Thermal niche for germination and early seedling establishment at the leading edge of two pine species, under a changing climate

Ordoñez‐Salanueva, Cesar A.; Orozco‐Segovia, Alma; Mattana, Efisio; Castillo-Lorenzo, Elena; Dávila-Aranda, Patricia; Pritchard, Hugh W.; Ulian, Tiziana; Flores-Ortíz, César Mateo

doi:10.1016/j.envexpbot.2020.104288

Cited by 9 publications

(4 citation statements)

References 61 publications

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“…This agrees with previous studies where they report that water availability is a determining factor in germination, as has been recorded for species such as Pinus nigra J.F.Arnold (Topacoglu et al 2016), or what reported for Pinus sylvestris where they observed that the years with the highest germination corresponded to the years with the most precipitation (Castro et al 2005). Although in this study, ambient temperature did not influence the germination of conifers, previous studies report that for species such as Pinus douglasianaMartinez and Pinus maximinoi H. E. Moore, temperature plays a significant role in germination, showing ideal temperatures from 9.4degC to 10degC (Ordonez-Salanueva et al 2021).…”

Section: Discussioncontrasting

confidence: 41%

The importance of environmental and disturbance conditions in different growth stages of plants of temperate forest in the Sierra Norte of Oaxaca, Mexico

Gutiérrez,

Flores-Galicia,

Trejo

2024

Preprint

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Environmental conditions and disturbances are important factors that could influence ecological processes. For this reason, it is essential to know the relationship between them. The objective of this study was to analyze the effect of environmental conditions and disturbance on three growth stages (adults, germinated individuals, and seeds) of conifers, oaks, and other broadleaf species that compose the temperate forests of the highlands of the Sierra Norte of Oaxaca, Mexico. For this purpose, we established 0.1 ha plots along an altitudinal gradient ranging from 1950 m to 3250 m asl where we sampled vegetation, placed traps for seed rain, and quantified seed germination. We recorded climatic, edaphic, topographic, light, and disturbance conditions. We recorded a positive influence of anthropogenic disturbances on conifers in all their growth stages analyzed. For oaks and other broadleaf species, climatic variables such as temperature and precipitation showed a negative effect on adults and seeds, while disturbance showed no effect. Our results indicate that environmental conditions and anthropogenic disturbances have a differential effect on the biological groups that compose these forests and depending on the growth stage of the biological groups.

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Section: Discussioncontrasting

confidence: 41%

The importance of environmental and disturbance conditions in different growth stages of plants of temperate forest in the Sierra Norte of Oaxaca, Mexico

Gutiérrez,

Flores-Galicia,

Trejo

2024

Preprint

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“…Therefore, a warming climate may make nest incubation conditions more conducive for higher hatching success, potentially leading to larger annual cohorts. Improved reproductive success at the leading edge of geographic ranges with increasing temperatures have been demonstrated for plants (Dangremond & Feller 2016, Ordoñez-Salanueva et al 2021) and invertebrates (Ling et al 2008) and recently observed in gopher tortoises Gopherus polyphemus (Hunter et al 2021). However, warming temperatures could influence hatchling sex ratios, skewing to ward a female bias (Hawkes et al 2007, Reneker & Kamel 2016, Jensen et al 2018, although turtles may compensate by choosing different elevations or digging deeper nests (Hays et al 2001), and temperatures could also be modulated by changes in precipitation and nest moisture (Lolavar & Wyneken 2015).…”

Section: Discussionmentioning

confidence: 94%

Direct and indirect pathways for environmental drivers of hatching success in the loggerhead sea turtle

Whitesell

Hunter

Rostal

et al. 2022

Mar. Ecol. Prog. Ser.

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Nest site selection has consequences for hatching success by mediating the temperature and moisture conditions that eggs experience during the incubation period. Understanding the potentially complex pathways by which nest placement influences these abiotic mediators, and therefore hatching success, is important for predicting which nests will be successful and which may require management action. We studied the effects of loggerhead sea turtle (Caretta caretta) nest site selection on hatching success by linking nest placement characteristics to hatching success through a structural equation model. We monitored 170 nests on Ossabaw Island, Georgia, during the summers of 2017 and 2018 and tracked nest conditions throughout the incubation period. Temperature had a complex effect on hatching success—nests had higher hatching rates if they were exposed to higher mean temperatures but also if they experienced both extremely high (>34°C) and extremely low (<26.5°C) temperatures, suggesting that temperature variability plays a role in determining nest outcomes beyond the mean temperature. Likewise, hatching success declined with a higher incidence of nests being inundated by tides. We found that nests placed at the highest elevations had the highest hatching success rates, likely because those nests had a much lower chance of being washed over by high tides and had higher mean temperatures. Nests were also more successful when placed in greater amounts of vegetation, again because vegetated nests were generally warmer and were associated with fewer washover events. These results shed light on the mechanisms behind selection for certain nest site characteristics and can guide the relocation of nests as a conservation action.

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“…Recruitment constraints may then culminate in changed communities at local scales (Rosbakh et al, 2020 ; Tudela‐Isanta et al, 2018 ). In a study with two pine species, Ordoñez‐Salanueva et al ( 2021 ) discuss the likely impact that intraspecific variation in phenotypic plasticity and fundamental thermal niches may have on species distributions under a changing climate, showing that population variation at the distribution margin will potentially affect species responses to a warming climate and will be significant in defining habitat suitability and species distributions under future climates.…”

Section: Discussionmentioning

confidence: 99%

Germination temperature sensitivity differs between co‐occurring tree species and climate origins resulting in contrasting vulnerability to global warming

Filipe

Ahrens

Byrne

et al. 2023

Plant Enviro Interactions

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Thermal niche for germination and early seedling establishment at the leading edge of two pine species, under a changing climate

Cited by 9 publications

References 61 publications

The importance of environmental and disturbance conditions in different growth stages of plants of temperate forest in the Sierra Norte of Oaxaca, Mexico

The importance of environmental and disturbance conditions in different growth stages of plants of temperate forest in the Sierra Norte of Oaxaca, Mexico

Direct and indirect pathways for environmental drivers of hatching success in the loggerhead sea turtle

Germination temperature sensitivity differs between co‐occurring tree species and climate origins resulting in contrasting vulnerability to global warming

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