Time constraint effects on phenology and life history synchrony in a damselfly along a latitudinal gradient

Oikos ◽  
2015 ◽  
Vol 125 (3) ◽  
pp. 414-423 ◽  
Author(s):  
Szymon Śniegula ◽  
Maria J. Gołąb ◽  
Frank Johansson
Keyword(s):  
Life History ◽  
Latitudinal Gradient ◽  
Time Constraint ◽  
Constraint Effects

Range-wide variation in life-history phenotypes: spatiotemporal plasticity across the latitudinal gradient of the evergreen oakQuercus ilex

2016 ◽  
Vol 43 (12) ◽  
pp. 2366-2379 ◽  
Author(s):  
Ana García-Nogales ◽  
Juan C. Linares ◽  
Raquel G. Laureano ◽  
Jose I. Seco ◽  
Jose Merino
Keyword(s):  
Life History ◽  
Latitudinal Gradient

Thermal regime drives a latitudinal gradient in morphology and life history in a livebearing fish

2018 ◽  
Vol 125 (1) ◽  
pp. 126-141 ◽  
Author(s):  
Rüdiger Riesch ◽  
Ryan A Martin ◽  
Sarah E Diamond ◽  
Jonas Jourdan ◽  
Martin Plath ◽  
...  
Keyword(s):  
Life History ◽  
Thermal Regime ◽  
Latitudinal Gradient ◽  
Livebearing Fish

scholarly journals A green wave of saltmarsh productivity predicts the timing of the annual cycle in a long-distance migratory shorebird

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Joseph A. M. Smith ◽  
Kevin Regan ◽  
Nathan W. Cooper ◽  
Luanne Johnson ◽  
Elizabeth Olson ◽  
...  
Keyword(s):  
Life History ◽  
Salt Marsh ◽  
Annual Cycle ◽  
Latitudinal Gradient ◽  
Atlantic Coast ◽  
Breeding Habitat ◽  
Spatial And Temporal Variation ◽  
Spring Temperature ◽  
Long Distance ◽  
Breeding Sites

AbstractUnderstanding how migratory animals respond to spatial and temporal variation in habitat phenology is critical for identifying selection pressures and tradeoffs at different life history stages. We examined the influence of breeding habitat phenology on life history timing of the eastern willet (Tringa semipalmata semipalmata) across a latitudinal gradient of breeding sites on the east coast of North America. To describe migration and life history timing, we deployed light-level geolocators on willets at breeding sites in New Jersey, Massachusetts and Maine, USA and evaluated additional data on life history timing and migratory connectivity from previous studies, eBird and band recoveries. Willets from Nova Scotia to Georgia winter exclusively on the Atlantic coast of northern South America and share common stopover sites. The timing of wintering site departure, breeding site arrival, nesting and southbound departure was later for birds breeding at higher latitudes while the duration of all life phases was similar across sites. Regardless of latitude, nesting corresponded with a consistent stage of seasonal salt marsh biomass accumulation and with peak spring temperature acceleration (GDD jerk). Temperature acceleration and salt marsh biomass were closely correlated with each other across the 11° latitudinal gradient we examined and with the timing of nest initiation across the northern 6° of this gradient. For this northern 6° of latitude, these results suggest that the timing of migration and breeding events in the annual cycle of eastern willets is constrained by a phenological “green wave” of spring salt marsh productivity at breeding sites.

Latitudinal phenotypic variation in the southernmost trichomycterid, the catfish Hatcheria macraei: an amalgam of population divergence and environmental factors

2018 ◽  
Vol 124 (4) ◽  
pp. 718-731 ◽  
Author(s):  
Juan Mauro Chiarello-Sosa ◽  
Miguel Ángel Battini ◽  
Juan Pablo Barriga
Keyword(s):  
Life History ◽  
Environmental Factors ◽  
Body Shape ◽  
Latitudinal Gradient ◽  
Population Divergence ◽  
Meristic Characters ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Life History Patterns ◽  
Fin Length

Abstract Body shape and meristic characters are highly variable phenotypic aspects in fish, and in most cases are related to phylogeography, environmental factors and life history patterns. Our main goals here were to evaluate morphological and meristic characters in five populations of the catfish Hatcheria macraei living at different latitudes across Patagonia, and to assess the importance of environmental and phylogenetic variables in determining body shape. The present study reveals great morphological variation among populations distributed along the latitudinal gradient. We found that the highest levels of variation in external morphological features were in peduncle height, dorsal fin length and anus position. This variation in body shape, quantified by geometric morphometrics, was mostly explained by the phylogenetic relationship between populations, stream gradient and spawning temperature. In contrast, the meristic characters, such as vertebral and fin ray numbers, except for dorsal fin ray number, were negatively related to latitude and positively to spawning temperature.

scholarly journals Seasonal time constraints reduce genetic variation in life-history traits along a latitudinal gradient

2015 ◽  
Vol 85 (1) ◽  
pp. 187-198 ◽  
Author(s):  
Szymon Sniegula ◽  
Maria J. Golab ◽  
Szymon M. Drobniak ◽  
Frank Johansson
Keyword(s):  
Genetic Variation ◽  
Life History ◽  
Life History Traits ◽  
Latitudinal Gradient ◽  
Time Constraints

scholarly journals Post‐glacial colonization routes coincide with a life‐history breakpoint along a latitudinal gradient

2019 ◽  
Vol 32 (4) ◽  
pp. 356-368 ◽  
Author(s):  
Emilien Luquet ◽  
Patrik Rödin Mörch ◽  
Maria Cortázar‐Chinarro ◽  
Yvonne Meyer‐Lucht ◽  
Jacob Höglund ◽  
...  
Keyword(s):  
Life History ◽  
Latitudinal Gradient ◽  
Colonization Routes

Overwintering strategies and life-history traits of different populations of Aphidius platensis along a latitudinal gradient in Chile

2021 ◽  
Author(s):  
Armando Alfaro-Tapia ◽  
Jeniffer K. Alvarez-Baca ◽  
Kévin Tougeron ◽  
Blas Lavandero ◽  
Cécile Le Lann ◽  
...  
Keyword(s):  
Life History ◽  
Life History Traits ◽  
Latitudinal Gradient ◽  
Different Populations
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