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Edgar Bernat-Ponce

Nov 21, 2018 • 6 tweets • 11 min read • Read on X

1 #BOU18TC The #HouseSparrow disappears from rural and urban areas of #Europe. Cities like Prague, London (#RedList in 2002) & Valencia have experienced #urban #declines in their populations above 50%. What is happening in urban areas? #ornithology #urbanecology #urbanbirds

2 #BOU18TC Various potential causes for the urban #decline have been suggested. Our aim was to study if new #park policies linked to #urbanization and #reurbanization (new concept) could be a key factor for the urban decline of the #species. #ornithology #urbanecology #urbanbirds

3 #BOU18TC We studied the abundance of #housesparrows (point counts) in 32 #urbanparks of 4 towns of eastern #Spain. 10 of them were modified (new park policies) during the 4 studied seasons 2015-2018. We compared means of (r) and abundance between years and kinds of parks.

4 #BOU18TC Our preliminary results showed that the #reurbanization of #parks increased the decline rate of #HouseSparrow populations at modified parks. Before #modifications both growth rates were similar. #ornithology #urbanecology #urbanbirds

5 #BOU18TC Mean abundances of HouseSparrows/PC were similar between parks before #reurbanization (2015). After reurbanization, modified #parks had less #HouseSparrows than non-modified parks (2018). #ornithology #urbanecology #urbanbirds

6 #BOU18TC New park policies and #reurbanization could boost the rate of decline of #HouseSparrows in urban areas.
Full paper in preparation. More about our project:
researchgate.net/profile/Edgar_…
tandfonline.com/doi/full/10.10…
#ornithology #urbanecology

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More from @edberpon

Edgar Bernat-Ponce

@edberpon

Nov 9, 2021

@bou

1/6 #BOUasm21 #BREAK3 BOOMS from #fireworks are fun for people… But, what are their effects on #urban birds🐦? Noise has been proven to harm urban wildlife but recreational #noise is a source of pollution that has been poorly studied. #ornithology @bou
doi.org/10.1016/j.envp…

2/6 #BOUasm21 #BREAK3 Moors and Christians #festivals are very noisy recreational activities with the use of fireworks and powder guns. These festivals raise a potential #conflict between festivals participants and #bird conservation. Did this noise affect birds breeding success?

3/6 #BOUasm21 #BREAK3 5 pairs of cities in E Spain were studied to reveal if somehow these noisy festivals were affecting the breeding success of the #HouseSparrow. Two visits per year to explore if the effects were differential on eggs and nestlings🐥🐣.

Read 6 tweets

Edgar Bernat-Ponce

@edberpon

Nov 10, 2019

1. ¡Hola! Para #Desgrana6 os voy a contar una breve historia sobre un pequeño #pájaro marrón que todos habéis visto en vuestra ciudad. Una pista: anda dando pequeños saltos entre los coches y se come los restos de pan que caen de las mesas de las terrazas. ¿Lo sabes? #HilosDC6

2.¡En efecto! Seguro que estabas pensando en el #gorrióncomún (Passer domesticus para los científicos). El gorrión es una de las aves que nos resultan más familiares, tal y como dice su nombre. Pero no todos saben que está desapareciendo de nuestro país ¡y de Europa entera!

3. Seguro que has escuchado a la gente mayor de tu pueblo o ciudad comentar que ya no quedan #gorriones. Gracias a @SEO/BirdLife sabemos que España ha perdido 30 millones de gorriones en los últimos 10 años. ¿No te parece que son demasiados en muy poco tiempo? #AvesDeBarrio