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pro vyhledávání: '"Marianne S. Fred"'
Publikováno v:
Journal of Insect Conservation. 26:673-681
Abstract Insect groups are declining worldwide; Lepidoptera are among the taxa most affected in terrestrial ecosystems. The main drivers of these declines are a diverse set of factors relating to environmental change including habitat loss, pollution
Autor:
Marianne S. Fred, Jon E. Brommer
Publikováno v:
Animal Behaviour. 79:313-320
Apollo butterflies in Fennoscandia differ from most butterflies because they oviposit almost randomly, away from the host plant. We studied whether this apparently maladaptive behaviour could be compensated for by high accuracy of newly hatched larva
Autor:
Jon E. Brommer, Marianne S. Fred
Publikováno v:
Insect Conservation and Diversity. 2:176-182
1. The degree of dispersal between patches in a population partly determines its structure. Mark–release–recapture (MRR) studies of an archipelago population of the endangered apollo butterfly (Parnassius apollo, L 1758) revealed that most (79%)
Publikováno v:
Biological Conservation. 130:183-192
Based on several years of data from two populations of the endangered Apollo butterfly ( Parnassius apollo , L. 1758), we study how the amount and spatial location of patches of larval (host-plant) and adult (nectar plant) resources affects the distr
Autor:
Marianne S. Fred, Jon E. Brommer
Publikováno v:
Journal of Insect Conservation. 7:85-98
Recent studies on butterflies emphasize habitat characteristics together with metapopulation parameters (patch area and isolation) giving a more thorough understanding of processes influencing population persistence and patch occupancy, than either o
Autor:
Marianne S. Fred, Jon E. Brommer
Publikováno v:
Ecological Entomology. 24:125-131
Summary 1. The movement of adults of the endangered Apollo butterfly, Parnassius apollo, was studied using mark–recapture data, within a population consisting of discrete patches of the species’ host plant (n = 43), which were segregated spatiall