LOGIN

RSS Facebook Twitter YouTube
GLOSSARY       

SEARCHGLOSSARY

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

PROFILESEARCH

Avatar

Please consider registering
guest

sp_LogInOut Log In sp_Registration Register

Register | Lost password?
Advanced Search

— Forum Scope —




— Match —





— Forum Options —





 

Minimum search word length is 4 characters - maximum search word length is 84 characters

sp_Feed Topic RSS sp_TopicIcon
“Freshwater Killer Whales”: Beaching Behavior of an Alien Fish to Hunt Land Birds
December 7, 2012
8:17 am
Avatar
Matt
Málaga, Spain
Admin
Forum Posts: 8239
Member Since:
June 13, 2011
sp_UserOfflineSmall Offline

Abstract

The behavioral strategies developed by predators to capture and kill their prey are fascinating, notably for predators that forage for prey at, or beyond, the boundaries of their ecosystem. We report here the occurrence of a beaching behavior used by an alien and large-bodied freshwater predatory fish (Silurus glanis) to capture birds on land (i.e. pigeons, Columbia livia). Among a total of 45 beaching behaviors observed and filmed, 28% were successful in bird capture. Stable isotope analyses (δ13C and δ15N) of predators and their putative prey revealed a highly variable dietary contribution of land birds among individuals. Since this extreme behavior has not been reported in the native range of the species, our results suggest that some individuals in introduced predator populations may adapt their behavior to forage on novel prey in new environments, leading to behavioral and trophic specialization to actively cross the water-land interface.

Open access via Plos One.

News piece.

Cake or death?
December 7, 2012
1:35 pm
Avatar
BigTom
Edinburgh
Veteran
Forum Posts: 311
Member Since:
July 17, 2011
sp_UserOfflineSmall Offline

Reassuring that that got into Plos... trying to put together stable isotope analysis of my mice at the moment and am looking at about 600 prey samples compared to their 15!

 

Worth adding to the KB Matt? - writing the dietary requirements would be enough fun to make it worth the effort :P

 

Edit - already in there!

December 7, 2012
2:36 pm
Avatar
Matt
Málaga, Spain
Admin
Forum Posts: 8239
Member Since:
June 13, 2011
sp_UserOfflineSmall Offline

Yep it's already there, but in need of some serious editing! Also written a quick news item with video about this research:

http://www.seriouslyfish.com/f.....unt-birds/

Are you hoping to publish in Plos then Tom?

Cake or death?
December 7, 2012
6:18 pm
Avatar
BigTom
Edinburgh
Veteran
Forum Posts: 311
Member Since:
July 17, 2011
sp_UserOfflineSmall Offline

Well I've just passed a lot of the work on to a colleague as I'm a bit swamped. Should hopefully get a co-author out of it, but need to see the results first before we think about which Journal to aim for.

Forum Timezone: Europe/Paris

Most Users Ever Online: 246

Currently Online:
1 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Devices in use: Desktop (1)

Top Posters:

Stefan: 1567

Plaamoo: 1257

mikev: 1134

Malti: 1099

Mark Duffill: 1012

Member Stats:

Guest Posters: 0

Members: 30504

Moderators: 0

Admins: 2

Forum Stats:

Groups: 4

Forums: 10

Topics: 4603

Posts: 36641

Newest Members: theresajean, [email protected], raj, Talha, VelzevulGR

Administrators: dunc: 1323, Matt: 8239