BIRD MORTALITY DUE TO AIRCRAFT CLASH AT THE AIRPORT OF JAEN, CAJAMARCA, PERU

AbstractExpansion of urbanization and infrastructure associated with human activities has numerous impacts on wildlife including causing wildlife-structure collisions. Collisions with building windows represent a top bird mortality source, but a lack of research into timing of these collisions hampers efforts to predict them and mitigate effects on avian populations. In Stillwater, Oklahoma, USA, we investigated patterns of bird-window collisions at multiple temporal scales, from within-day to monthly and seasonal variation. We found that collisions peaked during overnight and early morning hours, a pattern that was consistent across seasons. Further, temporal variation in fatal collisions was explained by an interaction between season and avian residency status. This interaction illustrated the expected pattern that more migrant individuals than residents collided in fall, but we also documented unexpected patterns. For example, the highest monthly total of collisions occurred in spring migration during May. We also found similarly high numbers of resident and migrant collisions in spring, and a roughly similar amount of migrant mortality in spring and fall migration. These findings, which provide unprecedented quantitative information regarding temporal variation in bird-window collisions, have important implications for understanding mechanisms by which birds collide and improving timing of measures to reduce this major bird mortality source.

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Suspected wild bird mortality in Britain due to stormy weather and hailstones

Veterinary Record ◽

10.1136/vr.160.25.884-a ◽

2007 ◽

Vol 160 (25) ◽

pp. 884-884 ◽

Cited By ~ 1

Author(s):

J. P. Duff

Keyword(s):

Wild Bird ◽

Stormy Weather ◽

Bird Mortality

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Factors affecting egg production and layer bird mortality in private poultry farms in the subhumid zone of Nigeria

Animal Science Journal ◽

10.1046/j.1344-3941.2003.00111.x ◽

2003 ◽

Vol 74 (3) ◽

pp. 239-242

Author(s):

Aduli Enoch Othniel MALAU-ADULI ◽

Gideon Shaibu BAWA ◽

Kayode JOEL

Keyword(s):

Egg Production ◽

Factors Affecting ◽

Poultry Farms ◽

Bird Mortality

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Sea bird mortality at Cabo San Lucas, Mexico: Evidence that toxic diatom blooms are spreading

Toxicon ◽

10.1016/s0041-0101(96)00140-7 ◽

1997 ◽

Vol 35 (3) ◽

pp. 447-453 ◽

Cited By ~ 101

Author(s):

A.Sierra Beltrán ◽

M. Palafox-Uribe ◽

J. Grajales-Montiel ◽

A. Cruz-Villacorta ◽

J.L. Ochoa

Keyword(s):

Bird Mortality ◽

Diatom Blooms

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Camouflaging of seeds treated with pesticides mitigates the mortality of wild birds in wheat and rice crops

Scientia Agricola ◽

10.1590/s0103-90162010000200008 ◽

2010 ◽

Vol 67 (2) ◽

pp. 176-182 ◽

Cited By ~ 6

Author(s):

Alexandre de Almeida ◽

Hilton Thadeu Zarate do Couto ◽

Álvaro Fernando de Almeida

Keyword(s):

Rhodamine B ◽

Apparent Movement ◽

Sao Paulo ◽

Wild Birds ◽

São Paulo ◽

Seed Treatments ◽

Legal Requirement ◽

Bird Mortality ◽

Planting System

Seeds used to plant wheat, corn and rice crops in Brazil are treated with the insecticide carbofuran associated with the dye rhodamine B, attracting granivorous birds and causing mortality during sowing. The objective of this study was to evaluate if using camouflaged seeds can minimize mortality caused by the ingestion of seeds with carbofuran. Alternatives for reducing mortality, such as using carbofuran without rhodamine B or replacing carbofuran by carbosulfan, were compared. Three experiments were carried out in regions of known bird mortality in the states of Paraná and São Paulo, Brazil, using conventional sowing over plowed soil in the traditional planting system, 15,896 kg of seeds in 111.46 ha. Bird carcasses were collected and dissected to unveil which poisoned seed treatments had caused birds' deaths. The mortality mounted to 296 birds of 11 species. Eared doves were the most numerous casualties (263). There was significant correlation between mortality and number of consumed seeds. The consumption of camouflaged seeds was lower than that of commercial seeds treated with rhodamine B. The mortality caused by seeds with both rhodamine B and carbofuran was higher than mortality caused by seeds camouflaged only with carbofuran. The replacement of carbofuran with carbosulfan also seemingly reduced mortality, but carbosulfan mortality might have been underestimated as a result of the apparent movement of affected birds after exposure. Seeds treated with carbofuran and rhodamine B and without any dye, were attractive. Because legal requirement for seeds treated with pesticides to be differentiated by dying, the substitution of rhodamine B by camouflaging must be encouraged.

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Camouflage of Seeds, a Control Method of the Bird Mortality in Grain Crops

Pesticides in the Modern World - Risks and Benefits ◽

10.5772/17226 ◽

2011 ◽

Author(s):

Alexandre de ◽

Hilton Thadeu Zarate do Couto ◽

Alvaro Fernando de Almei

Keyword(s):

Control Method ◽

Grain Crops ◽

Bird Mortality

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Acute Intoxication as a Cause of Wild Bird Mortality in the Netherlands from 1975–1989

Archives of Toxicology - Recent Developments in Toxicology: Trends, Methods and Problems ◽

10.1007/978-3-642-74936-0_67 ◽

1991 ◽

pp. 311-315

Author(s):

A. J. Baars ◽

P. E. F. Zoun ◽

TH. J. Spierenburg ◽

Th. Smit

Keyword(s):

The Netherlands ◽

Wild Bird ◽

Acute Intoxication ◽

Bird Mortality

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Effects of transport distance and the season of the year on death rates among hens and roosters in transport to poultry processing plants in the Czech Republic in the period from 1997 to 2004

Veterinární Medicína ◽

10.17221/1881-vetmed ◽

2008 ◽

Vol 52 (No. 6) ◽

pp. 262-266 ◽

Cited By ~ 18

Author(s):

E. Voslarova ◽

B. Janackova B ◽

F. Vitula ◽

A. Kozak ◽

V. Vecerek

Keyword(s):

Czech Republic ◽

Total Mortality ◽

Mortality Rates ◽

Death Rates ◽

The Czech Republic ◽

Transport Distance ◽

Processing Plants ◽

Poultry Processing ◽

Bird Mortality ◽

Poor Welfare

Poor welfare is the cause of high mortality among hens and roosters transported to poultry processing plants. In the Czech Republic, death rates among hens and roosters in transport to poultry slaughter plants were monitored between 1997 and 2004, and their total mortality rate was in the 0.925% ± 0.479% range. Death rates among hens and roosters were influenced by the transport distance to poultry processing plants. The percentage of dead birds increased from 0.592% ± 0.575% at transport distances up to 50 km to 1.638% ± 0.952% at transport distances up to 300 km. The bird mortality was also influenced by the season of the year. Higher mortality rates were ascertained during the cold months of the year, specifically in October through to April.

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Bird mortality on medium-voltage power lines in the Czech Republic

Raptor Journal ◽

10.2478/srj-2019-0007 ◽

2019 ◽

Vol 13 (1) ◽

pp. 27-44

Author(s):

Vlasta Škorpíková ◽

Václav Hlaváč ◽

Milan Křápek

Keyword(s):

Czech Republic ◽

Point Of View ◽

The Other ◽

Power Lines ◽

Mitigation Measures ◽

Birds Of Prey ◽

The Czech Republic ◽

Medium Voltage ◽

Bird Mortality ◽

Straight Lines

Abstract In 2015–2016, 6,429 km medium-voltage power lines with 76,430 pylons were checked for bird mortality in the Czech Republic. 1,326 bird victims of power lines were found, 156 of which died after collisions, and 1,170 birds were electrocuted. They belonged to 60 species from 12 orders, and birds of prey made up almost half of all victims. Steel pylons bearing several cross-arms including upper and crosswise jumpers were identified as most dangerous from the electrocution point of view. On the other hand, pylons in straight lines with Pařát cross-arms (triangular arrangement of conductors without any horizontal bar) were among the least dangerous, and when they had a simple perch fitted below the cross-arm, no mortality was recorded. But these pylons are new in practice and despite becoming widely used recently, they form less than one tenth of all pylons in the Czech Republic. On other pylons various types of mitigation measures have been installed. Commonly used plastic covers and plastic strips have proved to be especially effective, but only in cases when they are undamaged and correctly installed.

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