Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: social status

Sortuj według:

Ogranicz wyniki do:

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Demographic variables versus physical activity level of the Naleczow Health Resort visitors

100%

Pocztarska A., Bergier J.

Health Problems of Civilization

2015

tom 09

nr 4

The effects of habitat deterioration and social status on patrolling behavior in the territorial damselfly Calopteryx splendens

84%

Golab M. J., Golab P. A., Contreras-Garduno J., Zajac T., Sniegula S.

Polish Journal of Ecology

2017

tom 65

nr 1

Patrolling behavior plays an important role in resource defense and in shaping social interactions in territorial species. However, it is not clear whether and how resource deterioration affects patrolling and interactions between territorial males. We addressed this issue by studying the territorial patrolling of damselfly Calopteryx splendens males, which use riverine vegetation patches composed of floating rafts of Potamogeton natans as territories. Males can hold single territories established on one vegetation patch (solitary residents) or hold adjacent territories established on shared vegetation patch (contiguous residents). The study predicted that solitary males engage more in patrolling than contiguous residents and that patrolling intensity is proportional to patch quality. Two types of semi-natural vegetation patches were sunk: of high and low quality measured on the basis of the patch size (range 2–5 m2) and its attractiveness to damselflies (measured as number of residents, non-territorial males and contests observed at a given patch). Changes in number of patrolling flights were monitored for solitary and two contiguous residents: first which hold territory situated closer to the patch centre and secondary holding territory nearer to the edge of a patch. Results indicated that solitary residents patrolled more often than either of the two contiguous residents. Habitat deterioration significantly reduced the patrolling intensity of both single and first contiguous resident, however, their patrolling activity was not resumed at the same intensity after the original patch had been restored. The secondary resident of a contiguous pair did not respond to habitat deterioration, but increased its patrolling activity following restoration. Patch quality was found to have no impact on patrolling, which implies that social context can be more important in predicting changes in patrolling behavior in response to resource deterioration.

Morphology of the white-tailed deer tarsal gland

67%

Osborn D. A., Miller K. V., Hoffman D. M., Dickerson W. H., Gassett J. W., Quist C. F.

Acta Theriologica

2000

tom 45

nr 1

The communication of reproductive information in cervids is thought to be accomplished by odors associated with skin glands. The tarsal glands of white-tailed deer Odocoileus virginianus (Zimmerman, 1780), in particular, are the focus of many breeding behaviors and appear to attract the interest of conspecifics. These glands are annointed with urine with increasing frequency as the breeding season approaches and may convey social odors relating to dominance, reproductive condition, or individual recognition. We collected tarsal glands from male and female white-tailed deer of various ages during the breeding and non-breeding seasons. Using light microscopy, we examined skin biopsies of tarsal glands microscopically to quantify sebaceous and apocrine glandular activity. Measurements of sebaceous and apocrine glands did not differ between sexes or seasons, or among age classes. During the breeding season, the tarsal tufts of older males become darkly stained. Although the tarsal glands of white-tailed deer are important in conspecific communication, the staining and associated odors appears to be unrelated to variations in the sebaceous or apocrine gland activity. Rather, odor production on the tarsal gland likely results from interactions among urinary constituents, microbial decomposition, and glandular secretions.

Ograniczanie wyników

1 Acta Theriologica

1 Health Problems of Civilization

1 Polish Journal of Ecology

1 Bergier J.

1 Contreras-Garduno J.

1 Dickerson W. H.

1 Gassett J. W.

1 Golab M. J.

1 Golab P. A.

1 Hoffman D. M.

1 Miller K. V.

1 Osborn D. A.

1 Pocztarska A.

1 Quist C. F.

1 Sniegula S.

1 Zajac T.

1 2017

1 2015

1 2000

Wyniki wyszukiwania

Demographic variables versus physical activity level of the Naleczow Health Resort visitors

The effects of habitat deterioration and social status on patrolling behavior in the territorial damselfly Calopteryx splendens

Morphology of the white-tailed deer tarsal gland