scholarly journals Fish-line Entanglement of Nesting Mourning Dove, Zenaida macroura

2007 ◽  
Vol 121 (4) ◽  
pp. 436 ◽  
Author(s):  
Glenn H. Parker ◽  
Chris G. Blomme
Keyword(s):  
Gravid Female ◽  
Mourning Dove ◽  
Detailed Account ◽  
Due Diligence ◽  
Zenaida Macroura ◽  
Nesting Material

We give a detailed account of monofilament entanglement in nesting material of a gravid female Mourning Dove (Zenaida macroura) which resulted in death. Such incidents substantiate the hazards of anthropogenic materials and the need to dispose of them with due diligence.

Mourning Dove (Zenaida macroura)

2020 ◽  
Author(s):  
David L. Otis ◽  
John H. Schulz ◽  
David Miller ◽  
R. E. Mirarchi ◽  
T. S. Baskett
Keyword(s):  
Mourning Dove ◽  
Zenaida Macroura

Reanalysis of Historical Mourning Dove Nest Data by Using a Bayesian Approach

2016 ◽  
Vol 7 (2) ◽  
pp. 292-303 ◽  
Author(s):  
John Snyder ◽  
Xiaoming Gao ◽  
John H. Schulz ◽  
Joshua J. Millspaugh
Keyword(s):  
Hierarchical Modeling ◽  
Nest Survival ◽  
Original Study ◽  
Egg Laying ◽  
Mourning Dove ◽  
Zenaida Macroura ◽  
Bayesian Hierarchical ◽  
Trade Offs ◽  
Original Dataset ◽  
Nest Height

Abstract We reconstructed a historical mourning dove Zenaida macroura nesting dataset to estimate nest survival and investigate the effect of covariates by using a Bayesian hierarchical model. During 1979–1980, 106 study areas, across 27 states, were established to conduct weekly nest searches during February–October. We used roughly 11,000 data sheets to reconstruct the dataset containing 7,139 nests compared to 6,950 nests in the original study. Original and reconstructed nest survival estimates showed little difference by using the original analysis methodology, that is, the Mayfield method. Thus, we assumed we closely replicated the original dataset; distributions of nests found, birds hatched, and birds fledged also showed similar trends. After confirming the validity of the reconstructed dataset, we evaluated 10 different models by using a Bayesian hierarchical modeling approach; the final model contained variables for nest age or stage, nest height, region, but not habitat. The year 1980 had a higher probability of nest survival compared to 1979, and nest survival increased with nest height. The nest encounter probability increased at days 4 and 11 of the nesting cycle, providing some insight into the convenience sampling used in the original study. Our reanalysis with the use of covariates confirms previous hypotheses that mourning doves are habitat generalists, but it adds new information showing lower nest survival during nest initiation and egg laying and a decline when fledglings would be 4 or 5 d old. Regional differences in mourning dove nest survival confirm existing hypotheses about northern states demonstrating greater nest success compared to southern states where differences may reflect trade-offs associated with northern latitudes, weather differences, or food availability.

scholarly journals Using Fecal Glucocorticoids for Stress Assessment in Mourning Doves

The Condor ◽  
2003 ◽  
Vol 105 (4) ◽  
pp. 696-706 ◽  
Author(s):  
Brian E. Washburn ◽  
Joshua J. Millspaugh ◽  
John H. Schulz ◽  
Susan B. Jones ◽  
Tony Mong
Keyword(s):  
Body Mass ◽  
Mourning Dove ◽  
Zenaida Macroura ◽  
Acth Challenge ◽  
Fecal Glucocorticoid Metabolites ◽  
In Captivity ◽  
Mourning Doves ◽  
Para Determinar ◽  
Fecal Glucocorticoids ◽  
Fecal Glucocorticoid

Abstract Fecal glucocorticoid assays provide a potentially useful, noninvasive means to study physiological responses of wildlife to various stressors. The objective of our study was to validate a method for measuring glucocorticoid metabolites in Mourning Dove (Zenaida macroura) feces. We validated the assay using standard procedures (e.g., parallelism, recovery of exogenous corticosterone) to demonstrate that the assay accurately and precisely measured glucocorticoid metabolites in Mourning Dove fecal extracts. We conducted adrenocorticotropin (ACTH) challenge experiments to validate the assay's ability to determine biologically important changes in fecal glucocorticoids. Fecal glucocorticoid levels increased significantly approximately 2–3 hr after administration of ACTH at 50 IU per kg body mass to wild Mourning Doves held in captivity. In contrast, fecal glucocorticoid metabolites did not increase in control birds, birds that received saline injections, or a lower dose of ACTH (1 IU per kg body mass). Variation in overall fecal glucocorticoid metabolite levels may have been influenced by season and the length of time birds were held in captivity. Noninvasive fecal glucocorticoid metabolite analyses, in combination with demographic information, may have considerable utility for monitoring the effects of natural and anthropogenic disturbances on Mourning Dove populations. Uso de Glucocorticoides Fecales Para Evaluar el Estrés en Zenaida macroura Resumen. Las evaluaciones de glucocorticoides fecales representan un medio no invasor potencialmente útil para estudiar las respuestas fisiológicas de los animales silvestres ante agentes causantes de estrés. El objetivo de nuestro estudio fue validar un método para medir metabolitos glucocorticoides en heces de palomas Zenaida macroura. Validamos el método mediante procedimientos estándar (e.g., paralelismo, recuperación de corticosterona exógena) para demostrar que éste mide con exactitud y precisión los metabolitos glucocorticoides en extractos fecales de Z. macroura. Realizamos experimentos de desafío con adrenocorticotropina (ACTH) para validar la habilidad que tenía el método para determinar cambios biológicamente importantes en los glucocorticoides fecales. Los niveles de glucocorticoides fecales aumentaron de forma significativa aproximadamente 2–3 hr después de la administración de ACTH a 50 IU por kg de peso corporal a palomas silvestres mantenidas en cautiverio. En contraste, los metabolitos glucocorticoides fecales no aumentaron en aves control, ni en aves que recibieron inyecciones salinas o una menor dosis de ACTH (1 IU por kg de peso corporal). La variación en los niveles generales de metabolitos glucocorticoides fecales podría haber sido influenciada por la estación y la longitud del período de tiempo en que las aves fueron mantenidas en cautiverio. Los análisis no invasores de metabolitos glucocorticoides, en combinación con información demográfica, podrían ser de considerable utilidad para monitorear los efectos de los disturbios naturales y antropogénicos sobre las poblaciones de Z. macroura.

Mourning Dove (Zenaida macroura)

1994 ◽  
Author(s):  
R. E. Mirarchi ◽  
T. S. Baskett
Keyword(s):  
Mourning Dove ◽  
Zenaida Macroura

A preliminary survey for avian pathogens in Columbiform birds on Socorro Island, Mexico.

2011 ◽  
Vol 17 (1) ◽  
pp. 11 ◽  
Author(s):  
Saturnino Yanga ◽  
Juan E Martinez-Gomez ◽  
Ravinder N M Sehgal ◽  
Patricia Escalante ◽  
Frank Carlos Camacho ◽  
...  
Keyword(s):  
Dna Amplification ◽  
Cloacal Swab ◽  
Mourning Dove ◽  
Tissue Samples ◽  
Zenaida Macroura ◽  
Trichomonas Gallinae ◽  
Socorro Island ◽  
Disease Risks ◽  
Mourning Doves ◽  
Avian Pox

To assess the potential disease risks posed by resident Columbiformes to the reintroduction of the Socorro Dove Zenaida graysoni to Socorro Island, Mexico, the endemic Socorro Ground Dove Columbina passerina socorrensis and the recently arrived Mourning Dove Zenaida macroura, were screened for ecto- and endoparsites, haemosporidia, Trichomonas gallinae, Chlamydophila psittaci and avian pox. All of the Mourning Doves and Socorro Ground Doves sampled appeared healthy upon capture. We detected Haemoproteus spp. in 88% of Mourning Dove and 30% of Socorro Ground Dove samples using microscopy. Two polymerase chain reaction (PCR) DNA amplification methods detected either Haemoproteus spp. or Plasmodium spp. Pooling results from both tests yielded positives in 100% of the Mourning Doves and 52% of the Socorro Ground Doves. A nested PCR detected Leucocytozoon spp. in 94% of the Mourning Doves and 61% of the Socorro Ground Doves sampled. Thus, at least two genera of haemosporidia are present in columbids of Socorro Island. Microscopy for T. gallinae yielded positives in 33% of Mourning Dove and 30% of Socorro Ground Dove samples. C. psittaci was not detected using PCR on either cloacal swab samples or tissue samples from tested Mourning Doves or Socorro Ground Doves. Necropsies revealed neither lesions indicative of the wet form of avian pox, nor internal lesions associated with trichomoniasis. These results suggest that Socorro Doves selected for reintroduction should be screened carefully to evaluate potential immunological challenges by native haemosporidians and to avoid introduction of other diseases apparently absent from native Columbiformes on Socorro Island.

Seasonal Dynamics of Mourning Dove (Zenaida macroura) Body Mass and Primary Molt

2015 ◽  
Vol 127 (4) ◽  
pp. 630-638 ◽  
Author(s):  
Clait E. Braun ◽  
Roy E. Tomlinson ◽  
Gregory T. Wann
Keyword(s):  
Body Mass ◽  
Seasonal Dynamics ◽  
Mourning Dove ◽  
Zenaida Macroura

scholarly journals Revisiting Effects of Hunting on Mourning Dove Nest Survival

2019 ◽  
Vol 10 (1) ◽  
pp. 102-110
Author(s):  
John H. Schulz ◽  
Xiaoming Gao ◽  
Peng Shao ◽  
Zhuoqiong He ◽  
Joshua J. Millspaugh
Keyword(s):  
Nest Survival ◽  
Survival Rates ◽  
Mourning Dove ◽  
Hunting Season ◽  
Basic Premise ◽  
Survival Estimate ◽  
Zenaida Macroura ◽  
Bayesian Hierarchical ◽  
Credible Intervals ◽  
Daily Nest Survival

Abstract We reconstructed a historical dataset from a national mourning dove Zenaida macroura nesting study evaluating the effects of hunting on nesting birds during the September portion of the hunting season using Bayesian hierarchical models; the reconstructed dataset contained 707 nests. The original nest survival estimate of 96.3% (nonhunted zones) fell within the range of our average daily nest survival rates and credible intervals (CI) of 97.2% (95% CI: 96.2–98.0%) for nonhunted, but the original nest survival estimate of 95.5% (hunted zones) was lower than our average daily nest survival rates of 96.9% (95% CI: 96.1–97.7%) for hunted zones. Similarly, overall nest survival for areas and years combined for hunted zones was 44.3% (95% CI: 35.3%, 53.9%) and 48.1% (95% CI: 36.9%, 59.8%) for nonhunted zones. The most parsimonious model contained the primary covariates of hunted or nonhunted status (hunted or paired hunted) or paired hunted or nonhunted nest searching plot (zone), and year. We observed lower nest survival for the hunted or delayed-hunt zones compared to the zones with hunted or nonhunted season structure. Regional differences may be explained by states with early and late hunting seasons separated by ≥ 21 d compared to other pairs where hunted and nonhunted areas occurred simultaneously. Our reanalysis provides managers additional assurance that the basic premise of limited or no effect of harvest on mourning dove populations is still valid but continued monitoring of population status is warranted.

Sex ratios of hatchling Mourning Doves

1987 ◽  
Vol 65 (4) ◽  
pp. 871-874 ◽  
Author(s):  
Suzanne R. Edmunds ◽  
C. Davison Ankney
Keyword(s):  
Sex Ratio ◽  
Breeding Season ◽  
Seasonal Changes ◽  
Egg Size ◽  
Mourning Dove ◽  
Seasonal Effect ◽  
Zenaida Macroura ◽  
Family Types ◽  
Offspring Sex ◽  
Mourning Doves

The sex of 306 Mourning Dove (Zenaida macroura) chicks from 153 two-egg clutches laid during March–August 1984 was determined by gonadal inspection. Sex of offspring was unrelated to egg sequence over the entire breeding season. There was, however, a seasonal effect on the sex versus egg sequence pattern, particularly in broods with both sexes: during the middle of the breeding season males predominated in first eggs and females in second eggs but this pattern was reversed late in the season. All other comparisons, i.e., overall sex ratio, seasonal changes in sex ratio, binomial distribution of family types, and the relation between egg size and offspring sex, were nonsignificant.

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