Altitudinal variation of demographic life-history traits does not mimic latitudinal variation in natterjack toads (Bufo calamita)

Zoology ◽  
2012 ◽  
Vol 115 (1) ◽  
pp. 30-37 ◽  
Author(s):  
Neus Oromi ◽  
Delfi Sanuy ◽  
Ulrich Sinsch
Keyword(s):  
Life History ◽  
Life History Traits ◽  
Latitudinal Variation ◽  
Altitudinal Variation ◽  
Bufo Calamita

Demographic life history traits of reproductive natterjack toads (Bufo calamita) vary between northern and southern latitudes

2006 ◽  
Vol 27 (3) ◽  
pp. 365-375 ◽  
Author(s):  
Delfi Sanuy ◽  
Christoph Leskovar ◽  
Neus Oromi ◽  
Ulrich Sinsch
Keyword(s):  
Life History ◽  
Life History Traits ◽  
Large Female ◽  
Breeding Period ◽  
Female Size ◽  
Data Set ◽  
Bufo Calamita ◽  
Trade Offs ◽  
Age Variation ◽  
The Cost

AbstractDemographic life history traits were investigated in three Bufo calamita populations in Germany (Rhineland-Palatinate: Urmitz, 50°N; 1998-2000) and Spain (Catalonia: Balaguer, Mas de Melons, 41°N; 2004). We used skeletochronology to estimate the age as number of lines of arrested growth in breeding adults collected during the spring breeding period (all localities) and during the summer breeding period (only Urmitz). A data set including the variables sex, age and size of 185 males and of 87 females was analyzed with respect to seven life history traits (age and size at maturity of the youngest first breeders, age variation in first breeders, longevity, potential reproductive lifespan, median lifespan, age-size relationship). Spring and summer cohorts at the German locality differed with respect to longevity and potential reproductive lifespan by one year in favour of the early breeders. The potential consequences on fitness and stability of cohorts are discussed. Latitudinal variation of life history traits was mainly limited to female natterjacks in which along a south-north gradient longevity and potential reproductive lifespan increased while size decreased. These results and a review of published information on natterjack demography suggest that lifetime number of offspring seem to be optimized by locally different trade-offs: large female size at the cost of longevity in southern populations and increased longevity at the cost of size in northern ones.

Latitudinal variation of life-history traits of an exotic and a native impatiens species in Europe

2017 ◽  
Vol 81 ◽  
pp. 40-47 ◽  
Author(s):  
Kamal Prasad Acharya ◽  
Pieter De Frenne ◽  
Jörg Brunet ◽  
Olivier Chabrerie ◽  
Sara A.O. Cousins ◽  
...  
Keyword(s):  
Life History ◽  
Life History Traits ◽  
Latitudinal Variation

Latitudinal variation in life-history traits of bonnethead sharks, Sphyrna tiburo, (Carcharhiniformes : Sphyrnidae) from the eastern Gulf of Mexico

2003 ◽  
Vol 54 (7) ◽  
pp. 875 ◽  
Author(s):  
Linda A. Lombardi-Carlson ◽  
Enric Cortés ◽  
Glenn R. Parsons ◽  
Charles A. Manire
Keyword(s):  
Growth Rate ◽  
Life History ◽  
Gulf Of Mexico ◽  
Life History Traits ◽  
Latitudinal Variation ◽  
Age At Maturity ◽  
Male And Female ◽  
North West ◽  
Sphyrna Tiburo ◽  
Near Term

Life-history traits (size at age, growth rates, size and age at maturity, size of near-term embryos and litter sizes) of bonnetheads, Sphyrna tiburo, were analysed to test for latitudinal differences by comparing data collected from three areas along Florida's Gulf of Mexico coastline between March 1998 and September 2000. A total of 539 sharks were collected during the study: 207 in north-west Florida (latitude ~30�N), 176 in Tampa Bay (~28�N) and 156 in Florida Bay (~25�N). Male and female bonnetheads in north-west Florida had the largest predicted asymptotic sizes (1007�mm and 1398�mm TL, respectively) and attained the largest estimated median size at maturity (830�mm and 944�mm, respectively) and the oldest estimated median age at maturity (3.0+�years and 4.0+�years, respectively). The largest near-term embryos (297�mm TL) were also collected at the highest latitude, but no latitudinal difference in litter size was found. These differences in life-history traits provide supporting evidence that a pattern of latitudinal variation exists. Male and female bonnetheads in north-west Florida also had the fastest growth rate compared with the other locations, supporting the hypothesis that growth rate is inversely related to the length of the growing season (i.e. a pattern of countergradient variation exists).

LATITUDINAL VARIATION IN LIFE-HISTORY TRAITS IN EURASIAN PERCH

Ecology ◽  
2005 ◽  
Vol 86 (12) ◽  
pp. 3377-3386 ◽  
Author(s):  
Erik Heibo ◽  
Carin Magnhagen ◽  
Leif Asbjørn Vøllestad
Keyword(s):  
Life History ◽  
Life History Traits ◽  
Latitudinal Variation ◽  
Eurasian Perch

scholarly journals Latitudinal variation in sexual dimorphism in life-history traits of a freshwater fish

2016 ◽  
Vol 7 (2) ◽  
pp. 665-673 ◽  
Author(s):  
Satu Estlander ◽  
Kimmo K. Kahilainen ◽  
Jukka Horppila ◽  
Mikko Olin ◽  
Martti Rask ◽  
...  
Keyword(s):  
Life History ◽  
Sexual Dimorphism ◽  
Freshwater Fish ◽  
Life History Traits ◽  
Latitudinal Variation
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