OVERLAPPING TERRITORIES OF PSEUDOSIMOCHROMIS-CURVIFRONS MALES AND OTHER HERBIVOROUS CICHLID FISHES IN LAKE TANGANYIKA
OVERLAPPING TERRITORIES OF PSEUDOSIMOCHROMIS-CURVIFRONS MALES AND OTHER HERBIVOROUS CICHLID FISHES IN LAKE TANGANYIKA
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DOI：
10.1007/bf02348596
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发表时间：
1992-04-01
影响因子：
2
通讯作者：
KUWAMURA, T
中科院分区：
文献类型：
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作者：
KUWAMURA, T
食草性慈鱼雄鱼建立直径3-10米的交配区域，包括产卵和摄食两个部位。领地雄性攻击同种雄性，也攻击其他物种。只有同种雄性被赶出了领地。领地雄性在产卵地点向雌性求爱或等待时攻击其他物种，在其领土上的其他地点巡逻和觅食时攻击其他物种。对草食性物种的攻击比对非草食性物种的攻击更频繁，因为草食性物种的数量要多得多。4种丰富的食草性慈鱼的领地与雄性曲尾轮虫的领地基本重叠，未发现种间的共生关系。相反，它们相互攻击，但通过在重叠区域隔离觅食地点共存。雄性卷尾龙与其他食草动物的侵略性共存，可能导致克罗姆付出了保卫它们相对较大的领土、抵御所有食物竞争对手的巨大代价。物种间的食物资源分配也可能促进了共存。
Males of the herbivorous cichlid fish Pseudosimochromis curvifrons established mating territories 3-10 m in diameter, which included both spawning and feeding sites. Territorial males attacked conspecific males and also other species. Only conspecific males were chased out of the territories. Territorial males attacked other species at the spawning sites while courting or waiting for females and at other sites in their territories while patrolling and foraging. Attacks against herbivorous species were more frequent than against non-herbivores since herbivores were much more abundant. Territories of four abundant herbivorous cichlids largely overlapped the territories of P. curvifrons males, Symbiotic relationships were not detected between the species. Instead, they were aggressive towards each other but coexisted by segregating feeding sites in the overlapping areas. The aggressive coexistence of P. curvifrons males with other herbivores may have resulted Crom the energetic costs of defending their relatively large territories against all food competitors. Interspecific food-resource partitioning may also have facilitated the coexistence.