Feeding-site utilization in three sympatric species of Petrotilapia (Pisces, Cichlidae) from Lake Malawi
Three sympatric sibling species of Petrotilapia, with similar dietary and macrohabitat requirements, occur near Monkey Bay, Lake Malawi. Males and females of all three species fed selectively on the rocky shores. Males utilized less than 6% of the space they defended as a breeding territory for feed...
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| Veröffentlicht in: | Biological journal of the Linnean Society 1985-08, Vol.25 (4), p.331-338 |
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| container_end_page | 338 |
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| container_title | Biological journal of the Linnean Society |
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| creator | MARSH, A. C. RIBBINK, A. J. |
| description | Three sympatric sibling species of Petrotilapia, with similar dietary and macrohabitat requirements, occur near Monkey Bay, Lake Malawi. Males and females of all three species fed selectively on the rocky shores. Males utilized less than 6% of the space they defended as a breeding territory for feeding and although interspecific overlap of territories was considerable, only 2.5% of the feeding space used by territorial males was shared. Males primarily utilized rich food patches which occurred within the territories of highly aggressive Pseudotropheus species, whereas females tended to feed in undefended areas. Although Petrotilapia species are not highly aggressive fishes, there was a well‐defined social dominance hierarchy amongst them and it is suggested that feeding‐site utilization is dependent on social rank. Inter‐and intraspecific differences in feeding‐site utilization probably facilitate species coexistence and thus contribute to the maintenance of the high species diversity which is a characteristic of the ichthyofauna of Lake Malawi. |
| doi_str_mv | 10.1111/j.1095-8312.1985.tb00399.x |
| format | Article |
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C.</creatorcontrib><creatorcontrib>RIBBINK, A. J.</creatorcontrib><title>Feeding-site utilization in three sympatric species of Petrotilapia (Pisces, Cichlidae) from Lake Malawi</title><title>Biological journal of the Linnean Society</title><description>Three sympatric sibling species of Petrotilapia, with similar dietary and macrohabitat requirements, occur near Monkey Bay, Lake Malawi. Males and females of all three species fed selectively on the rocky shores. Males utilized less than 6% of the space they defended as a breeding territory for feeding and although interspecific overlap of territories was considerable, only 2.5% of the feeding space used by territorial males was shared. Males primarily utilized rich food patches which occurred within the territories of highly aggressive Pseudotropheus species, whereas females tended to feed in undefended areas. Although Petrotilapia species are not highly aggressive fishes, there was a well‐defined social dominance hierarchy amongst them and it is suggested that feeding‐site utilization is dependent on social rank. Inter‐and intraspecific differences in feeding‐site utilization probably facilitate species coexistence and thus contribute to the maintenance of the high species diversity which is a characteristic of the ichthyofauna of Lake Malawi.</description><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Animals</subject><subject>Autoecology</subject><subject>Biological and medical sciences</subject><subject>coexistence</subject><subject>competition</subject><subject>diversity</subject><subject>Ecology</subject><subject>Freshwater</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>microhabitat utilization</subject><subject>Petrotilapia</subject><subject>sibling species</subject><subject>social dominance</subject><subject>species persistence</subject><subject>Vertebrata</subject><issn>0024-4066</issn><issn>1095-8312</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1985</creationdate><recordtype>article</recordtype><recordid>eNqVkF2LEzEUQIMoWFf_QxARBWe8mcxH4oOgXbuuVN0HRfEl3GZubLrTmTGZsq2_3hla-m5eAsnJueEw9lRAKsb1epMK0EWipMhSoVWRDisAqXW6v8dm56v7bAaQ5UkOZfmQPYpxAyBEXmUztl4Q1b79nUQ_EN8NvvF_cfBdy33Lh3Ug4vGw7XEI3vLYk_UUeef4DQ2hG2nsPfIXNz5aiq_43Nt142ukl9yFbsuXeEv8MzZ45x-zBw6bSE9O-wX7vvjwbf4xWX69up6_WyZW6kIkmXAOMg2kAbDMxyNVWSVKW0ooJVJOFVZZXThXr1ZWKws1ocMRLJQVWsoL9vzo7UP3Z0dxMNvpc02DLXW7aEReFlkGagTfHEEbuhgDOdMHv8VwMALMFNdszFTQTAXNFNec4pr9-PjZaQpGi40L2FofzwYldQ6Qj9jbI3bnGzr8xwDz_vqTlGIUJEeBjwPtzwIMt6asZFWYH1-uzKVawE8lf5lL-Q-9wp3e</recordid><startdate>198508</startdate><enddate>198508</enddate><creator>MARSH, A. C.</creator><creator>RIBBINK, A. J.</creator><general>Blackwell Publishing Ltd</general><general>Blackwell</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope></search><sort><creationdate>198508</creationdate><title>Feeding-site utilization in three sympatric species of Petrotilapia (Pisces, Cichlidae) from Lake Malawi</title><author>MARSH, A. C. ; RIBBINK, A. J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3951-21ff0290e900a6495187c816c63063ae4e7a72d5ffdbbc98c0deafa49558c1933</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1985</creationdate><topic>Animal and plant ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>Animals</topic><topic>Autoecology</topic><topic>Biological and medical sciences</topic><topic>coexistence</topic><topic>competition</topic><topic>diversity</topic><topic>Ecology</topic><topic>Freshwater</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>microhabitat utilization</topic><topic>Petrotilapia</topic><topic>sibling species</topic><topic>social dominance</topic><topic>species persistence</topic><topic>Vertebrata</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>MARSH, A. C.</creatorcontrib><creatorcontrib>RIBBINK, A. J.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Biological journal of the Linnean Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>MARSH, A. C.</au><au>RIBBINK, A. J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Feeding-site utilization in three sympatric species of Petrotilapia (Pisces, Cichlidae) from Lake Malawi</atitle><jtitle>Biological journal of the Linnean Society</jtitle><date>1985-08</date><risdate>1985</risdate><volume>25</volume><issue>4</issue><spage>331</spage><epage>338</epage><pages>331-338</pages><issn>0024-4066</issn><eissn>1095-8312</eissn><coden>BJLSBG</coden><abstract>Three sympatric sibling species of Petrotilapia, with similar dietary and macrohabitat requirements, occur near Monkey Bay, Lake Malawi. Males and females of all three species fed selectively on the rocky shores. Males utilized less than 6% of the space they defended as a breeding territory for feeding and although interspecific overlap of territories was considerable, only 2.5% of the feeding space used by territorial males was shared. Males primarily utilized rich food patches which occurred within the territories of highly aggressive Pseudotropheus species, whereas females tended to feed in undefended areas. Although Petrotilapia species are not highly aggressive fishes, there was a well‐defined social dominance hierarchy amongst them and it is suggested that feeding‐site utilization is dependent on social rank. Inter‐and intraspecific differences in feeding‐site utilization probably facilitate species coexistence and thus contribute to the maintenance of the high species diversity which is a characteristic of the ichthyofauna of Lake Malawi.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/j.1095-8312.1985.tb00399.x</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0024-4066 |
| ispartof | Biological journal of the Linnean Society, 1985-08, Vol.25 (4), p.331-338 |
| issn | 0024-4066 1095-8312 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_14652208 |
| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Animal and plant ecology Animal, plant and microbial ecology Animals Autoecology Biological and medical sciences coexistence competition diversity Ecology Freshwater Fundamental and applied biological sciences. Psychology microhabitat utilization Petrotilapia sibling species social dominance species persistence Vertebrata |
| title | Feeding-site utilization in three sympatric species of Petrotilapia (Pisces, Cichlidae) from Lake Malawi |
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