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The ecological niche of a specialized subterranean spider

Stefano Mammola [et al.] - Nama Orang;

Hypogean habitats offer unique opportunities for ecological studies because they are characterized by low abundance and diversity of organisms, they receive low energy inputs, they are relatively stable from a climatic point of view, and they are quite easily modeled. However, given the harsh conditions of the working environment and difficulty of
access, very few studies have investigated in detail the ecology of subterranean species directly in the field. In this study, we describe the ecological niche of the subterranean spider Troglohyphantes vignai (Araneae, Linyphiidae). We monitored the population of T. vignai in a disused graphite mine in the Western Italian Alps over 1 year, and recorded the main biotic and abiotic parameters characterizing each sampling plot (i.e., temperature,humidity, prey availability, illuminance, and structural complexity). The ecological niche of T. vignai was modeled through polynomial generalized linear mixed models (GLMM) and illustrated graphically by means of three-dimensional plots and GIS techniques. The environmental range in which the probability of presence of T. vignai was higher was consistent
with a trade-off between climatic stability and food availability. Neither temporal nor spatial variation of the niche of T. vignai was detected through the year. The methodology used here may be easily adapted to other hypogean sites, paving the way to a novel understanding of niche partitioning in subterranean ecosystems.

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Informasi Detail

Judul Seri: Invertebrate Biology
No. Panggil: -
Penerbit: : The American Microscopical Society., 2016
Deskripsi Fisik: Invertebrate Biology 135(1): 20–30.
Bahasa: English
ISBN/ISSN: DOI: 10.1111/ivb.121
Klasifikasi: -
Tipe Isi: -
Tipe Media: -
Tipe Pembawa: -
Edisi: -
Subjek: BIOLOGI
Info Detail Spesifik: -
Pernyataan Tanggungjawab: Wati/Agus

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FULL TEXT:The ecological niche of a specialized subterranean spider

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