首页|Ontogenetic niche specialization of the spider crab Libinia ferreirae associated with the medusa Lychnorhiza lucerna

Ontogenetic niche specialization of the spider crab Libinia ferreirae associated with the medusa Lychnorhiza lucerna

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
  • 维普
Symbiotic relationships in marine environments are not fixed and can change throughout the animal's life. This study investigated the ontogeny of symbiosis of the spider crab Libinia ferreirae with the host medusa Lychnorhiza lucerna. We described the type of relationship, the temporal correlation among species, and food habits. More than 50％ of the sampled crabs were symbionts, most in early life stages. The highest number of crabs found in a single medusa was 11. Symbiosis was observed throughout most of the year but was more evident in warm periods. The crab has many benefits in this relationship with a medusa. One is the use of food resources captured by the medusa, primarily copepods. Because the crab steals the medusa's food, it is a kleptoparasitic relationship. There is a niche partition between symbiont and the free-living crabs as they occupy different habitats and use nonoverlapping food resources. Previous research reported that symbiosis first developed during the crab's last larval phase (megalopa) when crab and medusa are in the same habitat. Observation of the crab's behavior shows that symbiosis occurs when the crab can grab to the medusa when the host touches the sea bottom. The crab also took advantage of water currents, releasing itself from the substrate and then drifting toward the medusa. The symbiotic relationship that crabs have with the medusa provides then with a nursery, food resources, shelter, dispersion, and decreased competition with free-living adult crabs, all essential for the crab's survival.

behaviordevelopmentkleptoparasitismmegalopaniche segregation

Geslaine Rafaela Lemos Gon?alves、Milena Regina Wolf、Mariana Antunes、Felipe Wanderley Amorim、Maria Lucia Negreiros-Fransozo、Antonio Le?o Castilho

展开 >

Group of Studies on Crustacean Biology,Ecology and Culture—NEBECC,Biosciences Institute,São Paulo State University,Botucatu,SP 18618-689,Brazil

Laboratory of Pollination Ecology and Interactions—LEPI,Biosciences Institute,São Paulo State University,Botucatu,SP 18618-689,Brazil

Funda??o de Amparo à Pesquisa do Estado de S?o PauloFunda??o de Amparo à Pesquisa do Estado de S?o PauloFunda??o de Amparo à Pesquisa do Estado de S?o PauloFunda??o de Amparo à Pesquisa do Estado de S?o PauloCentro de Apoio Profissionalizante Educacional e Social(CAPES CIMAR)(CNPq)Research Scholarships(CNPq)Research Scholarships

Biota/FAPESP 2010/50188-82014/13770-12018/01659-02019/00105-323038.004310/2014-85PQ303371/2011-0308653/2014-9

2022

动物学报(英文版)
中国科学院动物研究所,中国动物学会

动物学报(英文版)

CSCDSCI
影响因子：0.198
ISSN：1674-5507
年,卷(期)：2022.68(5)
  • 52