Notes on the breeding behaviour and nesting preferences of Blackish nightjar (Nyctipolus nigrescens) in the Napo province in eastern Ecuador

Individual condition at one stage of the annual cycle is expected to influence behaviour during subsequent stages, yet experimental evidence of food-mediated carry-over effects is scarce. We used a food supplementation experiment to test the effects of food supply during the breeding season on migration phenology and non-breeding behaviour. We provided an unlimited supply of fish to black-legged kittiwakes ( Rissa tridactyla ) during their breeding season on Middleton Island, Alaska, monitored reproductive phenology and breeding success, and used light-level geolocation to observe non-breeding behaviour. Among successful breeders, fed kittiwakes departed the colony earlier than unfed controls. Fed kittiwakes travelled less than controls during the breeding season, contracting their non-breeding range. Our results demonstrate that food supply during the breeding season affects non-breeding phenology, movement and distribution, providing a potential behavioural mechanism underlying observed survival costs of reproduction.

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NEST SITE SELECTION BY BUMBLE BEES (HYMENOPTERA: APIDAE) IN SOUTHERN ALBERTA

The Canadian Entomologist ◽

10.4039/ent110301-3 ◽

1978 ◽

Vol 110 (3) ◽

pp. 301-318 ◽

Cited By ~ 43

Author(s):

K. W. Richards

Keyword(s):

Site Selection ◽

Nest Site ◽

Niche Overlap ◽

Nest Site Selection ◽

Bumble Bees ◽

Social Parasites ◽

Southern Alberta ◽

Nesting Sites ◽

Coexisting Species ◽

Nesting Preferences

AbstractThe niche breadth and overlap in nesting preferences of 15 species of bumble bees were investigated in Alberta. Some of the factors that influence the distribution of nesting sites and abundance of species and permit the species to coexist in sympatry are discussed. Artificial domiciles were used as potential nesting sites. Some species were specialists in terms of nest site selection while others were generalists. The few natural nests found, the long periods spent by queens searching for nests, the high frequency of usurpation or direct interference and death of intruders, and the frequency of high niche overlap values between species are evidence that nesting sites are limited and are incompletely partitioned among the coexisting species. Usurpation also demonstrates the competition among individuals and species. Phenological differences in nest establishment influence the competition among the species. Camouflaging of tunnels presumably reduces the intensity of usurpation and protects queens and the brood from inclement weather and from social parasites (e.g., Psithyrus) and predators.

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Nesting Preferences for Two Woodpecker Species (Dendrocopos Major and Dendrocopos Medius) in Comana Forest, Southern Romania/ Preferințele de cuibărit la două specii de ciocănitori (Dendrocopos Major şi Dendrocopos Medius), în Pădurea Comana, Sudul României

Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa” ◽

10.2478/travmu-2014-0004 ◽

2015 ◽

Vol 57 (1) ◽

pp. 35-45 ◽

Cited By ~ 3

Author(s):

Ioana Damoc ◽

Tiberiu Sahlean ◽

Roxana Ion ◽

Mihaela Ion ◽

Lotus Elena Meşter

Keyword(s):

Food Sources ◽

Pedunculate Oak ◽

Large Trees ◽

Nesting Sites ◽

Turkey Oak ◽

Nest Height ◽

Middle Spotted Woodpecker ◽

Dendrocopos Major ◽

Nesting Preferences

Abstract The main goal of this study is to get a better insight of the habitat requirements for the Great- and Middle Spotted Woodpeckers. Woodpeckers are forest specialists, threatened all over Europe mainly by the loss of forest habitats and also by the loss in quality of the habitat by reducing the food sources and nesting sites. Both species showed a strong preference for oaks, lime, large trees and dead wood for nesting, but Middle Spotted Woodpecker proved to be more selective in terms of tree species. Nest-height was influenced by tree diameter. Both species have the same nesting preferences for Turkey oak, lime and Pedunculate oak, in a Quercetum farnetto-cerris type of forest. The orientation of the nest hole on the tree was mainly NE-E-SE for Middle Spotted Woodpecker and N-NE-E for Great Spotted Woodpecker.

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Vegetation and nesting preferences of black noddies at Masthead Island, Great Barrier Reef. II Patterns at the micro-scale

Austral Ecology ◽

10.1111/j.1442-9993.1984.tb01372.x ◽

1984 ◽

Vol 9 (4) ◽

pp. 343-352 ◽

Cited By ~ 5

Author(s):

K. HULSMAN ◽

P. DALE ◽

B. R. JAHNKE

Keyword(s):

Great Barrier Reef ◽

Barrier Reef ◽

Micro Scale ◽

Nesting Preferences

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Breeding behaviour of ectotherms at high latitudes: the case of the natterjack toad Epidalea calamita at its northern range limit

Behaviour ◽

10.1163/1568539x-bja10134 ◽

2021 ◽

pp. 1-20

Author(s):

Linda Saare ◽

Riinu Rannap

Keyword(s):

Climatic Conditions ◽

Energetic Cost ◽

Breeding Period ◽

High Latitudes ◽

Range Limit ◽

Photo Identification ◽

Breeding Behaviour ◽

Risk Of Predation ◽

Increased Risk ◽

Northern Range Limit

Abstract We explored the breeding behaviour of a threatened amphibian, the natterjack toad, at its northern range limit in Estonia, to determine the extent to which reproduction is affected by harsh and unstable climatic conditions. Using photo identification of specimens, we found that in optimal weather conditions males formed three breeding cohorts, while in adverse conditions only a single cohort occurred and under extreme conditions reproduction was skipped entirely. During the extended breeding season, larger males participated in reproduction throughout the breeding period, while smaller males appeared in later cohorts. Breeding success was related to the calling effort of a male, where larger males had greater mating success than smaller ones. We found that the natterjack toad males exhibit significant plasticity in reproductive behaviour at the northern range limit, which, given the energetic cost of reproduction and the increased risk of predation, allows them to increase their fitness at high latitudes.

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