severe disease at 15ºC. Spore germination was higher for the most common haplotype, which produced more spores at 20 and 25ºC. The isolate showed hyphal melanization at 5ºC, which has been associated with survival and may be important since no resting structures have been described for F. circinatum. Our study determined that longer moisture periods during infection result in more severe disease from 7 to 24 h, regardless of the isolate virulence. This is the first study on virulence of the most abundant haplotypes of F. circinatum in Spain as affected by temperatures and moisture.

Sign in / Sign up

Export Citation Format

Share Document