@article {47715,
	title = {Call Repertoire of the Sahamalaza Sportive Lemur, Lepilemur sahamalazensis},
	journal = {International Journal of Primatology},
	volume = {36},
	year = {2015},
	month = {Jan-06-2015},
	pages = {647 - 665},
	abstract = {The acoustic structure of primate loud calls can be used as a powerful, inexpensive, and noninvasive tool for intra- and interspecific comparative analyses, reconstruction of phylogeny, and primate surveys. Despite the range of possibilities offered by acoustic analysis, only few studies so far have focused on quantitative descriptions of the acoustic structure of primate loud call repertoires. Here we aimed to assess the vocal repertoire of the solitary Sahamalaza sportive lemur, Lepilemur sahamalazensis, and to investigate potential communication functions. We recorded every sportive lemur vocalization we heard during 1000 h of nocturnal observations of eight collared individuals, as well as opportunistic searches in the Ankarafa Forest, Sahamalaza Peninsula in northwest Madagascar. In addition, we used playback experiments with four call types to clarify call function. We measured both temporal and spectral properties to describe calls quantitatively and used cross-validated discriminant function analysis to validate call types that we identified from a preliminary qualitative inspection of the spectrograms of 107 calls. We identified six distinct loud call types with the possibility of a seventh call type, with six loud call types similar to those of Lepilemur edwardsi and two loud call types similar to those of four other sportive lemur species. The described call types most likely function in mate advertisement, offspring care, and territorial defense. Future studies of loud calling of the Sahamalaza sportive lemur are needed to clarify if certain call types are sex specific and if loud calls could be used for recognition of individuals to enable noninvasive density measurements and species monitoring.},
	keywords = {bioacoustics, Call function, call type, communication, Lepilemur},
	issn = {0164-0291},
	doi = {10.1007/s10764-015-9846-0},
	url = {http://link.springer.com/10.1007/s10764-015-9846-0},
	author = {Seiler, Melanie and Schwitzer, Christoph}
}
@article {47708,
	title = {A new species of the Boophis rappiodes group (Anura, Mantellidae) from the Sahamalaza Peninsula, northwest Madagascar, with acoustic monitoring of~its~nocturnal~calling activity},
	journal = {ZooKeys},
	volume = {435},
	year = {2014},
	month = {Jun-08-2015},
	pages = {111 - 132},
	abstract = {<p>A new species of treefrog of the <em>Boophis rappiodes</em> group (Anura, Mantellidae) is described from the Sahamalaza \&ndash; Iles Radama National Park in northwest Madagascar. This new species is green in colour with bright red speckling across its head and dorsum; similar in morphology to other species of this group including: B. bottae, B. rappiodes, B. erythrodactylus and B. tasymena. The new species can be distinguished by its advertisement call and by a genetic divergence of more than 4.9\% in the analysed mitochondrial 16S rRNA gene fragment. Its call consists of two note types: a trill and a click; although similar sounding to B. bottae, the trill note of the new species has a faster pulse rate while the click note is predominantly two-pulsed rather than three. All individuals were detected from the banks of two streams in Ankarafa Forest. The new species represents the only member of the B. rappiodes group endemic to Madagascar\&rsquo;s western coast, with the majority of other members known from the eastern rainforest belt. Despite its conspicuous call, it has not been detected from other surveys of northwest Madagascar and it is likely to be a local endemic to the peninsula. The ranges of two other amphibian species also appear restricted to Sahamalaza, and so the area seems to support a high level of endemicity. Although occurring inside a National Park, this species is highly threatened by the continuing decline in the quality and extent of its habitat. Due to these threats it is proposed that this species should be classified as Critically Endangered according to the IUCN Red List criteria.</p>
},
	keywords = {advertisement call, Amphibia, Boophis ankarafensis sp. n., conservation, Sahamalaza {\textendash} Iles Radama National Park},
	issn = {1313-2989},
	doi = {10.3897/zookeys.435.738310.3897},
	url = {http://zookeys.pensoft.net/articles.php?id=3990},
	author = {Penny, Samuel and Andreone, Franco and Crottini, Angelica and Rakotozafy, Lovasoa and Schwitzer, Christoph and Rosa, Gon{\c c}alo}
}
