The South Windsor Bank Swallow Colony

Bergström, Eva

doi:10.2307/4510241

Cited by 6 publications

(5 citation statements)

References 2 publications

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“…Stoner (1926Stoner ( , 1936 reported similar findings. At the only undisturbed sand bank for which we have information from successive breeding seasons, we observed a fluctuation in bank use apparently similar to that described by Bergstrom (1951) and Stoner (1936). It is possible that all of these observations can be accounted for by changes in habitat suitability between breeding seasons.…”

Section: Shortage Of Suitable Nesting Habitat?supporting

confidence: 86%

“…If shortages of breeding habitat exist, then sand bank sites known to be suitable for Bank Swallow inhabitancy should be equally and maximally used each breeding season. Bergstrom (1951) reported considerable annual fluctuation (over a 7 -yr period) in the number of Bank Swallows nesting at a specific river bank site. Stoner (1926Stoner ( , 1936 reported similar findings.…”

Section: Shortage Of Suitable Nesting Habitat?mentioning

confidence: 99%

“…All adult birds we studied individually were caught in mist nets or by hand at night in the nest burrows (as described by Bergstrom 1951) and were marked permanently with United States Fish and Wildlife Service numbered aluminum leg bands and temporarily with green, red, and yellow Magic Marker®, applied in various combinations to the birds' white breast feathers. Svensson ( 1969) and Oring and Knudson (1973) apparently used a similar marking method.…”

Section: Experimental Populations and Techniquesmentioning

confidence: 99%

“…That the number of aerial arthropods decreases dramatically with decreasing temperature or increasing precipitation has been demonstrated by a variety of methods (Hardy and Milne 1938, McClure 1938, Glick 1939, Freeman 1945. Further, extensive mortality of adults and young of species dependent on aerial arthropods for food has often been observed following periods of cold, damp weather (Koskimies 1950, Lack and Lack 1951, Haigh 1968), especially among swallows (Chapman 1935, Bergstrom 1951, MacLeod et al 1953, Mason 1953, Benton and Tucker 1968, Skead and Skead 1970. If social facilitation of foraging is an important feature of Bank Swallow coloniality, then associated benefits should be most obvious during times of prey scarcity.…”

Section: Social Foraging?mentioning

confidence: 99%

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Advantages and Disadvantages of Bank Swallow (Riparia riparia) Coloniality

Hoogland¹,

Sherman²

1976

Ecological Monographs

472

204

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We studied the advantages and disadvantages of Bank Swallow (Riparia riparia) coloniality in 1972 and 1973 by examining 54 colonies, ranging in size from 2 to 451 active nests, near Ann Arbor, Michigan USA. Four disadvantages were investigated: (1) increased competition for nest burrows and nest building materials, (2) increased competition for mates and matings, (3) increased possibilities of misdirected parental care because of either brood parasitism or the mixing up of unrelated young, and (4) increased transmission of ectoparasites. Physical interference in reproductive functions and the possibility of intraspecific killing of offspring were also considered. The intensity of the various forms of competition increased with increasing colony size, though not always directly. Flea infestation also increased with increasing colony size. Intraspecific brood parasitism was not observed, and parent Bank Swallows began discriminating between their own and unrelated offspring at the time when the young first began to mix. Three hypotheses to explain the maintenance of coloniality were tested: (1) shortage of suitable nesting habitats, (2) advantages associated with social foraging, and (3) reduced predation on adults, young, or eggs. Shortage of suitable habitat could not be demonstrated. Parents did not appear to feed in groups, and survivorship of nestlings during cold weather and weight of nestlings at 10 days of age both suggested that competition for food increased with increasing colony size. Although there was no relationship between colony size and amount of nocturnal predation, adult birds mobbed diurnal predators. Using a stuffed weasel, we studied such mobbing responses. Our data suggest that diurnal predators at larger colonies are (1) detected more quickly, (2) mobbed by greater numbers of birds, and (3) subjected to more vocal commotion than are predators at smaller colonies. Further, we demonstrated that mobbing is at least sometimes effective in deterring avian predators. We suggest that reduced predation on eggs and young, resulting from both group defense and "selfish herd" effects, is an important advantage of Bank Swallow coloniality.

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Section: Shortage Of Suitable Nesting Habitat?supporting

confidence: 86%

Section: Shortage Of Suitable Nesting Habitat?mentioning

confidence: 99%

Section: Experimental Populations and Techniquesmentioning

confidence: 99%

Section: Social Foraging?mentioning

confidence: 99%

See 2 more Smart Citations

Advantages and Disadvantages of Bank Swallow (Riparia riparia) Coloniality

Hoogland¹,

Sherman²

1976

Ecological Monographs

472

204

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“…The onset of the nesting season in Iowa was within the range found in Illinois and Ohio (Good, 1952). Although the tendency for birds to return to the same nesting area each year had not been documented previously for Common Crows, this fidelity has been shown for other migra tory birds (e.g., Mickey, 1943;Bergstrom, 1951;Sladen and Tickell, 1958).…”

Section: Discussionmentioning

confidence: 76%

The Common Crow as a sentinel species of rabies in wildlife populations

Schaefer

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INFORMATION TO USERSThis reproduction was made from a copy of a document sent to us for microfilming. While the most advanced technology has been used to photograph and reproduce this document, the quality of the reproduction is heavily dependent upon the quality of the material submitted.The following explanation of techniques is provided to help clarify markings or notations which may appear on this reproduction. 1.The sign or "target" for pages apparently lacking from the document photographed is "Missing Page(s)". If it was possible to obtain the missing page(s) or section, they are spliced into the film along witii adjacent pages. This may have necessitated cutting through an image and duplicating adjacent pages to assure complete continuity.2. When an image on the film is obliterated with a round black mark, it is an indication of either blurred copy because of movement during exposure, duplicate copy, or copyrighted materials that should not have been filmed. For blurred pages, a good image of the page can be found in the adjacent frame. If copyrighted materials were deleted, a target note will appear listing the pages in the adjacent frame.3. When a map, drawing or chart, etc., is part of the material being photographed, a definite method of "sectioning" the material has been followed. It is customary to begin filming at the upper left hand corner of a large sheet and to continue from left to right in equal sections with small overlaps. If necessary, sectioning is continued again-beginning below the first row and continuing on until complete.

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Kausale und funktionale Aspekte der Verteilung von Uferschwalbenbruten (Riparia riparia L.)

Sieber

2010

Zeitschrift Für Tierpsychologie

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For breeding, sand martins dig burrows in sandy cliffs. The distribution of burrows and broods is non‐random in different respects. The study deals with proximate factors responsible for this feature and with the question, whether differences in breeding success are correlated with differences in the distribution of burrows and broods. A series of field experiments shows that characteristics of the cliff (upper and/or lower limit, existing burrows, ledges) and of the conspecifics (social attraction, defence of burrows) influence the birds' selection of a burrow‐site and that site‐attachment is also involved. Birds in the highest burrows suffer less predation by a beech marten; the breeding success is correlated with the length of the burrows and with the synchronisation of broods in the sub‐colonies.

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The South Windsor Bank Swallow Colony

Cited by 6 publications

References 2 publications

Advantages and Disadvantages of Bank Swallow (Riparia riparia) Coloniality

Advantages and Disadvantages of Bank Swallow (Riparia riparia) Coloniality

The Common Crow as a sentinel species of rabies in wildlife populations

Kausale und funktionale Aspekte der Verteilung von Uferschwalbenbruten (Riparia riparia L.)

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