Nesting Behavior and Nestling Care of the Pavonine Quetzal (Pharomachrus pavoninus)

Lebbin, Daniel J.

doi:10.1676/06-138.1

Cited by 6 publications

(5 citation statements)

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“…Although provisioning rates of Orange‐breasted and Red‐headed trogons were low (∼ 1 delivery/h/nestling), food items were large as reported for other Neotropical trogons (Skutch 1976, Johnsgard 2000). We also found that males of both species played a greater role in provisioning nestlings than females, and similar observations have been reported for Resplendent Quetzals (Wheelwright 1983), Narina Trogons (Zimmerman et al 1996), and Pavonine Quetzals ( Pharomachrus pavoninus ; Lebbin 2007). However, male and female Elegant Trogons ( Trogon elegans ; Hall and Karubian 1996) and Golden‐headed Quetzals ( Pharomachrus auriceps ; Lohnes and Greeney 2008) provision nestlings at similar rates, whereas female Mountain Trogons ( T. mexicanus ) were reported as being more efficient food providers than males (Johnsgard 2000).…”

Section: Discussionsupporting

confidence: 89%

“…J. Field Ornithol. observations have been reported for Resplendent Quetzals (Wheelwright 1983), Narina Trogons (Zimmerman et al 1996), and Pavonine Quetzals (Pharomachrus pavoninus; Lebbin 2007). However, male and female Elegant Trogons (Trogon elegans; Hall and Karubian 1996) and Golden-headed Quetzals (Pharomachrus auriceps; Lohnes and Greeney 2008) provision nestlings at similar rates, whereas female Mountain Trogons (T. mexicanus) were reported as being more efficient food providers than males (Johnsgard 2000).…”

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confidence: 79%

“…Many aspects of their ecology are still unknown. Most of the available published work on the family has focused on Neotropical species (Skutch 1944, 1948, 1956, 1959, 1962, Eguiarte and Del Rio 1985, Remsen et al 1993, Hall and Karubian 1996, Valdivia‐Hoeflich et al 2005, Lebbin 2007, Gonzalez‐Rojas et al 2008, Lohnes and Greeney 2008). In contrast, little is known about even the basic natural history of Asian and African species, data that may be important in the context of conservation, habitat management, or to draw comparisons with Neotropical members of the family.…”

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confidence: 99%

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Breeding biology of Orange-breasted (Harpactes oreskios) and Red-headed (H. erythrocephalus) trogons in Khao Yai National Park, Thailand

Steward

Pierce

2011

Journal of Field Ornithology

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As tropical habitats continue to be cleared or degraded, obtaining basic information about the ecology of birds in intact habitats is essential for understanding their life histories. We studied the breeding biology of Orange‐breasted Trogons (Harpactes oreskios) and Red‐headed Trogons (H. erythrocephalus) in Khao Yai National Park in Thailand from 2003 to 2009. Nests were in excavated cavities in well‐rotted stumps or other tree parts. Mean cavity heights were 2.1 m (N= 19) for Orange‐breasted Trogons and 2.0 m (N= 49) for Red‐headed Trogons. Eggs were laid every other day. For Orange‐breasted Trogons, the mean clutch size was 2.4 ± 0.1 (SE) eggs (N= 17); incubation periods for two nests were 17 and 18 d, respectively, and the nestling period ranged from 12 to at least 14 d (N= 4). For Red‐headed Trogons, the mean clutch size was 2.6 ± 0.1 eggs (N= 48), the mean incubation period was 18 d (N= 9), and the mean nestling period was 13.4 d (N= 5). In both species, both males and females excavated nest sites, incubated eggs, and brooded and provisioned nestlings. Only females incubated and brooded at night, and males provisioned nestlings more than females. Breeding seasons lasted from January to March for Orange‐breasted Trogons, and from late February to July for Red‐headed Trogons. Mayfield estimates of nest success were 8% and 9% for Orange‐breasted and Red‐headed trogons, respectively. Unusual for cavity nesters, nest failure due to predation was high and nestling periods short. The low nesting success is typical of many other tropical species, but considerably lower than reported for some Neotropical trogons, possibly due to the unenclosed structure of the nests of these Asian trogons.

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Section: Discussionsupporting

confidence: 89%

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confidence: 79%

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confidence: 99%

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Breeding biology of Orange-breasted (Harpactes oreskios) and Red-headed (H. erythrocephalus) trogons in Khao Yai National Park, Thailand

Steward

Pierce

2011

Journal of Field Ornithology

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“…(1996); 6 Wheelwright (1983); 7 Skutch (1944); 8 LaBastille et al. (1972); 9 Bowes and Allen (1969); 10 Pulgarin‐R and Laverde‐R (2015); 11 Lebbin (2007); 12 Skutch (1959); 13 Hall and Karublan (1996); 14 Skutch (1942); 15 Skutch (1956); 16 Schulenberg and Greeney (2020); 17 Johnsgard (2000); 18 Skutch (1972); 19 Skutch (1948); 20 Riehl (2005); 21 Skutch (1962); 22 Haverschmidt (1968); and 23 Skutch (1972).…”

Section: Resultsmentioning

confidence: 99%

Comparative reproductive ecology of Old and New World Trogons, an order in decline across the world

Şahin Arslan,

Martin

2024

Ecology and Evolution

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Many tropical species show declining populations. The pantropical order Trogoniformes has 76% of its species ranked as declining, reflecting a worldwide problem. Here, we report on the reproductive ecology and life history traits of the declining and near‐threatened old world Whitehead's Trogon (Harpactes whiteheadi), the declining new world Collared Trogon (Trogon collaris), and the stable Masked Trogon (T. personatus). We also reviewed the literature on reproductive ecology and life history traits of trogons to assess possible commonalities that might help explain population declines. We found that the declining Whitehead's and Collared Trogons had reasonable nest success (32% and 25%, respectively), while the stable Masked Trogon had poor reproductive success (9%), all contrary to population trends. However, the limited literature data suggested that poor reproductive success may be common among trogons, which may contribute to population declines. Parents fed young at a low rate and had long on‐bouts for incubation and nestling warming that reduced activity at the nest, as favored by high nest predation risk over evolutionary time. We found that young fledged from the nest with poorly developed wings, as also favored by high nest predation risk. Evolved nestling periods among trogon species suggests that poor wing development is likely common. Wing development has been shown to affect juvenile survival after leaving the nest. The poor wing development may be an important contributor to population declines that deserves more attention. Evolved life history traits are important to recognize as creating population vulnerabilities in a changing world.

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“…For example, male peacocks spread and shake their tails to attract potential mates (Alcock, ). The elaborate ornamentation of the male quetzal is displayed to obtain female mating acceptance (Lebbin, ); similarly, sage grouse birds display their plumage to attract a mate (Alcock, ). These sensory signals usually lead to mating responses.…”

Section: Introductionmentioning

confidence: 99%

Calcineurin is required for male sex pheromone biosynthesis and female acceptance

Zhao

Zhang

et al. 2018

Insect Molecular Biology

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Lepidoptera sex pheromone biosynthesis is regulated by pheromone biosynthesis activating neuropeptide (PBAN). PBAN regulates not only female sex pheromone biosynthesis but also male sex pheromone biosynthesis. Previous research has confirmed that PBAN regulates sex pheromone biosynthesis using Ca as a secondary messenger in all examined species to date. However, the downstream signal of Ca has remained elusive. In the present study, calcineurin A (CNA), a downstream signal of Ca , was discovered in Helicoverpa armigera male hairpencil and named HaCNA. Sequence analysis demonstrated that the open reading frame of HaCNA contains 1488 nucleotides encoding 495 amino acid residues. A homology search revealed that HaCNA shares a high amino acid identity with the CNA of other insects. Developmental and spatial expression analyses revealed that the mRNA levels of HaCNA peaked at 24 h after emergence and that HaCNA expression was ubiquitous in all examined tissues. Activity analysis revealed that PBAN activates HaCNA, and a Ca inhibitor, Lacl , attenuated the effect of PBAN by decreasing HaCNA activity. Pharmacological inhibitor and RNA interference-mediated knockdown assays revealed that both activity inhibition and decreased mRNA levels of HaCNA led to a significant decrease in the production of the male sex pheromone components [octadecanol and (Z)-11 hexadecanol)] and in the efficacy of female mating acceptance. Our results demonstrate that HaCNA acts as downstream signal of PBAN/Ca and plays an important role in PBAN-induced male sex pheromone biosynthesis and female mating acceptance.

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Nesting Behavior and Nestling Care of the Pavonine Quetzal (Pharomachrus pavoninus)

Cited by 6 publications

References 4 publications

Breeding biology of Orange-breasted (Harpactes oreskios) and Red-headed (H. erythrocephalus) trogons in Khao Yai National Park, Thailand

Breeding biology of Orange-breasted (Harpactes oreskios) and Red-headed (H. erythrocephalus) trogons in Khao Yai National Park, Thailand

Comparative reproductive ecology of Old and New World Trogons, an order in decline across the world

Calcineurin is required for male sex pheromone biosynthesis and female acceptance

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