Podrobný výpis o publikaci

TLUSTE, Claudia, Udo BRÖRING, Tomáš NĚMEC a Klaus BIRKHOFER. Morphometric traits of shells determine external attack and internal utilization marks in the Roman snail in eastern Germany. Web Ecology. 2020, roč. 20, č. 2, s. 87-94. ISSN 2193-3081. Dostupné z: https://dx.doi.org/10.5194/we-20-87-2020.

Další formáty: BibTeX LaTeX RIS

Základní údaje
Originální název	Morphometric traits of shells determine external attack and internal utilization marks in the Roman snail in eastern Germany
Autoři	TLUSTE, Claudia (garant), Udo BRÖRING, Tomáš NĚMEC (203 Česká republika, domácí) a Klaus BIRKHOFER (276 Německo).
Vydání	Web Ecology, 2020, 2193-3081.

Další údaje
Originální jazyk	angličtina
Typ výsledku	Článek v odborném periodiku
Obor	10618 Ecology
Stát vydavatele	Německo
Utajení	není předmětem státního či obchodního tajemství
WWW	URL
Impakt faktor	Impact factor: 1.545
Kód RIV	RIV/00216224:14310/20:00116636
Organizační jednotka	Přírodovědecká fakulta
Doi	http://dx.doi.org/10.5194/we-20-87-2020
UT WoS	000562092700001
Klíčová slova anglicky	DISCOMYZA MEIGEN DIPTERA; FLY DIPTERA; FRUIT-FLY; PREDATOR; LAND; ATTRACTANTS; POPULATIONS; GASTROPODA; PATTERNS; MOLLUSKS
Štítky	rivok
Příznaky	Recenzováno
Změnil	Změnila: Mgr. Marie Šípková, DiS., učo 437722. Změněno: 13. 5. 2021 10:32.

Anotace
Overexploitation, habitat destruction and a changing climate threaten populations of the Roman snail (Helix pomatia Linnaeus, 1758), which has led to a high protection status in Germany. Vertebrate and invertebrate predators, including parasites and facultative parasitoids, further cause pressure on populations. Given the conservation concern for H. pomatia and its rarity in the study region (Cottbus, Germany), we studied how predators and facultative parasitoids utilize H. pomatia shells with a focus on non-invasive field methods. As previous studies indicated that shell size may affect prey selection by predators, morphometric traits were measured in eight subpopulations. We identified the total number and percentage of H. pomatia shells that showed external attack marks by predators and internal utilization marks by Diptera pupae and related those utilization patterns to the morphometric traits of shells. A large proportion of the shells in local subpopulations showed signs of external attack and internal utilization, and both utilization forms were positively correlated. External attacks by predators were more frequent in larger shells and internal utilization by Diptera was more common in shells with higher body density. These results suggest a considerable pressure by predators and potential facultative parasitoids on H. pomatia populations in the study area. Future research should focus on the relationship between snails from the family Helicidae and flies from the genus Discomyza. Conservation programmes should consider abiotic habitat conditions together with potential trophic interactions to maximize the success of conservation strategies.

Anotace

Overexploitation, habitat destruction and a changing climate threaten populations of the Roman snail (Helix pomatia Linnaeus, 1758), which has led to a high protection status in Germany. Vertebrate and invertebrate predators, including parasites and facultative parasitoids, further cause pressure on populations. Given the conservation concern for H. pomatia and its rarity in the study region (Cottbus, Germany), we studied how predators and facultative parasitoids utilize H. pomatia shells with a focus on non-invasive field methods. As previous studies indicated that shell size may affect prey selection by predators, morphometric traits were measured in eight subpopulations. We identified the total number and percentage of H. pomatia shells that showed external attack marks by predators and internal utilization marks by Diptera pupae and related those utilization patterns to the morphometric traits of shells. A large proportion of the shells in local subpopulations showed signs of external attack and internal utilization, and both utilization forms were positively correlated. External attacks by predators were more frequent in larger shells and internal utilization by Diptera was more common in shells with higher body density. These results suggest a considerable pressure by predators and potential facultative parasitoids on H. pomatia populations in the study area. Future research should focus on the relationship between snails from the family Helicidae and flies from the genus Discomyza. Conservation programmes should consider abiotic habitat conditions together with potential trophic interactions to maximize the success of conservation strategies.