@article {292,
	title = {Chromosome data for Malagasy poison frogs (Amphibia: Ranidae: Mantella) and their bearing on taxonomy and phylogeny},
	journal = {Zoological Science (Tokyo)},
	volume = {18},
	number = {4},
	year = {2001},
	month = {May},
	pages = {505-514},
	abstract = {We compared chromosome morphologies for 11 species of Malagasy poison frogs, genus Mantella, and three outgroup taxa (genus Mantidactylus) using conventional and fluorescence staining techniques. All species studied had a karyotype of 2n=26, with five larger and eight smaller chromosome pairs. The 11th pair was acrocentic in Mantella nigricans represents the first such observation in the genus. The nucleolus organizer region (NOR) was located at secondary constrictions on chromosome pair 2 in all Mantella studied and in Mantidactylus grandisonae (while located on other chromosomes in all other species of Mantidactylus studied so far). Heterochromatin distribution was highly variable among Mantella species; C-bands positively staining with DAPI and CMA3 were observed. The possible structure of these bands, seemingly containing both A+T rich and C+G rich heterochromatin, is discussed. Phylogenetic reconstruction using chromosomal characters provided very little information. Evolution of the characters studied is probably either too fast (heterochromatin arrangement) or too slow (NOR location) to match the main cladogenetic events among Mantella species groups.},
	url = {file://localhost/Users/breda/Desktop/Documents/Literature/O/Odierna.pdf},
	author = {Odierna, Gaetano and Vences, Miguel and Aprea, Gennaro and L{\"o}tters, Stefan and Andreone, Franco}
}
@article {262,
	title = {Measuring and monitoring amphibian diversity in East Africa: Separating global from regional and local causes},
	year = {2004},
	url = {file://localhost/Users/breda/Desktop/Literature/L/Lo\%CC\%88tters\%202004.pdf},
	author = {L{\"o}tters, Stefan and J. Kosuch and Rotich, Damaris and Veith, Michael}
}
@article {387,
	title = {Phylogeography of Ptychadena mascareniensis suggests transoceanic dispersal in a widespread Africa-Malagasy frog lineage},
	journal = {Journal of Biogeography},
	volume = {31},
	year = {2004},
	pages = {593-601},
	author = {Vences, Miguel and J. Kosuch and R{\"o}del, Mark-Oliver and L{\"o}tters, Stefan and Channing, A. and Glaw, F. and W. B{\"o}hme}
}
@article {385,
	title = {Measuring and monitoring amphibian diversity in tropical forests. II. Estimating species richness from standardized transect censing},
	journal = {Ecotropica (Bonn)},
	volume = {10},
	number = {2},
	year = {2004},
	month = {04},
	pages = {85-99},
	abstract = {In the face of accelerating declines in amphibian populations, it is crucial to be able to effectively identify conservation priorities, both in terms of species and localities. Rapid assessment of amphibian community structure is therefore essential. Visual encounter Survey (VES) and standardized Visual transect sampling (SVTS) are becoming increasingly important in the measurement and monitoring of tropical anuran communities. In the present paper we compare the performance of SVTS along seven tropical forest transects where frog communities are currently being monitored: Lalut Birai (Borneo, Indonesia), Kakamega Forest National Reserve (Kenya, Africa), Tai National Park (Ivory Coast, Africa; two transects) and Ambolokopatrika-Betaolana Rainforest (Madagascar, three transects). We compared species lists generated from the transects with those from the entire study areas. Species richness was estimated using different incidence- and abundance-based richness estimators: ACE, ICE, Chao1, Chao2, Firsa-order jackknife, Michaelis Menton Estimators (MMMeans and MMRuns). Only, a few transect characteristics had a significant effect on species richness estimate accuracy. Species saturation was significantly enhanced by the number of transect walks (n(counts)). The relative standard deviation of the First-order jackknife estimator significantly decreased with an increasing daily species richness and a combined effect of daily species richness and the overall abundance of frogs. Comparison of transect: and forest: species lists show that terrestrial species are best represented by VES/SVTS. We recommend that a transect census Should be performed on at least 20 independent walks. Different species richness estimators should be applied simultaneously since their behavior/effectiveness under a wide array of transect parameters is still unknown.},
	url = {<Go to ISI>://PREV200510067140},
	author = {Veith, Michael and L{\"o}tters, Stefan and Andreone, Franco and R{\"o}del, Mark-Oliver}
}
@article {263,
	title = {What do we know about the amphibians from the Kenyan central and western highlands? A faunistic and taxonomic review},
	journal = {Salamandra},
	volume = {42},
	number = {2-3},
	year = {2006},
	month = {Aug 20 2006},
	pages = {165-179},
	abstract = {We reviewed the pertinent faunistic and taxonomic knowledge available from literature and scientific collections OD the amphibians from the central and western highlands of Kenya. Fifty-four anuran species in 19 genera and 12 families were recognized. Higher taxa are those also found in adjacent African regions. Exceptions are some genera otherwise known from extreme East Africa which, along with the order Gymnophiona, are absent from the central and western highlands of Kenya. The species Ptychadena schillukorum, P taenioscelis and Afrixalus osorioi are reported for the first time from Kenyan territory. The taxonomy of several species is poorly resolved, underlining the need for more alpha-taxonomic effort. This should include the application of modern methods, as molecular markers to uncover cryptic species diversity. We calculated 9.04 +/- 6.11 (1-30) localities per species (n = 54) and 3.98 +/- 2.88 (1-25) species per locality (n = 127), showing that sampling for both species and localities is of different quality and apparently far from complete. Sampling bias due to accessibility may play a role, and more comprehensive field surveys are suggested. It may be considered that certain amphibians reach their geographic range limits just at the periphery of the Kenyan central and western highlands (e.g. "Congolian" forest taxa) or are restricted to a small distribution within that region.},
	url = {<Go to ISI>://PREV200600620095},
	author = {L{\"o}tters, Stefan and Rotich, Damaris and Koester, Timo E. and Kosuch, Joachim and Muchai, Vincent and Scheelke, Karin and Schick, Susanne and Teege, Patrick and Wasonga, D. Victor and Veith, Michael}
}
@article {226,
	title = {A new species of arboreal Leptopelis (Anura : Arthroleptidae) from the forests of western Kenya},
	journal = {Herpetological Journal},
	volume = {16},
	number = {2},
	year = {2006},
	month = {Apr 2006},
	pages = {183-189},
	abstract = {A new species of arboreal Leptopelis is described from Kakamega Forest, western Kenya. It is a small, brown forest species formerly referred to L. modestus, but distinguished by differences in advertisement call and the sequence of the mitochondrial 16S rRNA gene. The specific allocation of certain related populations of Leplopelis in East and West Africa is briefly discussed.},
	url = {<Go to ISI>://PREV200700013403},
	author = {J{\"o}rn K{\"o}hler and Bwong, Beryl A. and Schick, Susanne and Veith, Michael and L{\"o}tters, Stefan}
}
@article {357,
	title = {Distribution patterns of amphibians from the Kakamega Forest, Kenya},
	journal = {African Journal of Herpetology},
	volume = {54},
	number = {2},
	year = {2005},
	month = {Dec 2005},
	pages = {185-190},
	abstract = {We discuss generalized geographical range patterns for the 24 anuran species that occur in the Kakamega Forest, western Kenya. Eight distributions are distinguished: from "western Equatorial Rift Valley" to almost entire sub-Saharan. The former may be more common than previously assumed, because some species displaying this geographical range pattern were only recently identified out of species complexes with large distributions. In contrast, continuous distributions of species over the Congo basin may be less common than currently understood.},
	url = {<Go to ISI>://PREV200600147256},
	author = {Schick, Susanne and Veith, Michael and L{\"o}tters, Stefan}
}
@article {227,
	title = {Contribution to the taxonomy of hyperoliid frogs (Amphibia: Anura: Hyperoliidae): advertisement calls of twelve species from East and Central Africa},
	journal = {African Zoology},
	volume = {40},
	number = {1},
	year = {2005},
	month = {Apr 05},
	pages = {127-142},
	abstract = {<p>Detailed advertisement call descriptions are provided for 12 species of hyperoliid frogs (Afrixalus dorsalis, A. osorioi, A. paradorsalis, A. quadrivittatus, Hyperolius cystocandicans, H. glandicolor H. langi, H. montanus, H. phantasticus, H. puncticulatus, Leptopelis christyi, Phlyctimantis cf. boulengeri) from different localities in East Africa and Gabon. The call of each species is figured in a spectrogram and waveform. East African populations of frogs of the Afrixalus fulvovittatus complex are considered to represent A. quadrivittatus (formerly a junior synonym of A. fulvovittatus). Its advertisement call differs significantly from West African populations reported as A. vittiger. The allocation of green and golden colour morphs from Mount Kenya to the species H. cystocandicans is confirmed by bioacoustics. The presence of H. kuligae in East Africa (Uganda) is doubted. Based on morphological comparisons with type specimens, calls of Phlyctimantis recorded in Gabon are tentatively referred to R boulengeri. The species is supposed to occur in Cameroon, Equatorial Guinea, Gabon and the Republic of Congo according to advertisement call comparisons. West African populations of Phlyctimantis may represent an undescribed species.</p>
},
	url = {<Go to ISI>://PREV200510106706},
	author = {J{\"o}rn K{\"o}hler and Scheelke, Karin and Schick, Susanne and Veith, Michael and L{\"o}tters, Stefan}
}
@article {395,
	title = {Amphibian abundance and diversity in Meru National Park, Kenya},
	journal = {African Journal of Ecology},
	volume = {45},
	number = {1},
	year = {2007},
	month = {Mar 2007},
	pages = {55-61},
	abstract = {{The diversity and abundance of amphibians were investigated in Meru National Park, Kenya, using transect sampling, drift-fence and pitfall trapping and opportunistic collecting. A total of 430 individuals under seven genera (Amietophrynus, Hemisus, Hyperolius, Phrynobatrachus, Phrynomantis, Ptychadena, Xenopus) comprising eleven species were sampled in three different habitats (apart from this, two additional species are known from Meru National Park): Acacia-wooded grassland; Combretum-wooded grassland; Acacia-Commiphora bushland. The sex ratio for almost all species was balanced (chi-square, chi(2); P > 0.5) and was not affected by habitat type (ANOVA: F = 8.3026},
	url = {<Go to ISI>://PREV200700195265},
	author = {Wasonga, D. Victor and Bekele, Afework and L{\"o}tters, Stefan and Balakrishnan, Mundanthra}
}
@article {390,
	title = {Larval morphology of reed frogs, Hyperolius kivuensis and H. viridiflavus, from western Kenya (Amphibia, Hyperoliidae)},
	journal = {Revue Suisse de Zoologie},
	volume = {114},
	number = {4},
	year = {2007},
	month = {Dec 2007},
	pages = {825-837},
	abstract = {We describe external characters, oral disc and oral cavity structures of larval Hyperolius kivuensis and H. viridiflavus, i.e. exotrophous lentic benthic type IV tadpoles. External morphology of both is comparable and matches descriptions of other Hyperolius species. Differences among the two taxa were noted in the keratinized labial teeth. In H. kivuensis, the spoon-shaped cusped tooth type is frequent and represented by two different subtypes: (i) "cusped" with four cusps, the two distal of which only slightly larger than the lateral cusps; (ii) "pointed" with the two distal cusps larger than the two lateral cusps forming a bifurcation. The latter subtype is rare in H. kivuensis, while most frequent in H. viridiflavus. In this species, also another type occurs, characterized by two long distal cusps, forming a bifurcation, and two small lateral cusps; the cusped type with cusps of the same size as in H. kivuensis is rare. Both species show similar oral cavity structures except for the choanae position, i.e. arranged in a V that is opened posteriorly in H. kivuensis versus a V opened anteriorly in H. viridiflavus. Choanae position and keratinized labial teeth structure may provide diagnostic features for these and other species of Hyperolius.},
	url = {<Go to ISI>://PREV200800120365},
	author = {Viertel, Bruno and L{\"o}tters, Stefan and Baumgart, Andrea and Oberst, Marc and Eisenbeis, Gerhard and Veith, Michael}
}
