ARTICLE | doi:10.20944/preprints201812.0151.v1
Subject: Biology And Life Sciences, Ecology, Evolution, Behavior And Systematics Keywords: Peripatidae, conservation status, survival, urban populations, threatened species
Online: 12 December 2018 (14:07:09 CET)
ABSTRACT: Charismatic species, like the panda, play an important role in conservation, and velvet worms arguably are charismatic worms. Thanks to their extraordinary hunting mechanism, they have inspired from a female metal band in Japan, to origami worms in Russia and video game monsters in the USA. Objective: To assess their conservation status in Costa Rica. Methods: we located all collection records of the 29 known species from the Onychophora Database in the map of the Costa Rican Conservation Network. Results: We found that seven species are protected inside forest reserves, five in Protected Zones, four in Wildlife Refuges, two in National Parks and one, Principapillatus hitoyensis, in a strictly pristine Biological Reserve. The largest species in the world, Peripatus solorzanoi, occurs both inside a Forest Reserve and in protected private land. Protection inside Costa Rican nature areas is enforced year round by personnel that includes armed guards, and is supported by educational programs in surrounding communities. Twelve species have not been found in protected areas, but in Costa Rica, all biological species, named and unnamed, are protected by law and cannot be legally collected, or exported, without technically issued permits. Conclusion: Like in the only other country with similar information (New Zealand), the conservation of onychophorans seems to be of least concern for at least two thirds of the known species. Epiperipatus isthmicola, recently rediscovered after a century of absence in collections, can be considered Threatened because nearly all of its natural habitat has now been covered by a city.
ARTICLE | doi:10.20944/preprints201811.0264.v1
Subject: Biology And Life Sciences, Ecology, Evolution, Behavior And Systematics Keywords: feeding behavior; Peripatidae; invertebrate behavior; undescribed Costa Rican onychophorans; parental investment
Online: 12 November 2018 (04:51:33 CET)
We report, for the first time in onychophorans, food hiding, parental feeding investment and an ontogenetic diet shift, from adhesive to prey, after their first two weeks of life.