An artificial habitat increases the reproductive fitness of a range-shifting species within a newly colonized ecosystem
| Autor: | Bryan C. Benitez-Nelson, Susan Q. Lang, Blaine D. Griffen, Zachary J. Cannizzo |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Marsh Population dynamics Brachyura Eggs Oviposition lcsh:Medicine Wetland Biology 010603 evolutionary biology 01 natural sciences Article Animals Ecosystem Community ecology lcsh:Science geography Multidisciplinary geography.geographical_feature_category Reproductive success Ecology 010604 marine biology & hydrobiology lcsh:R Climate-change ecology biology.organism_classification Lipids Habitat Wetlands Salt marsh Aratus pisonii lcsh:Q Genetic Fitness Mangrove |
| Zdroj: | Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-13 (2020) |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-019-56228-x |
| Popis: | When a range-shifting species colonizes an ecosystem it has not previously inhabited, it may experience suboptimal conditions that challenge its continued persistence and expansion. Some impacts may be partially mitigated by artificial habitat analogues: artificial habitats that more closely resemble a species’ historic ecosystem than the surrounding habitat. If conditions provided by such habitats increase reproductive success, they could be vital to the expansion and persistence of range-shifting species. We investigated the reproduction of the mangrove tree crab Aratus pisonii in its historic mangrove habitat, the suboptimal colonized salt marsh ecosystem, and on docks within the marsh, an artificial mangrove analogue. Crabs were assessed for offspring production and quality, as well as measures of maternal investment and egg quality. Aratus pisonii found on docks produced more eggs, more eggs per unit energy investment, and higher quality larvae than conspecifics in the surrounding salt marsh. Yet, crabs in the mangrove produced the highest quality larvae. Egg lipids suggest these different reproductive outcomes result from disparities in the quality of diet-driven maternal investments, particularly key fatty acids. This study suggests habitat analogues may increase the reproductive fitness of range-shifting species allowing more rapid expansion into, and better persistence in, colonized ecosystems. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|