Search Results - "Philipp, Marianne"

How a heterostylous plant species responds to life on remote islands: a comparative study of the morphology and reproductive biology of Waltheria ovata on the coasts of Ecuador and the Galápagos Islands by Bramow, Christina, Hartvig, Ida, Larsen, Signe Brandt, Philipp, Marianne

“…Heterostylous reproductive systems are usually absent on oceanic island. Self-compatibility would, generally, be advantageous for long-distance dispersing…”
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Structure of a plant-pollinator network on a pahoehoe lava desert of the Galápagos Islands by Philipp, Marianne, Böcher, Jens, R. Siegismund, Hans, R. Nielsen, Lene

“…Plant-pollinator interactions are important for the evolution and survival of the species involved. Plant-pollinator networks on oceanic islands are often…”
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The Effect of a Seed-Sucking Bug on Seed Germination of an Arctic Cushion Plant by Lundbye, Henriette, Johansson, Daniel Klingberg, Andersen, Mikkel René, Philipp, Marianne

“…Seeds of Arctic plants face numerous threats prior to dispersal. The growing season varies across years in terms of degree days, and herbivory, predation, and…”
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Long-term study of dry matter allocation and rhizome growth in Anemone nemorosa by PHILIPP, MARIANNE, PETERSEN, PETER MILAN

“…The rhizome system of Anemone nemorosa in a beech forest in Denmark was studied to determine how resources (dry matter) are allocated to segments of different…”
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Enhancement of local species richness in tundra by seed dispersal through guts of muskox and barnacle goose by Bruun, Hans Henrik, Lundgren, Rebekka, Philipp, Marianne

“…The potential contribution of vertebrate-mediated seed rain to the maintenance of plant community richness in a High Arctic ecosystem was investigated. We…”
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Unidirectional hybridization at a species' range boundary: implications for habitat tracking by Beatty, Gemma E., Philipp, Marianne, Provan, Jim

“…Introgressive hybridization between a locally rare species and a more abundant congener can drive population extinction via genetic assimilation, or the…”
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Reproductive ecology of Scalesia cordata (Asteraceae), an endangered species from the Galápagos Islands by PHILIPP, MARIANNE, NIELSEN, LENE ROSTGAARD

“…The genus Scalesia is endemic to the Galápagos Islands. Scalesia cordata is a tree occurring only in the southern part of Isabela as small, remnant populations…”
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Hidden biodiversity in the Arctic – a study of soil seed banks at Disko Island, Qeqertarsuaq, West Greenland by Philipp, Marianne, Hansen, Kjersti, Monrad, Dorte, Adsersen, Henning, Bruun, Hans Henrik, Nordal, Inger

“…Seed dispersal is a key process in plant community dynamics, and soil seed banks represent seed dispersal in time rather than in space. Despite their potential…”
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The effect of a seed-sucking bug on seed germination of an Arctic cushion plant 1 by Lundbye, Henriette, Johansson, Daniel Klingberg, Andersen, Mikkel René, Philipp, Marianne

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The effect of a seed-sucking bug on seed germination of an Arctic cushion plant1 by Lundbye, Henriette, Johansson, Daniel Klingberg, Andersen, Mikkel Rene, Philipp, Marianne

“…Seeds of Arctic plants face numerous threats prior to dispersal. The growing season varies across years in terms of degree days, and herbivory, predation, and…”
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structure of allozyme variation in Silene nutans (Caryophyllaceae) in Denmark and in north-western Europe by Van Rossum, Fabienne, Weidema, Inger R, Martin, Hélène, Le Cadre, Solenn, Touzet, Pascal, Prentice, Honor C, Philipp, Marianne

“…We used allozymes to investigate the structure of genetic variation in populations of the perennial herb Silene nutans at local (Denmark), regional (Nordic…”
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The Impact of Climate on Flowering in the High Arctic—The Case of Dryas in a Hybrid Zone by Høye, Toke Thomas, Mølgaard Ellebjerg, Susanne, Philipp, Marianne

“…The extreme seasonality of the High Arctic creates very different flowering conditions for plants in areas of early and late snowmelt. Therefore, future…”
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A comparison of pollen-siring ability and life history between males and hermaphrodites of subdioecious Silene acaulis by Philipp, M, Jakobsen, R B, Nachman, G

“…Background: Silene acaulis is an evergreen, very long-lived cushion plant. Populations of S. acaulis in Greenland are subdioecious, consisting of female,…”
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The Impact of Climate on Flowering in the High Arctic: The Case of Dryas in a Hybrid Zone by Høye, Toke Thomas, Ellebjerg, Susanne Mølgaard, Philipp, Marianne

“…The extreme seasonality of the High Arctic creates very different flowering conditions for plants in areas of early and late snowmelt. Therefore, future…”
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Structure of a plant-pollinator network on a pahoehoe lava desert of the Galápagos slands by PHILIPP, Marianne, BÖEHER, Jens, SIEGISMUND, Hans R, NIELSEN, Lene R

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What can morphology and isozymes tell us about the history of the Dryas integrifolia-octopetala complex? by Philipp, M, Siegismund, H.R

“…An earlier study of the morphological variation in the circumpolar genus Dryas in Greenland revealed that populations in east Greenland are highly variable and…”
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Modelling Gene Flow between Fields of White Clover with Honeybees as Pollen Vectors by Løjtnant, Christina L, Boelt, Birte, Clausen, Sabine K, Damgaard, Christian, Kryger, Per, Novy, Ari, Philipp, Marianne, Ingvordsen, Cathrine H, Jørgensen, Rikke Bagger

“…The portion-dilution model is a parametric restatement of the conventional view of animal pollination; it predicts the level of pollinator-mediated gene…”
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Partial self-incompatibility in the polyploid endemic species Scalesia affinis (Asteraceae) from the Galápagos: remnants of a self-incompatibility system? by NIELSEN, LENE ROSTGAARD, SIEGISMUND, HANS R., PHILIPP, MARIANNE

“…Different pollination treatments of capitula were used to examine the breeding system of individuals of the tetraploid endemic species Scalesia affinis from…”
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Selective advantage of ray florets in Scalesia affinis and S. pedunculata (Asteraceae), two endemic species from the Galápagos by Nielsen, Lene Rostgaard, Philipp, Marianne, Siegismund, Hans R.

“…The presence of neuter ray florets in species within Asteraceae is generally believed to increase pollinator attraction. In the endemic Galápagos genus…”
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Reproductive ecology of the endemic Lecocarpus pinnatifidus (Asteraceae) in an isolated population in the Galapagos Islands by Philipp, M, Hansen, L.B, Adsersen, H, Siegismund, H.R

“…Lecocarpus pinnatifidus is an endemic member of the Asteraceae occurring on only one island in the Galápagos archipelago. The capitula are large with female…”
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