Parents take both size and conspicuousness into account when feeding nestlings in dark cavity nests

2012 ◽  
Vol 84 (6) ◽  
pp. 1307-1312 ◽  
Author(s):  
Karen L. Wiebe ◽  
Tore Slagsvold
Keyword(s):  
Cavity Nests

Partial Predation at Cavity Nests in Southern Pine Forests

2010 ◽  
Vol 9 (2) ◽  
pp. 395-402 ◽  
Author(s):  
Karl E. Miller ◽  
David L. Leonard
Keyword(s):  
Pine Forests ◽  
Southern Pine ◽  
Cavity Nests

scholarly journals Recurrent seasonal occurrence of the Lineated Woodpecker (Dryocopus lineatus) in a riparian fragment of the Atlantic Forest, northeastern Brazil

2019 ◽  
Vol 27 (1) ◽  
pp. 27-30
Author(s):  
Rafael Menezes ◽  
Georgiana M. Pimentel ◽  
Ricardo S. Rosa ◽  
Alan Loures Ribeiro
Keyword(s):  
Atlantic Forest ◽  
Recurrent Events ◽  
Northeastern Brazil ◽  
Seasonal Occurrence ◽  
Fragmented Landscapes ◽  
Bird Populations ◽  
Tree Cavity ◽  
Natal Habitat ◽  
Acoustical Signals ◽  
Cavity Nests

AbstractRiparian forests play important roles as ecological corridors and refuge habitat for many bird populations in fragmented landscapes. This report describes the seasonal occurrence of the Lineated Woodpecker (Dryocopus lineatus) in a small riparian fragment of Atlantic Forest, northeastern Brazil. A female was recorded by its visual and acoustical signals from September to October 2014. Similar occurrences were observed in the same months over three consecutive years. Two major hypotheses regarding the woodpecker seasonal occurrence are discussed here: i) the use of the riparian fragment for breeding, evidenced by tree-cavity nests; and ii) fleeing of the bird from its natal habitat due to fire in adjacent sugarcane fields, which commonly are burned in these two months. Such recurrent events suggest that D. lineatus uses the riparian fragment as refuge habitat, highlighting the importance of these environments for bird populations that inhabit fragmented landscapes of the Brazilian Atlantic Forest.

CHARACTERISTICS OF ABERT'S SQUIRREL (SCIURUS ABERTI) CAVITY NESTS

2006 ◽  
Vol 51 (1) ◽  
pp. 64-70 ◽  
Author(s):  
Andrew J. Edelman ◽  
John L. Koprowski
Keyword(s):  
Cavity Nests

The effects of exposure and microbes on hatchability of eggs in open-cup and cavity nests

2007 ◽  
Vol 38 (6) ◽  
pp. 709-716 ◽  
Author(s):  
Renee D. Godard ◽  
C. Morgan Wilson ◽  
Jessica W. Frick ◽  
Paul B. Siegel ◽  
Bonnie B. Bowers
Keyword(s):  
Cavity Nests

Is the risk of nest predation heterospecifically density-dependent in precocial species belonging to different nesting guilds?

2011 ◽  
Vol 89 (12) ◽  
pp. 1164-1171 ◽  
Author(s):  
Johan Elmberg ◽  
Hannu Pöysä
Keyword(s):  
Nest Predation ◽  
Predation Rate ◽  
Apparent Competition ◽  
Artificial Nests ◽  
Nest Cavity ◽  
Density Dependent ◽  
Pine Martens ◽  
Cavity Nest ◽  
The One ◽  
Cavity Nests

Nest predation is a key source of mortality and variation in fitness, but the effect co-occurring species belonging to different nesting guilds have on each other’s nest success is poorly understood. By using artificial nests, we tested if predation on cavity nests of Common Goldeneyes ( Bucephala clangula (L., 1758)) is increased in the presence of ground nests of Mallards ( Anas platyrhynchos L., 1758) and vice versa. Specifically, by adding ground nests in the vicinity of cavity nests, we tested the hypothesis that predation on cavity nests is heterospecifically density-dependent. A shared predator, the pine marten ( Martes martes (L., 1758)), was intensively hunted in one of the study areas, but not in the other, leading to most individuals in the former being naïve immigrants. Cavity-nest fate was not affected by addition of ground nests. Similarly, ground-nest survival did not decrease when nearby cavity nests were depredated. Fate of nests in a given nest cavity was highly predictable between years in the study area with minimal removal of pine martens, but not in the one with intensive removal. Predation rate was higher on cavity nests than on ground nests. Predation on ground nests was lower in the study area with intensive removal of pine martens. We conclude there was neither apparent competition between guilds nor heterospecific density-dependence in predation risk.

scholarly journals Empty Nests do not Affect Female Mate Choice or Maternal Investment in House Wrens

The Condor ◽  
2003 ◽  
Vol 105 (2) ◽  
pp. 382-387 ◽  
Author(s):  
Natalie S. Dubois ◽  
Thomas Getty
Keyword(s):  
Mate Choice ◽  
Maternal Investment ◽  
Female Mate Choice ◽  
Experimental Manipulation ◽  
Troglodytes Aedon ◽  
Artificial Nests ◽  
House Wrens ◽  
Egg Removal ◽  
Male House ◽  
Cavity Nests

Abstract House Wrens (Troglodytes aedon) remove eggs from the nests of other birds, including conspecifics and heterospecifics and both cup and cavity nests. Egg removal by males before females arrive increases the number of empty nests in and around a male House Wren's territory, and females might use this trait in mate choice. We manipulated the presence of empty nests in House Wren territories prior to female settlement by adding artificial nests with or without plastic eggs. We used the timing of female settlement as an index of mate preference. Our manipulation had no effect on the timing of female settlement or on variables related to maternal investment such as clutch size, egg volume, or provisioning effort. Differential investment in offspring was based on the timing of a reproductive attempt, which was unrelated to the experimental manipulation. La Elección de Pareja por las Hembras o la Inversión Maternal no Son Afectadas por Nidos Vacíos en Troglodytes aedon Resumen. Troglodytes aedon remueve los huevos de nidos de otras aves, incluyendo nidos coespecíficos y heteroespecíficos, y nidos de copa y en cavidades. La remoción de los huevos por el macho antes de la llegada de la hembra aumenta el número de nidos vacíos dentro y alrededor del territorio del macho, y es posible que las hembras utilicen este caracter en la elección de pareja. Manipulamos la presencia de nidos vacíos en territorios de T. aedon adicionando nidos artificiales con y sin huevos de plástico antes del asentamiento de las hembras. Utilizamos el momento de asentamiento de la hembra como un índice de preferencia de pareja. Nuestra manipulación no tuvo un efecto sobre el momento de asentamiento de la hembra o sobre variables relacionadas con la inversión materna como tamaño de la nidada, volumen del huevo o esfuerzo de aprovisionamiento. Las diferencias en la inversión en la progenie se relacionaron con el momento en que ocurre un intento reproductivo el cual no se relacionó con la manipulación experimental.

Cavity nests and soil mounds

1983 ◽  
pp. 74-93
Author(s):  
M. V. Brian
Keyword(s):  
Cavity Nests

scholarly journals Microclimate of Tree Cavity Nests: Is it Important for Reproductive Success in Northern Flickers?

The Auk ◽  
2001 ◽  
Vol 118 (2) ◽  
pp. 412-421 ◽  
Author(s):  
Karen L. Wiebe
Keyword(s):  
Structural Characteristics ◽  
Nest Temperature ◽  
Tree Health ◽  
Nest Cavity ◽  
Dead Trees ◽  
Data Loggers ◽  
Tree Cavity ◽  
Northern Flicker ◽  
Colaptes Auratus ◽  
Cavity Nests

AbstractI measured structural characteristics of 160 Northern Flicker (Colaptes auratus) nests at Riske Creek, British Columbia, and placed electronic data-loggers in a subsample of 86 nests to record internal temperatures after the flickers completed nesting. Using multiple regression, I found that the best predictors of a variety of nest-cavity temperature variables were tree health, diameter of the tree at cavity height, and orientation of the cavity. Small and dead trees showed the most extreme (maximum and minimum) temperatures during the day, but, on average, were the coldest nests from the perspective of incubation. South-facing cavities reached the highest temperatures during the day, and the orientation of natural cavities was also biased towards the south. I predicted that cold nests would be energetically expensive for adults and nestlings, and found that clutch size was positively correlated with mean cavity temperature. However, there did not appear to be any relationship among nest temperature and hatching or fledging success.

Generalist predator, cyclic voles and cavity nests: testing the alternative prey hypothesis

Oecologia ◽  
2016 ◽  
Vol 182 (4) ◽  
pp. 1083-1093 ◽  
Author(s):  
Hannu Pöysä ◽  
Kaisa Jalava ◽  
Antti Paasivaara
Keyword(s):  
Generalist Predator ◽  
Alternative Prey ◽  
Alternative Prey Hypothesis ◽  
Cavity Nests
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