Ibm Masyarakat Duasudara Kecamatan Ranowulu Bitung Dalam Melestarikan Kupu-Kupu Dilindungi, Endemik dan Terancam Punah

Kekayaan hayati di CA DuaSudara sangat tinggi, bahkan beberapa di antaranya bersifat endemik atau distribusinya terbatas di sebagian Kawasan Sulawesi saja. Beberapa contohnya adalah Monyet Hitam Sulawesi (Macaca nigra), Tangkasi (Tarsius spectrum), dan Burung Rangkong (Rhyticeros cassidix), Selain satwa khas Sulawesi yang telah banyak dikenal, terdapat juga kupu-kupu yang endemik Sulawesi seperti spesies Troides yang di Sulawesi terdapat dua supspesies yaitu supspesies Troides helena celularis dan Troides hipolitus. Salah satu kelemahan Masyarakat Kelurahan Duasudara adalah kurang menguasai tentang pengetahuan konservasi, manfaat kupu-kupu serta teknik identifikasi flora dan fauna, serta metode konservasi dilapangan. Kegiatan Ibtek bagi Masyarakat ini dilaksanakan di Kelurahan Dua Sudara Keamatan Ranowulu Bitung Sulawesi Utara. Metode yang digunakan dalam Kegiatan PKM ini metode ceramah dan diskusi. Peserta kegiatan ini adalak Lurah Kelurahan Dua Sudara, Aparat Kelurahan, Tokoh Masyarakat dan Karang Taruna Kelurahan Dua Sudara. Bedasarkan hasil kegiatan yang telah dilakukan terhadap Masyarakat Kelurahan Dua Sudara, dapat meningkatkan pemahaman masyarakat tentang keberadaan Spesies Troides yang merupakan kupu-kupu yang dilindungi dan terancam punah.

Female fertile phase synchrony, and male mating and reproductive skew, in the crested macaque

High social status is the primary determinant of reproductive success among group-living male mammals. Primates living in multimale–multifemale groups show the greatest variation in the strength of this link, with marked variation in reproductive skew by male dominance among species, dependent on the degree of female fertile phase synchrony, and the number of competing males. Here, we present data on two groups of wild crested macaques (Macaca nigra), living in the Tangkoko Reserve, Sulawesi, Indonesia. We investigated male monopolization of fertile females in 31 cycles of 19 females, and genetic paternity of 14 offspring conceived during the study period. We show that female fertile phase synchrony was low, that females had few mating partners in their fertile phase, and that dominant males monopolized a high proportion of consortships and matings, resulting in marked and steep mating and reproductive skew. We conclude that female cycle asynchrony provides the opportunity for strong direct male–male competition in crested macaques, resulting in monopolization of females by dominant males, consistent with their marked sexual dimorphism. Our study provides a test of the underlying factors that determine the relative occurrence and strength of different mechanisms of sexual selection, and the phenotypes that evolve as a result.

Intergroup lethal gang attacks do not require fission-fusion dynamics to evolve

ABSTRACTLethal gang attacks, in which multiple aggressors attack a single victim, are among the most widespread forms of violence between human groups. Chimpanzees (Pan troglodytes), as well as wolves (Canis lupus), spotted hyaenas (Crocuta crocuta), and lions (Panthera leo), perform gang attacks during raids. In raids, a few individuals of a group enter another group’s territory and attack its members if found in numerical disadvantage. Current theory predicts that raids and gang attacks are linked to fission-fusion dynamics, i.e., the capacity of a group to split into smaller subgroups of variable size and composition. However, over the last decade, research on social mammals without fission-fusion societies nor raiding have shown that they may also be involved in intergroup lethal gang attacks. Thus, neither fission-fusion dynamics nor raiding are required for gang attacks to evolve. Based on our first-ever reports of intergroup gang attacks in the crested macaque (Macaca nigra), combined with the synthesis of earlier observations of such attacks in several species living in stable groups, we develop a new hypothesis about the proximate causes leading to lethal intergroup aggression. We propose that the ability to estimate numerical odds, form coalitionary bonds, and show hostility towards outgroup individuals may suffice to trigger intergroup gang attacks when the conditions favour an imbalance of power between victims and attackers.

Using occupancy-based camera-trap surveys to assess the Critically Endangered primate Macaca nigra across its range in North Sulawesi, Indonesia

Primates are one of the most threatened groups of mammals. Understanding their patterns of population occurrence and abundance, especially in response to threats, is critical for informing conservation action. The crested black macaque Macaca nigra is the only Critically Endangered species of Sulawesi's seven endemic macaques. Little is known about its distribution or its response to deforestation and hunting. We conducted a camera-trap survey across the entire species range using an occupancy-based analytical approach to (1) establish the first range-wide baseline of occurrence, (2) investigate how environmental and anthropogenic factors influence occurrence, (3) identify priority conservation subpopulations, and (4) test the efficacy of the sampling and analytical protocol for temporal monitoring of M. nigra using occupancy as the state variable. From 9,753 camera-trap days, M. nigra was detected on 473 days at 77 of the 111 camera locations. Species occupancy was 0.66 and highest inside protected areas and closed canopy forest. We identified eight distinct subpopulations, based on distribution and forest fragment size. To inform future monitoring, we used a power analysis to determine if our effort would allow us to detect inter-annual occupancy declines of 10%, and found that 90 camera locations surveyed for 3 months (8,100 camera days) across three consecutive seasons is the effort required to detect such change with 80% certainty. Our study underscores the importance of well-managed protected areas and intact forests for the long-term survival of the crested black macaque, and tests the effectiveness of camera traps to monitor primates at the landscape scale.

Identification of Follower Status Based on Male Proximity Score in Crested Macaque

Crested macaque live in multimale-multifemale social groups where temporary association (consortship) typically occurs. Current theory and these limited qualitative observations suggest the hypothesis that behavior functions as a means for males to gain access to fertile females. The aim of this study was to investigate follower status based on quantitative method. Males were classified as either “consort males,” “followers,” and “non-followers” based on proximity maintanance every 15 minute uses scan sampling. Tactics used by followers were classified into 1) individual challenge, 2) coalitionary challenge, 3) abandoned takeover, and 4) opportunistic takeover. The proportion of successful takeovers by followers was calculated by dividing the number of takeovers by followers by the total number of observed takeovers. The proportion of followers is higher than average on D-5 and earlier, D-4, and D-3. Only two of the four consort takeover tactics were used by followers. For abandoned which made up 40% and for individual tactic was made up to 11.5% of consort takeovers tactic used. This study contribute to our understanding of alternative mating strategy in primate and provide the first quantitative data demonstrating that following is an alternative mating strategy in crested macaque (Macaca nigra).

Avoidant social style among wild crested macaque males (Macaca nigra) in Tangkoko Nature Reserve, Sulawesi, Indonesia

Although it is well established that female crested macaques (Macaca nigra) display very tolerant social styles, less is known about the extent to which crested macaque males can be characterized by the social style concept. We examined core social style traits and other measures of social interactions in three groups of wild crested macaque males in Tangkoko Reserve, Indonesia. Comparisons with males of other macaque species suggest that they display a mixture of tolerant and despotic indicators, a pattern inconsistent with tolerant, despotic or uniformly intermediate designations. Their apparent avoidance of affiliative interactions and reconciliation involving contact suggest that their relationships also contrast with the typically affiliative and relaxed social style of female crested macaques. Rather than labeling them as distinctly tolerant or despotic, we describe the social style of crested males as ‘avoidant’, which may reflect tense relationships due to high levels of risky reproductive competition.

Sulawesi Crested Macaque (Macaca nigra) Grooming Networks Are Robust to Perturbation While Individual Associations Are More Labile

Social and environmental disturbance occurs naturally, and species in bonded social groups should be resilient to it. Empirical evidence of social responses to disturbance in primates, however, remains limited. We constructed social networks using group-level scan samples (N = 299) to test the robustness of grooming networks in a captive group of 20 Sulawesi crested macaques (Macaca nigra) to two management interventions involving environmental and social disturbance. During the first, the institution removed six castrated males and one female, contracepted six of the nine remaining females, and moved the group to a new enclosure. The second involved the introduction of a novel, reproductive male five weeks later. Networks remained stable following the first intervention. However, after introduction of the male, the number of grooming partners and the frequency of grooming with non-maternal kin increased in female-only networks. We observed less marked increases in the grooming frequency and number of grooming partners in whole group networks. Ten weeks later, network structure was more similar to that of pre-intervention networks than post-intervention networks. Our results suggest that reproductive males play a more important role in structuring Sulawesi crested macaque social networks than castrated males, as networks expanded and relationships between non-maternal kin occurred more frequently after introduction of the reproductive male. However, network responses to interventions appeared to be temporary as networks following a period of acclimation more closely resembled pre-intervention networks than post-intervention networks. Our study demonstrates the utility of social network analysis for understanding the impact of disturbance on stable social groups.