Biogeography « Chiroblog

Archive for the 'Biogeography’

News in April 2013

Monday 15 April 2013

A new selection of scientific articles for the month of April 2013 :

- An article on the potential of green roofs as habitats for bats.
Based on sound monitoring performed in the heart of London, green roofs appear
more favorable for bats compared to conventional roofs [Download PDF].

- An article on the seasonal variability of the activity of bats at different heights.
The study with Anabat records in an English forest advises placing recorders ultrasound
at different heights to achieve acoustic inventories during the active period of bats [Download PDF].

- An article on the factors contributing to mortality of bats by wind turbines in the Mediterranean region.
94% victims would occur between August and October, at temperatures above 13 ° C and a wind speed of less than 5 m/s [Download PDF].

- A second article on bats victims of wind turbines with a study based in Greece.
The main recommendation of the study is to increase the minimum wind speed required
for starting to wind 5 m/s, threshold limit damage to bats
with minimal impact on the production of electricity [Download PDF].

The team Chiroblog

References
Amorim, F., Rebelo, H., & Rodrigues, The. (2012). Factors Influencing Bat Activity and Mortality at a Wind Farm in the Mediterranean Region. Acta Chiropterologica, 14(2), 439–457. two:10.3161/150811012X661756

Georgiakakis, P., Mole, E., Carcamo, B., Doutau, B., Kafkaletou-Diez, A., Vasilakis, D., & Papadatou, It. (2012). Bat Fatalities at Wind Farms in North-Eastern Greece. Acta Chiropterologica, 14(2), 459–468. two:10.3161/150811012X661765

Pearce, H., & Walters, C. The. (2012). Do Green Roofs Provide Habitat for Bats in Urban Areas? Acta Chiropterologica, 14(2), 469–478. two:10.3161/150811012X661774

Staton, T., & Poulton, S. (2012). Seasonal Variation in Bat Activity in Relation to Detector Height: A Case Study. Acta Chiropterologica, 14(2), 401–408. two:10.3161/150811012X661710


 

Evolutionary convergence (3) : the nectarivorie

Sunday 7 April 2013

Third episode of series devoted to evolutionary convergences. After the bats and fisherwomen Myotis, This new section is dedicated to nectarivorie in the family Phyllostomidae. This family of Central and South America bats is characterized by its wide variety of diets: the’insectivorie, the carnivorie, thehématophagie, the frugivorie and nectarivorie. The nectar of this family were previously grouped on the basis of criteria ecomorphological (ecology + morphology): elongated rostrum and languages, reduced dentition and theft on site. A thorough molecular study revealed a double origin of nectarivorie, with subtle morphological differences, particularly in terms of the structure of the stock (e.g. Datzmann et al. 2010).

Glossophaga soricina (Phyllostomidae), nectarivore bat on a distributor of nectar

© Photo: Raphaël Colombo

Yann for Chiroblog

Citation

Datzmann, T., von Helversen, The. et F. Mayer. 2010. Evolution of nectarivory in phyllostomid bats (Phyllostomidae Gray, 1825, Chiroptera: Mammalia). BMC Evolutionary Biology 10: 165.

Evolutionary convergence (2) : Myotis !

Friday 1 March 2013

The series of articles devoted to evolutionary convergences continues. After bats fisherwomen, a second article on Myotis. This kind of bat is distributed worldwide and includes more than 100 cash. The mouse was until recently classified 3 major groups according to their ecomorphology (Findley 1972) : terrestrial gleaners, aerial plankton eaters and "fishing" on the surface of the water. In these 3 groups, the morpho-anatomical (morphology + anatomy) reflected partly the operation of the resource. For example, M. daubentonii Eurasia and M. lucifugus America were clustered in the group of Myotis "Fishermen" by their long legs and feet strong. The use of genetic data is causing a major disruption of the classification and relations of kinship based on data ecomorphological. So, M. daubentonii turns out to be a close cousin of M. bechsteinii Europe in the newly defined group of murine Palearctic, M. lucifugus it is associated with other species in the American. Based on ecomorphological convergences (ecology + morphology), species were grouped, considered from a common ancestor while it was close equivalents ecological appeared simultaneously in different biogeographical regions(Ruedi et Mayer 2001).

Yann for Chiroblog

References

Findley, J.S. 1972. Phenetic relationships among bats of the genus Myotis. Systematic Zoology 21: 31-52.

Ruedi, M. et F. Mayer. 2001. Molecular systematics of bats of the genus Myotis (Vespertilionidae) suggests deterministic ecomorphological convergences. Molecular Phylogenetics and Evolution 21: 436-448.

Bats fossil carnivores ?

Wednesday 6 February 2013

It is Tunisia, the Djebel Chambi located in the region of Kasserine, the team of Paleontology Montpellier found a fossil specimen of "microchiroptère" very large old about 50 million years. The single tooth of the species Witwatia sigei however, revealed many important information about the evolutionary history of bats in North Africa. This geographical area is known for being the birthplace of a very ancient and endemic family known as the Philisidae (considered archaic vespertilionoïdes). Their story spans over 20 Million years, either from the Eocene (environ -50 Ma) the Oligocene (environ -20 Ma)abouthilisButae have the characteristic grouping of very large size specimens whose weight was equivalent to the largest carnivorous bats present (+ 100g as Macroderma gigas, Vampyrum spectrum or Scotophilus gigas). The analysis of tooth morphology tells us that the bat fossil found in Tunisia was able to hunt small vertebrates, or at least have a more opportunistic than small insectivorous bat fossils from the same period (Ravel 2012). Another fossil bat very large carnivore and is found in the South West of France, in the Quercy (SiGe 2011). The author of this study has established the family as Philisidae Necromantidae which includes fossil species of large size in the European Paleogene (is between 43 and 29 Million years). These findings demonstrate the early acquisition of varied diets and converging in the earliest periods of the history of modern bats.

Anthony Ravel

References :

Ravel, A., Marivaux, L., Tabuce, R., Ben Haj Ali, M., Essid EL M., et Vianey-Liaud, M. (2012). A new large philisid (Mammalia, Chiroptera, Vespertilionoidea) from the late Early Eocene of Chambi, Tunisia. Palaeontology, 55(5), 1035-1041.
Accessible: http://onlinelibrary.wiley.com/doi/10.1111/j.1475-4983.2012.01160.x/pdf

SiGe, B. (2011). Cryptobune nov. gen., Bloodwing carnivorous phosphorites of Quercy, SW France. Bulletin of the Natural History Society of Toulouse, 147, 47-54.

News in October 2012

Friday 5 October 2012

A new selection of scientific articles for the month of October 2012 :

- An article that solves a mystery of 65 years during which we knew only a single copy of Paracoelops megalotis, a small bat in the collected in the Hipposiderids family 1947 to the Viet Nam. Person since had never managed to capture another copy of the species that represents a unique kind. A re-examination of the specimen type Paracoelops megalotisdéceller has significant errors in the description and comparison with bats captured recently in Vietnam led to the conclusion that the case was none other than Hipposideros pomona, a species relatively frequent in Southeast Asia [download the PDF].

- A new phylogeny of the Murine (Myotis) Central America and tropical was published in the journal PLoS One
[download the PDF]. On the basis of molecular criteria, three new lines nt been described, It will add to the 15 already known.

- A publication published in the Canadian Journal of Zoology highlights possible hybridization
between species Pipistrellus pipistrellus and P. pygmaeus [link to the summary].

- An article that highlights the learning of specific groups in the Emballonuridae acoustic signals Saccopteryx bilineata, useful for recognition between individuals [link to the summary]

The team Chiroblog

References


- Thong V.D., Dietz C., Denzinger A., Bates P.J.J., Puechmaille S.J., Christian C. Schnitzler and H-U. (2012). Resolving a mystery mammal: the identity of Paracoelops megalotis (Chiroptera: Hipposideridae). Zootaxa, 3505, 75-85.

- Knornschild, M., Large, M., Metz,M.., Mayer, F., & von Helversen, The. (2012). Learned vocal group signatures in the polygynous beats Saccopteryx bilineata. Animal Behaviour, 84(4), 761-769. two:10.1016/j.anbehav.2012.06.029

- Larsen RJ, Knapp MC, Genoways HH, Khan FAA, Larsen PA, et al. (2012) Genetic Diversity of Neotropical Myotis (Chiroptera: Vespertilionidae) with an Emphasis on South American Species. PLoS ONE 7(10): e46578. two:10.1371/journal.pone.0046578

- Sztencel-Jabłonka, A., & Bogdanowicz, In. (2012). Population genetics study of common (Pipistrellus pipistrellus ) and soprano (Pipistrellus pygmaeus) pipistrelle bats from central Europe suggests interspecific hybridization. Canadian Journal of Zoology, 90(10), 1251–1260. two:10.1139/z2012-092

iBatsID: an online tool for the identification cries of European bats

Wednesday 8 August 2012

A new identification software, by automatic classification of ultrasonic bat just to see the day. Its use is similar to what is currently common in this area. The major new features are free and its method of use (Java platform hosted online on the internet) impressive and its area of ​​use (Europe). The user enters values ​​for different acoustic parameters (former. duration of cries, peak frequency, terminal frequency, etc.) and software iBatsID returns the probability of each cry of belonging to different species. The identification to this level is therefore fully quantitative (probabilistic). The probabilistic interpretation of the results is then left to the user. Measurements of acoustic parameters can be performed under different software although the measures are optimized as paid software Sonobat.

By the use of sound content in a very wide variety (on the plans as inter and intra-specific sources of their geographical), the ability to compare information on populations of bats sampled acoustically is now possible at the European level. Two main limitations are discussed, less accurate vis-à-vis other methods reach more local (but with fewer species included) and low reliability of identification Myotis at specific (recurring problem for all methods available to date).

More explanations on the website IBAT : https://sites.google.com/site/ibatsresources/iBatsID

Seb, Dorian et Yann

 

 

 

A new book on the acoustics of European bats

Monday 30 July 2012

FYI, the new book on acoustics of bats in Europe
Michel Barataud est en vente enfin

ECOLOGY OF SOUND IN EUROPE CHIROPTERA + 1 DVD
Species identification, study of their habitats and behaviors
hunting
Author : Michel Barataud / Co-publishing : Biotopes & MNHN / Collection
Inventories and Biodiversity
344 pages – Hardcover – Format 16,5×24 cm – ISBN 978-2-914817-82-0
- Price 49 € ttc

This new book takes stock of knowledge for almost
Twenty years on ultrasonic detection. The first approaches,
purely auditory, it adds another dimension : Identification
computer analysis of ultrasound.
With ever more powerful sensors and computer analysis,
the author shows that it is now possible to identify almost 80 %
des contacts ultrasonores, to conduct surveys and undertake
Studies increasingly fine without disturbing any
bat. The new manual also benefits from a DVD which are
grouped the sound samples illustrating the method and the
files (graphics) necessary for the identification of the species.

More information about the blog dedicated to the release of this book.

Vincent

 

 

Training to the capture of bats

Thursday 31 May 2012

Despite the opportunities offered by the identification of animals within their lodges and advances in acoustic detection, capture still essential, especially for evaluation of reproductive status, the identification of certain species, followed by the radio-or the collection of biological samples. The capture is not trivial in terms of risk to bats and because of the increase of nominations, it seemed essential to establish a training system to capture the benefit of bats and bat.

So, sheets 13 and 19 the National Action Plan (PNA) Bats have been drafted to address this lack :

  • Fiche action 13 : Development and validation of protocols national survey and monitoring of bat populations.
  • Fiche action 19 : Establish a national training system for monitoring and studying the bats, especially for the procedure for issuing authorizations capture.

The design and implementation of these actions are performed by working groups and coordinated by the MNHN (National Museum of Natural History, Paris). The group consists of experienced bat inspired by what already exists in the regional groups and the NFB. Beyond the Plan, these missions are designed to establish sustainable systems that will define a scientific framework to capture in order to best ensure the safety of animals and quality of data collected.

Writing a capture guide and a technical manual to help identifying and taking action (in progress, action 13 of PNA), and implementation of training (actionactionwill synthesize and disseminate knowledge to the practice of capturing in a scientific. This will, other, homogenize the action and the nature of the data, so they are fair and comparable to the other chiroptérologue.

The formation evening nominative, that is to say the same for all persons who wish to develop additional skills to conduct catch autonomy, whether professional or volunteer naturalists. In order not to promote the capture technique as the first approach to discipline, should be to ensure that students have prior knowledge of general biology and ecology of bats and the various monitoring techniques and inventory.

During this training, students will be coached by trainers (experienced bat who volunteered) who complete, first, a national course in order to standardize training and to have joint discussions on ethics, priorities and approach.

For training the trainee will have access to :

  • a code of ethics and a note of commitment-a-vis health risks that must be read and signed by the trainee;
  • ongoing training in the field, through the use of a book containing all the training objectives, to validation by a designated trainer. The field training will be done during capture sessions set up for scientific and / or conservation;
  • a theoretical course in region (or inter-regions according to the application, 2 days, free) according to a national repository which aims to present the context in which science must be a catch, Ethics, regulations, health aspects and the theoretical and technical knowledge.

To ensure that trainees are able to capture an independently after training (book validated and probation completed), should assess their skills as a common repository for consistency and fairness in assessment courses in region (or inter-regional).

To date, the nominations for the capture of bats are addressed to DREAL, MEDDTL transmitted to and signed by the advice of Prefectures CNPN. By region, regional coordinators, groups or the bat CSRPN are available to have an opinion on the application. It was agreed with the MEDDTL CNPN and once the training establishment, authorization to capture issued at the end of the training will be required in addition CERFA 13616*01 "Derogation for the capture or removal, the destruction, deliberate disturbance of specimens of protected species "to any request for exemption. For the time being, the working group decided to focus on training. Any alterations to the processing of exceptions is a complex subject that will be addressed at a later stage in consultation with all stakeholders.

The first step in this process is to identify the trainers. A paper on the role and responsibilities of the trainer was prepared (download here). If you want to take part in this project by becoming a trainer, do you know by completing the form (download here) and return it to your local bat group (Regional Coordinator SFEPM), the MNHN (jmarmet@mnhn.fr) or SFEPM (chiro.sfepm@orange.fr) before 12 June 2012. Once the trainers identified, they will meet in the fall to attend a training course cross.

When all forms have been received and centralized, the working group "to capture training" will make an appointment in close consultation with regional groups and bat DREAL, to agree on a list on its own merits, depending on experience and motivation of bat.

Finally, Book training will be distributed this spring, to all other network, so that everyone can find out. However, validation of targets and the first theoretical courses can only be done once the trainers trained, they will therefore be in 2013.

For more information, Questions or comments concerning the formation, you can contact us by email : jmarmet (at sign) mnhn.fr or telephone : 01 40 79 57 64.

Julie (Project Manager bat MNHN)

News in May 2012

Tuesday 15 May 2012

A new selection of scientific articles for the month of May 2012 :

- An article published in PloS One which develops the use of DNA minibarcodes
to detect the diet of mountain murine Plecotus macrobullaris [link to the abstract and PDF].

- A new classification of the family Emballonuridae Old World
published in Molecular Phylogenetics and Evolution [link to the summary].

- A new species of Gender Hipposideros just been described and its name, Hipposideros griffini rend homage au Professeur Donald Redfield Griffin (1915–2003) which initiated extensive research on echolocation in bats [link to the summary].

-Group classification 'turpis’ in Hipposideros just be reviewed with the key two subspecies elevated to full species and one new subspecies described [link to PDF].

- An article published in Nature communications describing the wide variety ofParamyxoviridaein bats (and rodents) [download communication]. Like other viral families (lesCoronaviridae for example) the Paramyxoviridae, comprising the genera Henipavirus (Virus Nipah and Hendra), but alsoRubulavirus (mumps virus: “mumps”) etMorbillivirus (measles virus, and fever virus-of-small-ruminant) have diversified in multiple groups of mammals and especially in large groups such as rodents and bats. We'll go into more detail on this article in a future post.

Otherwise, we remind you 3th international meetings bats Berlin and the Bat Distribution Viewerwhich allows to view distribution maps of bat species worldwide.

The team Chiroblog

References

- Alberdi, A., Garin, I., Aizpurua, O., & Aihartza, J. (2012). The Foraging Ecology of the Mountain Long-Eared Bat Plecotus macrobullaris Revealed with DNA Mini-Barcodes. PLoS ONE, 7(4), e35692.

- Ruedi, M., Friedli-Weyeneth, N., Teeling, It. C., Puechmaille, S. J., & Goodman, S. M. (2012). Biogeography of Old World emballonurine bats (Chiroptera: Emballonuridae) inferred with mitochondrial and nuclear DNA. Molecular phylogenetics and evolution, 64(1), 211-204. two:10.1016/j.ympev.2012.03.019

- Thong, V.D., Puechmaille S.J., Denzinger A., Csorba G., Dietz C., Bates P.J.J., Teeling E.C. Schnitzler and H-U. (2012). A new species of Hipposideros (Chiroptera: Hipposideridae) from Vietnam. Journal of Mammalogy, 93(1), 1-11.

-Thong, V.D., Puechmaille S.J., Denzinger A., Bates P.J.J., Dietz C., Csorba G., Soisook P., Teeling E.C., Matsumura S., Furey N. Schnitzler and H-U. (2012). Systematics of the Hipposideros turpis complex with a description of a new subspecies from Vietnam. Mammal Review, 42(2), 166-192.

- Drexler, J. F., Corman, In. M., Miller, M. A., Maganga, G. D., Vallo, P., Binger, T., Gloza noise, FF. et al. (2012). Bats host major mammalian paramyxoviruses. Nature Communications, 3, 796.

Wind Energy Conference and impacts on wildlife

Monday 7 May 2012

A conference on wind energy and impacts on wildlife will be held from 5 at 7 February 2013 Stockholm à en Suède.

For more information, you can visit the website dedicated to the conference(site in English) : www.naturvardsverket.se/CWE2013

Seb.