Masting in wind-pollinated trees : system-specific roles of weather and pollination dynamics in driving seed production
PBN-AR
Instytucja
Wydział Geografii i Geologii (Uniwersytet Jagielloński w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Ecology (45pkt w roku publikacji)
ISSN
0012-9658
EISSN
1939-9170
Wydawca
DOI
URL
Rok publikacji
2017
Numer zeszytu
10
Strony od-do
2615-2625
Numer tomu
98
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
2,1
Autorzy
(liczba autorów: 11)
Pozostali autorzy
+ 10
Słowa kluczowe
EN
Fagus sylvatica
flowering masting
fruiting masting
mast seeding
phenological synchrony
pollen coupling
pollination Moran effect
Quercus petraca
Quercus robur
seed production
Streszczenia
Język
EN
Treść
Masting, the highly variable production of synchronized large seed crops, is a common reproductive strategy in plant populations. In wind-pollinated trees, flowering and pollination dynamics are hypothesized to provide the mechanistic link for the well-known relationship between weather and population-level seed production. Several hypotheses make predictions about the effect of weather on annual pollination success. The pollen coupling hypothesis predicts that weather and plant resources drive the flowering effort of trees which directly translates into the size of seed crops through efficient pollination. In contrast, the pollination Moran effect hypothesis predicts that weather affects pollination efficiency, leading to occasional bumper crops. Furthermore, the recently formulated phenology synchrony hypothesis predicts that Moran effects can arise because of weather effects on flowering synchrony, which, in turn, drives pollination efficiency. We investigated the relationship between weather, airborne pollen, and seed production in common European trees, two oak species (Quercus petraea and Q. robur) and beech (Fagus sylvatica) with a 19-year data set from three sites in Poland. Our results show that warm summers preceding flowering correlated with high pollen abundance and warm springs resulted in short pollen seasons (i.e. high flowering synchrony) for all three species. Pollen abundance was the best predictor for seed crops in beech, as predicted under pollen coupling. In oaks, short pollen seasons, rather than pollen abundance, correlated with large seed crops, providing support for the pollination Moran effect and phenology synchrony hypotheses. Fundamentally different mechanisms may therefore drive masting in species of the family Fagacae.
Cechy publikacji
original-article
peer-reviewed
Inne
System-identifier
60370
CrossrefMetadata from Crossref logo
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