

97
DENVER MUSEUM OF NATURE & SCIENCE
REPORTS
|
No. 3, July 2, 2016
20
th
International Congress of Arachnology
Comprising the tarantulas, purse web spiders, trapdoor
spiders, and their kin, mygalomorphs have long been
a source of intrigue and frustration for many arach-
nologists. Many groups remain problematic in terms
of their systematics. Ctenizidae is one such family. At
present, the nine ctenizid genera (
Bothriocyrtum,
Cteniza, Conothele, Cyclocosmia, Cyrtocarenum,
Hebestatis, Latouchia, Stasimopus
, and
Ummidia
)
remain in a state of phylogenetic uncertainty with
respect to their placement, though it seems clear that
the family is not monophyletic and warrants closer
inspection using modern molecular phylogenetic
approaches. We used anchored hybrid enrichment (AE),
which is a high-throughput, probe-based genomics
technique that can capture hundreds of phylogeneti-
cally informative nuclear loci. Using an AE probe set
specifically designed for Araneae and a combination of
supermatrix and gene tree/species tree approaches we
constructed a molecular phylogeny of the Ctenizidae
along with a number of groups which have histori-
cally fallen among the ctenizid taxa in previous studies
(Idiopidae, Actinopodidae, Euctenicidae, and Migidae).
Keywords: phylogenetics, systematics, ctenizidae,
Anchored Enrichment
Student - Poster Presentation
Sampling protocol and processing of
orb-web spiders. Insights towards conser-
vation strategies
Luz Adriana Gómez Galvis
1
, Alexander Sabogal
González
2
, Cecilia Stephania Cantor-Vaca
1
, Natalia
Herreño Castellanos
3
, Sergio Andres Torres
4
, Franklin
Cala-Riquelme
5
, Nini Johanna Beltran-Martin
1
, Diego
Alejandro Medina Gaitán
6
, Eduardo Flórez Daza
1
1
Instituto de Ciencias Naturales. Universidad Nacio-
nal de Colombia. Carrera 45 No. 26-85, Bogotá,
Colombia;
2
Centro Internacional de Física CIF,
Universidad Nacional de Colombia, Manuel Ancizar
Building. Office 2047, Cra. 45 No. 26-85, Bogotá,
Colombia;
3
Universidad Incca de Colombia, Cra. 13
No. 24-15, Bogotá, Colombia;
4
Universidad Militar
Nueva Granada, Kilometro 2 Vía Cajicá-Zipaquira,
Colombia;
5
Departamento de Zoología, Centro Orien-
tal de Ecosistemas y Biodiversidad, Enramadas 601
esquina Barnada, Santiago de Cuba;
6
Universidad El
Bosque, Av. Cra 9 No. 131A-02, Bogotá, Colombia
lagomezga@unal.edu.coSpiders are among the most abundant and diverse
group of Arthropoda after insects. Due to their wide
distribution, relatively well-known taxonomy and
other biological characteristics, spiders may be useful
for ecological studies, including biodiversity conserva-
tion and management strategies. In this study, we
sampled spiders in three different types of vegetation
including forest, coffee plantations and pastures, in
two differentiated vegetative strata (aerial and lower),
in three localities of an important productive and
conservation area in Cundinamarca, Colombia. We
propose an improved methodology for sample col-
lection in the field and taxonomical identification
that includes immature and adult specimens with the
aim to guarantee better use of collected material. We
present a diversity analysis of two orb-web families,
Araneidae and Tetragnathidae, which includes richness
estimates, rarefaction curves and species similarity for
the three localities. We found differences in richness
and diversity among the studied localities and types of
vegetation. We registered strong statistical difference in
spider density between both strata. We collected a total
of 2052 specimens organized in 61 species: Araneidae
(46 spp) and Tetragnathidae (15 spp). We found five
new record species for Colombia:
Eustala scutigera,
Leucauge acuminata, L. moerens, L. longimana
and
L. funebris
. Concurrently, we recorded five endemic
species:
Hypognatha coyo, Mangora barba, Micra-
thena decorata, Chrysometa calima
and
C. carmelo
.
To appreciate the potential usage of this type of studies
for conservational purposes we present some insights
that could contribute to the ongoing discussions and
efforts concerning landscape conservation under the
current environmental challenges in the Colombian
territory.
Keywords: Araneidae, biodiversity conservation, spider
diversity, Tetragnathidae