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Titolo:
Small-scale spatial patterns determine ecological relationships: an experimental example using nectar production rates
Autore:
Klinkhamer, PGL; de Jong, TJ; Linnebank, LA;
Indirizzi:
Leiden Univ, Inst Evolutionary & Ecol Sci, Sect Plant Ecol, NL-2300 RA Leiden, Netherlands Leiden Univ Leiden Netherlands NL-2300 RA NL-2300 RA Leiden, Netherlands
Titolo Testata:
ECOLOGY LETTERS
fascicolo: 6, volume: 4, anno: 2001,
pagine: 559 - 567
SICI:
1461-023X(200111)4:6<559:SSPDER>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
BEES APIS-MELLIFERA; ECHIUM-VULGARE; FLOWERS; AVAILABILITY; DISPERSAL; VARIANCE; BEHAVIOR; FITNESS; CHOICE; PLANTS;
Keywords:
spatial patterns; nectar; pollinator; frequency dependent selection; genetic diversity;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Klinkhamer, PGL Leiden Univ, Inst Evolutionary & Ecol Sci, Sect Plant Ecol, POB 9516, NL-2300 RA Leiden, Netherlands Leiden Univ POB 9516 Leiden Netherlands NL-2300 RA rlands
Citazione:
P.G.L. Klinkhamer et al., "Small-scale spatial patterns determine ecological relationships: an experimental example using nectar production rates", ECOL LETT, 4(6), 2001, pp. 559-567

Abstract

The structuring of populations at small scales has important consequences for ecological relationships and may contribute to the maintenance of genetic diversity within populations. As an example we tested the effects of variation in nectar production rates (NPR) on pollinator visitation in experimental populations of Echium vulgare with different spatial arrangements. Bumblebees discriminate between groups of plants with different NPRs only when these groups are separated by distances larger than 6 m. Within groups, plants with high and low NPR receive similar numbers of approaches. Plants with high NPR increase the average number of approaches to all plants in thegroup; therefore, plants with low NPR benefit from nectar-rich plants nearby. These results demonstrate that the effects of NPR on pollinator servicedepend on the spatial structuring of the population. We suggest that this may help to explain the large genetic differences in NPR that we find for E. vulgare at our study site.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 02:56:49