Neurospora from Natural Populations: Population Genomics Insights into the Life History of a Model Microbial Eukaryote

Rock-dwelling land snails, feeding on algae and lichens that grow on stone surfaces, may influence the structure and function of these ecosystems. Yet, little is known about the life history of rock-dwelling snails. We performed a 30-month mark–release–resight study in four populations of Chondrina clienta (Westerlund, 1883) inhabiting vertical walls of abandoned limestone quarries on the Baltic island of Öland, Sweden, to assess growth rate and survival of juvenile snails and determine age at maturity. We marked 800 individuals ranging in shell height from 1.4 to 4.9 mm, released them in their original habitat, and remeasured their shell height at intervals of 6 months. Shell growth of juvenile C. clienta was affected by the site (quarry wall) and the size of the individual, being highest in medium-sized snails. Shell growth occurred during both summer and winter. Annual apparent survival rates of C. clienta were size-dependent and ranged from 58.6% to 96.3%. Sexual maturity was reached at an age of 5 years, which is later than in most large snail species. Our study extends current knowledge on life history of land snails to a rarely studied group dwelling on rock surfaces.

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Life history mediates the trade-offs among different components of demographic resilience

10.1101/2021.06.30.450480 ◽

2021 ◽

Author(s):

Pol Capdevila ◽

Iain Stott ◽

James Cant ◽

Maria Beger ◽

Gwilym Rowlands ◽

...

Keyword(s):

Life History ◽

Large Scale ◽

Life History Traits ◽

Natural Populations ◽

Biodiversity Loss ◽

Reproductive Capacity ◽

Trade Offs ◽

Recovery Times ◽

History Of ◽

Highly Correlated

Accelerating rates of biodiversity loss underscore the need to understand how species achieve resilience, their ability to resist and recover from a/biotic disturbances. Yet, the factors determining the resilience of species remain poorly understood, due to disagreements on its definition and the lack of large-scale analyses. Here, we investigate how the life history of 785 natural populations of animals and plants predict their intrinsic ability to be resilient. We show that demographic resilience can be achieved through different combinations of compensation, resistance, and recovery after a disturbance. We demonstrate that these resilience components are highly correlated with life history traits related to the species' pace of life and reproductive strategy. Species with longer generation times require longer recovery times post-disturbance, while those with greater reproductive capacity have greater resistance and compensation. Our findings highlight the key role of life history traits to understand species resilience, improving our ability to predict how natural populations cope with disturbance regimes.

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Life history of wild soybean on natural populations

Journal of Weed Science and Technology ◽

10.3719/weed.45.supplement_182 ◽

2000 ◽

Vol 45 (Supplement) ◽

pp. 182-183

Author(s):

Y. Nakayama ◽

H. Yamaguchi

Keyword(s):

Life History ◽

Wild Soybean ◽

Natural Populations ◽

History Of

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Effects of the food supply on the life history of Simuliidae (Diptera)

Canadian Journal of Zoology ◽

10.1139/z79-033 ◽

1979 ◽

Vol 57 (2) ◽

pp. 301-306 ◽

Cited By ~ 35

Author(s):

M. H. Colbo ◽

G. N. Porter

Keyword(s):

Life History ◽

Food Supply ◽

Laboratory Experiments ◽

Development Time ◽

Natural Populations ◽

Simulium Vittatum ◽

History Of ◽

Ecological Basis ◽

Extended Survival

Data are presented from laboratory experiments to show the effect on the life history of Simulium vittatum and the S. verecundum complex of reducing available food supply. These experiments showed that development time was extended, survival declined, size decreased, and fecundity markedly reduced when food supply was reduced beyond a certain level. Differences between the two species may have an ecological basis. It is argued that such effects occur in natural populations of simuliids and that they have implications for studies of vectors and their control.

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