© Biospeologica Bibliographia - Publications 2010-2

© Biospeologica Bibliographia
Publications 2010-1
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embryos, which increases mouth and taste bud development at the
expense of eyes via pleiotropic Shh signaling. Cavefish lack melanin
synthesis in regressed pigment cells due to loss-of-function mutations in
oca2, which normally regulates the supply of L-DOPA precursor during
melanin synthesis. The block in cavefish pigmentation occurs at a
metabolic branch point in which L-tyrosine is normally converted either
(1) to L-DOPA, DOPAquinone, and melanin by tyrosinase or (2) to L-
DOPA, dopamine, and related catecholamines by tyrosine hydroxylase
and other enzymes. A similar block in the initial step of melanin synthesis
has evolved independently in the cave plant hopper Oliarus polyphemus
and other diverse cave animals. In Astyanax cavefish, the benefit of lost
melanin pigment appears to be the production of excess L-DOPA and its
derivative dopamine by the second alternative pathway, which promotes
constructive development of dopaminergic neurons and enhances the
magnitude of adaptive feeding behavior. We conclude that the evolution
of beneficial constructive traits could have driven regressive traits via
developmental tradeoffs encoded in pleiotropic genes, which adapt cave
animals to life in darkness. http://www.icsb2010.net/
JEFFERY (W. R.) & STRICKLER (A. G.), 2010. Chapter
6. Development as an Evolutionary Process in Astyanax
Cavefishes:141-182. DOI:
http://dx.doi.org/10.1201/EBK1578086702-c6. In:
TRAJANO (E.), BICHUETTE (M. E.) & KAPOOR (B.
G.), Biology of Subterranean Fishes. Edited by TRAJANO
(E.), BICHUETTE (M. E.) & KAPOOR (B. G.). ISBN:
978-1-57808-670-2. eBook ISBN: 978-1-4398-4048-1.
Science Publishers 2010. 460 p.
JIANG (T.), LIU (R.), METZNER (W.), YOU (Y.), LI (S.),
LIU (S.) & FENG (J.), 2010. Geographical and individual
variation in echolocation calls of the intermediate leafnosed
bat, Hipposideros larvatus. Ethology 116(8,
August):691-703. DOI: http://dx.doi.org/10.1111/j.1439-
0310.2010.01785.x. ABS: The cause and significance of variation in
echolocation call frequency within hipposiderid bats is not well
understood despite an increasing number of allopatric and sympatric
examples being documented. We examined variation patterns in the
resting frequency (RF) of echolocation calls emitted by the intermediate
leaf-nosed bat, Hipposideros larvatus, on a broad geographical scale.
Data mining technology and Kruskal-Wallis test both showed substantial
variation with a longitudinal pattern in RF in H. larvatus among colonies,
and this variation was associated with geographical distance and not body
size. In addition, we found that a high degree of variability between
individuals was hidden under the geographical variation. The results
support an effect of random cultural drift, and challenge the prey
detection hypothesis. Moreover, an acoustic difference among local
island colonies may be indicative of a vocal dialect. We found that each
colony of H. larvatus seems to maintain a "private bandwidth", which
could be used for colony identity and individual communication thus
helping individuals and colonies to get a number of fitness benefits.
JOCHUM (A.), WEIGAND (A. M.), SLAPNIK (R.) &
KLUSSMANN-KOLB (A.), 2010. Zospeum: Luminaries
of the Dark - Barcoding highlights an old taxonomic
conundrum besetting microsnails (Pulmonata, Ellobioidea,
Carychiidae). Abstract. The Malacological Society of
London Molluscan Forum, Nov. 30, 2010, NHM London,
UK.
JOHNSON (J. B.), FORD (W. M.), RODRIGUE (J. L.),
EDWARDS (J. W.) & JOHNSON (C. M.), 2010. Roost
selection by male Indiana myotis following forest fires in
Central Appalachian Hardwoods Forests. Journal of Fish
and Wildlife Management 1(2):111-121; e1944-687X.
DOI: http://dx.doi.org/10.3996/042010-JFWM-007.
JONES (B.), 2010. Microbes in caves: agents of calcite
corrosion and precipitation:7-30. DOI:
http://dx.doi.org/10.1144/SP336.2. In: PEDLEY (H. M.) &
ROGERSON (M.), Tufas and Speleothems: Unravelling
the Microbial and Physical Controls, Edited by: PEDLEY
(H. M.) & ROGERSON (M.), University of Hull, UK.
Geological Society, London, Special Publications, 336.
Bernard LEBRETON & Jean-Pierre BESSON
Créé le : 01.01.2010
Modifié le : 30.06.2010
ABS: Diverse biogenic and abiogenic processes produce calcite
speleothems. From a biogenic perspective, cave microbes mediate a wide
range of destructive and constructive processes that collectively influence
the growth of calcite speleothems and their internal fabrics. Destructive
processes include substrate breakdown by dissolution, boring and residue
micrite production, whereas constructive processes include microbe
calcification, trapping and binding of detrital particles to substrates, and
microbial induced calcite precipitation. Biogenesis can be established
from: (1) the presence of mineralized microbes; (2) fabrics, such as
stromatolite-like structures, that can be attributed to microbial activity;
and/or (3) geochemical proxies (carbon and oxygen isotopes, lipid
biomarkers) considered indicative of microbe activity. Such criteria have,
for example, been used to demonstrate microbial involvement in the
formation of pool fingers, stalactites/stalagmites, cave pisoliths and
moonmilk. Nevertheless, absolute proof of microbial biogenesis in
calcitic speleothems is commonly difficult because taphonomic processes
and/or diagenetic processes commonly mask evidence of microbial
activity. The assumption that calcitic speleothems are abiogenic, which
has been tacitly assumed in many studies, is dangerous as there is clear
evidence that microbes thrive in most caves and can directly and
indirectly influence calcite precipitation in many different ways.
JONES (D. S.), TOBLER (D.), SCHAPERDOTH (I.),
MAINIERO (M.) & MACALADY (J. L.), 2010.
Community structure of subsurface biofilms from the
thermal sulfidic caves of Acquasanta Terme, Italy. Applied
and Environmental Microbiology 76(17, September):5902-
5910. DOI: http://dx.doi.org/10.1128/AEM.00647-10.
JUAN (C.) & EMERSON (B. C.), 2010. Evolution
underground: shedding light on the diversification of
subterranean insects. Journal of Biology 9(3):17, 5 p. DOI:
http://dx.doi.org/10.1186/jbiol227. ABS: A recent study in BMC
Evolutionary Biology has reconstructed the molecular phylogeny of a
large Mediterranean cave-dwelling beetle clade, revealing an ancient
origin and strong geographic structuring. It seems likely that
diversification of this clade in the Oligocene was seeded by an ancestor
already adapted to subterranean life. See research article
http://www.biomedcentral.com/1471-2148/10/29 webcite.
JUAN (C.), GUZIK (M. T.), JAUME (D.) & COOPER (S.
J. B.), 2010. Evolution in caves: Darwin's "wrecks of
ancient life" in the molecular era. Molecular Ecology
19(18, September):3865-3880. DOI:
http://dx.doi.org/10.1111/j.1365-294X.2010.04759.x. ABS:
Cave animals have historically attracted the attention of evolutionary
biologists because of their bizarre "regressive" characters and convergent
evolution. However, understanding of their biogeographic and
evolutionary history, including mechanisms of speciation, has remained
elusive. In the last decade, molecular data have been obtained for
subterranean taxa and their surface relatives, which have allowed some of
the classical debates on the evolution of cave fauna to be revisited. Here,
we review some of the major studies, focusing on the contribution of
phylogeography in the following areas: biogeographic history and the
relative roles of dispersal and vicariance, colonization history, cryptic
species diversity and modes of speciation of cave animals. We further
consider the limitations of current research and prospects for the future.
Phylogeographic studies have confirmed that cave species are often
cryptic, with highly restricted distributions, but have also shown that their
divergence and potential speciation may occur despite the presence of
gene flow from surface populations. Significantly, phylogeographic
studies have provided evidence for speciation and adaptive evolution
within the confines of cave environments, questioning the assumption
that cave species evolved directly from surface ancestors. Recent
technical developments involving "next generation" DNA sequencing and
theoretical developments in coalescent and population modelling are
likely to revolutionize the field further, particularly in the study of
speciation and the genetic basis of adaptation and convergent evolution
within subterranean habitats. In summary, phylogeographic studies have
provided an unprecedented insight into the evolution of these unique
fauna, and the future of the field should be inspiring and data rich. KW:
Cave animals, cryptic species, phylogeography, speciation, subterranean,
vicariance and dispersal.
JUBERTHIE (C.), 2010. Jacques Pierre DURAND, 12 Juillet
1936 - 13 Avril 2007. SIBIOS-ISSB Newsletter 7(2006-
2010):26-34.