20014003Athene cunicularia boliviana

4/13/2015

biological_leaflet_no._11_1939_kelso.pdf
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Este registro se basa en un/una:

x Observación en el campo
Nombre de la especie : Athene cunicularia boliviana
No. de individuos : Muchos a lo largo de los años
Lugar: Reserva de la Biosphera del Manu
Distrito/Provincia/Departamento Departamentes Cusco y Madre de Dios
Coordinadas (GPS, Google Earth)
Altitud en msnm    299-650msnm
Hábitat   Pasturas, Orillas de los rios
Fecha y hora de la primera observación    Agosto de 2004 medio dia
Fecha y hora de la última observación: 10 de Setiembre de 2013
Circunstancias de la observación
Distancia a Ave: Variable desde 60 metRos de distancia hasta 10 metros
Duración de la observación (min/hrs)        la ultima observación fue de media hora
Ayuda óptica usadas (binoculares, etc.) Binoculares, telescopio.
Clima (soleado, lluvioso, nublado, etc.)       Soleado
Condiciones de luz : Buenas
El ave fue observado en árbol xabajo
¿Usted descubrió el ave? xSi
¿Usted identificó el ave? xSi
Si no, ¿Quién lo hizo?
¿La identificación fue hecha en el lugar de observación?                                    xSi
¿Ha tenido experiencia previa con la especie?                                          xSi
¿Ha tenido experiencia con especies que son difíciles de identificar?    xSi
¿Se excluyen las otras especies parecidas?                                                xSi

Documentación
Al ave/las aves se le(s) :
¿Fotografió?                                                                      xSi                                    No
¿Grabó?                                                                             Si                                    No
¿Filmo?                                                                              xSi                                    No
¿La foto/sonido/video fue publicada en Internet? xSi                            No
Si es así indique por favor la dirección del sitio: http://www.amazonialodge.com/BurrowingOwl.jpg   ;      https://groups.yahoo.com/neo/groups/Birdingperu/conversations/messages/2275

Si es posible, incluya la documentación foto/sonido/video en el correo electrónico. El sonido registrado puede tambien ser enviado a www.xeno-canto.org y las fotografías pueden ser enviadas a www.vireo.acnatsci.org   o vía www.ebird.org/content/peru

Observador/reportero
Nombre                                                       Virgilio Yábar Calderón
Dirección                                                      Calle matará 334
Pais de residencia                                             Peru
Correo electrónico                                       [email protected]
Teléfono                                                           084231370
Otros observadores
Fecha de envío                                             26 de Junio del 2014
Descripción
La Primera observación en Agosto del 2004 constituye el primer registro documentado par la especie Athene cunicularia para la Amazonia del Perú en ese momento no tenía idea acerca de la subespecie de la que que se trataba. Fue una observación distante y se obtuvo una foto suficiente para identificar a la especie, después a lo largo de los años pude observar muchos individuos siendo una observación remarcable la de Setiembre del 2009 cuatro Kilometros rio debajo de Boca Manu 12°16’Sur 70°53’Oeste 299 msnm muy lejos de las otras observaciones.
El año pasado obsereve tres diferentes ejemplares cerca de Amazonia Lodge y dos mas en la localidad de Patria. Patria (12°56`Sur 71°24’Oeste) está en el Km 175 de la carretera Cusco–Shintuya y es parte de la Reserva de la Biosfera del Manu. El habitat de patria está compuesto por campos de agricultura muchas palmeras de Aguage(Mauritia flexuosa) tambien se observa pasturas y pantanos bosque secundario la temperatura promedio es de 22°C to 32°C si pasa un fenómeno de inversión térmica (friaje) la temperatura es de 10°C. En general el clima es húmedo y lluvioso.
El 10 Setiembre del 2013 observe dos Lechuzas Terrestres Athene cunicularia boliviana estaban en un campo agricola a un costado de la Carretera (Patria) estaban muy cerca y pude documentarlos mediante fotos .
Mostraban ojos amarillos; el pico de color gris. Supersiliares(cejas) color blancusco , cabeza de color marron con pequeños puntos color blancusco anteado al igual que el Dorzo(espalda), el pecho y abdomen color del Ante blancusco con muchas barras marrones.

Agosto del 2004 Reserva de la Biosfera del Manu
Patria Setiembre del 2013
Patria Setiembre del 2013
Patria Setiembre del 2013
¿Ha tenido experiencia previa con la especie?                                          xSi
¿Ha tenido experiencia con especies que son difíciles de identificar?    xSi
¿Se excluyen las otras especies parecidas?                                                xSi
Si la respuesta es sí – por favor explicar cómo estos especies parecidos fue excluidos?

Las otras subespecies reportadas en Peru son Athene cunicularia punensis , Athene cunicularia intermedia , Athene cunicularia nanodes , Athene cunicularia juninensis,.

Estos avistamientos son los primeros registros para Athene cunicularia boliviana para Peru. Los sitios mas cercanos donde esta reportada esta Subespecie estan en Bolivia, en La estación Biologica del Beni (14°50’Sur 66°15’Oeste 200 metros de altitud, Santa Cruz Bolivia 16°41’Sur 62°22’Oeste 300 metros de altitud. Existe un interesante registros en Pando Bolivia 11°11'Sur, 68°36' Oeste.( http://museonoelkempff.org/sitio/Informacion/KEMPFFIANA/Kempffiana%203(2)/23-24.pdf )
. Estas observaciones sugieren que la subespecie se esta dispersando en la Amazonia de Peru y Bolivia.
Aparte de las diferencias de habitat de las otras subspecies presentes en Peru como por ejemplo en Cusco esta reportada la subespecie juninensis el habitat de esta subespecie son los Andes en la Puna y sitios rocosos a mas de 3000 metros de altitud no esta reportada en la Amazonia o el bosque de nubes. Los ejemplares observados en    la Reserva de la Biosfera del Manu Athene cunicularia boliviana, es possible diferenciarlos por la coloración, punensis y juninensis son color rojizo amarillo con las marcas claras en el manto(espalda) color anteado palido el vientre color del ante amarillento con barras ventrales de color rojizo amarillo. Los puntos claros en la espalda varian de pequeños en nanodes a muy grandes en punensis. El Vientre varia de densamente barreado color oscuro en nanodes a unas pocas color rojizo amarillo punensis,. Notar que la subespecie nanodes esta reportada para la Costa Peruana.

8 Comentarios

Dan Lane

4/13/2015 09:21:42

This is a tricky case. Mauricio has indicated that he feels that we should consider passing subspecies records through the committee, and used his record of Phrygilus fruticetti coracinus as an example of one such subspecies that we should judge. I agree that some field-identifiable subspecies (especially those that are vagrants and colonizers from outside Peru, such as the Phrygilus) are likely candidates for CRAP consideration. However, the present case, involving Athene (Speotyto) cunicularia boliviana is less clear to me. First of all, I cannot seem to track down the type description of this form (L. Kelso, 1939, Biological Leaflet), as the publication seems very obscure. Indeed, obscure enough to have evaded being included in Peters’ Checklist (1968, 1981)! Neither LSU Library or Google Scholar search engines give me hits, and our museum reprints (which are normally excellent for reprints of that period) also seems not to have the description. Thus, I cannot even see what characters were used to justify the naming of boliviana (versus minor, cunicularia, grallaria or other lowland, cis-Andean taxa), where the type locality is, or to what population the name is correctly applied. I suspect that Virgilio has identified his birds to ‘boliviana’ not because of characters that were used to identify that taxon, but because it is the name given in Handbook of Birds of the World for the population from “Bolivia” (I will note that no characters are offered in HBW to distinguish this form from others!). Koenig and Weick (2008; Owls of the World by Helm and Yale) are vague in their mention of the taxon, and suggest it is found in “arid habitats of Bolivia and northern Argentina; intergrades with nominate race in Tucuman.” Again, there is no mention of distinguishing characters, or if these “arid habitats” are highland or lowland, but the mention of Tucuman suggests highland!
Virgilio is probably right that birds in southern Amazonian Peru are the same taxon as those in lowland northern Bolivia, but the validity of boliviana is one question I have (is it truly distinct from grallaria from eastern Brazil?), and the possibility that another taxon, such as minor from Roraima could be involved (the species is also now known from islands in the rios Amazon, Napo, and Ucayali. Are these the same as those in SE Peru or are they derived from Brazil?). Virgilio only compares his birds to the taxa already known from Peru (punensis, nanoides, and juninensis), and I think we can all agree that the Amazonian birds are none of the highland or coastal taxa… but he does not compare them to other cis-Andean taxa. Without a series of specimens and a copy of the description of boliviana, I’m not sure the question of the subspecies involved in Amazonian Peru can be answered so easily. Thus, I suggest that we put this record aside pending more information to address these issues, or only concentrate on subspecies that can be conclusively identified in the field. I am afraid that this form cannot, based on current knowledge, be conclusively identified from the evidence Virgilio has offered.

Responder

Manuel Plenge

4/13/2015 09:23:01

2 feb 2015
We had an exchange of e-mails in June 2014. I wrote on this case the following: “I have read too many papers where experts had specimens in front of them and identified the subspecies to be later assigned to another subspecies when proper collections were available. Identifying subspecies by sight should never be accepted. Hard proof must be presented and this should consist of proper museum comparisons. Photographs should not be valid in cases like this.”
I stand by those comments and my vote is NO.
PD: Fernando also wrote: “I agree with other members on not voting on this issue.” How come we are voting now?

4/13/2015 09:24:06

3 febr 2015

Largely I agree with Manuel, but I think we don’t have to take an all or nothing stance on whether we choose to review subspecies for the Peru list. There are subspecies which are quite distinctive and rather easily field identifiable (such as Mauricio’s Phrygilus I mentioned above) either by plumage or by voice. Who’s to say that today subspecies may not be tomorrow’s split species? If we build up a file on records of extralimital, field-identifiable subspecies, we may be able to amend the Peru list should such a split occur. Clearly, specimens (better yet: specimens with recordings and tissues!) would be ideal, but there are cases where photos are sufficient to identify a bird to subspecies. That said, the present case is decidedly *not* one of those (at least, I don’t believe so… if anyone else on the committee can elucidate how one identifies A. c. boliviana, I’m all ears!). So, as I stated above, I believe we should NOT vote on this case, and set it aside until more information is available to better address the situation. However, it is worthwhile, for the future of the case, to have comments in the file, no?

Dan lane

4/13/2015 09:25:19

4 febr 2014
Thanks to Manuel, I have uploaded a copy of Kelso’s description of A. c. boliviana. The type locality is Warnes, Santa Cruz dept. (a town just north of SC city, so it’s lowland). I find the characters for this taxon flimsy and hardly field-verifiable, so I would have to say again that I don’t think we can accept Virgilio’s submission without better documentation to identify these birds to subspecies.

Thomas Valqui

4/13/2015 09:26:13

7 abr 2015
It seems like to topics. One is to decide never to vote on subspecies, until we change our mind. The other is to not accpept Virgilios supbspecies because it cannot be identified safely based on the picture.

I don’t think one can say that subspecies cannot be identified by sight or picture. They sometimes can. And we can decide that on the particular case and not have a specific rule about subspecies. I don't see why there should be different rules for species or subspecies. The same rules rule. Evidence submitted has to convince a majority of us. It naturally will be more difficult to convince us in a subspecies case, but not because we apply different rules or something. If it can be safely identified on whatever evidence is submitted, it does not make a difference if it’s a species or a subspecies.

On the other hand I think in this case the pictures are not enough for a safe Id. So I vote NO.

Barry alker

7/8/2015 03:17:51

We need specimen data so NO

Fernando Angulo

7/9/2015 02:56:20

As for voting on subespecies, I think it is possible in cases where we have what we nned for that (good evidence and good descriptions of the different forms). In cases where not, like this, we should decide if we are NOT going to vote, or we are voting NO. These are different responses. I would say we voted no due to lack of proper evidence.

7/9/2015 02:53:35

On 9 July 2015
I believe that Virgilio is thinking: "This birds are colonizong through the big rivers coming from Bolivia, so they must be boliviana". His descriptions seems to be perfect for any of the subspecies. "Mostraban ojos amarillos; el pico de color gris. Supersiliares(cejas) color blancusco , cabeza de color marron con pequeños puntos color blancusco anteado al igual que el Dorzo(espalda), el pecho y abdomen color del Ante blancusco con muchas barras marrones".

I vote NOT to accept this as the first record of boliviana for Peru, because is still not clear to me, how he came to put this name to those individulas. Before I had a similar case for Boletin UNOP with Jonson Vizcarra, when he insisted having the firs record of a Colaptes rupicola ssp for Peru. We rejected that and only considered an very low record for southern Peru.

20014003Athene cunicularia boliviana

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20014003Athene cunicularia boliviana

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Reporta un anillo.

Reporta si ves un ave viva o muerta con anillo, o si sabes de un anillo que proviene de un ave silvestre. O reporta aves con banderas.

Tel. 51-1-353 7245 Celular movistar: 940 526 630 Celular entel: 997309185 [email protected]

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