ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Genetic evidence for female host-specific races of the common cuckoo (2000)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 407 (2000), S. 183-186 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The common cuckoo Cuculus canorus is divided into host-specific races (gentes). Females of each race lay a distinctive egg type that tends to match the host's eggs, for instance, brown and spotted for meadow pipit hosts or plain blue for redstart hosts. The puzzle is how these gentes ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/35025058
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Egg mimicry by cuckoos Cuculus canorus in relation to discrimination by hosts (1988)
    [s.l.] : Nature Publishing Group
    Nature 335 (1988), S. 630-632 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In Britain, cuckoos exploit five main hosts: meadow pipits Anthus pratensis in moorland and heathland, reed warblers Acrocephalus scirpaceus in marshland and dunnocks Prunella modularis in woodland and farmland, with robins Erithacus rubecula and pied wagtails Motacilla alba being important ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/335630a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Dumping eggs on conspecifics (1988)
    [s.l.] : Nature Publishing Group
    Nature 331 (1988), S. 19-19 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The curious habits of the cuckoo (Cuculus canorus) were known to Aristotle12, who wrote about 2,300 years ago: "it lays its eggs in the nest of smaller birds . . . they do not sit, nor hatch, nor bring up their young". Gilbert White3 regarded this parasitic habit as a "monstrous outrage on maternal ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/331019a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Cooperation and conflict in breeding groups (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 702-703 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN over one hundred and fifty species of birds, some individuals forgo breeding and, instead, assist others to feed and care for offspring. Such 'helping at the nest' is as an example of 'altruism' because the helpers increase the reproductive success of the breeders at a cost to themselves. Field ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/296702a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    The questions of what and where to eat (1981)
    [s.l.] : Nature Publishing Group
    Nature 293 (1981), S. 320-320 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ALL predators, whether lions chasing gazelle on the African plains or birds looking for berries in a back garden, must make decisions - where to hunt, which prey to select, when to move on to a new feeding area and so on. Ethologists have been interested in the costs and benefits associated with ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/293320a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Deep croaks and fighting assessment in toads Bufo bufo (1978)
    [s.l.] : Nature Publishing Group
    Nature 274 (1978), S. 683-685 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Toads spend most of the year on land but each spring they mass together in ponds to breed, all the spawning taking place within a week or two. The male clasps on to the female's back (amplexus) and may be carried around by her for several days before she eventually lays her eggs, whereupon he ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/274683a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Optimal mate selection in the toad Bufo bufo (1977)
    [s.l.] : Nature Publishing Group
    Nature 269 (1977), S. 56-58 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Toads visit ponds to breed in early spring. All the year's reproductive activity takes place within a few weeks, after which the toads leave the pond and remain on land until the next year3. Our observations were made at a pond near Oxford in March and April 1977. Every female we found in the pond ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/269056a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Polyandry, cloaca-pecking and sperm competition in dunnocks (1983)
    [s.l.] : Nature Publishing Group
    Nature 302 (1983), S. 334-336 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 a, The male first stands behind the female and pecks her cloaca. Mean duration of display was 50.2 s, range 5-120 s. Mean number of pecks was 27.9, range 0-118 pecks; 74 displays observed, b, Then he copulates. Copulation itself is very brief, the male appears to jump over the female, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/302334a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Signals of need in parent–offspring communication and their exploitation by the common cuckoo (1999)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 397 (1999), S. 667-672 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Nestling birds present vivid gapes and produce loud calls as they solicit food, but the complexity of the display is poorly understood. Here we explain the function of reed warbler begging signals and show how they are exploited by the common cuckoo, Cuculus canorus, a brood parasite. Reed warbler ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/17746
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Provisioning of nestlings by dunnocks, Prunella modularis, in pairs and trios compensation reactions by males and females (1990)
    Springer
    Behavioral ecology and sociobiology 27 (1990), S. 199-209 
    Details
    ISSN: 1432-0762
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The mating systems in a population of dunnocks included monogamy, polygyny, polyandry and polygynandry. Broods were provisioned by lone females, by females with the part-time help of one male, by females with the full-time help of one male (pairs) or by females with the part-time or full-time help of two males (trios). We compared provisioning of nestlings in these different systems and used the results of natural and experimental removals to examine how individuals reacted to the provisioning by others. In pairs, males and females provisioned at similar rates (Fig. 2a). In trios, females and alpha males fed chicks at the same rate, and at a higher rate than beta males (Fig. 2b). Females attained maximum male help when two males shared provisioning equally (Fig. 6). Females were more likely to achieve this when they were able to escape alpha male guarding during the mating period and exercise some control over mating access by the two males (Fig. 7). Female provisioning did not increase when their help was reduced from two males to one (Fig. 4 a), but it did increase when male help was further reduced to either one male's part-time help (Fig. 5 a) or no male help (Fig. 3 a). Beta males increased their provisioning rate when alpha males were removed from a trio (Fig. 4b). Alpha males may have increased their rate when beta males were removed but any reaction was small. When one male was removed from a trio, the remaining male's provisioning rate was as expected for a male in a monogamous pair. When reactions occurred, they were not sufficient to compensate for the loss of the removed adult and nestling weight was reduced. We discuss the relevance of these results to the maintenance of parental care by pairs and trios.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00180304
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...