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FIGURES 11–12 in Chewing lice from the white-rumped vulture in Nepal, with description of a new species of Aegypoecus

FIGURES 11–12. Aegypoecus bengalensis, habitus: 11, ventral view of male. 12, dorsal view of female.

FIGURES 4–6 in Chewing lice from the white-rumped vulture in Nepal, with description of a new species of Aegypoecus

FIGURES 4–6. Aegypoecus bengalensis, male: 4, dorsal and ventral views of head. 5, dorsal view of thorax. 6, genitalia.

FIGURES 2–3 in Chewing lice from the white-rumped vulture in Nepal, with description of a new species of Aegypoecus

FIGURES 2–3. Aegypoecus bengalensis, habitus: 2, dorsal and ventral views of male. 3, dorsal and ventral views of female.

FIGURES 15–16 in Chewing lice from the white-rumped vulture in Nepal, with description of a new species of Aegypoecus

FIGURES 15–16. Aegypoecus bengalensis, female: 15, pterothoracic sternal plate. 16, dorsal view of terminal segments.

FIGURES 19–20 in Chewing lice from the white-rumped vulture in Nepal, with description of a new species of Aegypoecus

FIGURES 19–20. Cuculiphilus gypsis: 19, prosternal plate of female. 20, ventral view of terminal segments and genitalia.

FIGURES 7–10 in Chewing lice from the white-rumped vulture in Nepal, with description of a new species of Aegypoecus

FIGURES 7–10. Aegypoecus bengalensis, female: 7, dorsal anterior plate. 8, pterothoracic sternal plate. 9, dorsal view of terminal segments. 10, ventral view of terminal segments.

Figure 2 in Population size, breeding rates and conservation status of Eurasian black vulture in the Dadia National Park, Thrace, NE Greece

Figure 2. The trend of breeding success (Nfled/Ninc ×100) of the black vulture population for the period 1994–2005.

Figure 4 in Range use of a Eurasian black vulture (Aegypius monachus) population in the Dadia-Lefkimi-Soufli National Park and the adjacent areas, Thrace, NE Greece

Figure 4. Overall area occupied by the radio-tagged Eurasian Black Vultures (Aegypius monachus) during the annual life circle (breeding season, non-breeding season) as it was determined by superimposing the individual home ranges. Hatched line indicates 100% MCPs estimates; solid line indicates 95% MCPs; graduated shaded polygons show the utilization distributions for fixed FKM.

Figure 2 in Range use of a Eurasian black vulture (Aegypius monachus) population in the Dadia-Lefkimi-Soufli National Park and the adjacent areas, Thrace, NE Greece

Figure 2. Home range estimates for the radio-tagged Eurasian Black Vultures (Aegypius monachus) during the breeding (a, b) and non-breeding (c, d) season. Lines indicate the 95% Fixed kernel (FKM) for the deferent individuals. IND105, female breeder; IND106, male breeder; IND107, female breeder; IND102, immature male; IND103, immature female; IND104, immature female; IND108, juvenile male; IND109 juvenile male; IND110 juvenile female; IND111 juvenile male.

Figure 3 in Range use of a Eurasian black vulture (Aegypius monachus) population in the Dadia-Lefkimi-Soufli National Park and the adjacent areas, Thrace, NE Greece

Figure 3. Core area estimates for the radio-tagged Eurasian Black Vultures (Aegypius monachus) during the breeding (a, b) and non-breeding (c, d) season. Lines indicate the Incremental Cluster Polygons (ICP) in different percent inclusion of locations for the deferent individuals. IND105, female breeder; IND106, male breeder; IND107, female breeder; IND102, immature male; IND103, immature female; IND104, immature female; IND108, juvenile male; IND109 juvenile male; IND110 juvenile female; IND111 juvenile male.

Figure 1 in Range use of a Eurasian black vulture (Aegypius monachus) population in the Dadia-Lefkimi-Soufli National Park and the adjacent areas, Thrace, NE Greece

Figure 1. Home range estimates for the radio-tagged Eurasian Black Vultures (Aegypius monachus) during the breeding (a, b) and non-breeding (c, d) season. Lines indicate the 95% Minimum Convex Polygon (MCP) for the deferent individuals. IND105, female breeder; IND106, male breeder; IND107, female breeder; IND102, immature male; IND103, immature female; IND104, immature female; IND108, juvenile male; IND109 juvenile male; IND110 juvenile female; IND111 juvenile male.

Figure 1 in Population size, breeding rates and conservation status of Eurasian black vulture in the Dadia National Park, Thrace, NE Greece

Figure 1. Maximum (Nmax) annual number of individuals and breeding pairs (Ninc) of the black vulture population in the Dadia NP for the period 1987–2005.

opencc-zeroSep 2021View details →

We are what we eat, plus some per mill: Using stable isotopes to estimate diet composition in Gyps vultures over space and time

1. Dietary studies in birds of prey involve direct observation and examination of food remains at resting and nesting sites. Although these methods accurately identify diet in raptors, they are time consuming, resource intensive and associated with biases that stem from the feeding ecology of raptors like Gyps vultures (Gyps africanus and Gyps rueppelli). Our study set out to estimate diet composition in Gyps vultures informed by stable isotopes that provide a good representation of assimilated diet from carrion resources in local systems. 2. We hypothesized that differences in Gyps vulture diet composition is a function of sampling location, and that these vultures move between Serengeti National Park and Selous Game Reserve to forage. We also, theorized that grazing ungulates are the principal items in Gyps vulture diet. 3. Through a combination of linear and Bayesian models, diet derived from d13C in Gyps vultures consisted of grazing herbivores across study areas, with those in Serengeti National Park consuming higher proportions of grazing herbivores (> 87%). d13C differences in vulture feather subsets per site did not indicate vulture diet change, and in combination with blood d13C, vultures fed largely on grazers for ~159 days before they were sampled in both sites. Similarly, d15N values implied that Gyps vultures fed largely on herbivores across space and time. d34S ratios separated prey source for vultures between the two sites. d34S variation in vultures across sites resulted from differences in baseline (plant) d34S values, though it is not possible to match d34S to specific locations. 4. Our findings highlight the relevance of repeated sampling that considers tissues with varying isotopic turnover and emerging Bayesian techniques for dietary studies using stable isotopes. Findings also suggested limited vulture movement between the two local systems. However, more sampling coupled with telemetry is required to fully comprehend this observation and its implications to Gyps vulture ecology and conservation.

opencc-by-4.0Dec 2022View details →

Large-scale movement patterns in a social vulture are influenced by seasonality, sex, and breeding region

Dataset (in RData format) and Scripts corresponding to each of the analyses carried out for the manuscript entitled "Large-scale movement patterns in a social vulture are influenced by seasonality, sex, and breeding region".

opencc-by-4.0Jun 2023View details →

A long-lasting, distant journey of a male griffon vulture informs on the success of its mate solo parental investment

CSV dataset

opencc-zeroJul 2023View details →

Turkey Vulture survival is reduced in areas of greater road density

The demography of, and factors that influence these metrics, are largely unknown for most vultures in the Americas. Survivorship of Turkey Vultures (Cathartes aura) may be influenced by landscape heterogeneity and human disturbance. We quantified the effects of landscape composition (Shannon's diversity index) and configuration (contagion, edge density, and largest patch index), and human disturbance (road density) on the annual and seasonal survival probabilities of the 3 North American breeding populations (western, central, and eastern) of Turkey Vultures that spend the nonbreeding season in the southeastern portion of the Nearctic and the northern Neotropics during a 17-yr period. We used Cox's proportional hazards models with time-varying covariates to estimate spatial and temporal changes in survival rates of adult Turkey Vultures. Road density, but not landscape composition or configuration, influenced survival rates in space and time. Overall annual survival averaged 0.87 (95% CI: 0.74–0.98). Mortality risk was low in western and central populations (hazard ratio &lt; 1) but was 3.7 times greater for vultures in the eastern population. Survival during the breeding (0.97, 95% CI: 0.96–0.98) and outbound migration (1.0, 95% CI: 1–1) seasons was significantly higher than the other seasons. Average survival tended to be higher for nonbreeding (0.81, 95% CI: 0.71–0.88) compared to return migration (0.69, 95% CI: 0.56–0.81) seasons. Risk of mortality for all vulture populations increased with road density, and this was greater during the nonbreeding and return migration seasons. The spatial variation in road density across the Americas may generate a network of ecological traps for Turkey Vultures induced to stop in areas of greater road-kill abundance. Road-killed animals acting as an attractant for vultures can increase the occurrence of vulture-vehicle collisions and potentially aggravate human-wildlife conflicts. Further analyses are needed to address survivorship and mortality factors for young birds. Our results may help the implementation of specific mitigation efforts to reduce human–vulture conflicts and vulture mortality. For instance, concentrating efforts to remove road-killed animals in areas where road density is highest can likely reduce vulture–vehicle collisions and associated mortalities of these birds.

opencc-by-4.0Jul 2023View details →

Vulture and NSAID

By consuming carcasses, preventing the transmission of illness, and maintaining a healthy environment, vultures play a significant part in the ecology. They are considered obligate scavengers with a very minimal likelihood of spreading disease. The number of vultures has drastically decreased in India since the middle of the 1990s, with three resident Gyps species (White-rumped vulture, Long-billed vulture, and Slender-billed vulture) experiencing a loss of over 97%. Diclofenac was the main culprit to decline in the population of vultures. Diclofenac is a nonsteroidal anti-inflammatory Drug (NSAID) that reduces inflammation and pain in a few different medical diseases. Diclofenac was responsible for kidney failure and visceral gout. The Indian government outlawed the administration of diclofenac in veterinary medicine in May 2006. Unfortunately, the restriction was not extended far enough, and sick animals were treated with human diclofenac. One problem is that alternative medications like meloxicam, which have been examined for vulture safety, are substantially more expensive than the human equivalent of diclofenac.

publicJul 2019View details →

Data from: Nesting success and nest-site selection of white-rumped vultures (Gyps bengalensis) in western Maharashtra, India

Open the record for dataset details and reuse information.

publicSep 2021View details →

We are what we eat, plus some per mill: Using stable isotopes to estimate diet composition in Gyps vultures over space and time

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