TY  - JOUR
A1  - Oervoessy, Noemi
A1  - Koroesi, Adam
A1  - Batary, Peter
A1  - Vozar, Agnes
A1  - Peregovits, Laszlo
T1  - Habitat Requirements of the Protected Southern Festoon (Zerynthia Polysena); Adult, Egg and Larval Distribution in a Highly Degraded Habitat Complex
JF  - Acta Zoologica Academiae Scientiarum Hungaricae
N2  - Habitat quality affects the presence and size of butterfly populations. Resources for all life stages must be found in a given or few habitat patches. Southern festoon (Zerynthia polyxena) is a vulnerable, but locally abundant species in Hungary. The larva requires birthwort (Aristolochia clematitis) as food plant. We examined the small scale habitat use of adults and distribution of eggs and larvae among different vegetation types to reveal the requirements of the species in all life stages. Transect counts were conducted in a tree plantation complex comprising four types of vegetation. Number (+/- SE) of adults, eggs and larvae were lowest in poplar plantation (adult 0.3 +/- 0.2, egg 1.1 +/- 1.1, larva 0.6 +/- 0.3). Medium amount of butterflies were observed in open (adult 8.3 +/- 2.9, egg 3.1 +/- 2.6, larva 3.1 +/- 1.9) and black-locust (adult 9.4 +/- 4.2, egg 12.7 +/- 4.9, larva 4.1 +/- 1.1) habitat. Number of butterflies was highest in hummocks (adult 13.5 +/- 1.5, egg 12.9 +/- 5.7, larva 8.4 +/- 2.1). Adults avoided bare ground. We encountered most eggs in dense food plant patches with high plants. Food plant height also positively influenced the occurrence of the larvae. Although distribution of adults and juvenile forms showed quite similar patterns, we could also reveal some differences that caused by different environmental conditions in distinct vegetation types. Our study stresses the importance of habitat quality, which affects population size of butterflies even in a highly degraded habitat complex.
KW  - habitat quality
KW  - resource use
KW  - life stage
KW  - butterfly euphydryas-aurinia
KW  - ecology
KW  - metapopulation
KW  - conservation
KW  - quality
KW  - management
KW  - population
KW  - nympahlidae
KW  - fragmented landscapes
KW  - lepidoptera
KW  - tree plantations
KW  - habitat patch
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-117810
VL  - 60
IS  - 4
ER  - 
TY  - JOUR
A1  - Ruedenauer, Fabian A.
A1  - Raubenheimer, David
A1  - Kessner-Beierlein, Daniela
A1  - Grund-Mueller, Nils
A1  - Noack, Lisa
A1  - Spaethe, Johannes
A1  - Leonhardt, Sara D.
T1  - Best be(e) on low fat: linking nutrient perception, regulation and fitness
JF  - Ecology Letters
N2  - Preventing malnutrition through consuming nutritionally appropriate resources represents a challenge for foraging animals. This is due to often high variation in the nutritional quality of available resources. Foragers consequently need to evaluate different food sources. However, even the same food source can provide a plethora of nutritional and non‐nutritional cues, which could serve for quality assessment. We show that bumblebees, Bombus terrestris , overcome this challenge by relying on lipids as nutritional cue when selecting pollen. The bees ‘prioritised’ lipid perception in learning experiments and avoided lipid consumption in feeding experiments, which supported survival and reproduction. In contrast, survival and reproduction were severely reduced by increased lipid contents. Our study highlights the importance of fat regulation for pollen foraging bumblebees. It also reveals that nutrient perception, nutrient regulation and reproductive fitness can be linked, which represents an effective strategy enabling quick foraging decisions that prevent malnutrition and maximise fitness.
KW  - bee decline
KW  - foraging
KW  - nutrition
KW  - plant-insect interactions
KW  - pollen quality
KW  - PER
KW  - resource use
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-208709
VL  - 23
IS  - 3
ER  -