Order Trichoptera

Holzenthal, Ralph W.; Thomson, Robin E.

doi:10.1016/b978-0-12-385026-3.00038-3

“…For example, according to species estimators we only know about 30% of the caddisfly species from the northern Andean region of South America (Venezuela, Colombia, Ecuador, Peru) (RW Holzenthal & B Ríos-Touma, unpublished data). The lack of information on the diversity of species, and their distribution and functional role in aquatic ecosystems, makes predictions of the effects of climate change on these ecosystems and their biota difficult, if not impossible (Holzenthal, Thomson & Ríos-Touma, 2015). …”

Section: Introductionmentioning

confidence: 99%

Diversity and distribution of the Caddisflies (Insecta: Trichoptera) of Ecuador

Ríos-Touma

¹

,

Holzenthal

²

,

Huisman

³

et al. 2017

PeerJ

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BackgroundAquatic insects and other freshwater animals are some of the most threatened forms of life on Earth. Caddisflies (Trichoptera) are highly biodiverse in the Neotropics and occupy a wide variety of freshwater habitats. In Andean countries, including Ecuador, knowledge of the aquatic biota is limited, and there is a great need for baseline data on the species found in these countries. Here we present the first list of Trichoptera known from Ecuador, a country that harbors two global biodiversity “hotspots.”MethodsWe conducted a literature review of species previously reported from Ecuador and supplemented these data with material we collected during five recent field inventories from about 40 localities spanning both hotspots. Using species presence data for each Ecuadorian province, we calculated the CHAO 2 species estimator to obtain the minimum species richness for the country.ResultsWe recorded 310 species, including 48 new records from our own field inventories for the country. CHAO 2 calculations showed that only 54% of the species have been found. Hydroptilidae and Hydropsychidae were the most species rich families. We report the family Xiphocentronidae for the first time from Ecuador as well as several new records of genera from different families.DiscussionAs in the neighboring Andean countries of Colombia and Peru, it is common to find undescribed species of caddisflies. There are vast areas of Ecuador and the northern Andes that are completely unexplored, and we expect that hundreds of new species are yet to be discovered.

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“…The order Trichoptera comprises approximately 15,000 species (including 685 fossils) in 616 genera and 49 families (Morse 2017). The Oriental region harbors the highest number of species (4865 species), followed by the Neotropical region (2562 species) (de Moor and Ivanov 2008;Holzenthal et al 2015;Morse 2011). Species numbers in other biogeographic regions such as the Australasian (1439 species), the East Palearctic (1372 species), the Nearctic (1604 species) and the West Palearctic (1888 species) are lower in comparison (Morse 2011).…”

Section: Introductionmentioning

confidence: 99%

“…The poorly explored Afrotropical region is currently represented by about 1200 species only, belonging to 28 families and 111 genera (Tobias and Tobias 2008). The Antarctic region is the only biogeographic area where no caddisflies have been recorded (Holzenthal et al 2015;Morse 2011).…”

Section: Introductionmentioning

confidence: 99%

Description of the larva of Oecetis mizrain Malicky & Graf, 2012 (Trichoptera, Leptoceridae) and Lepidostoma scotti (Ulmer, 1930) (Trichoptera, Lepidostomatidae) from Chilimo Forest, Central Ethiopia

Terefe¹,

Vitecek²,

Graf³

2018

ZK

1

0

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show abstract

“…The order Trichoptera comprises approximately 15,000 species (including 685 fossils) in 616 genera and 49 families (Morse 2017). The Oriental region harbors the highest number of species (4865 species), followed by the Neotropical region (2562 species) (de Moor and Ivanov 2008; Holzenthal et al 2015; Morse 2011). Species numbers in other biogeographic regions such as the Australasian (1439 species), the East Palearctic (1372 species), the Nearctic (1604 species) and the West Palearctic (1888 species) are lower in comparison (Morse 2011).…”

Section: Introductionmentioning

confidence: 99%

“…The poorly explored Afrotropical region is currently represented by about 1200 species only, belonging to 28 families and 111 genera (Tobias and Tobias 2008). The Antarctic region is the only biogeographic area where no caddisflies have been recorded (Holzenthal et al 2015; Morse 2011). …”

Section: Introductionmentioning

confidence: 99%