Cães domésticos predadores de ninho de batuíra bicuda (Charadrius wilsonia) no nordeste brasileiro

Diniz, Cristovam Guerreiro; Magalhães, Nara Gyzely de Morais; Diniz, Daniel Guerreiro; Pereira, Patrick Douglas Corrêa; Paulo, Dario Carvalho; Rendeiro, Fábio; Sherry, David F.

doi:10.7594/revbio.16.01.04

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…One possibility is the presence on the island of domestic animals, such as cats and dogs, associated with the many local commercial establishments. Dogs taken to beaches by tourists or fishermen are potential threats to breeding C. wilsonia (Diniz et al 2016). Natural predators include Caracara plancus, with up to four individuals being observed foraging on Coroa do Avião island during visits, although the accidental destruction of the nest by fishers or tourists, or their dogs, cannot be ruled out completely.…”

Section: Discussionmentioning

confidence: 99%

Records of breeding in Wilson’s Plover Charadrius wilsonia with new localities for Brazil

et al. 2020

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Abstract Wilson’s Plover, Charadrius wilsonia, is widely distributed in coastal areas of the Americas. This report presents the first record of breeding in this species on Coroa do Avião Island, on the coast of Pernambuco, and in the estuary of the Cardoso and Camurupim rivers, on the coast of Piauí, in northeastern Brazil, extending the known area of reproduction of this species in this region. One breeding pair was observed on October 29th 2014 on Coroa do Avião Island, and a second pair was recorded on April 6th 2016 in the Cardoso/Camurupim estuary on the Piauí coast. Both the male and the female contributed to the incubation of the eggs. The nest on Coroa do Avião island was camouflaged by the local vegetation, but despite this, the eggs were attacked by a predator. Possible predators observed on the island included Caracara plancus and domestic cats and dogs.

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Section: Discussionmentioning

confidence: 99%

Records of breeding in Wilson’s Plover Charadrius wilsonia with new localities for Brazil

et al. 2020

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“…Keratometry is used for planning refractive and cataract surgery, diagnosing corneal abnormalities, and making contact lens. [1][2][3][4][5][6][7] In veterinary ophthalmology, corneal pachymetry and keratometry are, for now, used only experimentally.…”

Section: Introductionmentioning

confidence: 99%

Simulated keratometry and central corneal thickness measured in cats by autokeratometer, ultrasonic pachymeter, and Galilei G6™

Ramos

Brandão

Arce

et al. 2022

Veterinary Ophthalmology

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Objective:The aims of this study were to compare the central corneal thickness (CCT) measured by an ultrasonic pachymeter (SP-100, Tomey, Japão) versus the Galilei G6™ (Ziemer Ophthalmics System AG, Port, Switzerland) and to compare the simulated keratometry (SimK) measured by an autokeratometer (KM 500 Nidek) versus the Galilei G6™.Animal studied: Eighteen mixed-breed cats, 10 males, and eight females, aged between 18 and 48 months, were evaluated (n = 36 eyes). Procedure(S):The cats were manually restrained using a blanket. The operator held the autokeratometer close to the eye and measured the SimK. Next, one anesthetic eye drop was applied; the operator lightly touched the corneal using the ultrasound pachymeter and measured the CCT. At another moment, the cats were sedated using meperidine and xylazine and then evaluated using the Galilei.Student's t-test was employed to perform the statistical analyzes.Results: Considering the CCT, the ultrasound pachymeter provided mean ± SD of 623.03 ± 48.17 μm and the Galilei 617.34 ± 53.38 μm. The autokeratometer produced a SimK of 38.20 ± 0.84D (8.84 ± 0.20 mm) and the Galilei 38.37 ± 0.83D

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Four‐legged foes: dogs disturb nesting plovers more than people do on tourist beaches

Gómez‐Serrano

2020

Ibis

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Recreational activities in nature have increased considerably in recent decades. Human disturbance may trigger similar trade‐offs in birds that the natural risk of predation generates on productivity through parental investment decisions. To estimate how the impact of human presence affects breeding birds on Mediterranean beaches, the behaviour of incubating Kentish Plovers Charadrius alexandrinus was studied in relation to the approach of people, vehicles and dogs. Observational data were collected and control experiments were performed with a standardized stimulus. The response variability of birds in the decision to flush from the nest was studied depending on the type of beach user, the location of the disturbance event and thermal stress. Walkers, when accompanied by dogs, flushed plovers 93.8% of the time when walking through dunes and 80.0% of the time when walking on paths, whereas pedestrians alone flushed plovers 47.6% of the time when in dunes and only 12.9% of the time when on paths. Lone dogs triggered a flushing response 100% of the time when they roamed the dunes and 50% on the shore. The number of users in each disturbance event did not affect the flushing behaviour. Nest return times were shorter on disturbed beaches, suggesting habituation to the human disturbance stimulus. The ambient temperature for the nests in which plovers flushed was lower and nest return time decreased proportionally with ambient temperature, both suggesting that habituation to the human disturbance stimulus encourages relaxation of the trade‐off between escape behaviour to avoid predation risk and the effects of thermal stress on unattended eggs. Females flushed more frequently (57.1%) than males (32.0%), suggesting that they may perceive risk differently. Establishing buffers between nesting areas and people may help birds habituate to the predictable and non‐lethal stimulus of human presence, facilitating coexistence between conservation and recreation.

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Cães domésticos predadores de ninho de batuíra bicuda (Charadrius wilsonia) no nordeste brasileiro

Cited by 3 publications

References 5 publications

Records of breeding in Wilson’s Plover Charadrius wilsonia with new localities for Brazil

Records of breeding in Wilson’s Plover Charadrius wilsonia with new localities for Brazil

Simulated keratometry and central corneal thickness measured in cats by autokeratometer, ultrasonic pachymeter, and Galilei G6™

Four‐legged foes: dogs disturb nesting plovers more than people do on tourist beaches

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