Pollinators and visitors of the generalized food-deceptive orchid Dactylorhiza majalis in North-Eastern Poland
PBN-AR
Instytucja
Wydział Biologiczno-Chemiczny (Uniwersytet w Białymstoku)
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
BIOLOGIA
ISSN
0006-3088
EISSN
1336-9563
Wydawca
VERSITA
DOI
URL
Rok publikacji
2019
Numer zeszytu
Strony od-do
1-11
Numer tomu
Identyfikator DOI
Liczba arkuszy
1,75
Słowa kluczowe
angielski
Apis mellifera;
Pollinators;
Flower visitors;
Non-rewarding orchids;
Plant-pollinator interaction;
Open access
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Streszczenia
Język
angielski
Treść
Pollinator foraging behavior plays a key role in breeding and therefore affects the evolution of the orchid reproductive strategy. Food-deceptive orchids usually implement a generalized plant pollination strategy and a relatively diverse group of pollinators visit them. Dactylorhiza majalis is a food-deceptive, early-flowering orchid that relies on insect-mediated pollination. This study’s objectives were to identify D. majalis’ pollinators and flower visitors and their foraging behaviors on D. majalis inflorescences. We also assessed the bending movement time to determine the relationship between bending time and the duration of pollinators’ visits. To assess pollination efficiency, we measured the spur length of D. majalis flowers, which is expected to affect the mechanical fit to pollinators/“potential” pollinators. The arthropod fauna were investigated to examine the availability of “potential” pollinators in populations. We identified Apis mellifera as this orchid’s main pollinator and confirmed that few of the flower visitors belonged to Diptera (12 individuals, 9 taxa), Hymenoptera (3 individuals, 3 taxa), or Coleoptera (2 individuals, 2 taxa) in our dataset, which was collected over a 2-year period and includes 360 h of video. The arthropods were collected by a sweep net in D. majalis populations and there were fewer Hymenoptera (2.9–23.2%) and Coleoptera (4.4–23.8%) visitors but more Diptera (23.3–58.6%) visitors. We found that A. mellifera foraged in different ways on D. majalis inflorescences, thereby resulting in cross-pollination and/or geitonogamy; however, the bending time data supported the hypothesis about promoting cross-pollination while decreasing self-pollination, but these data do not exclude the possibility of geitonogamy.
Cechy publikacji
publikacja naukowa oryginalna
Inne
System-identifier
PX-5d5ba455d5de4221b32f63cc
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